Omron OMNUC W Series Manual page 236

A.96
A.96: Communications Warning
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF ON
Note OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
During DeviceNet
communications
Cause
A Cable and connector contact is faulty.
B Malfunction due to noise.
A.98
A.98: Main Power OFF
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF OFF
Note OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
When main power supply
OFF
Cause
A Power supply cable and the connector con-
tact is faulty.
B
Power Supply Unit is defective.
9-25
9.3 Troubleshooting with Alarm Displays
ALM Output
ALO3
ON ON
A, B
Correct the connector wiring.
Take noise prevention measures.
ALM Output
ALO3
OFF ON
A, B
Correct the connector wiring
Check the Power Supply Unit.
Remedy
Remedy
.
9