Reports until 13:20, Friday 25 April 2014
H1 SUS (INS, SUS)
richard.mccarthy@LIGO.ORG - posted 13:20, Friday 25 April 2014 (11573)
ETM-X ESD Power up
Finally installed all of the cabling and interlock boxes for the ESD drive.  There is a short cable at the feed through that goes to a current limiting resistor box.  From that box a 5 conduct cable with SHV connectors goes to the ESD amplifier.   The ESD amplifier has +-430V dc and +-18v dc supplied to it.  The HV supply is interlocked to a Vacuum gauge on the chamber.  

One item of note for the installation is the SHV coax cable label 1 goes to ESD amp port 3 and Coax cable 3 goes to ESD amp port 1.  I have used sharpie to mark this.

If the vacuum gauge trips the HV supply or if we have a power outage the HV supplies need to be switched on by hand.  The +430 Volt supply was found in Sink mode.  I am not sure how it arrived in this state because you would have to program the unit to do this and when the unit was turned on this was not done.  WE WILL have to track this to see if it is a problem. 

Before connecting the unit to Vacuum I checked the output values.

With See Table on attached pdf


								

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