Omron NJ Series Troubleshooting Manual page 159

CJ-series Temperature Control Units
The section provides tables of the events that can occur in the following Units.
CJ1W-TC003
CJ1W-TC004
CJ1W-TC103
CJ1W-TC104
Event code Event name
04680000 hex Cold Junction
Sensor Error
34940000 hex Setting Error
64840000 hex Sensor Error
64850000 hex CT Overflow
64860000 hex Heater Burn-
out Alarm
CJ-series ID Sensor Units
The section provides tables of the events that can occur in the following Units.
CJ1W-V680C11
CJ1W-V680C12
Event code Event name
046C0000 hex Unit Status,
Antenna
Power Sup-
ply Error
046D0000 hex Unit Status,
Memory
Error
046E0000 hex Results Infor-
mation,
Antenna
Error
046F 0000 hex Unit Status,
Unit Busy
NJ-series Troubleshooting Manual (W503)
Meaning Assumed cause
An error occurred in • Faulty connection to the cold
the cold junction junction sensor.
sensor.
• The cold junction sensor failed.
There is an illegal • The set value is incorrect.
setting.
An error occurred in • Error in input from the Sensor.
the sensor input.
An overflow • The heater current exceeded
occurred in the CT 55.0 A.
input.
A heater burnout • The power supply to the heater
occurred. is not ON.
• The heater is burned out or
deteriorated.
Meaning Assumed cause
An error occurred in • An error occurred in the power
the power supply to supply (24 V) to the Antenna.
the Antenna.
An error occurred • There is a source of noise
when reading non- nearby.
volatile memory.
• Non-volatile memory failure
An error occurred in • The Antenna is not connected.
the Antenna.
• Antenna failure
• The ID Sensor Unit failed.
An error occurred in • There is a source of noise
an ID Sensor Unit. nearby.
• The ID Sensor Unit failed.
3 Error Tables
Level
Maj Prt Min Obs Info
U S CJ-series
Temperature
Control Units
Operation
Manual for NJ-
series CPU
Unit (Cat. No.
W491)
U S Same as
above.
U S Same as
above.
U S Same as
above.
U S Same as
above.
Level
Maj Prt Min Obs Info
S CJ-series ID
Sensor Units
Operation
Manual for NJ-
series CPU
Unit (Cat. No.
Z317)
S Same as
above.
S Same as
above.
S Same as
above.
Reference
3
Reference
3-97