F277

Current measurement trim wrong

Indramat · DIAX 04

What does F277 mean?

The DIAX04 SSE-03VRS drive detected an error during the internal current measurement trimming or calibration process. This implies that the internal current sensors are reporting values outside their expected range or are unstable, making accurate current control impossible. The drive faults to prevent improper motor control or potential damage to the power stage.

Common Causes

  • Internal hardware fault within the DIAX04 SSE-03VRS drive's current measurement circuitry (e.g., current sensors, ADCs).
  • Corrupted internal calibration data for current measurement.
  • Excessive electrical noise or interference affecting the internal current measurement components.
  • Power supply instability to the analog measurement circuitry within the DIAX04 SSE-03VRS.
  • Component aging or degradation of the current sensors.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a power cycle of the DIAX04 SSE-03VRS drive. Sometimes a transient condition can cause this fault.

  2. 2

    Check for any external sources of severe electromagnetic interference near the DIAX04 SSE-03VRS that could affect sensitive internal circuits.

  3. 3

    Verify the stability of the main power supply and the internal control voltage supplies for the DIAX04 SSE-03VRS.

  4. 4

    If available, attempt to run an internal current calibration routine (if supported by firmware) or reload default parameters.

  5. 5

    If the fault persists after these steps, it strongly indicates an internal hardware fault within the DIAX04 SSE-03VRS, requiring factory service or replacement.

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Verified technical data. Last updated: March 2026

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