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AdV-COM (AdV commissioning (1st part) )
mwas - 8:04 Thursday 20 September 2018 (42740) Print this report
Comment to ITF Recovery (42737)
Figure 1:
The fast shutter closing is due to the B1 PD2 ADC communication problem that mixes samples from B1 PD2 and B5 PD1/PD2.
This creates artificial flashes on B1 PD2 that trigger the fast shutter.

Figure 2:
B7_PD2 is systematically closing the shutter at 10mA of current draw. The configuration file correctly states that it should be closing at 50mA for B7_PD2 and at 10mA for B7_PD1. Probably the two have been mixed by PD firmware update.
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