PNOZ 8
Operating Manual PNOZ 8
22152-EN-05
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Status indicators
LEDs indicate the status and errors during operation:
LED on
POWER
Supply voltage is present.
CH.1
Safety contacts of channel 1 are closed.
CH.2
Safety contacts of channel 2 are closed.
FAULT
Short circuit: internal fuse has blown.
Faults – Interference
} Earth fault/short circuit: an internal fuse interrupts the supply voltage, the safety contacts
are opened and the "FAULT" LED is lit. Once the cause of the fault has been removed,
press the reset button to reset the fuse. On AC units, a magnetic circuit breaker is used
as an internal fuse; on DC units, a thermal circuit breaker is used as an internal fuse.
} Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.
} LED "POWER" does not light: Short circuit or no supply voltage.
Dimensions in mm
121 (4.76")
75 (2.95")
87 (3.42")
90 (3.54")
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