Drive: Regenerative power limit exceeded (F3E)

What does F07806 mean?

For PM250 and PM260 blocksize power units, the regenerative rated power (r0206[2]) was continuously exceeded for more than 10 seconds. This indicates that the drive is generating excessive energy back into the DC bus or supply, which can lead to overvoltage and potential damage if the regeneration capability is insufficient.

Complete Troubleshooting Guide

1. 1

   Increase the deceleration (down) ramp time in the drive parameters to reduce the rate of energy regeneration during braking.

2. 2

   Reduce the mechanical driving load or optimize the application's cycle to decrease the amount of regenerated energy.

3. 3

   Consider upgrading to a power unit with a higher regenerative feedback capability if the application inherently produces significant regenerative energy.

4. 4

   For vector control applications, reduce the regenerative power limit in parameter p1531 to prevent the fault from triggering prematurely.