Start condition

What does 81 mean?

Immediate switch-off with inhibit, specifically in "VFC hoist" operating mode. The motor could not be supplied with the correct current during pre-magnetizing time, possibly due to rated motor power being too small for the inverter or undersized motor cables. This prevents proper motor startup and can stress the inverter.

Complete Troubleshooting Guide

1. 1

   Check the connection between the inverter and the motor, ensuring all phases are securely connected.

2. 2

   Check startup data and perform a new startup if necessary, verifying the rated motor power and other motor parameters.

3. 3

   Check the cross-section of the motor cable and increase it if necessary to ensure adequate current delivery without excessive voltage drop.