ABSOLUTE ENCODERS
index
General
Description
Absolute singleturn and multiturn encoders
PARALLEL interface
SSI interface
ICO (incremental) interface
PROFIBUS interface
2
4
6
8
10
EA40 A - B
EA50 A
EA58 B - C
EA63 A - D
EA58 B - C
EA63 A - D
EA90 A
EA115 A
12
14
16
16
22
22
22
22
Singleturn Absolute
Encoders
PARALLEL
PARALLEL
PARALLEL SSI ICO
PA 66 HOUSING
PARALLEL SSI
METAL HOUSING
-
F
E-F-G
F
E-F-G
Multiturn Absolute
Encoders
PARALLEL SSI
PROFIBUS
EAM58 B - C
EAM63 A - D
EAM90 A
EAM115 A
EAM58 B - C
EAM63 A - D
EAM90 A
EAM115 A
-F
-E-F-G
-F
-E-F-G
28
28
28
28
36
36
36
36
Special Absolute
Encoders
Absolute Singleturn Encoder for tool change
Absolute Explosionproof Encoder
EA40 T - U
EAX80 A - D
Elastic couplings
Connectors
Ouput configurations
Installation and operation precautions
42
44
46
48
50
52
E d i t i o n 0 7 / 2 00 5
ABSOLUTE ENCODERS
General Description
GENERAL DESCRIPTION
Working principle
Photo emitter
Optical disc
The working principle of an absolute encoder is very similar
to the incremental one: a rotating disk, with transparent and
opaque windows, interrupts a light beam acquired by photo receivers. Consequently, light pulses are converted into electric
ones and then they are processed and transmitted by the output electronic.
Photo receiver
Absolute coding
ZONE OF
MULTIPLE
COMMUTATION
The main difference between an incremental and an absolute is how
they determine the position: the incremental determines the position
from the zero index while the absolute bases its position on the output
code, which is unique for each position inside the turn. Consequently,
an absolute encoder never looses the real position neither if the power
goes out nor in case of shifting.
Nonetheless, with an absolute encoder as soon as the power is restored the position is updated and immediately available instead, with an
incremental encoder, the zero set would be required.
The output code is used to specify the absolute position. The first
natural choice would be the binary code because it can be easily processed by external devices but the issue is that it is extracted directly
from the rotating disc: acquiring the position synchronized with the
output data can be difficult due to the simultaneous change of more
than one bit.
For example, if two consecutive binary codes as 7 (0111) and 8
(1000) are considered, it can be noticed that the status of all bits
changes. So, if the attempt to read the code in a specific time is made,
it could be difficult to assure the correctness of the read data because
there is more than one bit change in the same time. Therefore, a Gray
code is used where only the status of one bit changes during two consecutive codes (even from the last to the first).
The Gray code can be easily converted to the binary by using a simple
combinatory circuit (see tables above).
2 Bit optical disc
with binary code
2
1-1
0-0
1-0
0-1
2 Bit optical disc
with grey code
1-0
0-0
1-1
0-1
PHOTORECEIVERS
DECIMAL
BINARY
GRAY
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0001
0011
0010
0110
0111
0101
0100
1100
1101
1111
1110
1010
1011
1001
1000
However, when the number of defined position is not a power of 2,
even with the Gray code more than one bit can change simultaneously
between the last and the first code value.
For instance, in a hypothetical 12 ppr absolute encoder, the code
should be as the one shown in the aside. It is clear that between the
positions 11 and 0 a 3 bit status simultaneous change may involve
reading errors so that’s not acceptable. The Gray excess code is used
to maintain the typical one-bit variation specificity by making the 0
position corresponding to the N value. The N is a number that subtracted from the Gray code converted into binary provides the exact
position value.
The formula to calculate the N value is:
n
N = 2 - IMP
2
Where: IMP
2n
In our example N will be:
24 - 12
2
=
16 - 12
2
GRAY
POSITION
GRAY
0
1
2
3
4
5
6
7
8
9
10
11
0
0000
0001
0011
0010
0110
0111
0101
0100
1100
1101
1111
1110
0000
0
1
2
3
4
5
6
7
8
9
10
11
0011
0010
0110
0111
0101
0100
1100
1101
1111
1110
1010
1011
Error
Example: conversion of
the position number 5
IMP is the number of PPR
is the power of 2 multiple immediately higher than IMP
N=
POSITION
=2
13
0 16
General Description
The Gray excess code
2
The Gray code of the
position number 5 is
0100 which - converted into binary - is
0111 (7 in decimal).
Subtracting from 7 the
N value the real position value which is 72=5) will be obtained.
Singleturn Absolute Encoders
Multiturn Absolute Encoders
SV001IT0705A
A singleturn absolute encoder allows a precise acquisition of the angular position of the shaft to which the encoder is
coupled to even if power goes out. Therefore, each single degree position is converted into a specific code (gray or binary)
proportionally to the bit position. Eltra single-turn encoders can reach a resolution up to 8.192 ppr. (13 bit).
The multiturn absolute encoder series is identified by the EAM prefix.
This device allows a higher number of application representing such
an interesting extension of the single turn encoder. This type of encoder presents a high single turn resolution (8192 ppr) and in the meantime it keeps count of the number of turns (up to 4096) representing
so a significant linear extension maintaining flexibility according to
customer specifications.
The encoder uses a main shaft to which one or more mechanical reducers are mounted in ‘cascade’ allowing a precise code reading even
after a mechanical movement when the device is not powered.
Eltra’s encoders are currently available up to 25 bit resolution equal
to 33.554.432 positions. Safety and performances are among the
highest in the market. Eltra’s multiturn encoders are available with
several electronic and mechanical output.
3
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
PA RA LLEL INTERFAC E
General Description
GENERAL DESCRIPTION
Parallel Interface
Parallel output is the standard one for singleturn absolute encoders mainly because it provides the data output in a ‘bit by bit’
way so there is basically a pin for each bit. However, this type of output is more burdensome for multiturn encoders when the
bit number becomes high. Simply, just consider that a single turn encoder can have a resolution up to 13 bit while a multiturn
can reach up to 25 bit. Moreover, in these bit numbers additional signals as count inversion and data output block (LATCH)
have not been taken in consideration. So, the high number of signal outputs is the main reason for been introduced alternative
transmission protocol as Serial Synchronized Interface (SSI) or field buses (PROFIBUS, CANBUS, etc.).
Output data in Gray format:
bit N (LSB)
bit N-1
..............
.....................................................................................
..............
.....................................................................................
bit 2
bit 1 (MSB)
PARALLEL INTERFACE
Output data can be available, depending on models, in both Gray and binary standard. In the latest encoder generation, the
binary output is obtained by ASIC devices processing the Gray code signals coming from the photo-receiver circuit.
However, in the binary code the correct output data issue is still intrinsically present due to the multiple bit status transitions
between contiguous positions. In order to avoid this problem, in the past an output sync signal (STROBE) was used while the
adoption of programmable logic overcame this limitation. Output data in binary format:
bit N (LSB)
bit N-1
..............
.....................................................................................
..............
.....................................................................................
bit 2
bit 1 (MSB)
There are several output configurations to satisfy different electronic specifications requested from the controllers. Standard
outpus are: NPN, NPN OPEN-COLLECTOR, PNP OPEN COLLECTOR, PUSH-PULL.
4
Command inputs and optional
outputs
STANDARD SIGNAL
U/D: the encoder will increase the counting while the shaft
rotates clock-wise. It is equivalent to rotate the encoder
shaft in the opposite direction.
INPUT
HIGH STATE
LOW STATE
U/D
LATCH
RESET
Inverts the code
Blocks the code
Output reset
No effect
No effect
No effect
General Description
As previously mentioned, external signals can control and command encoder output as reported below.
OPTIONAL SIGNALS
(directly contact our offices for availability):
LATCH: when connected, it maintains the current data as
output. In this way, while the encoder shaft continues to
turn, the output data doesn’t change.
RESET: it sets the zero position.
PARALLEL INTERFACE
SV002IT0705A
STROBE: this signal is available only with binary code and
indicates when it is possible to read the data. In fact, the
logical status of the STROBE changes when the data is
available (all bits have been updated).
5
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
SS I INTE RFA C E
General Description
GENERAL DESCRIPTION
Introduction
Evolution in automation is continuously growing and so its request for precision in measurement devices and consequentially
also in absolute encoder. To satisfy these demands, absolute encoders have been designed with higher and higher resolutions.
However, higher precision means an increasing number of bits and consequently a growing need of wires. SSI interface was
created in order to contain installation costs and to simplify wiring. This interface transmits data in a serial mode by using only
two signals (CLOCK and DATA), independently from the precision of the encoder.
Description
MONO
STABLE
Parallel/serial
converter
CONTROL
Input
Circuit
Encoder
reading system
Codede disc
The SSI interface allows the transmission of the absolute
encoder position data by a serial line synchronized by a
clock. The following figure shows the block diagram of an
encoder featuring an SSI interface:
S S I I N T E R FA C E
driver
The working principle of an encoder with an SSI interface
is very similar to a standard one. Main parts are: a light
source, a disc with transparent and opaque windows, photo-electric receivers, comparison/trigger circuits, a parallel/
serial converter, a mono-stable circuit, an input circuit for
the clock signal and an output driver for the data signal.
The position data is obtained by the encoder reading
system and continuously transmitted to a parallel/serial
converter (based by a “shift register” with parallel loading).
When the mono-stable circuit is activated by a clock signal
transition, the data is stored and transmitted to the output
synchronized with the clock signal. CLOCK and DATA
signals are transmitted differentially (RS422) to enhance
immunity from interference and to allow longer transmission distances.
optocoupler
100ohm
CLOCK+
100ohm
1nF
1nF
100ohm
CLOCK100ohm
CLOCK signal circuit input
DATA
26LS31
DATA
DATA signal circuit output
6
Working Principle
When quiescent, CLOCK and DATA signals have a high
logical status and the mono-stable circuit is disabled.
Output frequency from 100KHz to 1MHz
Monostable time (10-25µS)
Time between two clock sequences > 35 µS
Tp
Tm
General Description
CLOCK
Tm
Tp
1. On the first CLOCK signal descent front, the mono-stable
is activated and the parallel value at the P/S converter input
is stored into the shift register.
2. On the CLOCK signal ascent front, the Most Significant
Bit (MSB) is copied into the DATA signal output.
3. On the CLOCK descent front (when the signal is stable)
the controller acquires the level value from the DATA signal
and the mono-stable is re-activated.
4. On each further ascent front of the CLOCK pulse sequence, following bits up to the least significant one are
copied in the DATA signal output and then acquired by the
control on the descent front.
5. At the end of the CLOCK pulse sequence, when the
external control has also acquired the value of the Least Significant Bit (LSB), the CLOCK pulse sequence stops and
therefore the mono-stable is no longer re-activated.
6. Once the mono-stable time (Tm) has elapsed, the DATA
signal returns to a high logical status and the mono-stable
disables itself.
CLOCK
DATA
Gn
G N-1
G1
G0
MONOSTABLE
1
5
3
2
6
Tr a n s m i s s i o n P r o t o c o l
The frame length of the transmitted data depends only on the encoder type (singleturn or multiturn) and not on the resolution.
In fact, the standard frame length for a singleturn encoder is 13 bits, whilst for a multiturn one it is 25 bit. The MSB is in the
center of the data, as shown by the below reported table:
2T
12
11
10
9
8
7
6
5
4
3
2
1
4096
2048
1024
512
256
128
64
32
16
8
4
2
2
3
4
5
6
7
8
G n+8
G n+8
G n+8
G n+8
0
0
0
0
0
0
0
0
G n+7
G n+7
G n+7
G n+7
G n+7
0
0
0
0
0
0
0
G n+6
G n+6
G n+6
G n+6
G n+6
G n+6
0
0
0
0
0
0
G n+5
G n+5
G n+5
G n+5
G n+5
G n+5
G n+5
0
0
0
0
0
G n+4
G n+4
G n+4
G n+4
G n+4
G n+4
G n+4
G n+4
0
0
0
0
3
4
5
6
7
8
9 10 11 12 13
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
2n n
Ta
1
1
1
1
1
1
1
1
1
1
1
1
1 Gn+11 Gn+10 G n+9
0 Gn+10 G n+9
1
0 G n+9
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
G n+3
G n+3
G n+3
G n+3
G n+3
G n+3
G n+3
G n+3
G n+3
0
0
0
G n+2
G n+2
G n+2
G n+2
G n+2
G n+2
G n+2
G n+2
G n+2
G n+2
0
0
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
G n+1
0
Gn
Gn
Gn
Gn
Gn
Gn
Gn
Gn
Gn
Gn
Gn
Gn
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-1
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-2
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
G n-3
0
G n-4
G n-4
G n-4
G n-4
G n-4
G n-4
G n-4
G n-4
G n-4
G n-4
0
0
G n-5
G n-5
G n-5
G n-5
G n-5
G n-5
G n-5
G n-5
G n-5
0
0
0
G n-6
G n-6
G n-6
G n-6
G n-6
G n-6
G n-6
G n-6
0
0
0
0
G n-7
G n-7
G n-7
G n-7
G n-7
G n-7
G n-7
0
0
0
0
0
G n-8
G n-8
G n-8
G n-8
G n-8
G n-8
0
0
0
0
0
0
G n-9
G n-9
G n-9
G n-9
G n-9
0
0
0
0
0
0
0
G n-10 G n-11 G n-12 G n-13
G n-10 G n-11 G n-12 0
0
G n-10 G n-11 0
0
0
G n-10 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
8192
4096
2048
1024
512
256
128
64
32
16
8
4
13
12
11
10
9
8
7
6
5
4
3
2
Singleturn
Number of turns
The transmitted frame format depends on the bit per turn
and bit for turns encoder configuration.
