The systems that have an alarm are the Fastbus crate, the Lecroy high voltage mainframe, the Camac crate controls VI, and the high voltage controls VI. Each one of these systems has an auditory alarm, and the Labview VI’s also have visual alarms. In the event of one these alarms going off, the person responsible for the system should be notified.

The only known case for the Fastbus crate to sound an alarm is when the power to the back panel of the crate was disconnect by the displacement of the safety bar, which run along the bottom of the modules. If the Fastbus does give an alarm, take note of the voltages and currents on the front panel by dialing through the digital display. Turn off the DC power by hitting the DC off button. The safety bar should be checked to see if it is resting properly, not allowing the modules to be pulled out. Turn the DC power back on and listen for an alarm. If none sounds, the Fastbus should be fine. If the alarm persists, repeat the steps above again. Andrei, Erik, and Edmundo should be called, and all action should be noted in the logbook.

The final alarm is the Camac controls communication error warning that will appear on the same computer as the high voltage trip alarm. This warning occurs there is a problem in being able to communicate to the plastic Camac crates. The major reason for this occurring is that the crate is off. If the tunnel is open, check the status of the Camac crates, making sure that they are on and their status is OK. A good initial check to see if the alarm was only an anomaly is to press the "Read Out All Crates" button. If this operation performs correctly, then there is nothing to worry about.. To know that the operation performed properly, the X and Q values have to be valid , and the settings need to be other than a baseline value.  The Camac crates should have continuous power to them since they are hooked up to a UPS each, whose information is displayed on the counting house portal on the web. Any problem with the UPS’s will be monitored through the silicon slow controls VI. If everything checks out OK, expect that the VI still producing an alarm. Restart the VI.