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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

rAM.E

RAM Anomaly (Remote Display)

Schneider Electric · Altivar 312 Variable Frequency Drive

What does rAM.E mean?

This error indicates that the remote display terminal has detected an internal Random Access Memory (RAM) anomaly. This points to a critical internal hardware malfunction within the display terminal's temporary data storage. The terminal's ability to process and display information will be impaired.

Common Causes

  • Internal Random Access Memory (RAM) data corruption within the remote display unit due to transient errors or hardware degradation.
  • Manufacturing defect in the RAM chip of the display unit, causing unreliable data storage and retrieval.
  • Transient power disturbances (sags, surges) affecting the display's control power supply (e.g., 24VDC), leading to memory corruption.
  • Electromagnetic discharge (ESD) damage to the display's internal circuitry, impacting RAM functionality.
  • Critical internal hardware malfunction within the display terminal's memory components preventing proper operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Power cycle the remote display unit by physically disconnecting it from the drive for at least 30 seconds and then reconnecting it.

  2. 2

    2. Monitor the quality of the incoming control power supply to the drive and, consequently, the display (e.g., 24VDC) for any sags, surges, or transients.

  3. 3

    3. Ensure proper static discharge (ESD) precautions are followed when handling or installing the remote display unit to prevent future damage.

  4. 4

    4. If the display has configurable internal settings, perform a factory reset via the display menu (if accessible) to clear any potentially corrupted volatile memory.

  5. 5

    5. This fault strongly indicates a hardware malfunction within the remote display's memory components; prepare for replacement of the remote display unit.

Browse all codes in this manual (31)
Verified technical data. Last updated: April 2026

Related Faults

A-17Alarm Button (Remote Display)CFFIncorrect ConfigurationCFIInvalid Configuration
Source: Schneider Electric Altivar 312 Variable Frequency Drive
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