Multiturn
ppr
N = number of bits per revolution
T = number of bits for turns
SV003IT0705A
1
T
2
S S I I N T E R FA C E
1
Ta = Tm-Tc
2
Tc = clock period
Tm = monoflop time
7
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e-mail: [email protected]
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
ICO INTERFACE
General Description
GENERAL DESCRIPTION
Introduction
Absolute encoders with Incremental Code Output (ICO) combine, in a single product, advantages of both absolute and incremental encoders. ICOs are absolute encoders (they provide the absolute position within the single revolution) using the same
output signals as incremental encoders. Main advantage of ICO encoders is – specially with high resolution – the number of
wires because it is the same as an incremental encoder so substantially reduced compared to a standard absolute encoder.
Moreover, as with incremental encoders, a simple counter is sufficient for reading the position instead of dedicated boards or
multi I/O instruments.
Description
8
ABSOLUTE + INCREMENTAL
CODED DISC
I C O I N T E R FA C E
From the reading system point of view, an ICO encoder is exactly made as a standard absolute one. Essentially the light beam
is detected by photo-receivers and interrupted by a rotating disc with transparent and opaque windows. However, ICO encoders
have a disc etched both with tracks for the absolute bit code and with tracks of an incremental encoder. Incremental output
signals are out of 90 electrical grades one from the other and phased with the absolute code. The following figure shows the
encoder block diagram:
Absolute encoder
gray coded bits
MICROCONTROLLER
Virtual channel A and B
from abs olute pos ition
reading
Incremental encoder
channel A and B
A
OUTPUT
INTERFACE
ASIC
zero position
decoder
A
B
B
Z
Z
Please note that a micro-controller handles encoder operations and initialization sequences. It also reads the absolute position
and controls the ASIC device. The ASIC integrates a switch for A and B channels and a position decoder for the Z signal generation. Finally, the output interface converts the signals from the ASIC to the final electronic output signals.
Working Principle
RESTART
READY
Z
A
B
50ms
When that pulse sequence is completed, the READY signal commutes to a high logical level and the counter has the absolute encoder position. Then, the micro-controller releases the control of A, B and Z channel outputs and the system managing the incremental
encoder starts working. The described steps are called ‘START-UP’ sequence: when completed, the encoder is effectively ready to
work.
U / D
RESTART
The U/D (Up-Down) input allows the inversion of the detected rotation direction represented by the increasing or
decreasing the output data. By connecting this input to
the power supply voltage, the count increases rotating the
shaft clockwise. Vice versa, connecting U/D to the 0 V (or
not connected), the output data value increases when the
shaft rotates counterclockwise.
When the RESTART input is activated for at least 50ms
the encoder executes the start-up sequence. It can be
automatically executed when the power goes on, by permanently connecting the RESTART input to the power
supply voltage.
General Description
When the encoder is powered up, it goes into a stand-by
state where A, B and Z channels are at a low logical level
and the READ output is disabled. In this state the encoder
does not work and any shaft rotation does not produce any
effect on the output channel status.
To make the encoder working, it is necessary to activate
the RESTART input for at least 50 ms. In this way the
microcontroller managing the encoder reads the absolute position and then transmits a number of pulses equal
to the absolute position detected by the A and B output
channels. A pulse on the Z channel is transmuted before
the position pulse sequence allowing in such way a zero
setting of the counter.
Resolution
levels
ICO absolute encoders are available with a resolution up to
a maximum of 1.024 ppr. The resolution is referred to the
incremental output. In fact, a 1.024 ppr ICO encoder has
a resolution equal to a 4.096 ppr of a standard absolute
encoder. This is thanks to a x4 multiplication factor in the
encoder reading device.
If the encoder is moving at the beginning of the ‘START-UP’
procedure, i.e. due to vibrations or drive offset, the initial
read position can be different when the transmission of the
data as pulse sequence is completed. In order to avoid this
situations, the encoder checks the absolute position value
after the pulse sequence has been transmitted. If there is
any difference, the encoder transmits again the absolute
position until no difference is detected. Then the ‘STARTUP’ stops and the READY output is activated. If variations
in the position are quicker than transmissions, READY will
not be activated.
Output
configurations
I C O I N T E R FA C E
The READY output indicates the encoder working status.
When it has a low logical level, it means that the encoder is
not functioning and so the RESTART input has to be activated. When the ‘START-UP’ is completed, the READY signal
has a high logical level meaning the encoder is ready to
work. The READY output also indicates any encoder malfunctioning due, for instance, to power supply interruptions
or to internal faults. If it is continuously monitored, it can be
used as a real alarm signal.
SV004IT0705A
SIGNAL
TRACKING
READY
Push-Pull and Line Driver output electronics are available.
READY output is available only with Push-Pull electronic.
9
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
PROFIBUS INTE RFA C E
General Description
GENERAL DESCRIPTION
PROFIBUS
General Information
PROFIBUS (Process Field Bus) is a serial communications standard for devices connected to automation networks (field bus).
It is an open protocol defined by the DIN 19245 that became European standard as EN 50170 volume 2. Profibus is promoted
by Siemens and is widely diffused all over Europe. Thanks to the definition of three different communication profiles DP, FMS
and PA, this field bus is suitable for many requirements in automation system. Starting with applications requiring a high cyclical
exchange speed of a reduced number of bit (Profibus DP), up to the management of complex communications between “intelligent” devices (Profibus FMS) or tasks strictly related to automation process (Profibus PA).
Hereinafter the attention will be focused on the DP version (decentralized periphery), which is the standard solution to manage
devices by a bus. These devices usually are: I/O modules, sensors/transducers or actuators on a low level in automation systems.
INDUSTRIAL
PROFIBUS
NETWORK
PROFIBUS INTERFACE
PROFIBUS DP
characteristics
10
NETWORK TOPOLOGY: It is a common bus structure (closed on both sides) where up to 126 devices can be connected at the
same time. If the physical support is an RS485 interface, up to 32 nodes can be inserted without using signal repeaters/re-generators.
HARDWARE LEVEL: In addition to the RS485 differential serial technology transmission, an optical fiber connection can be used.
In any event, DP and FMS devices can co-exist in the same network. They share the same harware interface communication
(they are the same levels 1 and 2 of the ISO/OSI stack). The established standard requires an extremely accurate communication
speed between 9.6 kBaud (min) and 12 kBaud (max).
DEVICES PRESENT IN THE NETWORK: It is possible to divide the devices into three classes: class 1 Master DP(DPM1), class 2 Master DP (DPM2) and Slave. The class 1 includes all the devices periodically exchanging information with distributed peripheral
(they can directly manage the I/O network data with the other nodes, mainly slaves). The class 2 masters are designated to configure and to monitor network status and devices connected to it. Slaves have the task of directly exchanging information with
the external word in both directions (in and out). Typical examples of slaves are: digital I/O, encoders, drivers, valves, different
types of transducers, etc.
BUS ACCESS METHODS: Two configurations are available in a bus with single or multi master operating ways: the ‘Token Passing’
one, for exchanging information about network management among possible available masters, and the well known ‘polling
interrogation’ for the master-slave communication.
The main characteristics implemented in the Profibus DP protocol are as follows:
Periodic data exchange: After the slave initialization step, every master is configured in order to exchange a maximum of 244
input bytes and 244 output bytes with every slave. The effective data exchange rate is based on the selected BaudRate, on the
nodes present in the network and on the specific bus settings. Considering the maximum data exchange rate of 12 Mbaud, the
Profibus DP is one of the fastest field buses.
Synchronization: Command controls are available (they are sent by the master in multicast). This gives the possibility to create a
synchronous acquisitions through a slave, a group or all the slaves (Freeze Mode). Outputs sent to the slave have similar behavior. (Sync Mode).
Parameterization and configuration security: After a preset period of time - if the communication between the master/s and the
slave/s is not repeated - the system goes into a safe status.
Diagnostic functions: Each slave can require to the master to be set up for reading its own diagnostic. In such way any possible
problem occouring in the slave can be easily localized. The diagnostic can contain up to 244 bytes of information. Among them,
the first six are mandatory for each DP slave.
Dynamic slave management: There is the possibility to activate or disactivate slaves present in the network. Moreover, it is possible
to change by the bus slaves addresses that make possible this function.
Easy network configuration: Main characteristics of each device present in the network are listed in the form of a GSD file complying to Profibus specifications. This simplify the set up and the configuration of the device by a graphic tools suitable for the
purpose, such as the Siemens COM PROFIBUS software. As mentioned, the master-slave exchange data takes place periodically
depending on the topology of the network and on the number of nodes present. However, before this step the slave has to be
successfully parameterized and configured.
Parameter setting: The master sends to the slave a series of parameters necessary to specify its operation. The standard requires
7 bytes containing the mandatory information for the slave. Additional data can start from the eighth byte in the DU field (Data
Unit, for more information see the Profibus DP) up to a maximum of 244 bytes for the communication frame.
Configuration: This step starts when the master has successfully set slave’s parameters. During this step the master specifies
the number and type of data, or better, the number of bytes to be exchanged with the slave both for incoming and outgoing
information. This data is also present in the DU field of the communication frame: if the slave accepts the configuration, it can
periodically exchange with the master.
Periodic exchange: The master specifies within the DU field frame the necessary information and the slave sends requested data
within the reply frame. During periodic exchange, the slave may advise the master that a new diagnostic data is ready and then it
asks to the master if it prefers reading this information in the next polling instead of the input data coming from the peripheral.
General Description
Main Functions:
NETWORK
CONFIGURATION
BETWEEN THE GDS
FILES
PROFIBUS INTERFACE
As already mentioned, the master-slave data exchange is periodic and essentially depends on the network topology and on the
present node number. However, before starting the data exchange, it is necessary that slave parameter settings and slave configuration have been successfully completed. More details are as follows:
PARAMETER SETTING: During this step the master sends to the slave a series of operating parameters necessary for specifying
its operation. The standard requires 7 bytes containing the mandatory information for the slave. Additional data can start from
the eighth byte in the DU field (Data Unit, for more information see the Profibus DP) up to a maximum up to a maximum of 224
bytes.
CONFIGURATION: When the master successfully set slave parameters, the configuration process starts. Then, the master specifies
the number and type of data represented from the incoming and outgoing bytes number which has to be exchanged with the
slave. This data is also present in DU field; if the slave accepts the configuration, it will begin to periodically exchange data with
the master.
PERIODIC EXCHANGE: The master specifies within the DU field frame the needed information and the slave will send requested
data in the reply frame. During periodic data exchange the slave may advise the master that a new diagnostic data is ready
and then it asks to the master if it prefers reading this information in the next polling instead of the input data coming from the
peripheral.
SV005IT0705A
M a s t e r- S l a v e C o m m u n i c a t i o n
11
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e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA40 A/B
SINGLETURN ABSOLUTE
ENCODER
Singleturn ABSOLUTE ENCODERS
Absolute Encoder
Reduced dimensions absolute encoder.
Main characteristics:
Up to 256 ppr (8 bit) resolution
Several output types available.
Up to 28 Vdc input voltage.
Output cable.
Up to 6.000 rpm
Up to IP66 sealing
Ordering code
Full stop to separate special
versions
EA 40
Singleturn absolute
encoder series
A
256 G 8/28 R
P
6
6
X
P
.
EA
R Radial
A Axial
40
P
Type of flange
mod. EA40A
mod. EA40B
Cable output (standard length 0,5 m)
R.P.M.
