Advertisement
Sigma II User's Manual
n
A.51
A.51: Overspeed
Display and Outputs
Status and Remedy for Alarm
When Servo ON (S-ON)
signal is turned ON.
A
Incorrect servomotor wiring.
Position or speed reference input is
B
too large.
Incorrect reference input gain set-
C
tings.
D
Defective circuit board (1PWB).
Alarm Outputs
Alarm Code Output
ALO1
ALO2
ON
OFF
Note:
OFF:
Output transistor is OFF (alarm state).
ON:
Output transistor is ON.
During high-speed
servomotor rotation
after a reference input.
Cause of the Problem
Chapter 9: Inspection, Maintenance, and Troubleshooting
ALM Output
ALO3
ON
OFF
At power ON.
A
B, C
Solution
Check and correct wiring. (Check for
U-, V-, and W-phase wiring errors.)
Lower the reference input values.
Check and correct parameter set-
tings.
Replace servo amplifier.
9-13
D
Advertisement
