The safety relay series X2 monitors 2 safety functions.
Safety function 1: Emergency stop circuit with manual reset button
Safety function 2: Series connection of one HOLDX master and one HOLDX slave with manual reset button.
The Termination Plug R120 is connected to the slave's X2 connection. The safety outputs Pin 2 (X1) and Pin 4 (X1) of the HOLDX master are connected to the safety relay X2 series, con-
nection S42 and S32. The safety relay was set to setting 1 for safety function 1 and setting 3 for safety function 3. The connector Serial OUT of the HOLDX master Pin 7 (X1) and Pin 8 (X1)
and Serial IN Pin 5 (X1) and Pin 6 (X1) are connected to a PLC.