A
B
3 3000 with IP66
6 6000 max
Resolution
Enclosure rating
2/4/8/16/32/64
128/256
90/180
X Standard IP54
S Optional IP66
Shaft diameter
Please directly contact our offices for pulses availability
6
Code type
Gray
Logic
G
N Negative
P Positive
Input voltage
5
8 ÷ 28
ø 6 mm
Output types
N
C
R
U
NPN (negative logic standard)
NPN OPEN COLLECTOR (negative logic standard)
PNP (positive logic standard)
PNP OPEN COLLECTOR (positive logic standard)
For optional about output types please refer to the absolute output section
12
XXX
Special version code
numbered from 001 to 999
Body dimension
EA40 A/B
R
EA 40
A
Electrical specifications
Resolution
40.5
2 10
Input voltage
ø30
2 / 4 / 8 / 16 / 32 / 64 / 128 /256
90 / 180
5 V d c / 8 ÷ 2 8 Vd c
N°4 M3 x 90°
Source and sink
current
Output types
Output
frequency
150 mA MAX
40 mA for channel
NPN / NPN OPEN COLLECTOR /
PNP / PNP OPEN COLLECTOR
100 KHz output code
N°3 M3 x 120°
Code
EA 40
Gray
B
Mechanical specifications
40.5
44
2 10
Shaft diameter (mm)
36.5
ø42
ø6 g6
Enclosure rating
ø6 g6
I P 5 4 st a n d a r d
IP66 optional
R.P.M. Max
3000 with IP66
6000
MAX shaft
load
5N (0.5 Kp) axial
5N (0.5 Kp) radial
Shock
50 G for 11 msec
Singleturn ABSOLUTE ENCODERS
ø6 g6
ø42
ø20h7
Input current with no
output load
Nº4 ø3.5
Connections and standard
colours
Bearings
WIRE COLOURS
green
FUNCTION
G
bit 1 (LSB)
G0
yellow
bit 2
G1
blue
bit 3
G2
brown
pink
bit 4
G3
bit 5
G4
white
bit 6
G5
gray
bit 7
G6
violet
bit 8
G7
/
/
/
/
/
/
red-blue
U/D
/
black
0 Volt
/
red
+ Vdc
/
10 9 revolutions
n° 2 ball bearings
Shaft material
Stainless steel AISI303
Body material
Aluminium D11S - UNI 9002/5
Housing material
PA66 reinforced with fiber glass
Operating
temperature
0°÷ +60°C
Storage
temperature
-15°÷ +70°C
Weight
AS000IT0705A
Bearings life
10G 10 ÷ 2000 Hz
100 g
EA40 A/B
Vibrations
13
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA50 A
SINGLETURN ABSOLUTE
ENCODER
Singleturn ABSOLUTE ENCODERS
Absolute Encoder
Ø50 absolute encoder. Main characteristics:
Up to 1.024 ppr (10 bit) resolution.
Several output types available.
Up to 28 Vdc input voltage.
Output cable with connector.
Up to 6.000 rpm speed rotation
Up to IP66 sealing
Ordering code
Full stop to separate special
versions
EA 50
Singleturn absolute
encoder series
A
360 G
5
N
N
6
6
X
P
.
R Radial
50
P Cable output (standard length 0,5 m)
VB 15 pin connector type
Type of flange
mod. EA50A
R.P.M.
A
3 3000 with IP66
6 6000
Resolution
2/4/8/16/32/64
128/256/512
90/180/360
250/500
Enclosure rating
X IP54
S Optional IP66
Shaft diameter
Please directly contact our offices for pulses availability
6
Code type
Gray
Logic
G
N Negative
P Positive
Input voltage
5
8 ÷ 28
ø 6g6 mm
Output types
N
C
R
U
NPN (negative logic standard)
NPN OPEN COLLECTOR (negative logic standard)
PNP (positive logic standard)
PNP OPEN COLLECTOR (positive logic standard)
For optional about output types please refer to the absolute output section
14
XXX
Special version code
numbered from 001 to 999
EA
Body dimension
EA50 A
R
A
Electrical specifications
ø60
Resolution
Input current with no
output load
ø35
ø50
Input voltage
Source and sink
current
N°3 M3X120°
Output types
66
13
Output
frequency
2
5 V d c / 8 ÷ 2 8 V dc
150 mA MAX
40 mA for channel
NPN (Negative logic)
NPN Open Collector (Negative logic)
PNP (Positive logic)
PNP Open Collector (Positive logic)
100 KHz output code
Gray
ø44
ø6g6
ø25h7
Code
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 /
512 / 90 / 180 / 360 / 250 / 500
10
Mechanical specifications
3
Shaft diameter (mm)
3
ø6 g6
SKINTOP
Enclosure rating
42
10.5
R.P.M. Max
3000 with IP66
6000 con IP54
MAX shaft
load
5N (0.5 Kp) axial
5N (0.5 Kp) radial
Shock
50 G for 11 msec
Vibrations
VB15
I P 5 4 st a n d a r d
I P 6 6 o p t i o n a l ( wit h Skin t op )
Bearings life
Bearings
Singleturn ABSOLUTE ENCODERS
EA 50
10G 10 ÷ 2000 Hz
10 9 revolutions
n° 2 ball bearings
Stainless steel AISI303
Body material
Aluminium D11S - UNI 9002/5
Housing material
WIRE COLOURS
green
PIN
"V15MP”
1
FUNCTION
G
bit 1 (LSB)
G
0
2
yellow
bit 2
G
1
blue
bit 3
G
2
3
brown
pink
bit 4
G
3
4
bit 5
G
4
5
white
bit 6
G
5
6
gray
bit 7
G
6
7
violet
bit 8
G
7
8
gray-pink
bit 9
G
8
9
bit 10
G9
/
/
11
/
/
12
red-blue
U/D
/
13
black
0 Volt
/
14
red
+ Vdc
/
15
white-green
PA66 reinforced with fiber glass
Operating
temperature
0°÷ +60°C
Storage
temperature
-15°÷ +70°C
Weight
250 g
10
EA50 A
Connections and standard
colours
Shaft material
AS001IT0705A
16
15
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA
PARALLEL-SSI-ICO
Singleturn ABSOLUTE ENCODERS
with PA 66 housing
SINGLETURN ABSOLUTE
ENCODER
Absolute singleturn PARALLEL encoder
description
Resolutions available up to 13 bit and 8.192 ppr. Wide application range thanks to several models and different flange types. This series assures
high reliability even in the most tough industrial applications. It is available with cable connector output and protection class up to IP66. Gray
and binary code output with several electronics available: NPN, NPN OPEN COLLECTOR, PNP and PUSH PULL. Please refer to the absolute
output section.
E A PA R A L L E L - S S I - I C O
Absolute singleturn SSI encoder
description
16
This series is designed to satisfy the new serial transmission philosophy of data output. A 13 bit word data is the standard output for these encoders. Meaningful bits are proportionally to the chosen encoder resolution. This type of transmission reduces wiring issues in order to maintain
outstanding device performances. Only a four wire connection is needed: a pair for the position code and the other one for the clock signal, both
transmitted with differential logic. In order to satisfy all dimensional requirements, a wide and complete range of mechanical parts is available.
Absolute singleturn ICO encoder
description
The only encoder available on the market featuring an absolute output with the simplicity of the incremental one and adding an easy wiring system. Thanks to the integration of a micro-controller, it provides all the advantages of an absolute encoder transmitting the data as an incremental
one (A, B) with a transmission frequency between 0 and 10 kHz. As for Parallel and SSI series, a broad selection of mechanical configuration is
available in order to assure an easy mounting according to customer requirements.
PARALLEL
encoder ordering code
Full stop to separate special
versions
EA 63
512 G 8/28 N
N
L
10
X
6 MA
R
.
XXX
Special version code
numbered from 001 to 999
EA
Body dimension
58
63
R Radial
A Axial
PD 16 poles with 1,5 m standard output cable
PE 32 poles with 1,5 m standard output cable
MA 19 poles MS type connection
Type of flange
mod. EA63
mod. EA58
mod. EA58
mod. EA63
mod. EA63
mod. EA58 / EA63
mod. EA63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 (with the exception of EA63 F/G)
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
90/180/360/720/1440/2880/225/
450/900/1800/3600
250/500/1000/2000/4000
Shaft diameter
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E
9 ø 9,52g6 mm - 63A/D/E
10 ø 10g6 mm - 58B/C - 63A/D/E
Please directly contact our offices for pulses availability
Bore diameter only for mod. 58F - 63F/G
Code type
Binary
Gray (Standard)
8
9
10
12
14
15
B
G
Please directly contact our offices for binary offset code (0-XXX).
Input voltage
5
8 ÷ 28
Output types
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
N
NPN OPEN COLLECTOR (negative logic standard) C
PNP (positive logic standard) R
PNP OPEN COLLECTOR (positive logic standard) U
PUSH PULL with short cicruit protection(positive logic standard)
P
NPN (negative logic standard)
L
S
X
Latch
Strobe (only for binary code)
To be reported if not used
Logic
N Negative
P Positive
For optional about output types please refer to the absolute output section
Output connections for absolute singleturn
PARALLEL encoder
FUNCTION
bit 1 (LSB)
B/G
bit 2
16 WIRE CABLE
COLOURS
B/G
32 WIRE CABLE
COLOURS
PIN
M19MP
0
green
green
A
B/G
1
1
yellow
yellow
B
2
0
bit 3
B/G
2
blue
blue
C
bit 4
B/G
3
3
brown
brown
D
bit 5
4
B/G
4
pink
pink
E
B/G
5
5
white
white
F
B/G
6
6
gray
gray
G
B/G
7
7
violet
violet
H
B/G
8
8
gray/pink
gray/pink
J
9
9
white/green
white/green
K
bit 6
bit 7
bit 8
bit 9
bit 10
B/G
bit 11
B / G
10
10
brown/green
brown/green
L
bit 12
B / G
11
11
white/yellow
white/yellow
M
bit13
B / G
/
12
12
yellow/brown
yellow/brown
N
/
/
P
/
/
yellow/gray
R
/
/
/
S
0 Volt
/
/
black
black
T
U/D
/
red/blue
red/blue
U
+ Vdc
/
red
red
V
/
LATCH
Singleturn ABSOLUTE ENCODERS
Body dimension
E A PA R A L L E L - S S I - I C O
Absolute encoder
singleturn
A
17
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
SSI
encoder ordering code
Full stop to separate special
versions
Singleturn ABSOLUTE ENCODERS
EA 63
Absolute encoder
singleturn
A
512 G 8/28 S
X
X
10
EA
.
XXX
R Radial
A Axial
58
Body dimension 63
Body dimension
PC 12 poles with 1,5 m standard output cable
MC Connector MS type 7 poli
HA Connector H type 12 poli
Type of flange
mod. EA63
mod. EA58
mod. EA58
mod. EA63
mod. EA63
mod. EA58 / EA63
mod. EA63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 (with the exception of EA58 F and EA63 F/G)
Resolution
Shaft diameter
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E
9 ø 9,52g6 mm - 63A/D/E
10 ø 10g6 mm - 58B/C - 63A/D/E
Please directly contact our offices for pulses availability
Bore diameter only for mod. 58F - 63F/G
8
9
10
12
14
15
Code type
Binary
Gray (Standard)
B
G
Please directly contact our offices for binary offset code (0-XXX).
E A PA R A L L E L - S S I - I C O
R
Special version code
numbered from 001 to 999
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
90/180/360/720/1440/2880/225/
450/900/1800/3600
250/500/1000/2000/4000
18
6 MC
X
Input voltage
5
8 ÷ 28
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
Output types
SSI (Serial Synchronous Interface)
ø 8H7 mm
S
X
To be reported if not used
Logic
X To be reported if not used
Output connections
for SSI
12 WIRE CABLE
COLOURS
PIN
M07MP
+ Vdc
red
G
8
0 Volt
black
F
1
5
FUNCTION
PIN
H12
U/D
red/blue
E
Dato +
green
C
2
Dato -
brown
D
10
Clock +
yellow
A
3
Clock -
orange
B
11
ICO
encoder ordering code
Full stop to separate special
versions
EA 63
512 G 8/28 N
N
L
6 MA
X
10
R
.
