Overload of digital output terminal 29

What does 41 mean?

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.

• 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.

Click steps to track your progress.

1. 1

   Disconnect all external wiring from digital output terminal 29.

2. 2

   Power up the drive and verify if the fault clears; if so, the issue is external to the drive.

3. 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. 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. 5

   Inspect the connected load's wiring for insulation damage or contact with grounded surfaces or other potentials.