2015_02_25 < Subaru/PFS

---++ Swapped Driver Boards on 2/24/2015
   * Charlie and Peter installed Driver Board (SN 02) onto the module.
   * Re-connected all flex print cables from Cobras to the driver board
      * Installed into the same connectors they were before (we skipped the same sets so as to not screw up MSIM)

---++ Fixing Electrical Issues on Test Bed
   * Corrections made:
      * Grounded Negative side (-) of Cobra power supply output to AC ground
      * Grounded test fixture to AC ground
      * Added ground wire from Master Electronics to Driver Board as a stand alone cable (the ground pins of the Comm connector were not included in the cable)

---+++ Checking out motor motion
   * Housekeeping and Set Frequency work fine
   * Cal does not appear to be working, but data is provided back somehow
   * Running all Cobras through range of motion:
      * SN 152 - Stage 2 does not engage the hard stop and does not move reliably.  This Cobra should no longer be counted on for data.
      * SN 149 - Stage 2 does not engage hard stop.  This Cobra should not be counted on for data.
      * SN 109 - Stage 2 does not move.  It looks like it is contacting the Stage 2 housing, which might cause too much drag.
      * SN 121 Stage 1 moves very slowly.
      * SN 101 Stage 2 does not move.  Potentially an issue with the electrical connection.
   * *ALL SET B COBRAS HAVE BEEN SET BY HAND TO NOT INTERFERE WITH THE SET A RANGE OF MOTION*



-- Main.ChazMorantz - 25 Feb 2015
This topic: Subaru/PFS > WebHome > POSitionerEM > POSEM_AL > 2015_02_25
Topic revision: r1 - 2015-02-25 - ChazMorantz