Slip compensation for VFCplus does not work after downloading parameters

Corrected from: 

  • Inverter Drives 8400 StateLine V16.00.00
  • Inverter Drives 8400 HighLine V16.00.00
  • Inverter Drives 8400 TopLine V16.00.00

Response of the new version:

After downloading parameters, the slip compensation works properly.

What happens?

There is no slip compensation output. Furthermore, operation in generator mode is no longer detected for VFCplus without encoder and the actual torque display via the process output or C0056 indicates 0.

When does this behaviour occur?

The behaviour occurs in the VFCplus mode after downloading parameters.

Which products are affected?

  • Inverter Drives 8400 StateLine V15.00.00
  • Inverter Drives 8400 HighLine V15.00.00
  • Inverter Drives 8400  TopLine V15.00.00

Short-term measures:

Restart the inverter after downloading parameters.

Update firmware to V16.00.00.00

Evaluation/recommendations:

Poor speed accuracy, limited diagnostics options


URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/201500444/1/
Contact form