Pilz PNOZ s2 C 24VDC 3 n/o 1 n/c - Manual (Page 8)

PNOZ s2
Operating Manual PNOZ s2
21394-EN-07
8
Operation
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 sta-
tus. Several status indicators and error indicators may occur simultaneously.
Status indicators
Power, In1, In2
Input circuit is closed.
Out
Safety contacts are closed and semiconductor output Y32 carries a high signal.
Reset
24 V DC 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 the supply voltage.