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Fanuc Spindle Amplifier Alarm 12

FANUC Alarm Codes >> FANUC Spindle Amplifier Alarms >> Spindle Amplifier Alarm 12

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FANUC Spindle Amplifier Alarm Code 12

Models AffectedDescriptionTroubleshooting

Fanuc 6055, 6059, 6060 digital spindle amplifiers
Fanuc 6063, 6064 serial spindle amps
Fanuc 6072, 6078, 6082, 6088, 6102 amps
Fanuc 6044, 6052 analog spindle amps
Fanuc 6111, 6112, 6116, 6141, 6142 amps

An excessively large current flowed into the DC link of the main circuit.
  1. If the alarm is issued on SPM-2.2 to SPM-11 and SPM-11HV 
    1. Check alarm code 09 as well.
  2. If this alarm is issued immediately after a spindle rotation command is specified
    1. The motor power line is faulty. Check for a short circuit between motor power lines and short-circuit to ground, and replace the power line as required.
    2. The motor winding has an insulation failure. If the motor is short-circuited to ground, replace the motor.
    3. The parameters specific to the motor are not set correctly.
    4. The SPM is faulty. A power Element may be destroyed. Replace the SPM.
  3. If this alarm is issued during spindle rotation
    1. A power element is destroyed. The power element may be destroyed. Replace the SPM.
    2. The parameters specific to the motor are not set correctly.
    3. Speed sensor signal error. Check the spindle sensor signal waveform. If an error is found, make an adjustment or replace the detector as required.

 

Relevant 6044 analog spindle amplifiers to the 12 alarm:

Relevant 6052 analog spindle amplifiers to the 12 alarm:

Relevant 6055 digital spindle amplifiers to the 12 alarm:

Relevant 6059 digital spindle amplifiers to the 12 alarm:

Relevant 6060 digital spindle amplifiers to the 12 alarm:

Relevant 6063 serial spindle amplifiers to the 12 alarm:

Relevant 6064 serial spindle amplifiers to the 12 alarm:

Relevant 6078 alpha spindle amplifiers to the 12 alarm:

Relevant 6082 alpha spindle amplifiers to the 12 alarm:

Relevant 6088 alpha spindle amplifiers to the 12 alarm:

Relevant 6102 alpha spindle amplifiers to the 12 alarm:

Relevant 6111 spindle amplifiers to the 12 alarm:

Relevant 6112 spindle amplifiers to the 12 alarm:

Relevant 6116 spindle amplifiers to the 12 alarm:

Relevant 6141 spindle amplifiers to the 12 alarm:

Relevant 6142 spindle amplifiers to the 12 alarm:


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How Tri Star CNC Can Help with FANUC Alarm Code 12

Our servo error experts at Tri Star CNC can help you troubleshoot and provide solutions for your FANUC servo amp alarms. We offer FREE phone support with REAL humans, call 815-578-9145 and we’ll walk through the servo issue with you. If you need on-site support you can check out our field service network to find a service provider near you.

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