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<== Date ==> <== Thread ==>

Subject: motorRecord and hvel
From: "Mark Clift" <Mark.Clift@synchrotron.vic.gov.au>
To: <tech-talk@aps.anl.gov>
Date: Tue, 11 Apr 2006 18:11:49 +1000
Title: Message
Hi,
 
Im trying to use the same home (HVEL) and normal velocity (VELO) setting on a motion controller.  I am attempting to set HVEL.  Documentation says that
 
VBAS<=HVEL<=VMAX.  I can set VBAS ok in my database, but VMAX will not set.  Also, no matter what value I put into HVEL, I always end up with a HVEL=VBAS.
 
All my issues are at DB initialization.  If i use Dbputs after initialization, the HVEL and VMAX fields set properly.
 
Ive also noted that if VBAS=VELO then the acceleration commands in device support are never called.  Therefore I cannot set VBAS=VELO=HVEL in my database for initialization.  I dont have a base velocity on this motion controller.
 
My solution thus far is to make VBAS, and HVEL slightly different from VELO.
 
Would appreciate any advice.
 
Thanks very much,
 
Dr. Mark Clift.
Beamlines Control Systems Engineer
Australian Synchrotron Project
Major Projects of Victoria
800 Blackburn Road
Clayton VIC 3168
Tel: +613 8540 4264
Fax: +613 8540 4200
 
mailto:Mark.Clift@Synchrotron.vic.gov.au
http://www.synchrotron.vic.gov.au
 
 

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