XXX
EA
R Radial
A Axial
58
Body dimension 63
Body dimension
PC 12 poles with 1,5 m standard output cable
MA 19 poles MS type connection
Type of flange
mod. EA63
mod. EA58
mod. EA58
mod. EA63
mod. EA63
mod. EA58 / EA63
mod. EA63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 with the exception of EA63G
Shaft diameter
Resolution
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E
9 ø 9,52g6 mm - 63A/D/E
10 ø 10g6 mm - 58B/C - 63A/D/E
360/500/512
720/1000/1024
Please directly contact our offices for pulses availability
Code type
Incremental ouput code
I
Singleturn ABSOLUTE ENCODERS
Special version code
numbered from 001 to 999
Bore diameter only for mod. 58F - 63F/G
8
9
10
12
14
15
Input voltage
5
8 ÷ 28
Output types
LINE DRIVER
PUSH PULL with short circuit protection
L
P
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
For optional about output types please refer to the absolute output section
A
B
10 KHz (standard)
1 KHz
Logic
X To be reported if not used
Output connections
for ICO
FUNCTION
+ Vdc
12 WIRE CABLE
COLOURS
PIN
M19MP
red
V
0 Volt
black
T
U/D
red/blue
U
Ready
gray
G
Restart
violet
H
green
A
A
A-
brown
D
B
yellow
B
B-
pink
E
Z
blue
C
Z-
white
F
E A PA R A L L E L - S S I - I C O
Absolute encoder
singleturn
A
19
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA63 A
61
max40
6
20
ø8 / 9.52 / 10g6
ø31.75h7
ø58.7
ø63.5
ø47.5
30°
Nº3 x M5
3
90°
58
42
59
30
ø67.3
30°
30
3
90°
3
Nº3 X M4
3
33
EA58 C
EA63 D
63
54
30
20
ø6/8/9,52/10g6
ø36f6
58
48
9
30°
63.5
52.4
Nº4 ø5.5
max40
61
6 20
68.3
61
7.3
R37
33
30°
4 10
ø8 / 9.52 / 10g6
ø31.75h7
30°
33
Singleturn ABSOLUTE ENCODERS
ø73.5
Ø6/8/9,52/10g6
ø50h7
ø50
EA58 B
90°
Nº3 X M3
90°
33
20
8.5
33
90°
°
90
20
EA63 G
ø8/10/12/14/15h7
20
ø32
3.5
20
33
max40
61
7.3
45°
M4
24
.5
ø63.5
24.5
14
7.3
90°
20
ø8/10/12/14/15H7
61
30
ø32
ø63.5
33
EA63 F
36
20
MAX 26
72
ø63
ø32
ø3.2
°
99
E A PA R A L L E L - S S I - I C O
R37
ø64
6
20°
61
ø8 / 9.52 / 10g6
max40
ø50h7
63.5
52.4
Nº4 ø5.5
ø8-9.52-10-12-14-15h7
EA58 F
EA63 E
HOW TO MOUNT THE EA63G
1) Fix the antirotation pin on motor flange.
2) Couple the encoder shaft with the motor shaft,
ensuring that the pin is inserted on the cave on the
frontal part of the encoder (mantaining a minimum
distance of 0,5 mm).
3) Fix the encoder shaft by the metal ring.
R.P.M. Max
MAX shaft
load
Shock
Vibrations
Bearings life
Bearings
63F/ G
63F/ G
- 63F/ G
- 63F/ G
- 63F/ G
- 63F/ G
Input voltage
Input current with no
output load
Source and sink
current
6000 c o nt i nuo us
3000 c o nt i nuo us f o r 6 3 G
3000 wi t h I P66
10 N (1 Kp) axial with ø6 shaf t
20 N (2 Kp) radial with ø6 shaf t
100 N (10 Kp) axial
100 N (10 Kp) radial
50 G for 11 msec
Output types
Output
frequency
10G 10 ÷ 2000 Hz
n° 2 ball bearings
Resolution
Stainless steel AISI303
Body material
Aluminium UNI 5076
Input voltage
Housing material
PA 66 reinforced with fiber glass
Enclosure rating
IP54
IP66 optional - 58B/C - 63A/D/E
Storage
temperature
Weight
Input current with no
output load
Source and sink
current
Output types
Monostable time
0°÷ +60°C
Time between
two clock sequences
Frequency range
-15°÷ +70°C
Input voltage
Input current with no
output load
5
2.3
Source and sink
current
ø9.5
foro ø4.2
4.75
set N° 3 fastners
for models -63A/B/C
Ord.Cod.: 94080001
14.5
40 mA for channel
NPN (Negative logic)
NPN Open Collector (Negative logic)
PNP (Positive logic)
PNP Open Collector (Positive logic)
PUSH PULL (Positive logic)
100 KHz output code
F= RPM x Resolution
60
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250 / 500 / 1000 / 2000 / 4000
5Vdc / 8 ÷ 28 Vdc
200 mA
40 mA for channel
SSI (Serial Synchronous Interface)
10 - 25 us
> 35 us
100 KHz - 1 MHz
ICO electrical specifications
350 g
Resolution
Accessories
200 mA
SSI electrical specifications
10 9 revolutions
Shaft material
Operating
temperature
5Vdc / 8 ÷ 28 Vdc
Output types
Output
frequency
Transmission
frequency
AS002IT0705A
Bore diameter (mm)
ø 8 H7- 58F ø 9 H7- 58F ø 10 H7- 58F
ø 12 H7- 58F
ø 14 H7- 58F
ø 15 H7- 58F
Resolution
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250 / 500 / 1000 / 2000 / 4000
360 / 500 / 512 / 720 / 1000 / 1024
5Vdc / 8 ÷ 28 Vdc
200 mA
40 mA for channel con PUSH PULL
20 mA for channel con LINE DRIVER
LINE DRIVER - PUSH PULL
E A PA R A L L E L - S S I - I C O
Shaft diameter (mm)
ø 6 g 6 - 58B
ø 8 g 6 - 58B - 63A/ D/ E
ø 9, 52 g 6 - 63A/ D/ E
ø 10 g 6 - 58B - 63A/ D / E
Singleturn ABSOLUTE ENCODERS
PARALLEL electrical specifications
Mechanical specifications
100 KHz output code
F= RPM x Resolution
60
100 KHz - 1 MHz
21
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA
PARALLEL-SSI
M ETAL ho u s i ng
Singleturn ABSOLUTE ENCODERS
SINGLETURN ABSOLUTE
ENCODER
Absolute singleturn PARALLEL encoder
description
Resolutions are available up to 13 bit and 8.192 ppr. Wide application range thanks to several models and different flange types.
This series assures high reliability even in the most tough industrial applications. It is available with cable connector output and protection
class up to IP66. Both Gray and binary code outputs are available with several electronic types: NPN, NPN OPEN OLLECTOR, PNP and PUSH
PULL.
E A PA R A L L E L - S S I
Absolute singleturn SSI encoder
description
22
This series is designed to satisfy the new serial transmission philosophy of data output. A 13 bit word data is the standard output for these encoders. Meaningful bits are proportionally to the chosen encoder resolution. This type of transmission reduces wiring issues in order to maintain
outstanding device performances. Only a four wire connection is needed: a pair for the position code and the other one for the clock signal.
Both signals are transmitted by differential logic. In order to satisfy all dimensional requirements, a wide and complete range of mechanical
combinations are available.
PARALLEL
encoder ordering code
Full stop to separate special
versions
EA 63
M
512 G 8/28 N
N
L
10
6 MA
X
R
.
XXX
Special version code
numbered from 001 to 999
EA
58
63
90
115
Body dimension
Body dimension
Body dimension
PD 16 poles with 1,5 m standard output cable
PE 32 poles with 1,5 m standard output cable
MA 19 poles MS type connection
Type of flange
mod. EA63
mod. EA58
mod. EA58
mod. EA63
mod. EA63
mod. EA58 / EA63
mod. EA63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 with the exception of EA63G/EA115
Metal housing
Shaft diameter
M
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E -90A
9 ø 9,52g6 mm - 63A/D/E - 90A
10 ø 10g6 mm - 58B/C - 63A/D/E -90A -115A
11 ø 11g6 mm -115A
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
90/180/360/720/1440/2880/225/
450/900/1800/3600
250/500/1000/2000/4000
Bore diameter only for mod. 58F - 63F/G
8
9
10
12
14
15
Please directly contact our offices for pulses availability
Code type
Binary
Gray (Standard)
B
G
Please directly contact our offices for binary offset code (0-XXX).
Input voltage
PNP (positive logic standard)
PNP OPEN COLLECTOR (positive logic standard)
PUSH PULL with short cicruit protection(positive logic standard)
For optional about output types please refer to the absolute output section
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
L Latch
S Strobe (only for binary code)
X To be reported if not used
ZE Automatic zeroing
ZP Push-botton zeroing
Output types
NPN OPEN COLLECTOR (negative logic standard)
ø 9,52H7 mm
Options
5
8 ÷ 28
NPN (negative logic standard)
ø 8H7 mm
N
C
R
U
P
Logic
N Negative
P Positive
Output connections for absolute singleturn
PARALLEL encoder
16 WIRE CABLE
COLOURS
32 WIRE CABLE
COLOURS
0
green
green
A
B/G
1
1
yellow
yellow
B
2
FUNCTION
B/G
bit 1 (LSB)
B/G
bit 2
0
PIN
M19MP
bit 3
B/G
2
blue
blue
C
bit 4
B/G
3
3
brown
brown
D
bit 5
B/G
4
4
pink
pink
E
B/G
5
5
white
white
F
6
gray
G
bit 6
bit 7
B/G
6
bit 8
B/G
7
7
violet
violet
bit 9
B/G
8
8
gray/pink
gray/pink
J
9
9
white/green
white/green
K
bit 10
B/G
10
10
gray
H
bit 11
B / G
brown/green
L
bit 12
B / G
11
11
white/yellow
white/yellow
M
bit13
12
12
yellow/brown
yellow/brown
N
/
LATCH
Singleturn ABSOLUTE ENCODERS
R Radial
A Axial
Body dimension
B / G
/
brown/green
/
/
P
/
/
yellow/gray
R
/
/
/
0 Volt
/
/
black
black
T
U/D
/
red/blue
red/blue
U
+ Vdc
/
red
red
V
ZE
/
/
/
/
E A PA R A L L E L - S S I
Absolute encoder
singleturn
A
S
23
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
SSI
encoder ordering code
Full stop to separate special
versions
Singleturn ABSOLUTE ENCODERS
EA 63
A
M
512 G 8/28 S
X
X
10
6 MC
X
R
Absolute encoder
singleturn
R
A
EA
Body dimension
Body dimension
Body dimension
mod. EA58
mod. EA58
mod. EA63
mod. EA63
mod. EA58 / EA63
mod. EA63
Axial
R.P.M.
Type of flange
mod. EA63
Radial
PC 12 poles with 1,5 m standard output cable
MC Connector MS type 7 poles
HA Connector H type 12 poles
58
63
90
115
Body dimension
3 3000 with IP66
6 6000
A
B
C
D
E
F
G
Enclosure rating
X IP54
S Optional IP66 with the exception of EA63G/EA115
Shaft diameter
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E -90A
9 ø 9,52g6 mm - 63A/D/E - 90A
10 ø 10g6 mm - 58B/C - 63A/D/E -90A -115A
11 ø 11g6 mm -115A
M
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
90/180/360/720/1440/2880/225/
450/900/1800/3600
250/500/1000/2000/4000
Bore diameter only for mod. 58F - 63F/G
8
9
10
12
14
15
Please directly contact our offices for pulses availability
Code type
Binary
Gray (Standard)
B
G
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Please directly contact our offices for binary offset code (0-XXX).
Options
Input voltage
E A PA R A L L E L - S S I
XXX
Special version code
numbered from 001 to 999
Metal housing
24
.
