
4.5.2
Example of Connection with PILZ PNOZ s6.1 Control Relay
Fig.4-8:
Suggested wiring of enabling swithches to fulfill safety category 3 PL d for the enabling switch
with PILZ control relay. Also follow the instructions described in the PILZ operating manual
about the device PNOZ s6.1. For calculation of the whole safety function "enabling" the control
relay and all subsequent components have to be considered.
4.5.2.1
Functional procedure
●
Only if both channels are activated "simultaneously (
≤
0,5s)" (by pressing
one of the enabling switches) both output relays K1 and K2 will energize
and the output contacts 13-14 and 23-24 will close.
●
The output relays K1 and K2 will not energize if
●
only one enabling channel is activated (in case of a defect),
Connection
© KEBA 2009
User's Manual V1.50
31