File $Source: /home/juda/www/hrc_flight/macros/RCS/i_hv_on.html,v $
Version $Revision: 1.3 $
Last Update $Date: 1999/07/07 14:48:20 $
HRC CCB Status Approved

OP03 Procedures op03:

HRC Higher-Level Sequences

Initial HRC-I MCP HV On


This procedure should be followed the first time the HRC-I MCP HV power supply is turned on during OAC. First, the stored command sequence that protects the HRC MCPs in the event of a high radiation environment (85) is enabled. Then, the three protected stored command sequences for the HRC-S MCP HV (SCS 88, 90, and 93) and for the HRC dither control (SCS 91) are each disabled as necessary. The HRC-I MCP HV ramp-up SCS (89) is disabled and the ramp-down SCS (87) is enabled. Finally, the HRC-I MCP HV turn-on SCS (92) is enabled and activated.


This procedure should not be executed until the the HRC detector housing door has been open for 24 hours.

Flow Diagram


$Log: i_hv_on.html,v $

Revision 1.3 1999/07/07 14:48:20 juda

added EPS subformat selection and inserted SCS 91 disable steps

Revision 1.2 1999/07/06 15:39:38 juda

removed manual HV ramp-up step

Revision 1.1 1999/07/06 15:30:30 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