Lodam Compressor Protection Modules
Technical manual
Version 3.0
SE-B1, B2, B3, B4
Contents
1. Read this first. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Reading instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. User manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3. Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. How to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Funtions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. Examples of application use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1. Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8. Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9. Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10. Trouble shooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
11. Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
12. Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Page 2
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
Page 3
1. Read this first
The contents of this manual are subject to change without
notice. Lodam electronics holds the copyright to this user’s
manual. The user shall follow any instructions given in this
user manual entirely and not only partly. Any non-following of this user manual result in exclusion of all warranties,
guarantees, and liabilities. Copyright© 2014 by Lodam
1.1. Reading instructions
The following symbols are used to draw the reader’s
attention­to different warning levels.
Important information.
electronics a/s. All Rights Reserved.
Danger!! General danger.
Disposing of the parts of the controller:
INFORMATION FOR USERS ON THE
Danger of electrical current or voltage.
CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
In reference to European Union directive 2002/96/
EC issued on 27 January 2003 and the related national
legislation, please note that:
1. WEEE cannot be disposed of as municipal waste and
such waste must be collected and disposed of separately;
2. The public or private waste collection systems defined
by local legislation must be used. In addition, the equip-
1.2. User manual
Before installation the user should be thoroughly
familiarized with this user manual, especially with
purposes, installation and operation.
Special care should be taken when installing and connecting external equipment (PTC sensor, high voltage etc) and
handling the modules correctly according to protection
against ESD.
ment can be returned to the distributor at the end of its
Installation of the SE-B1/SE-B2/SE-B3/SE-B4
working life when buying new
must be performed by authorized personnel only.
equipment;
3. The equipment may contain hazardous substances:
All warranties are excluded in case installation is
performed by unauthorized personnel or in case the
the improper use or incorrect disposal of such may
SE-B1/SE-B2/SE-B3/SE-B4 has not been correctly
have negative effects on human health and on the
installed.
environment;
4. The symbol (crossed-out wheeled bin) shown on the
product or on the packaging and on the instruction
1.3. Safety
sheet indicates that the equipment has been intro-
The SE-B1/SE-B2/SE-B3/SE-B4 is a protection
duced onto the market after 13 August 2005 and that it
device and not a safety component according to
must be disposed of separately;
the Machinery Directive and can not be used in
5. In the event of illegal disposal of electrical and elec-
“medical” or “life support” equipment.
tronic waste, the penalties are specified by local waste
disposal legislation.
Before plant commissioning the service technician shall
ensure that personal safety requirements are met in
conformity with the Machinery Directive on the basis of
safety estimations.
Electrical plant failures are to be immediately
solved, even though no immediate danger exists;
the SE-B1/SE-B2/SE-B3/SE-B4 and motor must
be without power.
Page 4
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
2. General
3. Definitions
The protection devices SE-B1, SE-B2, SE-B3 and SE-B4.
Product range
Hereafter SE-Bxare used for protection of the motor
against overheating by monitoring motor temperature by
means of PTC-sensors mounted in the motors windings.
Further, other temperatures can be monitored by for
example mounting PTC-sensors in the discharge outlet
of a compressor, for monitoring the oil temperature or the
Definitions
HW
Hardware/electronics
NC
Normally Closed (relay)
NO
Normally Open (relay)
PTC
Positive Temperature Coefficient (sensor element)
SE-Bx
A SE-B1, SE-B2, SE-B3 or SE-B4 compressor protection
module
temperature in vessels.
In other areas where PTC-sensors are installed, they can
also be monitored by a SE-Bx protection module. Due to
their fast reaction time, good accuracy and built-in relay
they can be a good solution instead of a separate controller. They can also be used as switch relays.
A SE-Bx is default wired up for lockout in case of an
overheat situation, but can also be used as a thermostat/
switch relay via the cool down period of the media surrounding the PTC-sensor.
Page 5
4. How to
Use the SE-Bx in lockout mode
SE-B1/SE-B2/SE-B3
Use the SE-Bx in restart / hysteresis mode
SE-B1/SE-B2/SE-B3
SE-B4
SE-B4
The wire jumper is default mounted in the two unnamed
terminals – located between terminals N and 12. In this
The wire jumper between the two unnamed terminals is
mode a fault condition will need a manual reset to release
removed.
the relay.
After an overheat condition, the relay is energized again as
soon as the resistance is below the lower threshold level of
2.7 kOhm. There is no timer function in the SE-Bx.
Page 6
Safety
chain
(NC)
Open
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
Relay
14 11
Close
relay
12
Open
relay
Closed
5. Funtions
14 11
If the restart blocking wire jumper is removed, the relay
behaves like on the following diagram.
