Event name External Test Signal Failure at Safety Input Event code 65220000 hex
Meaning An error was detected in test pulse evaluation of the safety input terminals.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details NX Unit Detection tim-
ing
During refresh-
ing
Error attrib-
utes
Level Minor fault Recovery When safety
input terminal
goes inactive
after cause of
error is re-
moved
Log category System
Effects User program Continues. Operation The safety input terminal retains the safe state until
the error is cleared.
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
The positive power supply wire is
in contact with the input signal
line.
Check the external wiring. Set the parameters and wire the
system considering the correc-
tions that are given on the left.
The input signal lines are short-
ed.
The external device is faulty. Replace the external device.
Attached in-
formation
Attached information 1: Terminal number
Precautions/
Remarks
None
12 Troubleshooting
12 - 82
NX-series Safety Control Unit User's Manual (Z930)
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