Crate Power Supplies
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Not much will work unless the power supplies for the crates are on. The supplies are all located in our rack along the west wall out in the WAH. Each gets its AC through a breaker along the top of the racks. These breakers can be used to lock out the supplies when working on the crates. The power supplies of all the crates are controlled through CANBus. The controller is on the second floor of the south platform. The controller has two branches in use, the EEMC on one and the barrel EMC on the other. It is not uncommon to have to reboot this controller and that affects both detectors. Monitoring and control of the power supplies is accessed by clicking on the green box labeled POWER on the main GUI. This displays our 2 crates and the 6 power supplies

Table of Endcap crates and FEE:

Crate	Devices in Crate
90	Slow controls. VxWorks processor and Radstone (HDLC)
91	MiniDaq processor and tower data collector
92	FEE crates 3 & 4 (Note: supplies are split in "halves", one for each crate)
93	FEE crates 5 & 6
94	FEE crates 1 & 2
95	MAPMT boxes for sectors 4, 5, 6 & 7 (Note: dual supplies, each "half" separately powers a distribution panel for two sectors comprising 8 boxes)
96	MAPMT boxes for sectors 8, 9, 10 & 11
97	MAPMT boxes for sectors 12, 1, 2 & 3

A green light in the center-bottom of each crate image on them should mean they are on and working. You can open a more detailed view of each crate (one at a time to avoid overloading the VxWorks computer memory) by clicking on the pinkish box that has a square in it, and then clicking on the first line in the expanded pink box, vme-xx where xx is the crate number for the box you clicked. You will see gauges for the voltages and currents, fan speeds, temperatures and an on/off button. Note cycling the power will reset components in those crates often requiring you to reconfigure/reboot those devices. This may either be an intended or unintended consequence of cycling the power. When you click the On button you should see needles come up to voltages such as 5V, 12V etc and fan speeds increase to ~3000 rpm. Likewise the Off button should cause these to go to zero. When at the proper voltages and currents the needles and values are green, when a little off they are yellow and if really wrong they go red and the supply is likely to trip off. These levels are sent to the slow controls alarms and the detector operator will get notified about them.

There are hardware voltage and current over and under limits set in the supplies themselves. For crates 92-97 these can be viewed and chan>ged (experts only please! i.e. in consultation with Gerard) by clicking on the pink box and selecting the experts page.

CANBus can be rebooted but this will also affect the barrel and the FPD West HV control. If you have problems communicating with the supplies (usually indicated by all crates missing their green dot) this may be necessary but should be coordinated with the barrel and FPD guys. This takes 10 minutes and everybody is locked out during this time, but the crates should stay in their current state while this happens.

Log on to
ssh sysuser@sc3.starp.bnl.gov pw:[ ]
telnet scserv 9040
Hit a few enters to get prompt
at prompt type reboot
^] to get telnet prompt
then type quit

Note you could log in from anywhere but it is easy to leave the telnet active and if someone else needs to get in they need to know where to find your process (easy if always on sc3) to kill it.)

If you can't get in it may be that the barrel is logged in. You will have to get them to log out or do it from their computer.