2,7kΩ
The SE-Bx is a motor protection module. By monitoring
the resistance in a PTC sensor, it will open its relay when
the resistance of the PTC sensor increases above the limit
Safety
chain
(NC)
Open
Closed
44081/82. The resistance of these PTC-sensors are not
Relay
Not
Lockout
and thereby cutting the control power as shown on the
12
14 11
12
(PTC resistance)
2,7kΩ
detected by the protective device and the relay is released
14 11
Lockout
open relay
linear, but gives a steep rise in resistance when the threshold temperature of the PTC-sensor is reached. This is
RPTC
Lockout
as shown below.
The PTC-sensor could for example be according to DIN
4,5kΩ
12
(PTC resistance)
4,5kΩ
RPTC
In this mode, there is a hysterese from 2,7kOhm to 4,5
kOhm. When the resistance in the PTC-sensors increases
diagram below.
above 4,5 kOhm, the relay is released. The relay is released
as long as the resistance is above 2,7 kOhm. When the
Safety
chain
(NC)
Open
Relay
14 11
Close
relay
12
resistance comes below 2,7 kOhm, the relay is energized.
This hysteresis can be used for applications where the
media where the PTC-sensors are mounted has such a
Open
relay
large temperature inertia that this hysteresis is sufficient.
Closed
14 11
12
(PTC resistance)
2,7kΩ
4,5kΩ
RPTC
Safety
Since
chain the increase in resistance is so steep, from 1 up to 9
(NC)
Open
Relay
PTC-sensors canLockout
be coupled in series without raising the
14 11
actual temperature threshold more than a few degrees
12
Lockout
open relay
Celsius.
Not
Lockout
Default
Closed there is a restart blocking wire jumper to prevent
14 11
a motor from being started too soon after having been
12
(PTC resistance)
overheated. A manual reset must be done by
RPTCremoving
2,7kΩ
4,5kΩ
power from the module for minimum 5 seconds and then
applying it again.
Page 7
L1
L2
L3
N
PE
1
F1
1
0
Page 8
M3
1W1
3
4
R7
Please see details regarding connection inside the terminal box
R1-3
M1
Lockout wire jumper
1U1
Relay NC – Ok condition
Unnamed
1V1
14
F13
9
Relay NO – Error condition
2
1
Relay common
12
01
S1
L
4A
7
H1
11
SE-B1
SE-B2
SE-B3
SE-B4
12
N
F3
Neutral
11
6
N
5
Power supply
4
Description
L
K1
11
F2
3
Terminal
Q1
2
14
B1 B2
F13
3
8
9
10
N
L
F6
P<
F5
P>
3/3/3/12/
16/17
18/19
K1
B1
K2T
18
F4
11
H2
K1
11
S
T2
12
0/220
13
14
15
Y2
K1
11
16
Y3
B2
K1
11
17
11
K2T
K1
11
18
6.1. Connections
Option
R8
K1
11
F12
4A
19
6. Examples of
application use
Compressor protection module with a direct starting
compressor
Method 1:
L1
L2
L3
N
PE
1
F1
L1
L2
L3
N
PE
1
0
K1
11
F2
1
0
K1
11
F2
M3
1W1
1V1
3
4
R7
2
5
1
6
M1
M3
R1..6
1W1
1V1
1U1
3
F14
9
4
2W1
2V1
2U1
K2
14
5
R7
2
1
6
S2
01
S1
F3
S2
01
S1
F3
H1
11
SE-B1
SE-B2
SE-B3
SE-B4
12
N
L
4A
7
Please see details regarding connection inside the terminal box
R1..3
M1
1U1
F13
9
Q1
4
Please see details regarding connection inside the terminal box
F13
9
Q1
2
F1
3
14
F4
13
3/3/3/10/
15/16/
18/19
B1
K2T
18
F6 P<
F5 P>
K3
9
11
11
Black
Brown
K1
11
10
Black
Brown
K1
11
10
K1
Orange
9
13
11
K3
Orange
Red
9
K3
F14
5
14
B1 B2
F13
3
8
F4
Red
B1 B2
F13
3
8
H1
11
SE-B1
SE-B2
SE-B3
SE-B4
12
N
L
4A
7
max 0.5 sec
14
K1T
12
3/3/3/10/
16
18/19
K1
B1
K2T
18
F6 P<
F5 P>
K3
9
11
H2
K3
9
13
12
K2
K1T
12
15
5/5/5/17
14
H2
K3
9
13
Y1
K1
11
K2
14
15
14
Y2
K1
11
16
15
17
Y3
B2
K2
14
Y2
K1
11
16
18
11
K2T
K1
11
Y3
B2
17
Option
2
R8
K1
11
F12
4A
19
11
K2T
K1
11
18
R8
K1
11
F12
4A
19
Method 2:
Option
1
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
Compressor protection module with a part winding
compressor.
