User-Defined Fault #1 / Fan Loss (Model Specific)

What does 35 mean?

For X5 AC Drives, this fault is user-configurable (User Flt 1), indicating a condition defined by the system integrator or user as a critical error. The specific cause depends entirely on the application's programming. For X4 AC Drives, this fault signifies a 'Fan Loss', indicating a problem with the heat sink or internal cooling fan, which could lead to overheating if unresolved.

• External digital input (e.g., terminal DI-X) configured via parameter P6-01 to trigger Fault 35, activated by an external sensor (e.g., conveyor jam, over-pressure switch).
• For X5 AC Drives: Drive cooling fan speed below minimum threshold or fan motor stalled, causing insufficient airflow.
• For X5 AC Drives: Cooling fan motor wiring disconnected or fan control circuit fault, preventing fan operation.

Click steps to track your progress.

1. 1

   1. Identify the digital input (e.g., parameter P6-01 setting) configured to activate Fault 35. Troubleshoot the external sensor, wiring, and logic controlling that digital input.

2. 2

   2. For Fan Loss (X5 Drives): Power down. Visually inspect the cooling fan for obstructions, debris, or damaged blades.

3. 3

   3. For Fan Loss (X5 Drives): Using a multimeter, check for appropriate voltage supply (e.g., 24VDC or 120VAC depending on fan type) at the fan connector pins when the drive is powered on and expected to run.

4. 4

   4. For Fan Loss (X5 Drives): Confirm the fan wiring harness is securely connected to the drive's control board.

5. 5

   5. For User-Defined Fault: Temporarily disable the fault triggering input (e.g., change P6-01 to 0 or disconnect wire from DI-X) to confirm the external circuit is the source.