Fanuc ALPHA servo alarm 6 is b !
Alarm 6 is actually b on Fanuc servo amplifier modules
Any Fanuc servo amplifier (ALPHA) that has a 6 alarm is actually an ALARM b which indicates high current or short circuit in the amplifier, motor, axis card or cables, or mechanical obstruction. This alarm seems to present more readily on dual and triple axis servo amplifier modules. Though no reason as a 6 or b it does not list on single channel drives.
Alarm b signifies an internal failure of the servo amplifier circuit. Quite a common fault on SVM and SVU drives from the ALPHA series.
CNC Tip: Please don’t confuse the Alarm b with the b. or B. fault which is a completely different alarm and can be caused by a multitude of different issues.
We can test amplifiers, motors and dependent on the system the axis cards also. We also supply servo drives, motors and system axis cards.
We always recommend using the services of a trained CNC service engineer whom has the electronic and mechanical knowledge to deal with the Fanuc side of your machine tool.
The alarms above cover 6079, 6089, 6090, 6096 and 6097; in some cases later aiSV modules.
Common drives that suffer with these alarms are: A06B-6079-H206, A06B-6079-H208, A06B-6096-H201, A06B-6096-H206, A06B-6096-H208.
- Exchange -> Emergency breakdowns; swap the bad for the good immediately. Order Monday to Friday 9am to 4.30PM to ship same day!
- Repair -> Save money avoid paying deposit, keeping your own unit with known history. Current clean, inspect, repair and test turnaround 24-48 hours (normal).
- Surplus -> Either for stock critical parts or for drives that are not repairable or exchangeable due to burn outs, corrosion, etc.
Contact us +1(434)971-1394 for more information on Fanuc servo amplifier modules and the alarm 6 or b or any alarms on the ALPHA modules or Fanuc drives.