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Industrial Automation & Network Hardware
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Troubleshooting Common IndraDrive C Fault Codes

May 08, 2025

Rexroth’s IndraDrive C series controllers are widely used in automated manufacturing environments requiring precise, real-time control of servo and synchronous motors. Despite their reliability, these drives can occasionally display fault codes that require attention. Whether you are commissioning a new system or diagnosing a legacy setup, understanding these common error codes can significantly reduce downtime.

This guide provides a reference overview of frequent IndraDrive C fault codes, what they typically mean, and general steps to help resolve them.

Top IndraDrive C Fault Codes

F200: Overtemperature

Meaning: The power section temperature has exceeded the allowable limit.
Common Causes:

  • Insufficient cooling or blocked airflow

  • Operation above rated ambient temperature

  • Damaged heatsink or fan

Remedies:

  • Check ambient temperature and ventilation

  • Clean filters and ensure proper air circulation

  • Replace failed fans or heatsinks if needed

F217: Overcurrent

Meaning: The output current has exceeded rated limits.
Common Causes:

  • Short-circuited motor leads

  • Incorrect motor configuration

  • Motor mechanical overload

Remedies:

  • Inspect motor wiring and continuity

  • Check motor nameplate data and verify parameter settings

  • Reduce load or check for mechanical binding in the drive system

F218: DC Bus Overvoltage

Meaning: The DC link voltage is too high.
Common Causes:

  • Regenerative energy not dissipated properly

  • Failed or missing braking resistor

  • Sudden deceleration of high-inertia loads

Remedies:

  • Check braking resistor wiring and resistance

  • Adjust deceleration ramp or use dynamic braking

  • Inspect bus capacitors and line filters

F219: DC Bus Undervoltage

Meaning: The DC link voltage is too low.
Common Causes:

  • Input supply interruption or brownout

  • Loose or faulty power connections

  • Power supply unit failure

Remedies:

  • Verify incoming line voltage is within specs

  • Inspect terminals and tighten all connections

  • Test with a known good power supply

F228: Motor Temperature Too High

Meaning: The motor temperature sensor has detected excessive heat.
Common Causes:

  • Continuous overload

  • Defective motor fan

  • Incorrect motor feedback or thermal model

Remedies:

  • Check load conditions and adjust current limit parameters

  • Inspect motor cooling system

  • Validate motor thermal parameters in the drive settings

F401: Parameter Checksum Error

Meaning: Internal memory checksum validation has failed.
Common Causes:

  • Power-up initialization error

  • Faulty parameter memory

  • Corrupted firmware

Remedies:

  • Reboot and reload firmware or parameter set

  • If persistent, contact service for EEPROM replacement or drive repair

F410: Encoder Fault

Meaning: Encoder signal loss or implausible feedback detected.
Common Causes:

  • Loose encoder cable

  • Signal interference or noise

  • Incorrect encoder type configured

Remedies:

  • Re-seat encoder cable connectors

  • Verify grounding and shielded cabling

  • Match encoder parameters in drive configuration

F802: Control Voltage Undervoltage

Meaning: Control voltage has dropped below safe operating levels.
Common Causes:

  • Faulty 24V supply or wiring

  • Excessive voltage drop due to long cable runs

  • Overloaded 24V circuit

Remedies:

  • Test voltage directly at the drive terminals

  • Upgrade to a higher-capacity or regulated supply

  • Reduce number of 24V loads in the circuit

General Troubleshooting Tips

  • Record the full error message and context (including load conditions, ambient temperature, and system behavior).

  • Use Rexroth’s IndraWorks software to access diagnostic logs and fault histories.

  • Always verify firmware compatibility and parameter backups before attempting firmware updates or resets.

  • Never perform repairs on live equipment. Always disconnect power before servicing the drive.

For more information or help selecting the right drive, contact PLG Automation:Email: sales@plgautomation.comPhone: 800-906-9271