KFAS: Fanuc CNC Parts, Service, & Repair

Fanuc ALARM SV0043 SP9216 aiPS-B AL-28

Alarm SV0043 and SP9216 on Fanuc 0iF or 31iB and AL-28 on aiPS-B means,
connection error in the power failure backup module
Cause and troubleshooting
(a) Check if more than eight PFB-Rs are connected.
(b) Check if more than two PFB-Cs are connected.
(c) Check if more than 15 slaves for communication between the amplifiers are connected.
(d) Check the connection order of PFB-Rs and PFB-Cs.
(e) Check whether PFB-Rs or PFB-Cs in the power supply voltage series that are different from
the αiPS-B are connected.
(f) PFB-R or PFB-C communication error between the amplifiers Check the connector and cable
(CXA2A, CXA2B).

When multiple PFB-Rs are connected, check the connector and cable (CXA2A, CX55).

- Replace the Power Supply Module.

A06B6200 aiPS-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

This alarm is applicable for the following units

A06B-6200-H003 αiPS 3-B
A06B-6200-H008 αiPS 7.5-B
A06B-6200-H011 αiPS 11-B
A06B-6200-H015 αiPS 15-B
A06B-6200-H026 αiPS 26-B
A06B-6200-H030 αiPS 30-B
A06B-6200-H037 αiPS 37-B
A06B-6200-H055 αiPS 55-B

A06B-6202-H003 αiPS 3-B
A06B-6202-H008 αiPS 7.5-B
A06B-6202-H011 αiPS 11-B
A06B-6202-H015 αiPS 15-B
A06B-6202-H026 αiPS 26-B
A06B-6202-H030 αiPS 30-B
A06B-6202-H037 αiPS 37-B
A06B-6202-H055 αiPS 55-B

Fanuc CNC Alarm App for your smart phone

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