KFAS: Fanuc CNC Parts & Repair
Fanuc Series 0TA/ 0MA Troubleshooting Information/ Procedures/ Alarms
Fanuc 0TA/ 0MA Maintenance Manual: B-55255E
Fanuc 0MA Operator's Manual: B-55264E
Fanuc
0TA Operator's Manual: B-55254E
Determining Program Memory Size
Alarm List and Description
Absolute Pulse Coder (APC) Alarms: Alarm 3n0 through 3n7 (n = 1 - 8)
Troubleshooting Steps
Alarm 3n0 (n = 1 to 8): Request for reference position return
Alarm 3n1 to 3n6: Absolute Pulse Coder is faulty
Alarm 3n7, 3n8: Absolute Pulse Coder Battery is low
Alarm
3n9: Serial Pulse Coder is abnormal
Servo Alarms: Alarm 400 through 495
Alarm 408: Serial Spindle link does not start normally
Alarm 409: Serial Spindle Alarm
Over travel Alarms 5n0 through 5n5, 520, 590, 591, 592, 593
System Alarm: 910 through 916, 920, 921, 922, 930, 940, 941, 945, 946, 950, 960, 998
Alarm 910 to 916: RAM Parity Error
Alarm 920, 921, 922: Watch dog alarm or RAM parity alarm
Alarm 941: Incorrectly installed Memory Printed Circuit Board
Alarm 945: Serial Spindle communication Error
Reader/Puncher RS232 interface alarm: Alarm 85 to 87
Check RS232 related parameter settings
Master Board
A16B-1010-0150
I/O Board
A16B-1210-0820
A16B-1210-0591
A16B-1210-0590
A20B-1001-0730
A16B-1210-0800 Graphics PCB
A16B-1210-0801 MPG Interface
A16B-1210-0810 PMC-M
A16B-1210-0819 PMC-M
A02B-0083-C110 ROM Cassette
A86L-0001-0125 Keyboard
A20B-1001-0720 Softkey
A98L-0001-0518/T Keysheet
A98L-0001-0518/M Keysheet
A98L-0001-0519 Softkey cover
A61L-0001-0092 CRT 9"
Power Supply
A16B-1211-0850
A16B-1210-0510
