Page History

Notes

• The following is from Jana answering some of my questions:

  No Format -

  • 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.

  • clue

  • What are the proper ranges for all of these values?
    Systems will provide, but they haven't yet.

Questions