Rexroth IndraDrive HCS Error Code F4012

Rexroth PLC & VFD Major Communication

Model: IndraDrive HCS | Code: F4012

Applicable Systems
EFC FEX FEI HNC

Symptoms

Invalid input/output data length. The drive has received a communication telegram with a data length that does not match the configured I/O data length.

Possible Causes

  • Master configured different I/O data length than the drive expects
  • Telegram configuration mismatch (wrong device profile selected)
  • Master using a different device model profile
  • Communication parameter for I/O length corrupted

Troubleshooting Steps

  1. Step 1: Check the I/O data length configuration in the master
    Master I/O length matches the drive's expected length
  2. Step 2: Verify the correct device profile (e.g., SERCOS profile, PROFIdrive profile) is selected
    Profile matches the drive model and firmware version
  3. Step 3: Compare the master's device configuration with the drive's actual device type
    Device types match; no model mismatch
  4. Step 4: Reload the correct device description file (GSDML, XML) in the master
    New device description matches the drive

How to Reset

1) Check I/O length config. 2) Verify device profile. 3) Compare device types. 4) Reload device description. 5) Reset fault.

Frequently Asked Questions

  • Q: Where do I find the correct I/O data length?

    In the drive's documentation or the device description file (GSDML for PROFIsafe, XML for SERCOS). The I/O data length specifies how many bytes are in the input and output telegrams.

  • Q: What is a device profile?

    A device profile defines the structure and meaning of the I/O data in the communication telegram. Common profiles include PROFIdrive (V2 or V3), SERCOS drive profile, and custom application profiles.

Related Rexroth Fault Codes

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

Category: PLC & VFD