FANUC Spindle Module Alarms, Errors, and Faults

[zigmund]

FANUC Alpha Spindle Module Error, Fault, Alarm List

Here is a list and related description specifically for the spindle modules. Some of these spindle module faults are very rare. This list should be complete, if anyone sees any errors or alarms missing, just speak up. Sometimes I miss a single alarm code, or even a certain group of errors. Here it is:

• 01 - The inside temperature of the motor is higher than the specified temperature
  
  
• 02 - The actual motor speed is largely deviated from the commanded speed
  
  
• 03 - The fuse of the DC link has blown (The voltage at the DC link is insufficient) This alarm is checked when emergency stop is cancelled.
  
  
• 06 -  The temperature sensor is abnormal, or the temperature sensor cable is broken.
  
  
• 07 - The motor rotates at a speed exceeding 115% (standard setting) of the maximum allowable speed.
  
  
• 09 - The temperature of the heat sink of the SPM main circuit has risen abnormally. This alarm is issued for SPM-15i and later with SPM-2.2i to SPM-11i however, Alarm 12 is issued for the same cause.
  
  
• 12 - An excessively large current flowed into the DC link of the main circuit.
  
  
• 15 - In output switching control or spindle switching control, the switching operation sequence was not executed correctly.  This is issued if one second or more elapses from the transition of a switch request signal (SPSL or RSL) until a power lead state check signal (MCFN, MFNHG, RCH or RCHHG) makes a transition.
  
  
• 18 - A sum check is abnormal.  If this alarm is issued, replace the SPM or SPM control printed-circuit board.
  
  
• 19 - The offset voltage of the phase U (19) or phase V (20) current detection circuit is excessively high. A check is made when the power is turned on.
  
  
• 20 - The offset voltage of the phase U (19) or phase V (20) current detection circuit is excessively high. A check is made when the power is turned on.
  
  
• 21 - The specified polarity of the position sensor is incorrect.
  
  
• 24 - Serial communication data transferred between the CNC and spindle amplifier module contains an error.
  
  
• 27 - The signal of the position code is disconnected.
  
  
• 29 - An excessive load (standard setting: load meter reading of 9 V) has been applied continuously for a certain period (standard setting: 30 seconds).
  
  
• 31 - The motor failed to rotate as specified, and has stopped or is rotating at a very low speed.
  
  
• 36 - The error counter overflowed.
  
  
• 37 - After emergency stop signal input, the motor is accelerated without being decelerated. This alarm is issued also when the motor is not deactivated (the motor is not decelerated completely) when the acceleration/deceleration time (initial parameter setting: 10 seconds) has elapsed after emergency stop signal input.
  
  
• 41 - The position where the one-rotation signal of the position coder is generated is incorrect.
  
  
• 42 - The one-rotation signal of the position coder is not generated.
  
  
• 46 - The one-rotation signal of the position coder cannot be detected normally during thread cutting.
  
  
• 47 - The count value of position coder signal pulses is abnormal. Phases A and B for the position coder have a feedback pulse count of 4096 p/rev per spindle rotation. The SPM checks the pulse counts of phases A and B equivalent to the position coder each time a one-rotation signal is generated. The alarm is issued when a pulse count beyond the specified range is detected.
  
  
• 50 - A value obtained by internal calculation in spindle synchronization exceeded the allowable range.
  
  
• 52 -  The synchronization signal (ITP) in communication data transferred to and from the CNC stopped.
  
  
• 53 -  The synchronization signal (ITP) in communication data transferred to and from the CNC stopped.
  
  
• 54 -  A large current flowing in the motor for a long time was detected.
  
  
• 55 -  In spindle switching control or output switching control, a mismatch between the switching request signal (SPSL or RSL) and the power lead state check signal (MCFN, MFNHG, RCH, or RCHHG) continues during motor activation.
  
  
• 56 - The cooling fan for the control circuit section has stopped.
  
  
• 66 - An error occurred during communication (connector JX4) between spindle and amplifier.
  
