ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:	Sat Mar 29 11:14:50 2025
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> 11 am: Changed configuration of power source for AIDA PSU (see paper logbook). Now both cables with power for > USB relay are connected to the 'C' unit of the F11 power supply. They use different socket pads, and share them > with power cables for raspberry pi and NIM crates. Situation intermediate to what we have on Tuesday. > > Resolution of pulser peaks improved slightly w.r.t. yesterday, but still we have the high frequency noise > (500kHz) present (attachments). > > 12 pm: We found the FEEs crash (loose connection/synchronization) when we enable the fast discriminators (see > attach. 1). This could be in the case when some of the discriminator channels are triggering at a fast rate > (noise above threshold). We observed the same pattern a few times. > > 5 pm: During all afternoon we've not been able to put AIDA in an operational state. There is always one or more > FEEs that do not synchronize or loose connection. Also the fuse of the PSU broke and we had to replace them. > Source for state of the system could be related to current configuration of PSU power, or the presence of noise > we observed in last couple of days. > > > 6 pm: Back to configuration of PSU from yesterday: > > F11 power supply 'C' ---->----> PSU relays 1-4 > \| > \|---> NIM crates, RPI, etc > > > F11 power supply 'B' ----> PSU relays 5-8 > > > > Started by checking the options. Loaded Options 2016May03-20.44.33. It looks like settings of ASICs are not the > standard ones (e.g. threshold 47). Tried restore settings in Save/Restore option. It worked for all but NNAIDA25 > (fri22.png), but other have proper settings (but values of #25 also look ok!). > > Performed 'Check ASIC clock timestime' in systemwide checks: all failed (fri23.png) > Performed 'Check ADC calibration' in systemwide checks: all passed, except for nnaida26 (fri24.png) > Master Timestamp Control -> Perform ReSYNC: worked for all modules except nnaida26 > > > we lost connection to 26..... (fri26.png) > > Attempted ADC calibration of NNAIDA26 (FADC align and control) failed (fri27.png) > > Disabled NNAIDA from Run Control, and Reset all modules. But now after reset the setup button does not appear, > just Reset one as if the action had no effect. > > Tryed restore settings again. Again nnaida25 returned problem, but yet again nnaida26 is the one that actually > doesn't have proper ASIC settings. Confirmed this with 'Check ASIC control' (fri29.png). Is there an error in the > error report message of 'Restore Settings'? > > We checked cable connections (HDMI, ethernet), and afterwards NNAIDA26 keeps giving problems. We give up on it, > remove it from DAQ configuration (https://elog.ph.ed.ac.uk/AIDA/189), and system nos seems to be runing ok > without it. > > > 8 pm: disconnected all remaining cables from MACB->other crates (only daq correlation in macb1), and went back to > yesterdays configuration of PSU power with all power from 'C' > > F11 power supply 'C' ---->----> PSU relays 1-4 > \| \| > \| \|---> PSU relays 5-8 > \| > \|--->---> NIM crates, RPI, etc Encoding: HTML ELCode plain Suppress Email notification

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