10 Volts low

What does WARNING 1 mean?

The control card's 10 V supply from terminal 50 is less than 10 V, indicating it is overloaded. This can affect connected sensors or potentiometers, leading to incorrect control signals or loss of functionality.

• Excessive current draw from terminal 50 (10V supply) due to too many or faulty external devices (sensors, potentiometers) connected.
• Short circuit or partial short circuit on the wiring connected to terminal 50.
• Faulty external sensor or potentiometer drawing excessive current from the 10V supply.
• Internal fault with the frequency converter's 10V reference supply circuit on the control card.
• Incorrectly wired input, causing unintended current draw from the 10V supply.

Click steps to track your progress.

1. 1

   Disconnect all external devices from terminal 50 and measure the voltage between terminal 50 and terminal 55 (common) using a multimeter.

2. 2

   Reconnect devices one by one to identify which device causes the voltage drop on terminal 50.

3. 3

   Inspect all wiring connected to terminal 50 for damage, short circuits, or incorrect connections.

4. 4

   Verify the current consumption of each connected device (e.g., sensor, potentiometer) to ensure the total load does not exceed the frequency converter's specified 10V output capacity (e.g., 15mA).

5. 5

   Replace any external device confirmed to be drawing excessive current from terminal 50.