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Siemens alarm

25201 Drive Fault

The drive for an axis reported a fault.

Stops the machineSiemens SINUMERIK 840D sl, 828D and 840D powerline

What it means

The drive for an axis reported a fault. The detailed fault code is in the drive diagnostics.

Common causes

  • Overcurrent
  • Motor or cable short
  • Drive hardware problem
  • Supply problem

What to check first

  1. Read the drive fault number in the diagnostics
  2. Check motor cables

Lock out the machine before reaching into it. Never bypass a door switch or interlock to clear an alarm.

When to call a repair tech

Call a tech with the drive fault number.

Repair companies that work on Siemens

See all Siemens repair

Quick answers

What does Siemens alarm 25201 mean?

The drive for an axis reported a fault. The detailed fault code is in the drive diagnostics.

What causes Siemens alarm 25201?

Overcurrent. Motor or cable short. Drive hardware problem. Supply problem.

How do I fix Siemens alarm 25201?

Read the drive fault number in the diagnostics. Check motor cables. Call a tech with the drive fault number.

Alarm numbers and text can differ by control model, software version and machine builder. This page is a starting point from people who have worked on these machines, not a replacement for your machine builder's manual.

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