Fanuc Alarm SV0659 blinking AL-7 Alarm Information by KFASLLC

KFAS: Fanuc CNC Parts, Service, & Repair

Fanuc ALARM SV0659 aiSV-B blinking AL-7

Alarm SV0659 Fanuc 0iF or 31iB and blinking AL-7 on aiSV-B means,
the SSM is abnormal.
Cause and troubleshooting
(a) Check the 24 V input voltage.
(b) Check the connection between the servo amplifier and SSM.

(c) Replace the SSM.
(d) Replace the servo amplifier.

Connection with the SSM of the αiSV-B
(1) Overview 1-axis amplifiers of the Level-up αiSV-B can connect the SSM.
By connecting the SSM, it becomes possible to drive devices, such as high-speed rotation type synchronous built-in servo motors.
For details of the SSM, see Section 10.4, "SUB MODULE SM."

A06B6240 aiSV-B B65515EN Maintenance Manual

*CAUTION: High Voltage present.
Note: Some Machine's electrical cabinet doors are equipped with "door interlock" that will cause the breaker to trip when the door is open.
See the machine's manual for information on how to bypass so that you can observe the alarm LED status

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