File $Source: /home/juda/www/hrc_flight/RCS/expose_cal.html,v $
Version $Revision: 1.6 $
Last Update $Date: 1999/05/10 18:08:08 $
HRC CCB Status Approved

OP03 Procedures op03:

HRC Command Sequences

Expose Cal Source

Description:

This sequence is used to move the calibration source so that the source shines through the hole in the cal. source assembly. This sequence uses serial digital commands to configure the HRC motor controller , select the HRC internal calibration source motor, and move it to the maximum limit switch. After verification that the limit switch is reached, the motor drive is disabled and motor deselected. This sequence is used in combination with the sequence that moves the HRC detector housing door to position the source over the HRC-I and HRC-S (see: "Door Position Cal Source").

Cautions/Restrictions:

This sequence requires a real-time contact so that the limit switch verification can be performed.

Flow Diagram

Delta-Time Command Mnemonic Description Cmd Field Mnemonic Data Parameter Telemetry Verifier Expected Value Notes
00:00:01.000 2MCMRASL Motion Control Mode Reset     2MCMDARS RSET sd6f00
00:00:01.000 2CLMTASL Select Cal Source Motor     2CLMTAST SEL sd7200
00:00:01.000 2STFLADI Clear Stop Flags     2SFLGAST DISA sd5400
00:00:01.000 2STFLAEN Enable Stop Flags     2SFLGAST ENAB sd5401
00:00:01.000 2SMOIAEN Enable Selected Motor Over-current Protection     2DROIAST ENAB sd4901
00:00:01.000 2SMOTAEN Enable Selected Motor Over-temperature Protection     2DROTAST ENAB sd4a01
00:00:01.000 2CHPLADI Disable Primary Closed/Home Limit Switch     2CPLSAST DISA sd5000
00:00:01.000 2CHSLADI Disable Secondary Closed/Home Limit Switch     2CSLSAST DISA sd5100
00:00:01.000 2OMPLAEN Enable Primary Open/Max Limit Switch     2OPLSAST ENAB sd5201
00:00:01.000 2OMSLADI Disable Secondary Open/Max Limit Switch     2OSLSAST DISA sd5300
Verify Proper Motor Controller Configuration
00:00:01.000 2MDRVAEN Enable Motor Drive Electronics     2MDRVAST ENAB sd6801
00:00:01.000 2MVLBAEX Move to Open/Max Limit Switch     2MCLBAMD CMD sd6b01
Wait while calibration source moves
Verify Primary Open/Max Limit Switch Activated (2OPLSAAC = ACTV)
Verify Secondary Open/Max Limit Switch Activated (2OSLSAAC = ACTV)
Verify Calibration Source "Max" Limit Switch indicates that source is exposed (2CSLSMX = ACT)
00:00:01.000 2MDRVADI Disable Motor Drive Electronics     2MDRVAST DISA sd6800
00:00:01.000 2ALMTADS Deselect All Motors     2ALMTAST SEL sd7000

$Log: expose_cal.html,v $

Revision 1.6 1999/05/10 18:08:08 jhc

corrected initial time delay to 1 sec

Revision 1.5 1999/04/07 18:41:04 juda

HTML changes: added DOCTYPE and ALT reference for flow diagram - added "name" tags to sub-sequences

Revision 1.4 1999/03/03 20:42:49 juda

changed link for "Door Position Cal Source" since filename has changed

Revision 1.3 1998/06/01 12:23:16 juda

Corrected 2SMOTAEN serial digital value (changed sd4a00 to sd4a01) - reformatted table entries for telemetry verification of end motion

Revision 1.2 1998/05/13 19:54:20 juda

changed first sentence to end "...in the cal. source assembly" - fixed spelling in graphic flowchart - Marked as Approved

Revision 1.1 1998/05/11 15:42:33 juda

Initial revision

Dr. Michael Juda
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Mail Stop 70
Cambridge, MA 02138, USA
Ph.: (617) 495-7062
Fax: (617) 495-7356
E-mail: mjuda@cfa.harvard.edu