Installation manual
Page 16 of27
5 Wiring of outputs
5.1
General specifications for wiring and testing
The wiring suggestions below show both the options for functional use of the relay outputs
and the wiring that is necessary for diagnostics in each case. Diagnosis must always be
carried out in the case of any safety-relevant use of the relay outputs. Apart from the wiring,
diagnostics requires integration into the application program of the monitoring function for
secure outputs
“EMU” – For more details on this topic, refer to the programming manual.
Safety note:
When using the relay outputs for safety-relevant functions, you must observe the
information below, in particular the specifications on wiring diagnostics.
The diagnostics for achieving the respective Pl and SIL in accordance with the wiring
suggestions below, require you to integrate an associated diagnostics function into
the application program
– For more details on this topic, refer to the programming
manual.
For applications with frequent safety shut-down requests, these tests should be
performed more frequently, e.g. at the beginning of the shift, 1 x per week. However,
a test should at least be carried out cyclically 1 x year.
You must parameterize the HISIDE outputs of the PSCBR31R module as safety
outputs (see configuration of PSCBR-E-133-12DI-2DIO-8RO)
Wiring example relay with feedback:
X14
DI1
DI2
DI3
DI4
EA1
EA2
P1
P2
X12
K1/11
K1/12
K2/11
K2/12
X07
Fig.: Feedback of AK1