X
ZE
ZP
5
8 ÷ 28
Output types
SSI (Serial Synchronous Interface)
For optional about output types please refer to the absolute output section
S
To be reported if not used
Automatic zeroing
Push-button zeroing
Logic
X To be reported if not used
Output connections
for SSI
12 WIRE CABLE
COLOURS
PIN
M07MP
+ Vdc
red
G
8
0 Volt
black
F
1
5
FUNCTION
PIN
H12
U/D
red/blue
E
Dato +
green
C
2
Dato -
brown
D
10
Clock +
yellow
A
3
Clock -
orange
B
11
ZE
white
/
4
EA63 AM
ø64
20
15
6
58
°
30
30
°
ø58.7
ø31.75h7
ø8/9.52/10g6
R36.75 (ø73.5)
MAX 25
84
SERVOFASTENERS
NOT INCLUDED
ø47.5
MAX 35
EA58 BM
ø64
ø42
SERVOFASTENERS
NOT INCLUDED
ø50h7
ø6/8/9.52/10g6
ø58
R33.65 (ø67.3)
30°
30°
MAX 25
74
60
10 4
8
N°3 M4 prof.6mm
33
Singleturn ABSOLUTE ENCODERS
N°3 M5 prof.6mm
MAX 35
EA58 CM
MAX 25
84
9
20
15
ø6/8/9.52/10g6
30°
30
°
ø58
ø36f6
ø64
ø48
55
MAX 35
EA63 DM
84
20
15
6
MAX 25
58
ø31.75h7
ø8/9.52/10g6
63.5
52.4
Four ø 5.5 bores diameter
E A PA R A L L E L - S S I
N°3 M3 prof.6mm
MAX 35
25
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA63 EM
MAX 25
84
20
63.5
52.4
58
6
N°4 ø5.5
MAX 35
8.5
EA58 FM
72
64
ø63
ø6/8/9.52/10/12/14/15H7
ø60
ø32
MAX 25
61.3
54
7.3
20°
Singleturn ABSOLUTE ENCODERS
ø50h7
ø8/9.52/10g6
15
20
MAX 35
EA58 FM-GM
ø64
7.3
MAX25
61.3
54
“G” fixing type
20
ø60
ø32
ø3.5
ø8/10/12/14/15H7
ESA8
.5
24
E A PA R A L L E L - I S S
36
“F” fixing type
MAX 35
20
EA90 AM
ø90
ø80
ø70
ø60
max 23
78.5
64.5
9.5
N°3 M5x120°
Nº3 M6x120°
ø8/(3/8")/10g6
3
2.5
ø40h7
ø82
ø90
max 35
R50
60°
26
20
4.5
EA115 AM
ø115
71.5
62.5
3
Source and sink
current
Output types
Output
frequency
200 m A
Input voltage
Input current with no
output load
Output types
Monostable time
Time between
two clock sequences
Frequency range
R.P.M. Max
40 mA for channel
NPN (Negative logic)
NPN Open Collector (Negative logic)
PNP (Positive logic)
PNP Open Collector (Positive logic)
PUSH PULL (Positive logic)
200 KHz codice d’uscita
F= RPM x Resolution
60
SSI electrical specifications
Resolution
Hole diameter (mm)
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250 / 500 / 1000 / 2000 / 4000
MAX shaft
load
Shock
Vibrations
Bearings life
Bearings
ø6 g6 - 58B
ø 8 g 6 - 5 8 B - 6 3 A / D/E - 90A
ø 9 , 5 2 ( 3 / 8 ” ) g 6 - 6 3 A/D/E - 90A
ø10 g6 - 58B - 63A/D/E- 90A - 115A
ø11 g6 - 115A
ø 8 / ø 9 / ø 1 0 / ø 1 2 / ø 1 4 /ø15 H 7 58F - 63F/G
6000 continuous
3 0 0 0 c o n t i n u o u s f or 63G
3000 with IP66
10 N (1 Kp) axial with ø6 shaf t
20 N (2 Kp) radial with ø6 shaf t
100 N (10 Kp) axial
100 N (10 Kp) radial
50 G for 11 msec
10G 10 ÷ 2000 Hz
10 9 revolutions
n° 2 ball bearings
Shaft material
Stainless steel AISI303
Body material
Aluminium UNI 9002/5
5Vdc / 8 ÷ 28 Vdc
Housing material
Aluminium UNI 9002/5
200 m A
Enclosure rating
IP54
IP66 optional - 58B/C - 63A/D/E - 90A
SSI (Serial Synchronous Interface)
Operating
temperature
0°÷ +60°C
10 - 25 us
Storage
temperature
-15°÷ +70°C
> 35 us
Weight
3 5 0 g - 5 8 B / C - 6 3 A/D/E/G
750 g - 90A -115A
100 KHz - 1 MHz
Accessories
set N° 3 fastners
for models -63A/B/C -90A
Ord.Cod.: 94080001
14.5
5
ø9.5
Input current with no
output load
5Vdc / 8 ÷ 28 Vdc
Shaft diameter (mm)
bore ø4.2
Input voltage
Mechanical specifications
4.75
Resolution
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250 / 500 / 1000 / 2000 / 4000
AS007IT0705A
PARALLEL electrical specifications
Singleturn ABSOLUTE ENCODERS
N°6 ø6.5x60°
E A PA R A L L E L - S S I
max 35
27
6
ø10/11g6
max 23
ø90
ø100
ø85h7
2.3
27
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAM
PARALLEL-SSI
E A M PA R A L L E L - S S I
Multiturn ABSOLUTE ENCODERS
M U LT I T U R N A B S O L U T E
ENCODER
28
Absolute multiturn PARALLEL encoder
description
This series is designed for application where a very high precision is required, even also on extended linear distances. Resolutions up to 13 bits
on the single turn (8,192 ppr) and 14 bits as number of turns (16,384 turns) are available. Sturdy mechanic parts and several flanges make this
series suitable in such a wide range of applications assuring high performances even in the most tough industrial applications. This series is available with cable or connector output both with Gray or binary code. The PUSH PULL electronic is suitable for all industrial application fields.
Absolute multiturn SSI encoder
description
The absolute multiturn encoder series with SSI output provides data with the same format as previously described for singleturn encoders.
Considering the high data volume in multiturn encoders, the serial data transfer is an efficient solution in order to curb the number of wires and
the SSI standard is a valuable one.
The output data is a 25 bit word and useful bits are proportional to the resolution chosen for the encoder.
This transmission standard efficiently reduces wiring issues maintaining the highest level of performances. Similarly to singleturn encoders,
number of wires for the transmission is 4 (2 for the data and 2 for the clock signal –both are transmitted in differential logic). A wide range of
mechanical parts and flanges designed to satisfy different requirements is available.
PARALLEL
encoder ordering code
Full stop to separate special
versions
EAM 63
P
X
10
X
3 MA
R
.
XXX
Special version code
numbered from 001 to 999
EAM
58
63
Body dimension 90
Body dimension115
Body dimension
PD 16 poles with 1,5 m standard output cable
PE 32 poles with 1,5 m standard output cable
MA 19 poles MS type connector
ME 32 poles MS type connector
Type of flange
mod. EAM63/90/115
mod. EAM58
mod. EAM58
mod. EAM63
mod. EAM63
mod. EAM58/63
mod. EAM63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 with the exception of EAM63G/F - EAM115A
Turns
2/4/8/16/32/64/128/256
512/1024/2048/4096/
8192/16384
Shaft diameter
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E -90A
9 ø 9,52g6 mm - 63A/D/E - 90A
10 ø 10g6 mm - 58B/C - 63A/D/E -90A -115A
11 ø 11g6 mm -115A
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
Please directly contact our offices for pulses availability
Code type
Binary
Gray (Standard)
Multiturn ABSOLUTE ENCODERS
R Radial
A Axial
Body dimension
Bore diameter only for mod. 58F - 63F/G
B
G
8
9
10
12
14
15
Please directly contact our offices for binary offset code (0-XXX).
Input voltage
5
8 ÷ 28
Output types
PUSH PULL with short cicruit protection (positive logic standard)
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
P
For optional about output types please refer to the absolute output section
Logic
Negative
Positive
N
P
L Latch
X To be reported if not used
ZE Electronic zeroing
ZP Push-button zeroing
E A M PA R A L L E L - S S I
Absolute multiturn
encoder
A 4096 / 4096 G 8/28 P
29
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
E A M PA R A L L E L - S S I
Multiturn ABSOLUTE ENCODERS
Connections and colours for
PARALLEL models
16 WIRE CABLE
COLOURS
FUNCTION
bit 1 (LSB)
B/G
bit 2
B/G
bit 3
B/G
B/G
PIN
M32MP
0
0
green
green
A
A
1
yellow
yellow
B
B
2
2
blue
blue
C
C
3
3
brown
brown
D
D
4
4
pink
pink
E
E
5
5
white
white
F
F
6
6
gray
gray
G
G
7
7
violet
violet
H
H
8
8
gray/pink
gray/pink
J
J
9
9
white/green
white/green
K
K
10
10
brown/green
brown/green
L
L
11
11
white/yellow
white/yellow
M
M
12
12
bit 4
B/G
bit 5
B/G
bit 6
B/G
bit 7
B/G
bit 8
B/G
bit 9
B/G
bit 10
B/G
bit 11
B / G
bit 12
B / G
bit 13
B / G
yellow/brown
yellow/brown
N
N
bit 14
B / G13
/
white/gray
P
P
bit 15
B 14/ G14
/
gray/brown
R
R
bit 16
B 15/ G15
white/pink
S
S
bit 17
B 16/ G16
/
/
pink/brown
/
T
bit 18
B 17/ G17
/
white/blue
/
U
13
bit 19
B 18/ G18
/
brown/blue
/
V
bit 20
B 19/ G19
/
white/red
/
W
bit 21
B 20/ G 20
/
brown/red
/
X
bit 22
B / G
/
white/black
/
Y
21
21
22
22
/
brown/black
/
Z
23
23
/
gray/green
/
a
/
yellow/pink
/
d
/
yellow/blue
/
c
/
green/blue
/
b
bit 23
B / G
bit 24
B / G
bit 25
B 24/ G 24
bit 26
B / G
25
bit 27
B 26/ G 26
25
LATCH
/
/
yellow/gray
/
e
ZE
/
pink/green
/
0 Volt
/
/
black
black
T
f
j
U/D
/
red/blue
red/blue
U
g
+ Vdc
/
red
red
V
h
PPR + Turns number
PPR
According to the resolution and the chosen number of turns is possible
to calculate the connections required by the connector or the cable.
From the below table is possible to know the connection number.
EXAMPLE 2:
4096 PPR = 12 connections
N° turn 4096 = 12 connections
Total connections = 24.
2
4
8
16
32
64
90
128
180/225/250
256
360/450/500
From 1 to 13 connections a 16 poles cable or a 19 poles connector
have to be considered.
From 14 to 25 connections a 32 poles cable or a 32 poles connector
have to be considered.
If optional signals are used a cable or a 32 poles connector is suggested.
30
PIN
M19MP
1
Connector or cable
choice
EXAMPLE 1:
256 PPR = 8 connections
N° turns 32 = 5 connections
Total connections = 13.
32 WIRE CABLE
COLOURS
512
720/900/1000
1024
1440/1800/2000
2048
2880/3600/4000
4096
8192
16384
Bit
number
1
2
3
4
5
6
Connections
number
1
2
3
4
5
6
7
7
8
8
9
9
10
10
11
11
12
13
14
12
13
14
SSI
encoder ordering code
Full stop to separate special
versions
EAM 63
5
S
X
X
10
X
3 MC
R
.
XXX
EAM
Special version code
numbered from 001
to 999
58
Body dimension 63
Body dimension 90
Body dimension115
Body dimension
PC 12 poles with 1,5 m standard output cable
MC MS type 7 poles connector
HA H type 12 poles connector
Type of flange
mod. EAM63/90/115
mod. EAM58
mod. EAM58
mod. EAM63
mod. EAM63
mod. EAM58/63
mod. EAM63
A
B
C
D
E
F
G
R.P.M.
