Yaskawa FSP Amplifier - Manual (Page 283)

FSP Amplifier User’s Manual Chapter 9: Inspection, Maintenance, and Troubleshooting
9-18
„ A.74: Overload of Surge Current Limit Resistor
Display and Outputs
Alarm Outputs
Alarm Code Output
ALO1 ALO2 ALO3
ALM Output
ON ON ON OFF
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
When the circuit
power is turned
ON or OFF
At power ON. A B
Cause of the Problem Solution
A
Frequently turning the main
circuit power ON/OFF.
Do not repeatedly turn
ON/OFF the main circuit
power.
B Defective circuit board (1PWB). Replace servo amplifier.