Mounting and wiring instructions /
Safety relay module
for emergency stop monitoring and guard door monitoring
PROTECT
SRB 200EXi-1R
6
Sensor configuration
Single-channel emergency stop
circuit with control devices acc.
DIN EN ISO 13 850:2007 (EN 418) and
EN 60 947-5-5:2005
Detects wire breaks and earth leakages in
•
the control circuits.
For monitoring the safety circuits the emer-
•
gency stop control devices can be executed
as “simple apparatus”.
Example devices refer to section “
•
Simple
apparatus”.
Category 2 – PL d acc.
•
DIN EN ISO 13 849-1:2007 reachable.
S12
S11
S22
S12
nQS
QS
E-
Stop
Sensor configuration
Dual-channel emergency stop
circuit with control devices acc.
DIN EN ISO 13 850:2007 (EN 418) and
EN 60 947-5-5:2005
Detects wire breaks and earth leakages in
•
the control circuits.
Cross-shorts between the control circuits
•
are detected.
For monitoring the safety circuits the emer-
•
gency stop control devices can be executed
as “simple apparatus”.
Example devices refer to section “
•
Simple
apparatus”.
Category 4 – PL e acc.
•
DIN EN ISO 13 849-1:2007 reachable.
S12
S11
S22
S21
nQS
QS
E-
Stop
Sensor configuration
Dual-channel emergency stop
circuit with control devices acc.
DIN EN ISO 13 850:2007 (EN 418) and
EN 60 947-5-5:2005
Detects wire breaks and earth leakages in
•
the control circuits.
Cross-shorts between the control circuits
•
are not detected.
For monitoring the safety circuits the emer-
•
gency stop control devices can be executed
as “simple apparatus”.
Example devices refer to section “
•
Simple
apparatus”.
Category 4 – PL e acc.
•
DIN EN ISO 13 849-1:2007 reachable
(with protected cable laying).
S12
S11
S22
S21
nQS
QS
E-
Stop
X2
J
X1
K
A
K
B
Start configuration
External reset button
(without edge detection)
The reset button is connected – as shown –
•
in series to the feedback loop.
The module is activated by resetting (after
•
releasing) the reset button (= detection of
the trailing edge). Faults in the reset button,
e.g. welded contact or manipulation which
could lead to unintended restart are recog-
nised by this circuit leading to operational
interruption.
The control of the reset button effected over
•
an intrinsically safe circuit.
For starting the module the reset button can
•
be executed as “simple apparatus”.
Example devices refer to section “
•
Simple
apparatus”.
Schaltungsbeispiele
