Omron XTRADRIVE

XtraDrive User Manual Chapter 9 : Inspection, Maintenance, and Troubleshooting
9-20
! A.Cb: Encoder Echoback Error
Display and Outputs
Alarm Outputs
Alarm Code Output
ALO1 ALO2 ALO3
ALM Output
ON OFF ON OFF
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
At power ON. A, B
Cause of the Problem Solution
A
Incorrect or disconnected
encoder wiring.
Check wiring and connectors
at encoder.
B Defective encoder. Replace servomotor.
C Defective servo amplifier. Replace servo amplifier.
! A.CC: Multi-turn Limit Disagreement Alarm
Display and Outputs
Alarm Outputs
Alarm Code Output
ALO1 ALO2 ALO3
ALM Output
ON OFF ON OFF
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
At power ON. A, B
Cause of the Problem Solution
A
Incorrectly set Multi-Turn Limit
Setting parameter (Pn205) in the
servo amplifier.
Change the value in parameter Pn205.
B
No Multi-Turn Limit value set in the
encoder.
First verify that the Multi-Turn Limit
Setting parameter (Pn205) is set
correctly in the servo amplifier. While in
the active alarm state, change the
setting in the encoder Multi-Turn Limit
Setting parameter (Pn205) using
function Fn013.