One thing is to wire a momentary switch to M1, that’s the remote start on the control loop. Then no matter if you loose DCS or not ,it will keep running.Until you tell it to stop or hit the low level
LOL..I completely understand your point and I do have the history of the actual running conditions. This motor was designed with no remote start, just a low Level cut off. I am considering ways to add a remote start to the schematic. I looked at ways to program this via DCS but it hasn’t worked...
Great insight. What about putting an interposing Relay in the START circuit . The primary function will be to close the circuit and start the pump and have the NO contacts wired to the DCS DO contacts and configure it to start/ stop pump based on Level with an already existing Level Transmitter...
The schematic above has to be automated. What would be the best two options to put a START relay in the Bucket for pump remote start .Mind you, this pump already has a low level cut off so what’s needed is just to start it remotely. The idea is to put a start relay and wire it to a DCS DO Charm...
Thanks I have just cracked the puzzle as to why it wasn’t priming. Pump is self priming as we speak and I have programmed it to start/stop based on Level.
Start/stop is local. There is a low level cut off for motor. And it has to be manually primed for each start when it gets to a certain level. There is no remote start/stop at the moment
The pump is there. The waste water goes into the sump and when it gets to a certain level. Pump is turned on and when level gets to a certain low level . Pump shuts down. There is also a feed line for prime water into pump casing
So the pump motor is already wired to DCS and there is a Radar Level transmitter to monitor Sump Level. I think I can just program the start and stop of Motor directly in the DCS instead of going through a longer route. Once I can have the pump primed automatically whenever the motor stops based...
