Instruction Manual

PNOZ s7.1
Operating Manual PNOZ s7.1
21865-EN-08
7
Preparing for operation
} Supply voltage
Supply voltage AC DC
Base unit:
PNOZsigma safety relay








Base unit:
PNOZ X safety relay







Supply voltage for expansion
modules PNOZsigma







} Input circuit
Input circuit Single-channel Dual-channel
Base unit:
Safety relay PNOZsigma
Base unit:
Safety relay PNOZ X







Base unit:
Safety relay PNOZelog Driv-
en via semiconductor out-
puts (24 V DC)







} Reset circuit/feedback loop
Reset circuit/feedback loop Base unit: Safety relay
PNOZ X
Base unit: Safety relay
PNOZelog
The inputs that evaluate the
feedback loop will depend on
the base unit and application







Y1
Y2
24 V DC
PNOZsigma
expansion
module
feedback
loop