Omron CJ Series Operation Manual page 82

1 Overview and Features
Error Table
The errors that may occur for this Unit are listed below.
The following abbreviations and symbols are used in the event level column.
Abbreviation
Maj
Prt
Min
Obs
Info
Symbol
S
U
* This symbol appears only for events for which the user can change the event level.
A version in parentheses in the Event code column is the unit version of the CPU Unit when the event
was added.
Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for all of the event codes that may
occur in an NJ-series Controller.
Event code Event name
04600000 hex A/D Conver-
sion Error
04610000 hex Cold Junction
Sensor Error
04620000 hex Non-volatile
Memory
Error
348D0000 hex Data Range
Error
647A0000 hex Input Error
647D0000 hex Zero/Span
Adjustment
Period End
647E0000 hex Zero/Span
Adjustment
Period Notice
1-46
Name
Major fault level
Partial fault level
Minor fault level
Observation
Information
Meaning
Event levels that are defined by the system.
Event levels that can be changed by the user.*
Meaning Assumed cause
An error occurred in • There is a source of noise
A/D conversion. nearby.
• A/D converter failed.
An error occurred in • Faulty connection to the cold
the cold junction junction sensor for the CJ1W-
sensor. PH41U.
• The cold junction sensor failed.
An error occurred in • There is a source of noise
non-volatile mem- nearby.
ory.
• Non-volatile memory failed.
A set value is out of • A set value is out of range.
range.
An input error • The analog input signal is out of
occurred. range.
• Input wiring is broken.
• Input wiring disconnection or
loose terminal
The zero/span • The zero/span adjustment
adjustment period period expired.
expired.
The zero/span • The notification period for the
adjustment period expiration of zero/span adjust-
is close to expiring. ment occurred.
CJ-series Analog I/O Units Operation Manual for NJ-series CPU Unit(W498)
Level
Maj Prt Min Obs Info
S U Page 1-48
S U Page 1-48
S Page 1-49
S Page 1-49
S U Page 1-50
U S Page 1-50
U S Page 1-51
Reference