Omron XTRADRIVE User Manual page 257

XtraDrive User Manual
!
A.41: Main Circuit DC Voltage Error Detected:
Undervoltage
Display and Outputs
ALO1
OFF
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
During servomotor
A
B
C
D
!
A.51: Overspeed
Display and Outputs
ALO1
ON
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
When Servo ON (S-ON)
signal is turned ON.
Chapter 9: Inspection, Maintenance, and Troubleshooting
Alarm Outputs
Alarm Code Output
ALO2
OFF
operation.
When main circuit
power is turned
ON.
Cause of the Problem
The power supply voltage
exceeds specified range.
Fuse blown.
Defective rectifying diode.
Defective servo amplifier.
Alarm Outputs
Alarm Code Output
ALO2
OFF
During high-speed
servomotor rotation
after a reference
input.
9-9
ALM Output
ALO3
ON OFF
When the control
A, B, C
power is turned ON.
A, B, C
Solution
Check power supply voltage.
Replace servo amplifier.
ALM Output
ALO3
ON OFF
A
At power ON.
B, C
D
D