How to control MV motor starter by DCS PLC
How to control MV motor starter by DCS PLC
(OP)
Hi everyone,
We use motor starter c/w fused contactor to control 6kV motors. The 6kV motors and low voltageg 380V motors are all controlled by DCS system.
For the LV motors, smart or intelligent MCC are used,such as Siemens Smart Tiastar MCC.Each MCC cubicles are serial linked to an interface master which is linked to DCS PLC by one serial data cable.
As for MV motors controllers, MV motor relaying like GE 469 or Schneider Sepam relaying are installed. Each relaying has communication port like RS485 or IEC 61850. Can we use the same method as LV MCC to connect these relayings to one interface master then link the master to DCS PLC or shall we hardwire each relaying to DCS PLC?
Thanks,
Parkpower
We use motor starter c/w fused contactor to control 6kV motors. The 6kV motors and low voltageg 380V motors are all controlled by DCS system.
For the LV motors, smart or intelligent MCC are used,such as Siemens Smart Tiastar MCC.Each MCC cubicles are serial linked to an interface master which is linked to DCS PLC by one serial data cable.
As for MV motors controllers, MV motor relaying like GE 469 or Schneider Sepam relaying are installed. Each relaying has communication port like RS485 or IEC 61850. Can we use the same method as LV MCC to connect these relayings to one interface master then link the master to DCS PLC or shall we hardwire each relaying to DCS PLC?
Thanks,
Parkpower






RE: How to control MV motor starter by DCS PLC
I think your operators might be more comfortable with hard-wired I/O from the PLC when it comes to stopping the motors, rather than relying on a serial interface.
"An 'expert' is someone who has made every possible mistake in a very narrow field of study." -- Edward Teller
RE: How to control MV motor starter by DCS PLC
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RE: How to control MV motor starter by DCS PLC
"An 'expert' is someone who has made every possible mistake in a very narrow field of study." -- Edward Teller
RE: How to control MV motor starter by DCS PLC
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If we learn from our mistakes I'm getting a great education!
RE: How to control MV motor starter by DCS PLC
old field guy