How to Fix Indramat EcoDrive Errors

Indramat EcoDrive systems are integral components in industrial automation, providing reliable motion control for a wide range of applications. Despite their durability, EcoDrive units like any complex piece of technology are not immune to faults. When errors do arise, understanding and resolving them quickly is essential to keeping your production line running and minimizing costly downtime.

At Wake Industrial, we specialize in diagnosing and repairing Rexroth Indramat drive systems, including the EcoDrive series. In this guide, we’ll walk you through the most common EcoDrive fault codes and what to do when they appear.

Decoding EcoDrive Error Codes

EcoDrive controllers use a system of alphanumeric diagnostic messages to communicate their status:

• F-codes indicate faults that require immediate attention (F860, F229).

• E-codes are warnings alerts about conditions that could soon become faults.

• A-codes are status messages confirming normal operation.

These codes appear on the two-digit display of the drive and point directly to what component or process needs review.

Common EcoDrive Fault Codes and How to Fix Them

F860 – Overcurrent

• Cause: Short circuit in the motor cable or improperly set current loop parameters.

• Fix: Inspect motor cabling for shorts. Check and adjust current regulator parameters in the controller.

F229 – Motor Encoder Error (Quadrant Fault)

• Cause: Faulty encoder cable or interference in signal transmission.

• Fix: Replace the encoder cable, ensure proper shielding, and check the encoder interface.

F248 – Low Battery Voltage

• Cause: Internal memory backup battery is nearing end of life (typically after ~10 years).

• Fix: Replace the battery within two weeks of this warning to avoid data loss.

F234 – Emergency Stop Activated

• Cause: Triggered by mechanical failure, safety circuit, or user initiated stop.

• Fix: Identify and address the root cause of the emergency stop before resetting the drive.

F219 – Motor Overload

• Cause: Motor is exceeding thermal limits due to high mechanical load or ventilation failure.

• Fix: Reduce load, inspect ventilation, and verify temperature sensor wiring.

F277 – Hardware Fault

• Cause: Internal issue within the drive controller hardware.

• Fix: Requires factory repair or replacement of the drive.

F402 – Double MDT Failure

• Cause: Master Data Telegram not received during two consecutive SERCOS cycles.

• Fix: Check and clean fiber optic connections; ensure SERCOS interface is seated correctly.

F228 – Acceleration Limit Exceeded

• Cause: Mechanical jam or excessive torque demand.

• Fix: Adjust torque force limits and inspect for mechanical blockages.

Step-by-Step Guide for EcoDrive Error Resolution

Step 1: Stay Calm

Remain composed. A clear head will help you identify and solve the issue logically.

Step 2: Consult the Manual

The EcoDrive user manual is your best tool. It contains detailed explanations, parameters, and solutions for each diagnostic code.

Step 3: Diagnose and Troubleshoot

Start with simple checks—loose cables, parameter mismatches, or environmental conditions. Often, these small fixes resolve the issue.

Step 4: Contact an Expert

If the fault persists, it's time to seek help. Look for local support by searching:

• “Rexroth Indramat repair near me”

• “Indramat DKC drive troubleshooting United States”

For more information, contact PLG Automation:
Email: sales@plgautomation.com
Phone: 800-906-9271