Safety input signals wrong, checksum

What does F507 mean?

The DIAX04 SSE-03VRS drive's safety module detected a checksum error in the received safety input signals. This means the integrity of the safety-related data transmitted from an external safety device (e.g., safety PLC) or across internal channels is compromised. This is a critical safety fault, as the drive cannot trust the received safety commands.

• Corrupted safety data telegram due to electromagnetic interference on the safety communication link.
• Faulty external safety PLC or safety communication module transmitting incorrect checksums.
• Damage or poor shielding on the safety communication cable to the DIAX04 SSE-03VRS drive.
• Internal fault within the DIAX04 SSE-03VRS drive's safety module that calculates or checks checksums.
• Mismatched safety communication protocols or versions between the external device and the DIAX04 SSE-03VRS.

Click steps to track your progress.

1. 1

   Check the safety communication link (e.g., Profisafe, F-Link) cabling for damage, proper shielding, and termination.

2. 2

   Verify the status and diagnostic logs of the external safety PLC or safety communication module for any errors.

3. 3

   Ensure that the safety communication protocol and configuration parameters are identical and compatible between the external safety device and the DIAX04 SSE-03VRS drive.

4. 4

   Check for sources of excessive electromagnetic interference near the safety communication cables.

5. 5

   Perform a full power cycle of the DIAX04 SSE-03VRS system and the external safety device. If the fault persists, consider a faulty safety communication interface on the drive.