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12 Troubleshooting
Event name
Internal Circuit Error at Test Output
Meaning
A fault was detected in the internal circuit for the test output terminal.
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 internal circuit for the test
output terminal is faulty.
A memory error or signal error
occurred due to a transient
cause, such as an excessive
noise.
Attached in-
Attached information 1: Terminal number
formation
Precautions/
None
Remarks
12 - 78
Source details NX Unit
Minor fault
Recovery
Continues.
Operation
Data type
None
Correction
Cycle the power supply. If the er-
ror occurs again, replace the
Unit.
Event code
05220000 hex
Detection tim-
ing
Cycle the pow-
Log category
er supply to the
Unit.
The test output terminal retains the safe state until
the power supply is cycled. Also, an External Test
Signal Failure at Safety Input event (65220000
hex) will occur for the safety input terminal that is
the test source of the test output terminal.
Name
None
Prevention
If cycling the power supply re-
stores normal operation, there
may be excessive noise near the
Unit. Implement noise counter-
measures.
NX-series Safety Control Unit User's Manual (Z930)
During refresh-
ing
System
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Table of Contents
Troubleshooting
