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Siemens alarm

25080 Positioning Monitoring

The axis did not reach its exact stop window in time at the end of a move.

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

What it means

The axis did not reach its exact stop window in time at the end of a move.

Common causes

  • Mechanical friction or backlash
  • Tuning
  • Clamp or brake not releasing

What to check first

  1. Note the axis
  2. Check clamps and lube

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

A tech can measure backlash and tune the axis.

Repair companies that work on Siemens

See all Siemens repair

Quick answers

What does Siemens alarm 25080 mean?

The axis did not reach its exact stop window in time at the end of a move.

What causes Siemens alarm 25080?

Mechanical friction or backlash. Tuning. Clamp or brake not releasing.

How do I fix Siemens alarm 25080?

Note the axis. Check clamps and lube. A tech can measure backlash and tune the axis.

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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