Board Fault

What does 55 mean?

A board fault has been detected in the R&M Materials Handling Frequency Converter, specifically indicating that the API3 board is either not installed or not functioning correctly. This could be due to power issues, incorrect wiring connections, or a faulty board component.

• API3 board not installed
• API3 board not working properly

Click steps to track your progress.

1. 1

   Switch off the supply voltage to the frequency converter

2. 2

   Check the supply voltage to the API3 board

3. 3

   Verify all wiring connections to the API3 board

4. 4

   If the problem recurs, replace the inverter