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Siemens alarm

25050 Contour Monitoring

The axis did not follow its path closely enough while moving (following error too large).

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

What it means

The axis did not follow its path closely enough while moving (following error too large).

Common causes

  • Mechanical binding
  • Lube problem
  • Drive or motor fault
  • Tuning or acceleration set too high

What to check first

  1. Jog slowly and watch load
  2. Check lube
  3. Note feed and location

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 if load is high or it follows a crash.

Repair companies that work on Siemens

See all Siemens repair

Quick answers

What does Siemens alarm 25050 mean?

The axis did not follow its path closely enough while moving (following error too large).

What causes Siemens alarm 25050?

Mechanical binding. Lube problem. Drive or motor fault. Tuning or acceleration set too high.

How do I fix Siemens alarm 25050?

Jog slowly and watch load. Check lube. Note feed and location. Call a tech if load is high or it follows a crash.

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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