How can i ensure that 3 machines all ac inverter and shaft encoder controlled will synchronise position from the instant they are called on to run- bare in mind that the machines will stop in different positions.
plc type FX32MR WITH 2 FX2DA OUTPUT MODULES TO THE INVERTERS.
I along with others...
Everyone, thanks very much for the benifit of your wise advice and experience.
since changing the star contactor, on tuesday morning, apart from 1 or 2 trips we experienced after -which may have been a result of incorrect timer settings- the main mcb has not tripped.
i hope this thread has been...
Thankyou for the helpful advice thus far.
i have replaced the star contactor which looked a little suspect but not 2 bad.
checked the motor for resistance and insulation using a 1000 volt megger.
i have checked the mechanical interlocks and timer which are ok.
so any other ideas would be...
i work in bread baking.
on one of the mixing machines during a 24 hour day and 200-250 mixes it will trip the main mcb-in the switch room-around about 12-15 times.
checking the current with an identical mixer when kicking into delta the problem mixer pulls 340 amps and the alright mixer pulls...