DC converters SIMOREG

run into field weakening with 1HU perminent field DC motor

Thread Starter: jim_map   Started: 8/8/2012 4:18 PM   Replies: 2

  8/8/2012, 4:18 PM

jim_map Joined 8/3/2012 Last visit: 5/9/2013 Posts: 4 Rating:  (0)

(0)  Dear Sirs, Is it possible to run 1HU perminent field DC motor into field weakening mode with SIMOREG 6RA70? In my understanding, I have to set P082 = 0: Internal field is not used. In case my motor rated speed is 1800rpm, tacho data is 20mVmin,i.e, 20V<-->1000rpm, does it mean that the max speed I can reach for this motor is 1800rpm, P083 = 1: The actual speed is supplied from the “Main actual value” channel (K0013) (terminals XT.103, XT.104) P741 Tacho voltage at maximum speed = 1800/1000*20=36V Thanks and Regards

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  8/9/2012, 6:20 AM

KSN Joined 8/25/2006 Last visit: 5/23/2013 Posts: 900 Rating:  (85)	(0)  Hello. If your motor is permanent-field, there will not be any field weakening mode, as you disable internal field in drive (P082=0). If your tacho 20V-1000rpm, then P741=36V is ok.
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  8/10/2012, 3:37 AM

jim_map Joined 8/3/2012 Last visit: 5/9/2013 Posts: 4 Rating:  (0)	(0)  I see, thanks.
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