MSI-s, MSI-sx
Advantages - MSI-s
" Safety interface, Type 4, according to IEC-, EN 61496-1 or EN 954-1, Category 4
" 1 AOPD, Type 4, or 2 AOPDs, Type 2, can be connected
" Start/restart interlock and relay monitoring can be selected
" 2 normal open contacts, max. 6 A, or 2 failsafe pnp outputs
" RS 232 interface for PC-supported diagnostics and easy start-up
" Status outputs "switch output status” and "start/restart interlock status”
" Pluggable connection terminals and pluggable output subassemblies
" Multiple MSIs can be cascaded
" Reinforced isolation up to 4 kV in accordance with IEC 439-1
" Housing width: 35 mm
Additional Advantages - MSI-sx
Safety Interface
Subject to change without notice
The modular safety interfaces of the MSI family
serve as a link between one or more optoelectronic protective devices (AOPDs), Type 2,
Type 3 or Type 4, and the machine controls.
The individual versions offer various safetyrelated additional functions, such as start/restart interlock, relay monitoring, test monitoring
of Type 2 sensors, single break/double break
control, or muting. All components are
available with a choice of relay outputs or failsafe pnp semiconductor outputs. In addition,
the -x versions also allow the connection of
safety switches or Emergency Stop pushbuttons in accordance with Category 4.
" 2 AOPDs, Type 4, or up to 4 AOPDs, Type 2 or, for example, 1 AOPD, Type 4,
and 1 safety switch can be connected
" Counting of relay operations with pre-failure message for preventive maintenance
" Warning output "relay life expectancy reached; recommend relay replacement”
Areas of Application
" Interface component between optoelectronic protective devices, Type 4, Type 3
or Type 2, and machine controls with the functions start/restart interlock, relay
monitoring
" Light barrier interface, Type 4, and Emergency Stop disconnection,
Stop category 0 (IEC 60204-1)
EN 954
Kat. 4
MSI
–2–
Leuze lumiflex
Function
Feature
Maximum safety category (EN 954-1)
Stop category (IEC-, EN 60204-1)
Max. number of AOPDs, Type 2,
or Emergency Stop command devices (Cat. 2)
Max. number of AOPDs, Type 4,
or Emergency Stop command devices (Cat. 4)
Cross circuit monitoring
Start/restart interlock
Static relay monitoring
Dynamic relay monitoring
RS 232 diagnostics interface
Status output "system error"
Warning "relay replacement necessary"
Secondary switching device (SSD) output opens additional to the
OSSDs in case of a MSI failure
MSI-s
4
0
2
MSI-sx
4
0
4
1
2
x
x
x
x
x
x
x
x
x
x
x
x
x
10
16
17
S2
S3
S4
13
11
14
0V
a
b
c
d
e
f
Reset
EDM
PNP
PNP
OSSD1
OSSD2
+24V
7
5
6
2
2
+
Warn.
State
State
OSSD1
5
Tx-Output
7
f
6
10
12
d
1
PNP
Rx-Output
RS 232
18
e
9
1
MSIfault
9
State
3
6
7
8
5
f
SSD
State
T-Output
OSSD2
AOPDs
MSI-sx/Rx
+
c
23
Leuze lumiflex
S2
AOPDs
PNP
S1
S1
OSSD1
T2
Test
T2
Diagn.
N.O.
T1
T1
14
13
SSD
22
Reset
24
Diagn.
6
b
15
+24V
a
4
23
RS 232
RS 232
0V
7
22
MSI-s/T
State
9
24
0V
Diagn.
15
Leuze lumiflex
R-Output
OSSD2
MSI-s/R
N.C.
Leuze lumiflex
4
Test
OSSD3
S2
AOPDs
N.O.
S1
2
N.O.
T2
Test
11
N.O.
T1
14
13
OSSD2
23
OSSD1
22
EDM
24
Reset
15
EDM
4
+24V
A detailed technical description is provided with every delivery.
d
= Test outputs for Type 2 test and cross circuit monitoring
= Inputs for connecting AOPDs or Emergency Stop command devices
= Input for relay monitoring
= Safety outputs, either relays or failsafe semiconductors
= RS 232 diagnostics interface
= Warning and status outputs
MSI
–3–
3
8
Electrical Connection
+24 V
2,5 AT
0V
d
k3
L+
Ph
6AT max
k2
a
24
22
16
17
13
14
T1
T2
S1 S2 S3
S4
Reset
EDM
AOPDs
Leuze lumiflex
Rx-Output
MSI-sx/Rx
Warn. State
State
9
OSSD1
RS 232
0V
b
5
18
7
g
f
MSIfault
6
12
i
10
SSD
Diagn.
2
OSSD2
Test
11
OSSD3
23
N.O.
15
N.C.
