Overload of digital output terminal 29
Danfoss · VLT AutomationDrive FC 301/302
¿Qué significa 41 ?
The digital output terminal 29 is experiencing an overload condition. This is likely due to excessive current draw from the connected load or a short-circuit, potentially damaging the output circuitry.
Causas comunes
- Short-circuit between digital output terminal 29 and ground (0V) or another supply voltage.
- Connected load (e.g., indicator lamp, contactor coil) drawing current significantly exceeding the terminal's rated output (e.g., 200mA).
- Incorrect wiring of the load, causing a direct short across the output transistor of terminal 29.
- Internal component failure on the control board's digital output stage for terminal 29.
- Contamination or moisture ingress causing a resistive path between terminal 29 and another conductor.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Disconnect all external wiring from digital output terminal 29.
- 2
Power up the drive and verify if the fault clears; if so, the issue is external to the drive.
- 3
With power off, use a multimeter to measure the resistance between terminal 29 and 0V (terminal 33) to check for a short-circuit.
- 4
Measure the operating current of the connected load (e.g., contactor coil) using a clamp meter, ensuring it is below the terminal's maximum rating (e.g., 200mA).
- 5
Inspect the connected load's wiring for insulation damage or contact with grounded surfaces or other potentials.