External fault 2

What does F07861 mean?

An external monitoring device or system has triggered the "external fault 2" 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.

• Activation of a thermal overload relay protecting an auxiliary motor (e.g., fan, pump) connected to the drive's digital input (e.g., DI2).
• Safety limit switch (e.g., end-of-travel, guard door) connected to the drive's digital input, indicating a safety violation.
• Loss of auxiliary power supply for an external sensor or control circuit whose status is monitored by the drive.
• Intermittent wiring fault (e.g., vibration-induced break, loose screw) on the digital input terminal (e.g., X1-DI2) or sensor cable.
• Incorrect assignment of the external fault function to the corresponding digital input parameter (e.g., P4-03 for DI2).

Click steps to track your progress.

1. 1

   Locate the specific external device connected to the drive's digital input configured for 'External Fault 2' (e.g., consult electrical schematics, parameter P4-03).

2. 2

   Check the operational status and local indication of the identified external device (e.g., trip indicator on overload, position of limit switch).

3. 3

   Measure the voltage or continuity at the drive's digital input terminal (e.g., DI2) to confirm the received signal state.

4. 4

   Review drive parameters P4-03 (Function assignment for DI2) and P4-04 (Digital input logic, NO/NC) to ensure correct programming.

5. 5

   Inspect all wiring and connections between the external device and the drive's input terminals for physical damage or loose screws.