FANUC Alpha SPM Alarms

Fanuc Alpha Spindle Amplifier Module Alarm, Error Codes

Fanuc Alpha Spindle Module Alarms for SPM series: A06B-6078, A06B-6082, A06B-6088, A06B-6092, A06B-6102, A06B-6104.

Fanuc ALPHA spindle amplifier modules recieves power through two sets of power supply connections: the high powered DC bus bar and the low powered 24VDC connection. When properly powered the charge lite will light and the status display will be lite.

For normal operation the PIL LED should light green. If problems then the ALM LED or ERR LED will lite red. If ALM LED then check below for desciptions of alarm. Any further assistance call or email us.

When fitting a replacement spindle amp, make sure all screws are present on the bus bars on both the SPM and the PSM or you can get an alarm 30.

Please contact us if you need testing, a repair or an exchange part. For a full listing of all the FANUC a SPM modules that we support visit our dedicated Fanuc Alpha Spindle Amplifier Module Page. 

Alarm Code	Description of Error
–	Not Ready
0	Control Ready
1	Motor Overheat
2	Excessive Speed Error
3	Fuse on DC Link Blown
4	Input Fuse/ Power Fault
5	Power Supply Fuse Blown
7	Overspeed
8	High Voltage Power Input
9	Overheat Main Circuit
10	Low voltage Input Power
11	Overvoltage in Power Circuit
12	Overcurrent in Power Circuit
13	Data Memory Fault CPU
15	SP Switch Control Alarm
16	RAM Fault
18	Suncheck Error PGM Data
19	EX Offset Current U
20	EX Offset Current V
24	Serial Transfer Error
25	Serial Transfer Stop
26	Disconnect C Velocity Detect
27	Pulsecoder Disconnected
28	Disconnnect C-Pos Detect
29	Shorttime overload
30	Overcurrent
31	Motor Lock or V Sig Lost
32	Ram Fault Serial LSI
33	Shortage Power Charge
34	Parameter Setting
35	Ex Setting Gear
36	Overflow Error Counter
37	Speed Detect Par. Error
39	1-Rot Cs Signal Detect
40	No 1 Rot Cs Signal Detect
41	1-Rot Position Coder Error
42	No 1 Rot. Position Coder Detect
43	Disconnect PC for Dif SP Mod
44	Control Circuit (AD) Error
46	Screw 1-Rot Position Coder Alarm
47	Position Coder Signal Abnormal
49	High Conv. Diff. Speed
50	Spindle Control Over Speed
51	Low Voltage DC Link
52	ITP Signal Abnormal 1
53	ITP Signal Abnormal 2
56	Inner Cooling Fan Stop
57	Ex Deceleration Power
58	Overload in PSM
59	Cooling Fan Stopped in PSM
66	Communication Alarm between Spindle and Amplifier
69	Safety Speed Exceeded
70	Abnormal Axis Data
71	Abnormal Safety Parameter
72	Motor Speed Mismatch
73	Motor Sensor Disconnected
74	CPU Test Alarm
75	CRC Test Alarm
76	Safety Function Not Executed
77	Axis Number Mismatch
78	Safety Parameter Mismatch
79	Abnormal Initial Test Operation
81	Motor Sensor one-rotation signal detection error
82	Motor Sensor one-rotation signal not detected
83	Motor Sensor Signal Error
84	Spindle Sensor Disconnected
85	Spindle Sensor one-rotation signal detection error
86	Spindle Sensor one-rotation signal not detected
87	Spindle Sensor Signal Error
88	Cooling Fan on the radiator stopped

Certain Spindle amplifier alarms occur becuase of issues related to the power supply module. The Fanuc spindle amplifier module alarms listed below are caused by the power supply module.