Still having the occasional trip, the application is pumping fuel from a tank to roadtanker and often prior to the motor starting we are having flow of product due to head of the tank. I was wondering how i should have the dip switches set up? I think in some instances (depending on the tank...
I have changed the way the PCS operates by putting a thermal overload and aux contact block onto the contactor and bringing the contactor in 1st and the aux contact gives the signal to the PCS to start. The PCS is now only used as a soft starter with no integration to the control circuit. This...
Hey Shozza, yeah mate it looks as though it wasn't the problem, it tripped again last night and for the first time I was able to see where in the cycle the fault occurred, it happens on start up. The issue I have is that if I swap the starter with another one in the board which hasn't been...
Thanks Shozza the more I look at it the more it appears to be the low current fault. We have had the overloads set to about 33amps and the motor at stages is dragging approximately 15.5 amps prior to stopping.
Thanks Shozza, I am looking at your proposal now, I think the pumps we are running are over rated for the task, I have the overload on the starter set at FLC but looking at it we only we are dropping below that 50% mark on occasions. I was trying to find the technotes you spoke of but can't seem...
I have changed the starter with a brand new one from the supplier and the fault has persisted. I have swapped starters in the switchboard and the problem has shifted with the starter. In my mind it appears that there may be an issue with a batch of starters out there??? The low current problem...
I am having a problem with a Sprecher and Schuh PCS-037-480v soft starter. Intermittently it is going into Phase loss/open load fault. There are 5 other pumps within the switchboard all controlled the same way and we have no other issues, I have replaced the starter and still have the same...
