Technology function Immediate disconnection

What does 87 mean?

This fault occurs when an attempt is made to load a parameter set for an application version unit (with technology functions activated) into a standard version unit. Standard units do not support advanced technology functions, causing a conflict during parameter loading. The inverter immediately disconnects.

Complete Troubleshooting Guide

1. 1

   Activate the factory settings of the inverter (P802 = YES) to clear any incompatible parameter sets.

2. 2

   Reset the unit after activating factory settings to ensure a clean state.

3. 3

   Ensure that the parameter set being loaded is appropriate for a standard version unit, or use an application version unit if technology functions are required.