Hello My name is Teo,

i have a micromaster m430 18,5 KW to control the spead of a motor and after that a Fan 44.5 KW.

From the Program we say to inverter to go to 700 Rpm and for exampe are 30Hz. when the inverter reach that spead after start the Fan Motor 18.5 KW that is with relay control Δ - Υ.

The inverter Is going in Fault  because cant keep the inverter in standard Hz ( Rpm ) when start the Fan take together the inverter.

How can i keep my inverter In Standard Speed example 19 HZ without going in fault,??

I want to Keep Standard Speed  my inverter and give more power to conrol it !!!!!

Thanks.

Hello, 

Sorry But  i Didn't Explaion Very Well. i will make a photo or an image and i will upload again.

New question published by lalitsaraswat is split to a separate thread with the subject Fan with MM 430, performance of drive by reducing Pulse frequency.

Best regards
Min_Moderator