Why my frequency converter go only to 2.5Hz?

FAQ #101958

The settings of the frequency converter are correct. But the frequency converter goes only to 2.5Hz. If you disconnect the motor from the frequency converter then the frequency converter works correctly.

It could be that the motor consume too much current.

In this special case the motor was already working several years without frequency  converter under a roof. The circumstances of the weather involving that the isolation isn't god enough and the motor use too much energy.


Every time when you connect an old motor with a frequency converter, connect between the devices a sinus filter to avoid such kind of problem.


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Last update: 14.10.2015 12:13

First release: 23.07.2015 07:20

Views: 3

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.