EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  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  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: Pro-Dex OMS MAXv card reading limit-switches
From: "Mark Rivers" <[email protected]>
To: "junkes" <[email protected]>, <[email protected]>
Date: Thu, 12 May 2011 07:44:26 -0500
If you set your switches so that they both indicate a limit, what happens if you try to move in the plus direction?  Does the motor move?  Similarly, if you try to move in the minus direction, does the motor move?  It should not move in either direction.  If you try to move in the positive direction the HLS PV should be 1, and if you try to move in the minus direction LLS should be 1.  If it moves in either direction then either your wiring is incorrect or the board is broken.
 
Mark
 

________________________________

From: [email protected] on behalf of junkes
Sent: Thu 5/12/2011 7:15 AM
To: [email protected]
Subject: Pro-Dex OMS MAXv card reading limit-switches




 Using OMS MAXv-card i always get only the the state of the PLUS-LS

 Never the MINUS_LS even if i change the wiring (PLUS-LS <-> MINUS-LS)

 The switche input is low when hit

 Motor-6.5

 Regards,
 Heinz


 MSTA   R       Motor Status    ULONG   The motor status as received from the
 hardware.  The MSTA bits are defined as follows:

        1. DIRECTION: last raw direction; (0:Negative, 1:Positive)
        2. DONE: motion is complete.
        3. PLUS_LS: plus limit switch has been hit.
        4. HOMELS: state of the home limit switch.
        5. Unused
        6. POSITION: closed-loop position control is enabled.
        7. SLIP_STALL: Slip/Stall detected (eg. fatal following error)
        8. HOME: if at home position.
        9. PRESENT: encoder is present.
       10. PROBLEM: driver stopped polling, or hardware problem
       11. MOVING: non-zero velocity present.
       12. GAIN_SUPPORT: motor supports closed-loop position control.
       13. COMM_ERR: Controller communication error.
       14. MINUS_LS: minus limit switch has been hit.
       15. HOMED: the motor has been homed.

     The record is put into MAJOR STATE alarm if either SLIP_STALL or
 PROBLEM bits are detected. If HLSV is set, then the record is put into
 HIGH alarm if either a high soft limit or hard limit (PLUS_LS) has been
 reached. Similary for the low limits.




References:
Pro-Dex OMS MAXv card reading limit-switches junkes

Navigate by Date:
Prev: Pro-Dex OMS MAXv card reading limit-switches junkes
Next: Re: Pro-Dex OMS MAXv card reading limit-switches Martin L. Smith
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Pro-Dex OMS MAXv card reading limit-switches junkes
Next: Re: Pro-Dex OMS MAXv card reading limit-switches Martin L. Smith
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 18 Nov 2013 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·