  
• 69 - This alarm can be issued only when Dual Check Safety is in use. The alarm occurs if, in safety signal mode C, the spindle motor rotation speed exceeds the safety speed.
  
  
• 70 - This alarm can be issued only when Dual Check Safety is in use. The spindle amplifier connection status does not match the hardware setting.
  
  
• 71 - This alarm can be issued only when Dual Check Safety is in use. A safety parameter error occurred.
  
  
• 72 - This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier speed check does not match the result of the CNC check.
  
  
• 73 - The signal of the motor sensor is disconnected.
  
  
• 74 - This alarm can be issued only when Dual Check Safety is in use. The CPU test failed to end normally
  
  
• 75 - This alarm can be issued only when Dual Check Safety is in use. An error occurred in the CRC test.
  
  
• 76 - This alarm can be issued only when Dual Check Safety is in use. The spindle safety function has not been executed.
  
  
• 77 - This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier axis number check does not match the result of the CNC axis number check.
  
  
• 78 - This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier safety parameter check does not match the result of the CNC safety parameter check.
  
  
• 79 - This alarm can be issued only when Dual Check Safety is in use. An abnormal operation was detected in the initial test.
  
  
• 81 - The position where the one-rotation signal of the motor sensor is generated is incorrect.
  
  
• 82 - The one-rotation signal of the motor sensor is not generated.
  
  
• 83 - The SPM checks the pulse counts of phases A and B each time a one-rotation signal is generated. The alarm is issued when a pulse count beyond the specified range is detected.
  
  
• 84 - The spindle sensor signal was disconnected.
  
  
• 85 - The one-rotation signal of the spindle sensor occurred in an incorrect location.
  
  
• 86 - No spindle sensor one-rotation signal occurred.
  
  
• 87 - A spindle sensor signal is abnormal.
  
  
• 88 - The heat sink cooling fan is not running.
  
  
• A - The control program is not running. An error was detected when the control program was running.
  
  
• A1 - The control program is not running. An error was detected when the control program was running.
  
  
• A2 - The control program is not running. An error was detected when the control program was running.
  
  
• b0 - An error occurred in communication between amplifier modules (SPM, SVM and PSM).
  
  
• C0 - An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• C1 - An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• C2 - An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• C3 - In spindle switching a mismatch is found between the switching request signal (SPSL) and the internal status of the motor/spindle sensor signal switching circuit (submodule SW).
  
  

[zigmund]

I transposed these Fanuc spindle errors into Q&A style. Not sure if this is any more beneficial than the spindle fault list, but here it is anyway:

• Q: What does Fanuc Spindle Alarm code 01 mean? A:  The inside temperature of the motor is higher than the specified temperature
  
  
• Q: What does Fanuc Spindle Alarm code 02 mean? A:  The actual motor speed is largely deviated from the commanded speed
  
  
• Q: What does Fanuc Spindle Alarm code 03 mean? A:  The fuse of the DC link has blown (The voltage at the DC link is insufficient) This alarm is checked when emergency stop is cancelled.
  
  
• Q: What does Fanuc Spindle Alarm code 06 mean? A:  The temperature sensor is abnormal, or the temperature sensor cable is broken.
  
  
• Q: What does Fanuc Spindle Alarm code 07 mean? A:  The motor rotates at a speed exceeding 115% (standard setting) of the maximum allowable speed.
  
  
• Q: What does Fanuc Spindle Alarm code 09 mean? A:  The temperature of the heat sink of the SPM main circuit has risen abnormally. This alarm is issued for SPM-15i and later with SPM-2.2i to SPM-11i however, Alarm 12 is issued for the same cause.
  
  
• Q: What does Fanuc Spindle Alarm code 12 mean? A:  An excessively large current flowed into the DC link of the main circuit.
  
