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Bipolar input contolling Start/Stop


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#1 marke

marke

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Posted 13 May 2005 - 08:03 PM

The speed and direction are controlled using the differential input AnIn1 at terminals 2 and 3.
The direction is determined by the polarity of the input voltage.
The drive is only started if the speed reference is greater than a threshold set in 822

Operational Parameters
822 : Start Threshold

Setup

CODE


Controls

212 : Remote

213 : Remote

214 : R+L



Analogue Inputs

411 : Speed

412 : 0-10V/0-20mA

415 : Bipolar ON

416 : OFF



Digital Outputs

441 : CA1



Comparator

821 : AnIn1

822 : 5%


Connections
An+ to #2
An- to #3
Gnd to #1
Enable #10 to #11 (via enable switch)
DigOut1 [#20] to RunL[#8] to RunR[#9]

When the speed input goes above the reference (822) the output of the comparator turns on both the RunR and RunL inputs enabling the drive to run in either direction. The direction is determined from the polarity of the analogue speed input.

Best regards,




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