PNOZ s2
Operating Manual PNOZ s2
21394-EN-11
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The unit is ready for operation when the Power LED is permanently lit.
LEDs indicate the status and errors during operation:
LED on
LED flashes
INFORMATION
Status indicators and error indicators may occur independently. In the case
of an error display, the "Fault" LED will light or flash (exception: "Supply
voltage too low"). An LED that is also flashing indicates the potential cause
of the error. An LED that is lit and is static indicates a normal operating
status. Several status indicators and error indicators may occur simultan-
eously.
Status indicators
POWER, IN1, IN2
Input circuit is closed.
OUT
Safety contacts are closed and semiconductor output Y32 carries a high signal.
RESET
24 VDC is present at S34.
Error indicators
FAULT
Diagnostics: Plug terminator not connected
} Remedy: Insert plug terminator, switch supply voltage off and then on again.
FAULT
Diagnostics: Internal error, unit defective
} Remedy: Switch supply voltage off and then on again, change unit if neces-
sary.
POWER
Diagnostics: Supply voltage too low
} Remedy: Check supply voltage and increase if necessary.
RESET FAULT
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