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AdV-PAY (NE and WE Payloads)
Boschi, Majorana, Ruggi, Sposito - 15:50 Tuesday 18 February 2020 (48480) Print this report
End Towers Marionette Relay Box Installation

In order to perform tests on the actuation noise, relay boxes have been installed, this morning, at WE and NE and connected to the marionette coils (2 for each tower) used to actuate along z. The associated VPM sections that allow to control the switches are CoilsWEMARTest and CoilsNEMARTest

The possible operating modes are

  • LowNoise1: short circuit (standard configuration for science mode)
  • LowNoise2 P1: 4.4 kOhm in series with channel 1, short circuit on channel 2
  • LowNoise2 P1P2: 4.4 kOhm on both channels.

Operating modes have been verified with DC signals and are working properly.

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Comments to this report:
Boschi - 14:36 Tuesday 03 March 2020 (48604) Print this report

Given the negative results of the tests (see entry #48493), the relay boxes have been disconnected from the marionettes and turned off, this morning. The previous cabling setup was therefore restored.

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