Cause : External fault 1 comes when an external input wired into the drive has triggered a fault. The drive is configured to monitor a digital input, and that input is signaling FAULT.

f07860 fault indicates an "External Fault 1". This means that an external device or condition connected to the drive has triggered a fault signal, causing the drive to stop.

Troubleshooting Steps:

Follow these steps to correct f07860 fault:

• Check wiring first: Find the digital input (often something like DI1, DI2, etc.) assigned to External Fault 1.
• Monitor Input Signal: Use a multimeter to check the voltage level on the digital input terminal at the drive that is configured for "External Fault 1".
• Verify the Status of the External Device: Check the status of the external device that is supposed to trigger the fault.
• Inspect Wiring: Examine the wiring between the external device and the drive for any signs of damage, loose connections, or shorts.
• Acknowledge/Reset the Fault: Try to acknowledge or reset the fault on the drive using the operator panel or via a digital input configured for fault reset.