Omron XTRADRIVE User Manual page 258

XtraDrive User Manual
A Incorrect servomotor wiring.
Position or speed reference input is too
B
large.
C Incorrect reference input gain settings.
D Defective circuit board (1PWB).
!
A.71, A.72
A.71: Overload: High Load
A.72: Overload: Low Load.
The alarm output, status, and remedy for A.71 are the same as for A.72.
Display and Outputs
ALO1
ON
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
W hen Servo ON (S-ON)
signal is turned ON.
W hen speed reference is
entered.
A
B
C
Chapter 9: Inspection, Maintenance, and Troubleshooting
Cause of the Problem
Alarm Outputs
Alarm Code Output
ALO2
ON
No sevomotor
rotation.
During servomotor
operation.
Cause of the Problem
Incorrect or disconnected servomotor
wiring.
Load greatly exceeds rated torque.
Defective circuit board (1PWB).
9-10
Check and correct wiring.
(Check for U-, V-, and W-phase
wiring errors.)
Lower the reference input
values.
Check and correct parameter
settings.
Replace servo amplifier.
ALM Output
ALO3
ON OFF
A
At power ON.
B
B
Check wiring and connectors at
the servomotor.
Reduce load torque and inertia.
Otherwise, replace with a larger
capacity servomotor.
Replace servo amplifier.
Solution
C
Solution