LinefixedFault-code library

Fuji Machinery FW3200 fault E37: Servo drive: Power Phase Loss — meaning and fix

Independent resource, not affiliated with Fuji Machinery. Source: manufacturer documentation, p. 98.

What E37 means

Power Phase Loss.

Shown as

  • Firmware v11: shutdown, CED relay opens, motor coasts
  • Firmware v12: shutdown, motor stops

Likely causes, ranked

  1. One or more input AC phases missing; axis enabled when main 3-phase power removedmost likely

Quick checks

  • Check input AC voltage on all phases

    Expected: All phases present

Fix

Recover

  1. Disable axis before removing power
  2. Clear fault

Safety

Follow your site's lockout procedures before working on the machine. This page does not replace the manufacturer's service.

Related codes

  • E04 · Motor Overtemp
  • E05 · Drive Overcurrent (Power Fault)
  • E36 · Drive Overtemp (System Overtemperature)
  • E39 · Self Sense Fault
  • E43 · Drive Enable Fault
  • E61 · Aux Feedback AQB

Every Fuji Machinery FW3200 fault code

Help the next technician

Log what fixed it

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Put this on every machine

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Questions

What does E37 mean on a Fuji Machinery FW3200?
Power Phase Loss. Shown as: Firmware v11: shutdown, CED relay opens, motor coasts; Firmware v12: shutdown, motor stops.
What causes E37 on the Fuji Machinery FW3200?
One or more input AC phases missing; axis enabled when main 3-phase power removed (most likely).
How do I fix E37 on the Fuji Machinery FW3200?
First check: Check input AC voltage on all phases (expected: All phases present). Recover: 1) Disable axis before removing power 2) Clear fault
Is it safe to fix E37 myself?
Follow your site's lockout procedures before working on the machine. This page does not replace the manufacturer's service.

Independent resource, not affiliated with Fuji Machinery. Source: manufacturer documentation, p. 98. Structured paraphrase; no manual text is reproduced.