F248

Low battery voltage

Indramat · DIAX 04

What does F248 mean?

The DIAX04 SSE-03VRS drive has detected that the internal battery, which often maintains encoder absolute position data or retains parameters during power-off, has a critically low voltage. This condition risks losing critical configuration data or absolute position references upon power loss. It requires immediate attention to prevent data loss.

Common Causes

  • The internal battery on the DIAX04 SSE-03VRS or an attached encoder is discharged or has reached the end of its service life.
  • Poor contact or connection to the battery terminals.
  • Charging circuit for the battery (if rechargeable) is faulty.
  • Prolonged power-off periods without external power, draining the battery.
  • Incorrect battery type or specification installed.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Locate the battery on the DIAX04 SSE-03VRS drive or the associated absolute encoder. Measure its voltage with a multimeter.

  2. 2

    Replace the battery with a new, compatible battery of the correct type and specification.

  3. 3

    Verify the battery connections are clean, tight, and correctly polarized.

  4. 4

    If the battery is rechargeable, check the charging circuit functionality by measuring voltage at the battery terminals with the drive powered on.

  5. 5

    After replacing the battery, re-home or re-reference any absolute encoders to restore their position data.

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Verified technical data. Last updated: March 2026

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