  
• Q: What does Fanuc Spindle Alarm code 15 mean? A:  In output switching control or spindle switching control, the switching operation sequence was not executed correctly.  This is issued if one second or more elapses from the transition of a switch request signal (SPSL or RSL) until a power lead state check signal (MCFN, MFNHG, RCH or RCHHG) makes a transition.
  
  
• Q: What does Fanuc Spindle Alarm code 18 mean? A:  A sum check is abnormal.  If this alarm is issued, replace the SPM or SPM control printed-circuit board.
  
  
• Q: What does Fanuc Spindle Alarm code 19 mean? A:  The offset voltage of the phase U (19) or phase V (20) current detection circuit is excessively high. A check is made when the power is turned on.
  
  
• Q: What does Fanuc Spindle Alarm code 20 mean? A:  The offset voltage of the phase U (19) or phase V (20) current detection circuit is excessively high. A check is made when the power is turned on.
  
  
• Q: What does Fanuc Spindle Alarm code 21 mean? A:  The specified polarity of the position sensor is incorrect.
  
  
• What does Fanuc Spindle Alarm code 24 mean? A:  Serial communication data transferred between the CNC and spindle amplifier module contains an error.
  
  
• Q: What does Fanuc Spindle Alarm code 27 mean? A:  The signal of the position code is disconnected.
  
  
• Q: What does Fanuc Spindle Alarm code 29 mean? A:  An excessive load (standard setting: load meter reading of 9 V) has been applied continuously for a certain period (standard setting: 30 seconds).
  
  
• Q: What does Fanuc Spindle Alarm code 31 mean? A:  The motor failed to rotate as specified, and has stopped or is rotating at a very low speed.
  
  
• Q: What does Fanuc Spindle Alarm code 36 mean? A:  The error counter overflowed.
  
  
• Q: What does Fanuc Spindle Alarm code 37 mean? A:  After emergency stop signal input, the motor is accelerated without being decelerated. This alarm is issued also when the motor is not deactivated (the motor is not decelerated completely) when the acceleration/deceleration time (initial parameter setting: 10 seconds) has elapsed after emergency stop signal input.
  
  
• Q: What does Fanuc Spindle Alarm code 41 mean? A:  The position where the one-rotation signal of the position coder is generated is incorrect.
  
  
• Q: What does Fanuc Spindle Alarm code 42 mean? A:  The one-rotation signal of the position coder is not generated.
  
  
• Q: What does Fanuc Spindle Alarm code 46 mean? A:  The one-rotation signal of the position coder cannot be detected normally during thread cutting.
  
  
• Q: What does Fanuc Spindle Alarm code 47 mean? A:  The count value of position coder signal pulses is abnormal. Phases A and B for the position coder have a feedback pulse count of 4096 p/rev per spindle rotation. The SPM checks the pulse counts of phases A and B equivalent to the position coder each time a one-rotation signal is generated. The alarm is issued when a pulse count beyond the specified range is detected.
  
  
• Q: What does Fanuc Spindle Alarm code 50 mean? A:  A value obtained by internal calculation in spindle synchronization exceeded the allowable range.
  
  
• Q: What does Fanuc Spindle Alarm code 52 mean? A:  The synchronization signal (ITP) in communication data transferred to and from the CNC stopped.
  
  
• What does Fanuc Spindle Alarm code 53 mean? A:  The synchronization signal (ITP) in communication data transferred to and from the CNC stopped.
  
  
• Q: What does Fanuc Spindle Alarm code 54 mean? A:  A large current flowing in the motor for a long time was detected.
  
  
• Q: What does Fanuc Spindle Alarm code 55 mean? A:  In spindle switching control or output switching control, a mismatch between the switching request signal (SPSL or RSL) and the power lead state check signal (MCFN, MFNHG, RCH, or RCHHG) continues during motor activation.
  
  
• Q: What does Fanuc Spindle Alarm code 56 mean? A:  The cooling fan for the control circuit section has stopped.
  
  
• Q: What does Fanuc Spindle Alarm code 66 mean? A:  An error occurred during communication (connector JX4) between spindle and amplifier.
  