4
+24V
k1
N.O.
c
LN
3
1
e
K2*
K1*
k1
k2
k2
k1
h
k3
6AT max
K3*
LN
LN
**
L+
Ph
Connection example: MSI-sx/Rx with two Type 4 safety light curtains
a = AOPD, Type 4 (e.g. Compact)
b = AOPD, Type 4 (e.g. Compact)
c = Command device for start/restart interlock
d = Feedback circuit for relay monitoring
e = Secondary switch-off circuit (opens in case of MSI error)
f = Switching off path with 2-channel control
g = Switching off path with 1-channel control
h = Possible collective output for error/warning (active-low)
i = Safety outputs OSSD1 and OSSD2 (OSSD3 optional)
* = Suitable spark suppression required
** = Always use both contacts in the switching off path. Use only downstream relays
with positively opening contacts.
MSI
–4–
**
Leuze lumiflex
Dimensional Drawings
Technical Data
Relevant standards,
Safety category
1
4
2
5
a
b
e
State
Locked
Fault
S1 & S2
MSI
ROutput
7
10
8 9
11 12
Fault
2
5
3
6
13 14 15
16 17 18
lumiflex
Leuze
lumiflex
Diagn.
b
c
d
1
4
13 14 15
16 17 18
3
6
Leuze
g
h
Warn.
Diagn.
State
S3 & S4
c
Locked
d
Fault
MSI
Rx Output
MSI- s
7
10
19 20 21
22 23 24
IEC-, EN 61496-1, Type 4
EN 954-1 (12/96),
Category 4
IEC-, DIN EN 60204-1
(11/98), Stop 0
DIN V VDE 0801 and A1,
Specification class 6
Connectable safety
MSI-s: 1 AOPD, Type 4 *),
sensors
Type 3 or 2x Type 2
MSI-sx: 2 AOPDs, Type 4 *)
or up to 4 AOPDs,
Type 2
*) Sensors with relay or
semiconductor outputs
Connectable safety
Safety switches in accorswitches and comdance with EN 1088
mand devices
Emergency Stop pushbuttons in accordance with
EN 418
Response time
MSI-s/R or /Rx: 1)
(without AOPD)
MSI-s/T or /Tx: 2)
Functions
- Relay monitoring,
start/restart interlock
Relay outputs
MSI-s/R: 2 normal open
OSSDs
contacts, 6 A max.
MSI-sx/Rx: 2 normal open
contacts, 1 normal closed
contact, 6 A max.
Failsafe semiMSI-s/T: 2 PNP 24 V DC,
conductor outputs
0,5 A max. (inductive load)
OSSDs
MSI-sx/Tx: 2 PNP
24 V DC, 0,5 A max.
(inductive load)
Relay output SSD
MSI-sx/Rx, MSI-sx/Tx:
(opens in case of MSI 1 normal open contact,
failure)
6 A max.
Status outputs
"Switch output status” *)
"Start/restart interlock
status” *)
"Electrical relay life expectancy reached” *) **)
*) pnp 24 V DC, 50 mA
**) only for MSI-sx/Rx
Functions
- Relay monitoring,
start/restart interlock
- Emergency Stop
disconnection,
Stop category 0 *)
- Counting of relay
operations and prefailure message **)
*) only for MSI-sx/..
**) only for MSI-sx/Rx
Diagnostics interface RS 232
Supply voltage
24 V DC +/- 15%
(115/230 V AC power
supply as accessory)
Connection type
Pluggable screw-type
terminals up to 2.5 mm2
Protection class
II
Enclosure rating
IP 20; must be installed in
an electronics cabinet with
IP 54
Housing width
35 mm
e
f
S1 & S2
g
Fault
h
MSI- sx
8 9
11 12
19 20 21
22 23 24
35
35
Side view
99.0
111
113.6
a
b
c
d
e
f
g
h
= Theoretical relay life expectancy reached (LED red)
= Safety output status (LED red/green)
= Start/restart interlock locked (LED yellow)
= Error in safety output module (LED red)
= RS 232 diagnostics output
= AOPDs at S3 and S4 protected field free (LED green)
= AOPDs at S1 and S2 protected field free (LED green)
= MSI error (LED red)
Order Details
Type
MSI-s/R
MSI-s/T
MSI-sx/Rx
MSI-sx/Tx
MSI-AC230 (power supply 24V DC, 0.8 A)
MSI-AC115 (power supply 24V DC, 0.8 A)
MSI diagnostics software + PC cable
/R output subassembly (replacement part)
/Rx output subassembly (replacement part)
Order No.
549900
549920
549901
540021
549908
549940
549930
509210
509211
MSI
–5–
1) 18 ms for: AOPD, Type 4, with semiconductor
output
54 ms for: AOPD, Type 4, with relay output
AOPD, Type 2
Safety switches
2)
8 ms for: AOPD Type 4 with semiconductor
output
44 ms for: Type 4, with relay output
AOPD, Type 2
Safety switches