Method 1:
Page 9
Page 10
L1
L2
L3
N
PE
F1
1
0
K1
11
F2
1W1
1V1
1U1
3
R1-6
M3
M1
F14
9
4
3
4
2W1
2V1
2U1
K2
12
5
R7
6
Please see details regarding connection inside the terminal box
F13
9
Q1
2
2
1
01
S1
F3
H1
11
SE-B1
SE-B2
SE-B3
SE-B4
12
N
L
4A
7
14
B1 B2
F14
5
F13
3
8
9
10
N
L
F6
P<
F5
P>
5/5/5/17
3/3/3/12/
16/
18/19
S
T2
K2
K1T
13
H2
K1
11
12
K1
B1
K2T
18
F4
11
max 0.5 sec
12
K1T
0/220
13
Y1
K2
12
14
15
Y2
K1
11
16
Y3
B2
K2
12
17
Option
1
11
K2T
K1
11
18
R8
K1
11
F12
4A
19
Method 2:
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
Oil flow monitoring using the SE-B1/SE-B2/SE-B3/SE-B4
module:
1
L1
L2
L3
N
PE
2
3
4
5
6
7
8
9
10
11
12
13
14
01
F1
S1
1
0
Q1
F3
4A
F2
F5 P>
S2
F6 P<
K4T
20
K5T
22
K1
9
K3
11
K2
9
11
L
B1 B2
SE-B1
SE-B2
N
F13
9
12
L2
+
F8
14
F13
2
M1
M3
C1
R7
L3 12
F7
F9 )(
14
L1 11
1
2
3
K3T
19
7
8
9
K1T
13
K1
10
K2
9
K3
12
H2
K1
10
K1
10
K2
9
K3
12
H1
K2
5/5/5/10
12
K1
K3
2/2/2/11/12
13/16/17/19
18/20/25
4/4/4/16
24
9/13/18/25
K1T
2-3s
9
Page 11
Using the C1 electrolytic capacitor together with an additional time delay K3T will allow a temporary bridging of
the monitoring function.
Please note: The C1 electrolytic capacitor will be destroyed
if mounted with wrong polarity! Measure the polarity off
the two leads and connect the C1 according to the drawing.
Legend for the schematic diagrams
B1/B2
Control unit
C1
Electrolytic capacitor
F1
Main fuse
F2
Compressor fuse
F3
Control circuit fuse
F4
Differential oil pressure switch
F5
High pressure limiter
F6
Low pressure limiter
F7
Control circuit switch
F8
Phase sequence control relay
F9
Oil flow switch
F12
Fuse for the crank case heater
F13/F14
Thermal motor overload relay
H1
Signal light “Over temperature”
H2
Signal light “Oil pressure/flow fault”
K1/K2/K3
Motor contactors
K1T
Time relay for part winding operation 2-3 s
K2T
Time relay Start-up delay
K3T
Time relay oil flow monitoring 10-20 s
K4T
Time relay pause time 300 s
K5T
Time relay oil level monitoring 120 s
M1
Compressor
Q1
Main switch
R1..3
PTC sensors in motor windings
R1..6
PTC sensors in part winding motor windings
R7
PTC sensor in cylinder head/discharge gas temperature
sensor
R8
Crank case heater
S1
Control switch
Y1
Solenoid valve (Start unloading)
Y2
Solenoid valve (Liquid line)
Y3
Solenoid valve (Capacity control – Expansion valve)
Page 12
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
7. Technical data
Technical specifications
Description
SE-B1
SE-B3
SE-B4
Supply voltage
230 VAC; +10% ~-15%, 50/60 Hz 2VA
24 VAC; +10% ~ -15%, 50/60 Hz 2VA
24 VDC; +20% ~ -20%, 50/60 Hz 1W
24 VDC version: no galvanic isolation
SE-B2
115 - 230 VAC;
+10% ~ -15%
50/60 Hz 2VA
230 VAC; +10% ~ -15%,
50/60 Hz, 2VA
24 VAC; +10% ~ -15%,
50/60 Hz, 2VA
Permitted ambient temperature
-30°C – +70°C
-30°C – +60°C
Relative humidity
Max. 95% RH non-condensing
Electronic circuit board is coated
Air pressure
660 hPA to 1060 hPA
PTC sensor cable length
120 mm
Relay
24 VAC/VDC versions
Switch voltage 24 VAC/VDC Continuous current max 10 mA (gold plated contacts).
If current limit is exceeded, gold plating will be destroyed and current limit is then like the other versions listed
below
350 mm
All versions Switch voltage 250 VAC.
