Overload of digital output terminal 27

Was bedeutet 40 ?

The digital output terminal 27 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 27 and ground (0V) or another supply voltage.
• Connected load (e.g., relay coil, solenoid) 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 27.
• Internal component failure on the control board's digital output stage for terminal 27.
• Water ingress or contamination causing a resistive path between terminal 27 and another conductor.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Disconnect all external wiring from digital output terminal 27.

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 27 and 0V (terminal 33) to check for a short-circuit.

4. 4

   Measure the operating current of the connected load (e.g., relay coil) using a clamp meter, ensuring it is below the terminal's maximum rating (e.g., 200mA).

5. 5

   Check the connected load's wiring for insulation damage or points of contact with ground or other phases.