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 with the exception of EAM63G/F
Turns
2/4/8/16/32/64/128/256
512/1024/2048/4096/
8192*/16384*
Shaft diameter
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E -90A
9 ø 9,52g6 mm - 63A/D/E - 90A
10 ø 10g6 mm - 58B/C - 63A/D/E -90A -115A
11 ø 11g6 mm -115A
*Please directly contact our offices for more than 25 bit coding availability
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096/8192
Bore diameter only for mod. 58F - 63F/G
Code type
Binary
Gray (Standard)
8
9
10
12
14
15
B
G
Input voltage
5
8 ÷ 28
Output types
SSI (Serial Synchronous Interface)
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
S
For optional about output types please refer to the absolute output section
Logic
To be reported if not used
X
X To be reported if not used
ZE Electronic zeroing
ZP Push-button zeroing
Output connections
for SSI
FUNCTION
+ Vdc
Multiturn ABSOLUTE ENCODERS
R Radial
A Axial
12 WIRE CABLE
COLOURS
PIN
M07MP
PIN
H12
red
G
8
0 Volt
black
F
1
5
U/D
red/blue
E
Data +
green
C
2
Data -
brown
D
10
Clock +
yellow
A
3
Clock -
orange
B
11
ZE
white
/
4
E A M PA R A L L E L - S S I
Absolute multiturn
encoder
A 4096 / 4096 G
31
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAM63 A
MAX 25
97
SERVOFASTENERS
NOT INCLUDED
ø8/9.52/10g6
30°
30°
N°3 M5 prof. 6mm
MAX 35
EAM58 B
MAX 25
87
10 4
SERVOFASTENERS
NOT INCLUDED
73
ø50
ø58
30°
N°3 M4 prof. 6mm
ø6/8/9.52/10g6
8
R33.65 (ø67.3)
ø64
ø42
30°
Multiturn ABSOLUTE ENCODERS
71
6
15
ø58.7
R36.75 (ø73.5)
ø47.5
20
ø31.75h7
ø64
MAX 35
EAM58 C
15
ø64
ø36
ø6/8/9.52/10g6
30°
ø58
ø48
N°3 M3 prof. 6mm
32
MAX 25
97
20
30°
E A M PA R A L L E L - S S I
33
9
68
EAM63 D
MAX 25
97
20
71
6
15
ø31.75h7
ø8/9.52/10g6
63.5
52.4
MAX 35
EAM63 E
MAX 25
97
6
20
71
15
ø50h7
ø8/9.52/10g6
63.5
52.4
Multiturn ABSOLUTE ENCODERS
Four ø 5.5 bores diameter
Four ø 5.5 bores diameter
MAX 35
74.3
ø3.2
57
ø8/9.52/10/12/14/15H7
7.3 10
ø60
ø32
20°
72
ø63
ø32
E A M PA R A L L E L - S S I
8.5
EAM58 F
MAX 35
33
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAM63 F - EAM63 G
MAX 25
74.3
ø64
7.3 10
57
24
.5
ESA8
20
ø60
ø32
ø3.5
ø8/10/12/14/15H7
“G” fixing type
36
20
MAX 35
EAM90 A
ø90
ø80
MAX 25
97
N°3 M5 for ø70
N°3 M6 for ø60
20
4.59.5
63
ø40h7
ø8/9.52/10g6
15
R50 (ø100)
Multiturn ABSOLUTE ENCODERS
“F” fixing type
EAM115 A
ø115
ø85h7
N°6 ø6 bores
diameter
34
MAX 25
97
27
15
ø100
36
61
ø10/11g6
E A M PA R A L L E L - S S I
MAX 35
MAX 35
HOW TO MOUNT THE EAM63G
Bore diameter (mm)
R.P.M. Max
MAX shaft
load
Shock
Vibrations
Bearings life
Bearings
ø 8 H7- 58F ø 9 H7- 58F ø 10 H7- 58F
ø 12 H7- 58F
ø 14 H7- 58F
ø 15 H7- 58F
63F/ G
63F/ G
- 63F/ G
- 63F/ G
- 63F/ G
- 63F/ G
6000 c o nt i nuo us
3000 c o nt i nuo us f o r 6 3 G
3000 wi t h I P66
10 N (1 Kp) axial with ø6 shaf t
20 N (2 Kp) radial with ø6 shaf t
100 N (10 Kp) axial
100 N (10 Kp) radial
50 G for 11 msec
10G 10 ÷ 2000 Hz
10 9 revolutions
n° 2 ball bearings
Shaft material
Stainless steel AISI303
Body material
Aluminium UNI 9002/5 - (D11S)
Housing material
Flange material
Weight
Aluminium alloy 6060
Aluminium UNI 9002/5 (D11S)
350 g - 58B/ C - 63A/ D / E / G
750 g - 90A - 115A
Environmental specifications
Enclosure rating
Operating
temperature
Input current with no
output load
IP54
IP66 optional -58B/C -63A/D/E -90A
0°÷ +60°C
-15°÷ +70°C
PARALLEL electrical specifications
Turns
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
16384
PPR
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
Input voltage
Input current with no
output load
Source and sink
current
Output types
8 ÷ 28 Vdc
100 mA
20 mA for channel
PUSH PULL (Positive logic)
200 KHz output code
RPM x Resolution
60
Output
frequency
F=
Accuracy
+/- 1/2 LSB
SSI electrical specifications
Turns
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
16384
PPR
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
Input voltage
Input current with no
output load
Output types
Monostable time
Time between
two clock sequences
Frequency range
Accuracy
Multiturn ABSOLUTE ENCODERS
Shaft diameter (mm)
ø 6 g 6 - 58B
ø 8 g 6 - 58B - 63A/ D/ E - 9 0 A
ø 9, 52 g 6 - 63A/ D/ E - 9 0 A
ø 10 g 6 - 58B - 63A/ D/ E - 9 0 A - 1 1 A
ø 11 g 6 - 11A
1) Couple the encoder shaft with the motor shaft.
2) Fix the spring at the motor flanges without screwing it.
3) Fix the encoder shaft by the metal gear.
4) Block the spring.
5 Vdc / 8 ÷ 28 Vdc
100 mA
SSI (Serial Synchronous Interface)
10 - 25 us
AS003IT0705A
Mechanical specifications
HOW TO MOUNT THE EAM63F
E A M PA R A L L E L - S S I
1) Fix the antirotation pin on the motor flange.
2) Couple the encoder shaft with the motor shaft,
ensuring that the pin is inserted on the frontal part of the
encoder (mainteining a minimum distance of 0,5 mm).
3) Fix the encoder shaft by the metal ring.
> 35 us
100 KHz - 1 MHz
+/- 1/2 LSB
35
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAM
PROFIBUS
M U LT I T U R N A B S O L U T E
ENCODER
Presentation
Multiturn ABSOLUTE ENCODERS
The Eltra multiturn Profibus encoder series (Identification Number
0x0599) is complying to the Profibus DP standard as described on the
European Standard EN 50170 Volume 2. Particularly, Eltra Profibus
encoders are according to “PROFIBUS Profile for Encoders, Order
No. 3.062”. The Profibus DP interface maintains the same maximum
resolution and characteristics (8.192 ppr and 4.096 revolutions) of the
stand-alone version and adds the plus of the Profibus DP network.
By the Profibus DP network is possible:
During the periodic data exchange, getting the indication of the angular position from the encoder.
During the set up, setting the resolution as number f positions within
the single turn and .as number of turns.
During the set up, changing the default increase direction count.
To perform the PRESET operation (Set the encoder to read a specific
position).
Reading the diagnostic operating mode.
Getting info about the code supplied by the device.
Directly from the device it is possible :
To display the ON/OFF status.
To display the device activity on the bus.
Setting the device address
If requested, inserting in the bus the termination resistance.
Inverting the counting direction.
EAM PROFIBUS
Hardware installation device
Installing the Eltra Profibus encoder in a network requires the execution of the standard steps necessary for configuring any Profibus DP slave. The
sequence of steps is as follows:
1 Commissioning the slave on the master (see corresponding paragraph).
2 Wiring the encoder into the Profibus network using or not terminations depending on the physical position the devices has in the bus
3 Directly set the address (which must be unique in the network and the same as the one chosen in point 1) for the slave.
4 Preparing the master side application/s and setting up the Profibus network.
On the back cover of the encoder (see picture) there is a led inspection window.
The device operating status can be controlled by the two led through the window. The green one shows the power presence and must be permanently
switched on.
The red led switches off only during the periodic data exchange between the Profibus master and the encoder.
In the section plan alongside the 2 dip-switches of termination line and the 8 dip switches of device address are shown. In the particular shown
configuration, the 2 termination line contacts are set to OFF so the termination of the bus in not expected to occur on the encoder.
Only seven out of the eight available dip-switches are used to address the slave because the maximum number of devices that can be connected to
a Profibus network is 126. For addressing the device, only the first seven dip switches out of the eight available are used.
The contact number 8 is the LSB while the number 2 is the MSB.
The eighth contact (1) is used to invert the code.
36
Connection to the
network
For connecting Profibus encoders to the network, cables within the
device can be accessed by the three skintops (in any event only two
of them can be used).
Multiturn ABSOLUTE ENCODERS
Usually, a skintop is used for the connection to the bus, a second one
to continue the network and the last one to eventually supply the power
to the encoder (if the power supply is not available by the network in
addition to the RS-485 twin wire).
Te r m i n a l b l o c k
access
Please NOTE:
To set and configure the slave into the Profibus DP master (‘commissioning’ step) it is necessary to use the “Exx_0599.gsd” file delivered
with the encoder. This file can eventually be downloaded from our
following web site: www.eltra.it.
Cable connections
+V
SUPPLY VOLTAGE
0V
GROUND
A
PROFIBUS DP LINE OUT (Green)
B
PROFIBUS DP LINE OUT (Red)
A
PROFIBUS DP LINE IN (Green)
B
PROFIBUS DP LINE IN (Red)
EAM PROFIBUS
To access the terminal block, unscrew the two screws on the rear plug
and release the rear case from the main one by sliding it out from the
sunken connector. Then, connect wires according to the diagram on
the connector and as reported on the table on the right.
37
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
Network
specifications
LED
Input voltage
LED,
NORMALLY
TURN ON
Active on network
LED,
NORMALLY
TURN OFF
Usually, an A type cable is used to wire a DP/FMS network.
This cable has to have the following characteristics:
Parameter
Cable type A
Characteristics in Ω
Multiturn ABSOLUTE ENCODERS
Operating capacity (pF/m)
135 ... 165 at a frequency of (3...20 Mhz)
< 30
Loop resistance (Ω/km)
< = 110
Core diameter (mm)
> 0.64*)
Core cross-section (mm2)
> 0.34*)
This cable allows an optimum network utilization. In fact, it is possible to
reach the maximum communication speed allowed (12 MBaud). However, there are some limitations due to the maximum physical dimensions
of a bus segment as follows:
DIP - SWITCHES
setting
Baud rate (kbit/s) Range/Segment
Below it is reported an example of the standard position of address and termination dip switches as well as settings for closing
a Profibus line.
9.6
1200 m
19.2
1200 m
93.75
1200 m
187.5
1000 m
500
400 m
1500
200 m
12000
100 m
EAM PROFIBUS
Finally, main physical and topographical specifications of a Profibus
network are as follows:
38
STANDARD
SETTING
In this example the device address is set
equal to 1001101 from bit number 2 to
bit number 8 corresponding to HEX 77.
Meanwhile, the first bit represents the
inversion of the code (activated in this
case).
LINE
OPEN
LINE
CLOSE
Specifications
Maximum number of station
partecipating in the excahnge of
user data
DP: 126 (address from 0...125)
FMS: 127 (address from 0...126)
Maximum number of stations per
segment including repeaters
32
Available data transfer rates
in kbit/s
Max. number of segments
in series
9.6, 19.2, 45.45, 93.75, 187.5,
500, 1500, 3000, 6000, 12000
According to EN 50170, a maximum of
4 repeaters are allowed between any two
stations. Dependent on the repeater type
and manufacturer, more than 4 repeaters
are allowed in some cases. Refer to the
manufacturer’s technical specification for
details.
PROFIB U S
encod er ord eri ng code
Full stop to separate special
versions
EAM 63
X
10
X
X
3
P3
R
. XXX
EAM
Special version code
numbered from 001
to 999
58
Body dimension 63
Body dimension 90
Body dimension115
Body dimension
R Radial
P2
P3
Type of flange
mod. EAM58
mod. EAM58
mod. EAM63
mod. EAM63
mod. EAM58/63
mod. EAM63
A
B
C
D
E
F
G
3 3000 with IP66
6 6000
Enclosure rating
X IP54
S Optional IP66 with the exception of EAM63G/F - EAM115A
Shaft diameter
Turns
6 ø 6g6 mm - 58B
8 ø 8g6 mm - 58B - 63A/D/E -90A
9 ø 9,52g6 mm - 63A/D/E - 90A
10 ø 10g6 mm - 58B/C - 63A/D/E -90A -115A
11 ø 11g6 mm -115A
2/4/8/16/32/64/128/256
512/1024/2048/4096/8192
Resolution
2/4/8/16/32/64/128/256/512
1024/2048/4096
Please directly contact our offices for pulses availability
Bore diameter only for mod. 58F - 63F/G
Code type
Binary
8
9
10
12
14
15
B
Input voltage
12 ÷ 28
Output types
PROFIBUS
F
For optional about output types please refer to the absolute output section
Logic
To be reported if not used
Environmental specifications
Enclosure rating
Operating
temperature
Storage
temperature
Resolution
Input voltage
Input current with no
output load
Electronic of
Bus
Output
frequency
Acuracy
Bus
frequency
X
ø 8H7 mm
ø 9,52H7 mm
ø 10H7mm
ø 12H7 mm
ø 14H7 mm
ø 15H7 mm
Options
X
To be reported if not used
Mechanical specifications
IP54
IP66 optional -58B/C -63A/D/E -90A
Shaft diameter (mm)
0°÷ +60°C
-15°÷ +70°C
Electrical specifications
Turns
Three skintops
R.P.M.
