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