Rexroth IndraDrive HCS Error Code F8067

Rexroth PLC & VFD Major Hardware

Model: IndraDrive HCS | Code: F8067

Applicable Systems
EFC FEX FEI HNC

Symptoms

PWM timer synchronization fault. The drive has detected a synchronization error in the PWM (Pulse Width Modulation) timer that controls IGBT switching.

Possible Causes

  • Control board FPGA timing error
  • PWM carrier frequency set too high for the hardware
  • Interference from another drive on the same power supply
  • Firmware version incompatibility with PWM timer hardware

Troubleshooting Steps

  1. Step 1: Check PWM carrier frequency setting in IndraWorks AS
    Frequency within the rated range for the drive model (typically 2-16 kHz)
  2. Step 2: Verify no other drives on the same power supply are causing synchronization issues
    Each drive operates independently without interference
  3. Step 3: Power-cycle the drive to reset the PWM timer
    Timer synchronizes correctly after restart
  4. Step 4: If fault recurs, reload firmware or replace control module
    New control module provides stable PWM timing

How to Reset

1) Check PWM frequency parameter. 2) Power-cycle. 3) Reload firmware. 4) Replace control module if persistent.

Frequently Asked Questions

  • Q: What PWM carrier frequency should I use?

    Default is typically 4-8 kHz. Higher frequencies reduce motor noise but increase drive heating. Consult the motor and drive specifications.

  • Q: Does PWM timer fault affect motor performance?

    Yes. PWM timing errors can cause uneven motor torque, increased ripple, and potential motor heating. Address immediately.

Related Rexroth Fault Codes

Source: Rexroth IndraDrive HCS/HMS Fault Code List, Bosch Rexroth AG

Category: PLC & VFD