Experimental Physics and
Industrial Control System

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 <2006> 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024	Index	1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 <2006> 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
<== Date ==>		<== Thread ==>

Subject:	motorRecord and hvel
From:	"Mark Clift" <[email protected]>
To:	<[email protected]>
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:[email protected]