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  • Notes
    • The following is from Jana answering some of my questions:
      • What does "current delta is in range" mean?
        Current delta is defined as the difference between a BPU current measured before a unit is turned on and after a unit is turned on.
        For example, before the SIU is turned on, the BPU SIU feed will register 0.1A (don't ask why it's not zero). After the SIU is turned on, it will read 0.7A. The current delta for turning the SIU on is 0.6A.
        You can do the same for the DAQ feed for the PDU and GASU.
      • How to issue LMAINFEEDON command?
        You should be able to issue the LMAINFEEDON command more than once (can you?) and you should be able to turn on primary GASU first followed by PDU0. These will be separate calls to LMAINFEEDON and you should read the BPU current on the DAQ feed before and after you turn each on and see that the difference is appropriate.
        Yes, PDU on is a separate command (to LMAINFEEDON)
        GASU on is also a separate command.
      • Don't worry about LTC_init for now. LTC is undergoing some changes, so it doesn't pay to worry about it.
      • What are the CAL and TKR bias voltages supposed to be set to upon power up? Should they be the same as the current values in the clean room? What is their nominal value?
        Looks like Rich gave you an answer to that.
      • Testbed doesn't model CAL Baseplate temperatures. Why not?
      • Testbed doesn't seem return valid values for TKR T1
        I'm hoping you have an answer from Owen on these?
      • Does the ACDPowerOn Command enable the converters inside the GASU?
        Yes, it should.
        If so, why is there a separate step for enabling the converters?
        That's Rich's mistake. Just use ADCPowerOn.
      • What is the nominal value for the bias voltage for the ACD?
        No clue
      • What are the proper ranges for all of these values?
        Systems will provide, but they haven't yet.
  • Questions
    • It is not clear what the test script should do if one of the prerequisite/verification tests fails. Should it immediately abort the test or should it run all the prerequisite/verification steps and if at least one of them failed then abort the test?
    • Another uncertainty is where we need to set the SIU/DAQ paths (cross-strapping). That is where do we need to call vsc.siuSelect(...) and vsc.daqSelect(...) which sets the AA, AB,... etc. redundant or primary paths? Should this come from some sort of schema/configuration file?