Hi
I need emergency help to solve a fault in FANUC 0MF
The problem: ALARM 401 + VRDY OFF (no more alarms)
1. INTERFACE CABLE JX1B-JX1A = OK
2. TERMINATING DUMMY CONNECTOR = OK
3. X021.4=1 G121.4 G230.1 *ESP *ESPA SIGNALS OK
4. EM. STOP SIGNAL IN THE PSM CONNECTOR CX4=OK
5. THE EM STOP SIGNAL LINE (PIN 3 OF CONNECTOR CX2A CX2B BETWEEN THE PSM SVM AND SPM OK (24V)
6. I CHECK MCON SIGNALS TO ALL AXES :THE LEVEL SIGNALS GO FROM HIGH TO LOW FOR 2 SEC AND GO BACK TO HIGH
7. I CHECK THE MCCOFF PIN 7 IN OUT OF SVM ITS GO TO LOW ALSO FOR 2 SEC
8. I CHECK THE MCCOFF PIN 7 IN THE INPUT OF PSM THIS SIGNAL GO TO LOW LEVEL
9. THE READ RELAY CONTACT ( IN PSM CONNECTOR CX3) Completely NOT WORK (Not work even for a second)
(And therefore main contactor not working )
(PSM replaced
Axes card replaced)
Please what should I check to solve the problem ?
Thanks
David Relevi [email protected]
PSM:A06B -6077-H111A
SPM:A06B-6078-H211 #500
Y Z AMP: A06B-6079-H206A
X AMP :A06B -6079-H103A
VERTICAL MACHINING CENTER
MODEL: MCV-610CR
SERIAL NO:LISIE0127
MFG DATE :JUL. 1995
CNC UNIT
MODEL :FANUC-0MF
MFG NO:T95420136