Mounting and wiring instructions /
Safety relay module
for emergency stop monitoring and guard door monitoring
PROTECT
SRB 200EXi-1R
2
0V S12
J
S11 S21 S22
K
B
K
A
K
A
K
B
K
A
K
B
K2
K1
A2
PA PA
N
14 24
S
Logic
Installation
up to
zone 2
Installation
up to
zone 1/21
K1
K2
U
i
U
EXi
F1
F2
U
B
13
L1
23
A1
X1 X2
nQS
QS
2-channel selection shown by way of example
of a guard monitoring with two position
switches, of which at least one is positively
opening; with external reset button
J
.
Power level: 2-channel selection control,
suitable for contact amplification or contact
multiplication by means of contactor or relay
with positive driven contacts.
Wire breaks, earth leakages and cross-shorts
in the monitoring circuits are detected.
S
= feedback loop
Safety function
The safety function is defined as follows: The
enabling outputs 13-14/23-24 is open, when
the inputs S11-S12 and/or S21-S22 opens.
The safety related current path with the output
contacts 13-14 fulfil in consideration with a
B
10d
-value view the following requirements
(refer also to “Information within the meaning
of DIN EN ISO 13 849-1”):
category 4 – PL e
•
acc. DIN EN ISO 13 849-1:2007
is equivalent to SIL 3
•
acc. DIN EN 61 508-2:2002
is equivalent to SILCL3
•
acc. DIN EN 62 061:2005
(is equivalent to control category 4
acc. DIN EN 954-1:1997)
For designation of the performance level (PL)
acc. DIN EN ISO 13 849-1:2007 of the whole
safety function (e.g. sensor, logic, actor) a view
to all relevant components is necessary.
Type designation
SRB 200EXi-1R (installation of the sensors up
to zone 1/21)
Enabling current paths: 2 NO
•
Operating voltage: 24 VDC
•
Order number: 1196284
•
Approvals: TÜV 08 ATEX 7522,
•
TÜV 08 ATEX 7557X
Authorised applications
The applicable laws or guidelines for the use
or the planned application are to be consid-
ered. The safety relay module is for use in:
Emergency stop circuits with control de-
•
vices to DIN EN ISO 13 850:2007,
EN 60 947-5-5:2005
Guard door monitoring circuits with locking
•
device to EN 1088:2007
Monitoring circuits with electromagnetic
•
safety switches to EN 60 947-5-3:2005
U
EXi
U
B
U
i
K1
K2
SRB
200EXi
-1R
0V X1 X2
S11 S12 S21 S22
13 14 23 24
PA PA A1 A2
