Problem- PROBLEM IN FANUC 18T-A NAKAMURA 20 II

[Dragonbikes]

Controller will not power up, therefore no CRT display. Power supply is on with no alarms, but on the main board LED's the top row is green in all 4 banks with 1 red light in the second bank of the bottom row.

LED's on main board do NOT come on when power is supplied at breaker (only come on when the power on button is pressed). The only LED that comes on is the single green light on the power supply itself.

Main board #is A16B-2201-008


THANK YOU FOR ANY INFORMATION THAT HELPS ME TO LEAVE TO THIS PROBLEM.

THANK YOU

ROMMEL ROJAS

[Dragonbikes]

[IMG][/IMG]

[yours_prabhat]

Originally Posted by Dragonbikes Controller will not power up, therefore no CRT display. Power supply is on with no alarms, but on the main board LED's the top row is green in all 4 banks with 1 red light in the second bank of the bottom row. LED's on main board do NOT come on when power is supplied at breaker (only come on when the power on button is pressed). The only LED that comes on is the single green light on the power supply itself. Main board #is A16B-2201-008 THANK YOU FOR ANY INFORMATION THAT HELPS ME TO LEAVE TO THIS PROBLEM. THANK YOU ROMMEL ROJAS

Please mail me the complete problem of the machines and your contact number i will help you
Regards
Prabhat Mishra
+919430737981
prabhatmishra@mail.com

[fanucman]

power supply is probably bad.. swap with another machines if you have one.. just be careful because if your not fast enough you WILL LOOSE MEMORY..

[hrh]

The CPU is stopped or interrupted.

Maybe servo control module or PMC module (Located on the "MAIN" unit)

[Dragonbikes]

thank you for their answer
I will get the parts to tests
if person has some other opinion?
Rommel.