Advertisement
Sigma II User's Manual
n
A.C1
A.C1: Servo Overrun
Display and Outputs
Status and Remedy for Alarm
At power ON.
When parameter
Pn50A.1 = 7.
Within 1 to 3s after
power is turned ON.
When parameter
Pn50A.1 ≠ 7.
Incorrect or disconnected servomotor
A
wiring.
Incorrect or disconnected encoder
B
wiring.
C
Defective encoder.
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.
D
A, B, C, D
Cause of the Problem
Chapter 9: Inspection, Maintenance, and Troubleshooting
ALM Output
ALO3
ON
OFF
When Servo ON (S-ON)
signal is turned ON.
When the speed reference
is entered.
Solution
Check wiring and connectors at the
servomotor.
Check wiring and connectors at the
encoder.
Replace servomotor.
Replace servo amplifier.
9-26
A, B, C, D
A, B, C
Advertisement
