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  1. Home
  2. Fault Codes
  3. Fanuc αi
  4. SP9009
SP9009Spindle alarm · Spindle amplifier (SPM)Usually repairable

Fanuc αi SP9009: Main Circuit Overload/IPM Overheat

Also shown as: SPM display 09; 16i/18i/21i/0i: 9009 or 7n09

What SP9009 means

The spindle amplifier's main circuit is overloaded or its power module is overheating. Shown on the SPM as 09.

Symptoms

Alarm during long heavy cuts or on hot days.

Is it repairable?

Yes: fan and thermal repairs are routine.

Common causes

  • Failed or clogged cooling fan
  • Dirty heat sink
  • Continuous overload
  • Faulty temperature sensing

Safe checks

  1. 1Check the fans and heat sink
  2. 2Compare the spindle load with the rating

Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.

Reviewed by AutomIQ repair technicians. Code and name from the FANUC αi series Maintenance Manual.

Related Fanuc αi faults

  • SV0368Serial data error (built-in)
  • SV0401V ready off
  • SV0433DC link undervoltage
  • SV0436Soft thermal (OVC)
  • SV0438motor current alarm
  • SV0442DC link precharge failure
All 139 Fanuc αi codes

Still showing SP9009?

Fanuc amplifier showing an alarm?

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Related services: Spindle amplifier repair · Cooling fan replacement

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Fault codes
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