Omron XTRADRIVE

XtraDrive User Manual Chapter 9 : Inspection, Maintenance, and Troubleshooting
9-18
! A.C2: Commutation (Phase Finding) 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).
Status and Remedy for Alarm
- A, B ,C
Cause of the Problem Solution
A Motor parameters are faulty
Ask your local distributor for a new
parameters file.
B
The initial value of Pn191.0 (phase
order) is not correct
Set Pn191.0 to 0. (The XtraDrive will
automatically find the right phase order
and update this parameter value).
C
Undesired motor motion was
detected when the motor was turned
on for the first time after power-up
Before turning servo on, be sure that
there is no mechanical
movements/vibrations
! A.C8: Absolute Encoder Clear Error and Multi-turn
Limit Setting 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.
When resetting the
multi-tum clear
encoder alarm.
A, B
A, B
Cause of the Problem Solution
A Encoder defective. Replace servomotor.
B Servo amplifier defective. Replace servo amplifier.
At first motor on
sequence after power-
up, using motor with
A quad B encoder