Siemens alarm 21610: [Channel 1: ] Axis %2 encoder %3 frequency exceeded

What it means

The position-feedback signal frequency exceeded the limit configured in MD36300 $MA_ENC_FREQ_LIMIT for the currently active encoder, so the reference of actual values to the slide position may have been lost. Typical at very high rapid speeds or when an incremental scale runs beyond its rated input frequency.

Likely causes

• Traverse speed above encoder maximum input frequency
• Wrong MD36300 setting for the fitted encoder
• Degraded encoder signal quality from interference

Replacement parts

We supply the following units for this alarm — tested, warranty-backed:

• incremental encoder / linear scale per machine spare list

  encoder · Check if others ruled out

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