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Rack Power ONOFF procedures » History » Version 4

Sowjanya Gollapinni, 08/21/2015 03:19 PM

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h1. Rack Power ONOFF procedures
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*Step 0:* go on the platform, with all requirements: Hard hat, closed-toed boots, and most importantly, Two-person rule!
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h2. Readout Electronics Racks Power-Off/On Procedure for Planned Power Outages
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*Step 1:* Make sure the software DAQ/read-out processes are not running. In other words, this means that the platform power off procedure should ONLY be done AFTER the DAQ/computer room racks are powered down. Confirm from the On-call DAQ expert and the uB operator on shift that this is the case before proceeding.
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*Remember, the following racks should be powered off in the following order, and following indicated steps*
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*Side note:* For reference, we are following the reverse of the prescription as written in
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 http://microboone-docdb.fnal.gov:8080/cgi-bin/RetrieveFile?docid=3825&filename=TPC-R1_Power-up.pdf&version=10 
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*1. TPC-R2 through TPC-R5 power off:*
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a. Switch off both Wiener PS using the red toggle switch on the front panel (push down for 3 seconds).
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b. Switch off the middle (CB2) and lowest (CB3) circuit breaker by accessing the back side of the rack; verify fans are off.
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c.  Switch off top (CB1) circuit breaker; verify NetGear network switch inside rack is off.
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d. Switch off RPS slow controls using front panel switch on the slow controls panel. The +5V, +3.3V, and RPS Status LEDs should turn off.
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e. Switch off the RPS (use switch behind the RPS unit). Use a step stool to reach, if needed; verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
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f. Only the AC Input Good LED on the AC Switch Box should be ON.
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*2. TPC-R1 power off:*
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a. Switch off Wiener PS using the red toggle switch on the front panel (push down for 3 seconds).
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b. Switch off the lowest (CB3) circuit breaker; verify fans are off.
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c. Switch off the middle (CB2) circuit breaker; verify NetGear network switch inside rack is off.
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d. Switch off RPS slow controls using front panel switch on the slow controls panel. The +5V, +3.3V, and RPS Status LEDs should turn off.
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e. Switch off the RPS (use switch behind the RPS unit). Use a step stool to reach, if needed; verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
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f. Only the AC Input Good LED on the AC Switch Box should be ON.
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*3. LIZ Rack power off:*
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a. Switch off the two NIM bins using their front panel switches.
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b. Switch off the function generator (Strobe pulser) using its front panel on/off button.
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c. Switch off the fan switch on the fan front panel; verify the fan is off.
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d. Switch off the middle (CB2), top (CB1), and bottom (CB3) circuit breakers. 
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e. Switch off RPS slow controls using front panel switch on the slow controls panel. The +5V, +3.3V, and RPS Status LEDs should turn off.
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f. Switch off the RPS (use switch behind the RPS unit). Use a step stool to reach, if needed; verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
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g. Only the AC Input Good LED on the AC Switch Box should be ON.
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*4. PMT/TRIG Rack power off:*
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a. Switch off Wiener PS using the red toggle switch on the front panel (push down for 3 seconds).
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b. Switch off the NIM bin using its front panel switch.
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c. Check that the PMT HV (CB3) bottom circuit breaker is off. If not, stop and call a PMT HV expert. 
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d. Switch off the middle (CB2) circuit breaker; verify the fan is off.
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e. Switch off the CB1 circuit breaker; verify NetGear network switch inside rack is off.
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f. Switch off RPS slow controls using front panel switch on the slow controls panel. The +5V, +3.3V, and RPS Status LEDs should turn off.
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g. Switch off the RPS (use switch behind the RPS unit). Use a step stool to reach, if needed; verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
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h. Only the AC Input Good LED on the AC Switch Box should be ON.
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5. Make an elog entry that the readout electronics racks have been successfully powered off.