Bore diameter (mm)
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
512 / 1024 / 2048 / 4096 / 8192
R.P.M. Max
Shock
12 ÷ 28 Vdc
Vibrations
300 m A
Bearings life
LINE DRIVER (RS485)
Bearings
Shaft material
100 KHz output code
+/- 1/2 LSB
12 Mbaud
Multiturn ABSOLUTE ENCODERS
mod. EAM63/90/115
Two skintops
F= RPM x Resolution
60
Body material
Housing material
Flange material
Weight
ø6 g6 - 58B
ø8 g6 - 58B - 63A/D/E - 90A
ø9,52 (3/8”) g6 - 63A/D/E - 90A
ø10 g6 - 58B/C - 63A/D/E - 90A - 115A
ø11 g6 - 115A
ø8 H7- 58F - 63F/G
ø9 H7- 58F - 63F/G
ø 1 0 H 7 - 5 8 F - 6 3 F /G
ø 1 2 H 7 - 5 8 F - 6 3 F /G
ø 1 4 H 7 - 5 8 F - 6 3 F /G
ø 1 5 H 7 - 5 8 F - 6 3 F /G
6000 continuous
3 0 0 0 c o n t i n u o u s f or 63G/F
3000 with IP66
50 G for 11 msec
10G 10 ÷ 2000 Hz
10 9 revolutions
n° 2 ball bearings
Stainless steel AISI303
Aluminium UNI 9002/5 - (D11S)
EAM PROFIBUS
Absolute multiturn
encoder
A 4096 / 4096 B 12/28 F
Aluminium alloy 6060
Aluminium UNI 9002/5 (D11S)
8 0 0 g - 5 8 B / C - 6 3 A/D/E/F /G
1000 g - 90A -115A
39
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAM63 A
6
20
15
70.5
ø58.7
ø31.75h7
ø8/9.52/10g6
30°
30°
26.5
96.5
SERVOFASTENERS
NOT INCLUDED
R36.75 (ø73.5)
ø64
ø47.5
EAM58 B
64
42
SERVOFASTENERS
NOT INCLUDED
10 4
86.5
72.5
26.5
ø58
ø50h7
ø6/8/9.52/10g6
R 33.65
30°
8
30°
Multiturn ABSOLUTE ENCODERS
N°3 M5
N°3M4
33
EAM58 C
20
15
9
96.5
67.5
26.5
ø6/8/9.52/10g6
30°
30°
ø58
ø36f6
ø64
ø48
EAM63D - EAM63 E
63.5
52.4
63.5
52.4
20
15
ø31.75h7
ø8/9.52/10g6
EAM PROFIBUS
N°3 M3
ø31.75h7
ø50h7
N°4 ø5.5
“D” flange model
40
N°4 ø5.5
“E” flange model
6
96.5
70.5
26.5
EAM58 F
7.3 10
73.8
56.5
26.5
20°
ø60
ø32
ø8/9.52/10/12/14/15H7
8.5
72
ø63
ø3.2
20
EAM63 F-G
73.8
56.5
20
ø60
ø32
ø3.5
36
26.5
Multiturn ABSOLUTE ENCODERS
“G” fixing type
ø8/9.52/10/12/14/15H7
7.3 10
ESA8
24
.5
ø64
“F” fixing type
20
EAM90 A
ø90
ø80
N°3 M5 for ø70
N°3 M6 for ø60
4.59.5
96.5
62.5
26.5
EAM115 A
96.5
ø115
ø100
36
26.5
60.5
ø85h7
ø10/11g6
27
15
EAM PROFIBUS
AS004IT0705A
ø40h7
ø8/9.52/10g6
R50 (ø100)
20
15
N°6 ø6 bores
diameter
41
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© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EA40 T/U
ABSOLUTE SINGLETURN ENCODER
FOR TOOL CHANGE APPLICATIONS
Absolute Encoder
Ø40 T/U absolute encoders are specifically designed to be directly mounted on machine tools and they are suitable for being
mounted on turrets for tool change (8 or 12 positions). The timing
between encoder and turret can be overviewed by a led mounted
on the enclosure. According to that it is possible to visualise the
position of the first tool making easier and quicker the mounting
for the operator.
Special ABSOLUTE ENCODERS
Main characteristics:
Easy mechanical mounting.
Several output types available.
8 and 12 position turn configuration.
IP66 sealing.
Ordering code
Full stop to separate special
versions
EA 40
Singleturn absolute
encoder series
T
12
B 8/28 R
P
6
3
S
P
R
EA
R Radial
40
P
Cable output (standard length 0,5 m)
Type of flange
mod. EA40T
mod. EA40U
R.P.M.
T
U
3 3000 max
Enclosure rating
Positions
S Standard IP66
8
12
Shaft diameter
6
Code type
EA40 T/U
XXX
Special version code numbered from 001 to 999
Body dimension
42
.
Binary
B
Logic
N Negative
P Positive
Input voltage
5
8 ÷ 28
ø 6 mm
Output types
N
C
R
U
NPN
NPN OPEN COLLECTOR
PNP
PNP
40 T
Electrical specifications
Input voltage
Input current with no
output load
ø38
ø6g6
ø42
Positions
6 10
R26.5 (ø53)
44
ø24h7
EA
Source and sink
current
Output types
3
23
esa15
8 / 12
5 V d c / 8 ÷ 2 8 V dc
100 mA
40 mA for channel
NPN / NPN OPEN COLLECTOR /
PNP / PNP OPEN COLLECTOR
3
Output
frequency
100 KHz output code
Mechanical specifications
Enclosure rating
40.5
10
23.5
M3
N°3x120°
MAX shaft
load
5N (0.5 Kp) axial
5N (0.5 Kp) radial
Shock
50 G for 11 msec
Vibrations
Bearings life
Bearings
esa15
3
3000 continuous
10G 10 ÷ 2000 Hz
ø44
ø42
ø6g6
R30(ø60)
ø50
R.P.M. Max
2 10
48.5
I P 6 6 st a n d a r d
10 9 revolutions
n° 2 ball bearings
3
Shaft material
Stainless steel AISI303
Body material
Aluminium D11S - UNI 9002/5
ø35
Housing material
Wire
colour
Turn
position
1
2
3
4
5
6
7
8
9
10
11
12
WHITE YELLOW GREEN VIOLET
bit1
bit2
bit3
bit4
•
•
•
•
•
•
BLACK BROWN
BLUE
Strobe
0 Volt
+Vdc
0°÷ +60°C
Storage
temperature
-15°÷ +70°C
Weight
100 g
bit1
bit2
•
•
•
•
•
•
•
Parity
•
•
•
•
•
RED
Operating
temperature
EA40 T/U
Signal configurations
PA66 reinforced with fiber glass
•
•
bit3
bit4
•
•
•
•
•
•
•
parity
strobe
•
Special ABSOLUTE ENCODERS
U
ø25h7
EA 40
ø6 g6
AS005IT0705A
Shaft diameter (mm)
0°
60° 120° 180° 240° 300° 360°
43
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
EAX80 A/D
A B SO L U T E
E X P O L SI O N PR O O F EN C O D E R
Absolute Encoder
Explosionproof encoders for applications within explosive and
hazardous areas.
Up to 8.192 ppr resolution (13 bit)
Several output types available. Up to 28 Vdc input voltage.
Special ABSOLUTE ENCODERS
Output cable
Several flanges available
Up to 3.000 rpm speed rotation
Up to IP64 sealing
EN 50.014 / EN 50.018
CESI certificate number: CESI 04 ATEX 082
Ordering code
Full stop to separate special
versions
EAX 80
A 512 G
5
N
N
X
10
X
P
3
R
encoder
EAX
Body dimension
Special version code numbered from 001 to 999
80
Type of flange
R Radial
A
mod.EAX80D D
mod.EAX80A
P
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 /
1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250 / 500 / 1000 / 2000 / 4000
Cable output (standard length 0,5 m)
R.P.M.
3 3000
Enclosure rating
X standard IP64
Please directly contact our offices for pulses availability
Shaft diameter
Code type
Binary
EAX80 A/D
XXX
Absolute explosionproof
Resolution
gray (standard)
10 ø 10 g6 mm
B
G
Options
Please directly contact our offices for binary offset code (0-XXX).
L
S
X
Input voltage
5
8 ÷ 28
(Negative logic) NPN OPEN COLLECTOR
(Positive logic) PNP
(Positive logic) PNP OPEN COLLECTOR
(Serial Synchronous Interface) SSI
For optional about output types please refer to the absolute output section
Latch
Strobe (only for binary code)
With SSI output
Logic
Output types
(Negative logic) NPN
(with short circuit protection - Positive logic) PUSH PULL
44
.
N
C
R
U
P
S
N
P
X
Negative
Positive
With SSI output
EAX 80
A
Electrical specifications
ø72
0
40h7 -0.025
-0.005
10g6 -0.014
Resolution
n°3 M6X10
20 5
3
Input voltage
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 /
1024 / 2048 / 4096 / 8192
90 / 180 / 360 / 720 / 1440 / 2880
225 / 450 / 900 / 1800 / 3600
250/500/1000/2000/4000
5Vdc / 8 ÷ 28 Vdc
3
Input current with no
output load
106
Source and sink
current
Output types
32.5
Output
frequency
ø80
ø60
100 KHz
F=
RPM x Resolution
60
ø10 g6
26.5
50 G for 11 msec
Vibrations
10G 10 ÷ 2000 Hz
MAX shaft
load
200 N (0.5 Kp) axial
200 N (0.5 Kp) radial
30°
R45
Bearings life
Bearings
D
Shaft material
Housing material
10 9 revolutions
n° 2 ball bearings
Stainless steel AISI303
Aluminium D11S - UNI 9002/5
0
-0.025
10g6 -0.005
-0.014
15
n°4 ø5.5
37
Operating
temperature
0°÷ +60°C
Storage
temperature
-15°÷ +70°C
Weight
Special ABSOLUTE ENCODERS
3000
1200 g
Explosionproof encoder EExdllC T6
106
AS006IT0705A
30°
Shaft diameter (mm)
Shock
40h7
NPN / NPN OPEN COLLECTOR /
PNP / PNP OPEN COLLECTOR/
PUSH PULL / SSI
Mechanical specifications
R.P.M. Max
EAX 80
50 mA for channel
EN 50.014 / EN 50.018
CESI certification number: CESI 04 ATEX 082
1/2" Gas
EExdllC T6
EEx:
ø105
Electrical system for explosive and hazardous areas.
80x80
65x65
d:
II:
Expolsionproof housing.
C:
Type of protection based on the special interstice
designed to have the maximum security on the explosionproof encoder (MESG) C=maximum security.
T6:
Maximum temperature reached by the encoder surface: 85° C.
Electrical system which can operate in hazardous
areas except for the mines where “grisou” gas is
present.
EAX80 A/D
25.5
100 mA
45
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
PRECISION ELASTIC
COUPLING
Ordering code
Special ABSOLUTE ENCODERS
Elastic Couplings
A
6 / 8
G
Coupling size
(see table)
(see table)
(see table)
(see table)
16
20
25
30
Shaft dowel fixing
A
ø bore “d1”
ø6
NOTE: Elastic Coupling can be supplied with different coupling diameters. Eg: d1=8mm, d2=10mm. In this case the identification code
should be: G25A8/10.
ø 9.52 (3/8”)
ø 10
6
8
9
10
ø bore “d2”
ø6
ø8
ø 9.52 (3/8”)
ø 10
NOTE: if d1 is equal to d2 that is not necessary
6
8
9
10
Construction data and specifications
Type of material:
ALUMINIUM
Standard
Couplings
De
NOTE: for non standard (d1-d2)
please contact our offices.
G 13 A 4
ø 13.7
L
22
+0.1
- 0.1
G 20 A 6
ø 20
20
+0.1
- 0.1
G 25 A 8
ø 25
25
+0.1
- 0.1
+0.1
- 0.1
ø 25
G 25 A 10
ø 25
G 30 A 10
ø 25
25
25
30
+0.1
- 0.1
+0.1
- 0.1
d1 = d2
A
B
M
E
F
Twisting
moment
8
M3
7
6
0.25 Nm
ø 4H7
+0.012
0
6
ø 6H7
6
8
M3
7
6
0.25 Nm
ø 8H7
+0.012
0
+0.015
0
7
11
M4
8
9
0.4 Nm
ø 9.52H7
+0.015
0
7
11
M4
8
9
0.4 Nm
ø 10H7
+0.015
0
7
11
M4
8
9
0.4 Nm
ø 10H7
+0.015
0
8
14
M4
9
12
0.4 Nm
E
F
NOTE FOR THE INSTALLER: it is suggested to respect quotes inserting shaft on the coupling.
