External fault 3

What does F07862 mean?

An external monitoring device or system has triggered the "external fault 3" input signal to the drive. This indicates a critical condition detected by equipment outside of the drive's internal monitoring, requiring investigation of the connected external safety chain or process. Ignoring this fault can lead to equipment damage or unsafe operating conditions.

• Safety relay output (e.g., guarding system, E-stop circuit) connected to the drive's digital input (e.g., DI3) has opened.
• Flow sensor (e.g., for process cooling, lubrication) detecting insufficient flow, causing its contact to trip the drive.
• Over-pressure or under-pressure switch detecting abnormal process conditions in a critical system.
• Damage to the signal cable for the external fault input (e.g., X1-DI3), leading to an unintended contact break or short.
• Misconfiguration of the digital input parameter (e.g., P4-05) assigning an incorrect function or logic to the input.

Click steps to track your progress.

1. 1

   Identify the specific external device or control circuit connected to the drive's digital input configured for 'External Fault 3' (e.g., review system documentation, parameter P4-05).

2. 2

   Verify the status of the identified external device or system (e.g., check safety relay status, flow meter reading, pressure gauge).

3. 3

   Measure the voltage or continuity at the drive's digital input terminal (e.g., DI3) to confirm the signal state.

4. 4

   Check drive parameters P4-05 (Function assignment for DI3) and P4-06 (Digital input logic, NO/NC) for correct setup.

5. 5

   Trace the signal wiring from the external device to the drive's input, checking for cable integrity and proper termination at both ends.