7
Connection Examples
EDBC250SIO | 2.0
96
Note
,
information
Consider the fault detection time!
The setup needs 5 ms to detect a fault. Faults may therefore produce high
impulses of this width.
Use a two-channel connection of the outputs in case your application responds
to these impulses.
In order to monitor the relay states, you must connect the positively drive n.c. contacts of K1
and K2 to safe digital inputs. Set the safe PLC to analyse the values returned and, thus, the
states of the switching devices.
Best safety ratings of applications using one output for a safety function
Highest safety integrity level to EN 62061:2010
SIL3
Highest safety integrity level to IEC 61508:2010
SIL3
Category and highest performance level to EN ISO 13849-1:2015
Cat. 3/PL e
Hardware fault tolerance (HFT) of single-channel application (IEC
61508:2010/EN)
1
(a fault of the application does not cause the
safeguard to fail)
I
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