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.

Spindle Alarm 11

If Alarm 7 presents on the PSM at the same time. Then high voltage on the DC bus. See Power Supply Alarms.

Spindle Alarm 30

If Alarm 1 is present on the power supply module PSM then overcurrent on the power supply voltage circuit. See PSM alarms!

Spindle Alarm 33

If Alarm 5 is present on the power supply module then PSM issue indicating: DC Link Pre Charge failure. See PSM alarms!

Spindle Alarm 51

If Alarm 4 is present on power supply module at the same time. DC bus link is low.

Spindle Alarm 59

If Alarm 2 presents on PSM in combination with AL.59 on SPM; then cooling Fan has stopped in the PSM.