Couplings dimensions
d2
d1
L
De
ELASTIC COUPLINGS
Precision elastic coupling
25
ø8
G 25 A 9
90
A
46
G
ELTRA elastic precision couplings are essential parts for the transmission of rotational motion to the encoder shaft. Couplings are designed
in aluminium alloy (type D11S A.A 2011) and are composed by a
cylindrical body on which there is an helicoidal groove.
Main characteristics are:
- torsional rigidity;
- ability to support slight shaft misadjustments;
- ability to absorbe small axial shift of the shaft.
ELTRA elastic couplings have also a perfect balancing of the rotating
body. They don’t have critical points subjects to breakage and are
completely frictionless. Moreover, they perfectly transmit the rotation
motion, even in case of axial misadjustment and misalignment. Our
coupling do not require any type of maintenance. The internal drain
allows the coupling between the shafts from a minimum of 0.5mm to a
maximum of 6.12mm (note “F” quota).
B
A
°
M
E
Construction data and specifications
Ordering
Code
De
GS 02A 6
ø 19.1
GS 10A 8
L
ø 19.1
22
+0.1
- 0.1
d1 = d2
A
B
M
E
F
Twisting
moment
ø 6H7
+0.012
0
M3
6.3
0.9 Nm
22
+0.1
- 0.1
ø 8H7
M3
6.3
0.9 Nm
ø 10H7
+0.012
0
+0.012
0
M3
6.3
0.9 Nm
GS 16A 10
ø 19.1
22
+0.1
- 0.1
GS 01A 8
ø 19.1
28
+0.1
- 0.1
ø 8
+0.012
0
M3
8
0.35 Nm
ø 10H7
M3
8
0.35 Nm
ø 10H7
+0.012
0
+0.012
0
M4
12.6
01.4 Nm
ø 12H7
+0.012
0
M4
12.6
1.4 Nm
ø 6H7
+0.012
0
M3
10
3 Nm
M3
10
3 Nm
M3
10
3 Nm
GS 11A 10
ø 19.1
28
+0.1
- 0.1
GS 15A 10
ø 19.1
47
GS 23A 12
ø 19.1
47
+0.1
- 0.1
+0.1
- 0.1
GS 29A 6
ø 25
32
+0.1
- 0.1
ø 8H7
+0.012
0
ø 10H7
+0.012
0
GS 24A 8
ø 25
32
+0.1
- 0.1
GS 25A 10
ø 25
32
+0.1
- 0.1
E
E
L
E
d2
d1
D
d2
D
d1
L
E
SV009IT0305A
E
M
d2
D
d1
L
ELASTIC COUPLINGS
Eltra also produces a special coupling series designed especially for critic and heavy uses. On the table below are shown some special couplings available on stock.
Different couplings available only on request.
Special ABSOLUTE ENCODERS
NOTE FOR THE INSTALLER: For a proper installation is suggested to insert shaft on the coupling respecting quotes.
E
47
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
ABSOLUTE ENCODER
CONNECTORS
Standard connectors for absolute encoders
M07MP
M 07FV
ø26
32.5
24.6
24.6
32.5
G
D
G
E
C
C
D
H12FV
ø26
25
19.8
1
19.8
F
B
B
H12MP
25
Special ABSOLUTE ENCODERS
A
A
F
E
9
8
8
2 10 12
7
3
6
11
4
6
1
3
11
5
5
M19MP
9
7 12 10 2
4
M 19FV
ø26
28.6
48
23
28.6
B A M
C P N L
D R V U K
E S T J
F G H
M A B
L N P C
Κ U V R D
J T S E
H G F
M 32FV
M32MP
ø33
34
26.7
T A
B
e U V C
P d
D
W
f
g
N c j
X E
h
Y F
M b
a Z
L
G
K J H
S
26.7
B
34
OUTPUT CONNECTORS
23
A T
S
C V U e R
D W
d P
f
g j c
E X
N
h
b M
F Y
Z a
G
L
H J K
R
P r e c a uti ons agai n st el ectro s tatic dichar ges
Be sure the metallic connector is connected to the ground through
a ring fixed to the screw of the connector itself. (Fig. 1)
Ground connect to the shield and the connector case.
(Fig. 2)
Fig. 1
Fig. 2
Ensure a ground connection to the cable shield avoiding to connect it to the power ground.
POLES
N°
Keep the encoder cable (signal cable) to a proper distance from
the power ones.
TYPE
CEI MARK
IEC MARK
CEI 20-22 II
SEMIRIGID
UL-CSA
BRAID
FLEXABLE
UL-CSA
FOIL
SEMIRIGID
BRAID
SEMIRIGID
CEI 20-22 II
FOIL
SEMIRIGID
CEI 20-22 II
BRAID
SEMIRIGID
BRAID
FLEXABLE
IEC 60332-1
FOIL
SEMIRIGID
IEC 60332.3
BRAID
SEMIRIGID
5
IEC 60332-1
CEI 20-22 II
Spread the cable avoiding spirals.
8
News
SHIELD
FOIL
IEC 60332-1
Choose the cable’s length according to installation requirements.
UL MARK
IEC 60332.3
IEC 60332-1
CEI 20-22 II
UL-CSA
Cable extensions and connectors could be designed on demand.
Testing on 100% of the production.
Antivibration wiring system.
10
CEI 20-22 II
BRAID
SEMIRIGID
12
CEI 20-22 II
FOIL
SEMIRIGID
16
CEI 20-22 II
FOIL
SEMIRIGID
32
CEI 20-22 II
FOIL
SEMIRIGID
Contact us for further information.
SV011IT0305A
Cables availability
OUTPUT CONNECTORS
C a b l e p roper use
Special ABSOLUTE ENCODERS
For a better protection of the electronics against electrostatic discharges connect the metallic connector case to ground.
NOTE: Please, directly contact our offices for non-standard cables
availability
49
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
OUTPUT CONFIGURATIONS
NPN and NPN OPEN COLLECTOR electronic
It is composed only by an NPN transistor and a pullup resistor used to match the output voltage to the
power supply when the transistor is quiscent. From the
electrical point of view it is similar to TTL type logic
and so it is considered compatible. If used correctly, it
shows low saturation levels at 0 Vdc and close to 0 at
the positive. It is proportionally influenced by the cable
length, pulses frequency and by the load.
Please consider these specs for a proper use. The open
collector variant is different for the lack of the pull-up
resistor, freeing in such way the transistor collector
from the tie of the encoder power supply allowing to
obtain signals with different voltage.
NPN OPEN COLLECTOR
Power
supply
Output
signal
R load
NPN
GND
ENCODER
RECEIVER
NPN
Power
supply
Special ABSOLUTE ENCODERS
Power supply
R load
Power supply
Output
signal
LOAD
NPN
GND
ENCODER
PNP and PNP OPEN COLLECTOR electronic
Main characteristics and limitations are the same as
for NPN electronics. Main difference is the transistor,
which is of PNP type and is constrained to the positive.
The resitor, if present, is a pull-down one. Therefore, it
is connected between the output and zero Vdc.
RECEIVER
PNP OPEN COLLECTOR
Power
supply
PNP
Power supply
Output
signal
R load
OUTPUT CONFIGURATIONS
GND
ENCODER
PNP
Power
supply
PNP
Power supply
Output
signal
LOAD
R load
ENCODER
50
RECEIVER
GND
RECEIVER
PUSH-PULL
PUSH-PULL electronic
Power
supply
R load
Output
signal
LOAD
PNP
GND
ENCODER
RECEIVER
RS 422
output
R load
output
GND
ENCODER
RECEIVER
PROTECTIONS
Protection for output stages
Power
supply
NPN
PTC
Power supply
Output
signal
LOAD
+°C
PNP
GND
ENCODER
RECEIVER
Power
supply
Power supply
output
output
R load
GND
ENCODER
LINE DRIVER is used when operating enviroments are particulary
exposed to electrical disturbances or when the encoder is quite
far from the receiver system. Data trasmission and receiving work
on two complementary channels so disturbances are limited
(they usually come from other cables or close machinery). These
interferences are known as «common way disturbances» as their
generation is due to a common point: the system mass.
Instead, in LINE-DRIVER transmetted and received signals
work in «differential» way. In other words, it works basing the
communication on voltage differences between complementary
channels. Therefore it is not effective to common way
disturbances. This type of transmission is used in 5 Vdc systems
and it is also known as RS422 compatible. It is available with
power supplies up to 24 Vdc.
Two different kind of electronic protection against short circuits
might be used: the passive one (using fuses, no linear resistors,
etc.) and active one (using transistors). Eltra’s encoders can be
equipped with both type of protection against short circuits.
Passive protection
Passive solution is the cheapest one. It is used to avoid
accidental short circuits, which rarely happens. The component
which carries out the protection is called PTC. It is a resistor that,
if crossed by a voltage exceeding the supposed one, increases
its resistance to limit electricity exceedance. Limitations of
this kind of protection concern the low reacting speed, which
may progressively stress the components under protection.
Therefore, this protection is effective against a limited number of
short circuits and it is available only for NPN, PNP, and PUSHPULL electronics.
Active protection
This solution is based on a circuit integrated in the electronic
output which costantly controls the temperature reached by the
element to be protected. In this way, protection is very effective
and the reacting speed very high. Moreover, it ensures a constant
protection against repetitive and permanent short circuits, that is
why is strongly suggested for heavy usages. It is available only for
LINE-DRIVER and PUSH-PULL electronics.
SV010IT0305A
Power supply
Special ABSOLUTE ENCODERS
RS 422 electronic
Power
supply
+°C
Electronic featuring high performances. NPN or PNP major
limitations are caused by the resistor, which works with a much
higher impedance than a transistor. To overcome this issue,
push-pull electronic uses a complementary transistor, so the
impedance is lower for commutation to positive and to zero.
This solution increases frequency performances allowing longer
cable connections and an optimal data trasmission even at
high working speed. Saturation signals are low but sometimes
higher than in NPN and PNP electronics. Anyway, PUSH-PULL
electronics is in any case indifferently applicable instead of NPN
or PNP.
OUTPUT CONFIGURATIONS
NPN
Power supply
RECEIVER
51
www.eltra.it
e-mail: [email protected]
Via Monticello di Fara, 32 bis - Sarego (VI) - ITALY - Tel. +39 0444 436489 R.A. - Fax +39 0444 835335
© Copyright 2005 Eltra S.p.a.-- All
A right reserved. All information in this catalog is subject to change without notice - ELTRA takes no responsability for typographical errors.
For the terms of sales please check the website: www.eltra.it
INSTALLATION AND
OPERATION PRECAUTIONS
The encoder must be used with respect to its specifications. Encoder is a pulse
generator and not a safety device
Assembling and installing personnel must be qualified and carefully follow instructions of technical manual.
I N S TA L L AT I O N A N D O P E R AT I O N P R E C A U T I O N S
Don’t expose the device to stress or impacts in order to ensure the corr ect
working otherwise the warranty expires
52
Make sure that the mechanical coupling of the encoder shaft is designed with
the appropriate elastic couplings, especially in the case of accentuated axial or
radial movements
Make sure that the enviroment of use is free of corrosive agents (acids, etc.) or
substances that are not compatible with the device
Check the ground connection of the device if it is not possible to provide additional external connection.
Before putting it in operation, verify the voltage range applicable to the device
and protect it from exceeding the stated technical specifications.
Connect power supply and signals cables in order to avoid capacitive or inductive interferences that may cause malfunction of the device.
Cable wiring must be carried out in a POWER-OFF condition
For safety reasons, we strongly recommend to avoid any mechanical or electrical
modification. In that case, they will void the warranty
M a i n p rodu ct w arran ty term s
Replacements or repairs whether under the warranty or at the customer’s expense must be performed in the service department of Eltra Srl or by explicitly authorized personnel. Before sending material for repairing, you must
obtain an RGA number from our sales office. During the repair process in our service department, Eltra srl will be
authorized to remove all parts that the customer added to the product. Any malfunction due to a failure to observe
these usage and installation precautions will lead to the warranty voiding. Repairs will not extend the product warranty. We also exclude compensation for any type of damage or injury due to the use, or suspension of use, of the
tranducer.
Note: for additional information, refer to the sale terms on our website, www.eltra.it, or call our office.
SV012IT0305A
...IN THE WORLD
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ARGENTINA
AUSTRALIA
BRAZIL
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ISRAEL
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