my lb-10 has a Fanuc A06B-6055-H208 drive with top pcb type A20B-1001-0120.

it seems close to a fanuc model 8 drive but it dosn't have some of the pins the manual refers to.

specificaly I need to test the top drive board after an alarm 12. I have replaced the shorted IGBT module and need to check the drive circuit.

I removed fuse F7 from the lower board but don't want to proceed untill I have clarified this bit of the manual since my board dosn't have the ARS pin

"When F7 is removed, alarm No. 3 occurs. Short check terminals "ARS" and OV using a clip or the like. After observation, detach the clip without fail."

I think i can still check the drive circuit via voltage just not the wave form.

can anyone shed some light on the test procedure?

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