[Dean-R]

Hello guys.
I am looking for a bit of guidance on a problem with an A06B-6120-H045 power supply module.Sometimes when I switch on the power isolator the power supply does not switch on (no led on)..Am I right to think that if the 240v input is there the led should light up and when the control is switched on the drives should enable.If this is the case what area of the PS should I be looking at for a fault
Thanks
Dean.

[yaddatrance]

There should be two breakers feeding your power supply, one is single phase, the other is 3 phase.
Check the magnetic contactor first (sits between the 3 phase breaker switch and AC reactor).

The manual below covers the full diagnostic steps that you should try, anything past that is usually a repair of IGBT transistors or something that should be done by a service tech.

http://fanuc.pennineuk.com/library/pdf/AIMANUAL.pdf

[Dean-R]

Thanks for your help.All voltages are present.I believe the PSM is faulty and will send for repair.
Thanks again.