Continuous current max 2.5A
Switching capacity 300 VA, C300 (pilot type use according to UL508)
Fuse required
Max. 4A, fast-blow
Enclosure class
Terminals IP00
Field wiring markings
Wire type (Cu only, 14 – 20 AWG)
Use 60°C copper conductors only
Terminal torque rating
6 lb-in.” / 0.7 Nm or equivalent
Type of sensor
PTC according to DIN 44081/44082
Number of sensors
1 to 9 in series
Max total resistance, R25 total
< 1.8 kΩ
RTrig
4.5 kΩ ±5%
RReset
2.7 kΩ ±5%
Reset
Interrupt supply power for min. 5 seconds
Weight
150g; 24 VDC version: 90g
Dimensions
68.3 mm (w) * 32.5 mm (d) * 50 mm (h)
Mounting
35 mm snap-in or mounting with screws
Housing material
PA66 - GF
UL file number
E334756
Terminal wire range
Cu 60°C only. 20-14 AWG / 0.5 mm2 - 2,0 mm2
Spade connection 6.3
mm * 0.8 mm / 1/4”
Page 13
10,0
±0,5
50,0
±1
8. Drawings
29,2 1
±1
55,5
32,5 1
68,3
±0,5
Shown without wire
10
50 ±0,5
SE-B1/SE-B2/SE-B3
33 ±0,5
+1
68 0
55,5 ±0,5
3,5
4,5
2,5
7
SE-B4
Mounting is for standard rail 35 mm according to DIN EN
60715.
Page 14
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
9. Standards
10. Trouble shooting
The product is manufactured according to the following
Check if there is power to the unit according to
standards.
• RoHS 2002/95/EC
specification.
• Low voltage 206/95/EC
• 61010-1 Safety requirement for electrical equipment for
measurement and control
If the power is ok:
• Turn off the power for 5 seconds and see if the relay is
energized after power on again.
• EMC 2004/108/EC
If not, turn off all the power to avoid risk of injury!
• 61000-6-x Generic EMC
• Unmount one of the cables to the PTC element in the
motor
The following standards have been used
• EN 61010-1
Safety requirement for electrical equipment for measurement and control
• EN 61000-6-1
Immunity for domicil, profession and light industry
• If the measured resistance is above 4.5 kΩ ±5%, the
temperature of the PTC-sensor is above the threshold
limit and the relay has been released to protect the
motor or installation.
• If the measured resistance is more than 1 MΩ, there is a
brokenconnection to the PTC-sensor and the relay will
not be engaged.
• EN 61000-6-3
Emission for domicil, profession and light industry
• If the measured resistance is close to 0 Ω, there is a
short circuit on the PTC-sensor cables and there is no
overheat protection!
• UL 508
UL file number E334756
• If power and resistance is ok, the protection module may
be defect and needs replacement.
Page 15
11. Index
A
S
Application use 8
Schematic diagrams 12
D
Definitions 5
Sensor type 13
Standards 15
Dimensions 13
T
Direct starting compressor 8
Technical data 13
Drawings 14
Terminal torque rating 13
E
Enclosure class 13
F
Field wiring markings 13
Function 7
Fuse required 13
H
Housing material 13
L
Lockout mode 6
M
Max total resistance 13
Mounting 13, 14
N
Number of sensors 13
O
Oil flow monitoring 11
Operation voltage 13
P
Part winding compressor 9
Permitted ambient temperature 13
PTC sensor cable length 13
R
Relay 13
Reset 13
Restart / hysteresis mode 6
Page 16
Trouble shooting 15
W
Weight 13
Technical manual SE-B1, SE-B2, SE-B3, SE-B4
12. Notes
Page 17
Innovative and energy saving
climate control
•
•
•
•
•
•
16-01-2015 Contents are subject to change without notice.
When it comes to climate control Lodam is one of the most experienced you can turn to. For
more than four decades we have developed, produced and implemented electronic solutions
dedicated to optimising applications like:
Compressors
Condensing units
Heat pumps
Air conditioning
Refrigerated truck and trailer
Reefer containers
We know the importance of reliable, energy-efficient operation – and constantly push technological­boundaries to bring you the most innovative and forward-thinking solutions.
As part of the BITZER Group we are backed by one of the world’s leading players in the
refrigeration and air conditioning industry. This alliance provides us with extensive network and
application knowhow and allows us to stay at the forefront of climate control innovation. And
to help ensure comfortable surroundings for humans and reliable protection of valuable goods
anywhere in the world.
For more information visit:
Lodam electronics a/s
Kærvej 77
6400 Sønderborg
Denmark
www.lodam.com
Tel. +45 7342 3737
Fax +45 7342 3730
[email protected]