Re: [foxboro] Motor Start/Stop Logic

Yes, we do.  This allows our stop contact to stop the motor, but not start 
it.

We take another contact off the M for run status back to the DCS.


c²





"Burnham, Rob C." <rburnham@xxxxxxxxxxxxxx> 
Sent by: foxboro-bounce@xxxxxxxxxxxxx
01/24/2006 12:21 PM
Please respond to
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Subject
Re: [foxboro] Motor Start/Stop Logic






We don't because we send it to a PLC input so
we can have Ready To Run indication and overload
indication.

Are you using a seperate contact for running feedback
to your DCS?

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx
[mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of
brad.s.wilson@xxxxxxxxxxxxxx
Sent: Tuesday, January 24, 2006 11:10 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Motor Start/Stop Logic


I must be missing something in all this.  Don't you all use the =
auxiliary
contacts built into the motor starter to hold in the starter?

I don't see any operational deficiencies in either GDEV or MTR.
The only improvement I might make would be to transition the AUTDSR back =
to
0 if the motor didn't start.
That way you wouldn't have to toggle AUTDSR twice (off, then on again) =
to
try restarting the pump.

Brad Wilson
ExxonMobil Chemical Co
Edison Synthetics Plant
732-321-6115
732-321-6177 fax
Brad.S.Wilson@xxxxxxxxxxxxxx




 
 
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