Omron G9SP-N20S - 13-2 Error Details and Measures

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Error Details and Measures Section 13-2
13-2 Error Details and Measures
This section describes how to troubleshoot errors that occur in the G9SP-
series Controller.
13-2-1 Fatal Errors
System Errors
Unit Configuration Errors
Force-set/reset Errors
Memory Cassette Errors
The G9SP-series Controller may perform a Memory Cassette operation if it is
started with a Memory Cassette inserted or with DIP switch pin 4 set to ON. If
an error is detected in that status, the ERR/ALM indicator will light red, and
the terminal number will light red on the Safety Input terminal indicators to
indicate error details.
Error name Probable cause Action
System failure 1. A hardware error has been detected in hard-
ware self-diagnosis.
2. A memory error due to, for example, a soft-
ware error has been detected.
Cycle the power supply. If the error occurs
again, replace the Unit.
Internal NVS access
error
An error has been detected when writing the
internal NVS.
Cycle the power supply. If the error occurs
again, replace the Unit.
Error name Probable cause Action
Unsupported Expan-
sion I/O Unit
The G9SP-series Controller was started with an
unsupported Expansion I/O Unit connected.
With the power supply OFF, adjust the system to
the proper Unit configuration, and then turn ON
the power supply again.
Expansion I/O Unit
maximum connec-
tion number
exceeded
The G9SP-series Controller was started with
three or more Expansion I/O Units connected.
With the power supply OFF, adjust the system to
the proper Unit configuration, and then turn ON
the power supply again.
Unsupported Option
Board
The G9SP-series Controller was started with an
unsupported Option Board mounted. (In particu-
lar, only unit version 2.0 or later of the CP1W-
CIF41 Ethernet Option Board is supported.)
With the power supply OFF, adjust the system to
the proper Unit configuration, and then turn ON
the power supply again.
Error name Probable cause Action
Force Mode timeout The Force Mode has timed out and program
execution has stopped.
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Not lit
Lit yellow
MS
MC
IN LED 0 1 2 3 4 5 6 7 8 9
Lit red
ERR/ALM
The corresponding I/O indicator
will light to show the type of error.
MEMORY