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Fanuc Spindle Amplifier Alarm 28

FANUC Alarm Codes >> FANUC Spindle Amplifier Alarms >> Spindle Amplifier Alarm 28

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FANUC Spindle Amplifier Alarm Code 28

 

Models AffectedDescriptionTroubleshooting

Fanuc 6055, 6063, 6064 digital spindle amplifiers
Fanuc 6072, 6078, 6082, 6088, 6102 amps

The sensor signal (for position control) for Cs contour control is abnormal.

  1. When a high-resolution magnetic pulse coder is used with SPM TYPE2 (using both of the JY2 and JY5 connectors), the amplitude of sensor signal on the high-resolution side (1000 to 3000) of the high-resolution magnetic pulse coder on the JY5 side is excessively small.
  2. When SPM TYPE4 is used, the amplitude of the spindle sensor (MZ sensor) built into the motor connected to JY5 is excessively small.

Troubleshoot as in case of alarm code 26.

 

 

Relevant 6055 digital spindle amplifiers to the 28 alarm:

Relevant 6063 serial spindle amplifiers to the 28 alarm:

Relevant 6064 serial spindle amplifiers to the 28 alarm:

Relevant 6078 alpha spindle amplifiers to the 28 alarm:

Relevant 6082 alpha spindle amplifiers to the 28 alarm:

Relevant 6088 alpha spindle amplifiers to the 28 alarm:

Relevant 6102 alpha spindle amplifiers to the 28 alarm:


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How Tri Star CNC Can Help with FANUC Alarm Code 28

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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Send us your damaged FANUC parts, and our skilled technicians will check if they can be repaired. If they can't be fixed or you need a quick solution, you can order replacement parts from our exchange parts stock. All exchanged and repaired parts come with a 1-year warranty. Tri Star CNC covers the entire assembly repair, not just parts and labor.

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