Pilz PNOZ s7.1 C 24VDC 3 n/o 1 n/c cascade - Manual (Page 8)

PNOZ s7.1
Operating Manual PNOZ s7.1
21865-EN-08
8
} Connection to PNOZsigma base unit
Base unit: Safety relay PNOZsigma
The feedback loop is con-
nected and evaluated via the
connector.
Information
If a base unit and a contact expansion module from the PNOZsigma range
are linked via the connector, no additional wiring is necessary.
Do not connect A1 und Y1/Y2 to the expansion module!
Operation
LEDs indicate the status and errors during operation:
LED on
Status indicators
In1
Channel 1 actuated.
In2
Channel 2 actuated.
In1, In2, Out
Safety contacts are closed.
Power B1
Supply voltage applied for the expansion modules.
Fault indicators
Fault
Diagnostics: Plug terminator not connected
} Remedy: Insert plug terminator, switch supply voltage off and then on
again.
Faults - malfunctions
} Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.