  
• Q:What does Fanuc Spindle Alarm code 69 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The alarm occurs if, in safety signal mode C, the spindle motor rotation speed exceeds the safety speed.
  
  
• Q: What does Fanuc Spindle Alarm code 70 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The spindle amplifier connection status does not match the hardware setting.
  
  
• Q: What does Fanuc Spindle Alarm code 71 mean? A:  This alarm can be issued only when Dual Check Safety is in use. A safety parameter error occurred.
  
  
• Q:What does Fanuc Spindle Alarm code 72 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier speed check does not match the result of the CNC check.
  
  
• Q: What does Fanuc Spindle Alarm code 73 mean? A:  The signal of the motor sensor is disconnected.
  
  
• Q: What does Fanuc Spindle Alarm code 74 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The CPU test failed to end normally
  
  
• Q: What does Fanuc Spindle Alarm code 75 mean? A:  This alarm can be issued only when Dual Check Safety is in use. An error occurred in the CRC test.
  
  
• Q: What does Fanuc Spindle Alarm code 76 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The spindle safety function has not been executed.
  
  
• Q: What does Fanuc Spindle Alarm code 77 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier axis number check does not match the result of the CNC axis number check.
  
  
• Q: What does Fanuc Spindle Alarm code 78 mean? A:  This alarm can be issued only when Dual Check Safety is in use. The result of the spindle amplifier safety parameter check does not match the result of the CNC safety parameter check.
  
  
• Q: What does Fanuc Spindle Alarm code 79 mean? A:  This alarm can be issued only when Dual Check Safety is in use. An abnormal operation was detected in the initial test.
  
  
• Q: What does Fanuc Spindle Alarm code 81 mean? A:  The position where the one-rotation signal of the motor sensor is generated is incorrect.
  
  
• Q: What does Fanuc Spindle Alarm code 82 mean? A:  The one-rotation signal of the motor sensor is not generated.
  
  
• Q: What does Fanuc Spindle Alarm code 83 mean? A:  The SPM checks the pulse counts of phases A and B each time a one-rotation signal is generated. The alarm is issued when a pulse count beyond the specified range is detected.
  
  
• Q: What does Fanuc Spindle Alarm code 84 mean? A:  The spindle sensor signal was disconnected.
  
  
• Q:What does Fanuc Spindle Alarm code 85 mean? A:  The one-rotation signal of the spindle sensor occurred in an incorrect location.
  
  
• Q: What does Fanuc Spindle Alarm code 86 mean? A:  No spindle sensor one-rotation signal occurred.
  
  
• Q: What does Fanuc Spindle Alarm code 87 mean? A:  A spindle sensor signal is abnormal.
  
  
• Q: What does Fanuc Spindle Alarm code 88 mean? A:  The heat sink cooling fan is not running.
  
  
• Q: What does Fanuc Spindle Alarm code A mean? A:  The control program is not running. An error was detected when the control program was running.
  
  
• Q: What does Fanuc Spindle Alarm code A1 mean? A:  The control program is not running. An error was detected when the control program was running.
  
  
• Q: What does Fanuc Spindle Alarm code A2 mean? A:  The control program is not running. An error was detected when the control program was running.
  
  
• What does Fanuc Spindle Alarm code b0 mean? A:  An error occurred in communication between amplifier modules (SPM, SVM and PSM).
  
  
• Q: What does Fanuc Spindle Alarm code C0 mean? A:  An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• Q: What does Fanuc Spindle Alarm code C1 mean? A:  An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• Q: What does Fanuc Spindle Alarm code C2 mean? A:  An error occurred in serial communication data between the CNC and spindle amplifier module.
  
  
• Q: What does Fanuc Spindle Alarm code C3 mean? A:  In spindle switching a mismatch is found between the switching request signal (SPSL) and the internal status of the motor/spindle sensor signal switching circuit (submodule SW).
  
  

[benklassne]

Looks good! "FANUC Spindle Faults, Alarms, and Errors"