Operation
Operating Manual PNOZ m1p (ETH)
20878-EN-16
27
7 Operation
When the supply voltage is switched on, the PNOZmulti safety system copies the configur-
ation from the chip card.
The LEDs “POWER”, “DIAG”, “FAULT”, “IFAULT” and “OFAULT” will light up on the base
unit.
The PNOZmulti control system is ready for operation when the "POWER" and "RUN" LEDs
on the base unit are lit continuously.
7.1 LED indicators
Legend
LED on
LED flashes
LED off
Basis Exp.
Error
The existing user program has been deleted.
External error on the base unit, leading to a safe
condition, e.g. terminator not connected
External error leading to a safe condition, e.g.
short across the contacts or error at safety mat
input.
External error on the base unit outputs, e.g. short
across the contacts, leading to a safe condition.
External error, leading to a safe condition, e.g.
short across the contacts
External error on the output
Internal error on the base unit
Internal error on the base unit
Internal error on the base unit
Internal error on the expansion module
Base unit in a STOP condition
External error on the base unit inputs, which
does not lead to a safe condition, e.g. partially
operated
External error on the base unit outputs, which
does not lead to a safe condition, e.g. feedback
input defective