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Rack Power ONOFF procedures » History » Version 58

Version 57 (David Caratelli, 08/05/2018 04:49 PM) → Version 58/93 (David Caratelli, 08/14/2018 01:31 PM)



h1. Rack Power OFF procedures for planned power outages

*%{color:red}@Before a power-outage occurs@%*: alert Cryo engineers of planned MicroBooNE outages 1 week in advance.

*Who does this:* In the normal mode of operation, it is expected that ONLY sub-system experts (most probably on-call experts) will do the power off for their respective sub-systems. It is only in their absence and upon approval from the run coordinator that others will be allowed to do this.

*Step 0:* Go on the platform, with all requirements: Hard hat, closed-toed boots, and most importantly, Two-person rule!

h2. %{color:green}@Readout Electronics Racks Power-Off/On Procedure:@%

*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/read-out processes are brought down gracefully by the DAQ experts. Confirm from the On-call DAQ expert and the uB operator on shift that this is the case before proceeding.

*%{color:red}@Remember, the following racks should be powered off in the following order, and following indicated steps.@%*

*Side note:* For reference, we are following the reverse of the prescription as written in
http://microboone-docdb.fnal.gov:8080/cgi-bin/RetrieveFile?docid=3825&filename=TPC-R1_Power-up.pdf&version=10

*1. TPC-R2 through TPC-R5 power off:*
0. Make sure DAQ is down.
a. Switch off both Wiener PS using the red toggle switch on the front panel (gently push down the toggle switch for 3 seconds until the display turns off).
b. Switch off the middle (CB2) and lowest (CB3) circuit breaker (circuit breaker switches have blue LEDs lit on them) by accessing the back side of the rack; verify fans are off.
c. Switch off top (CB1) circuit breaker; verify NetGear network switch inside rack is off.
d. Switch off Slow controls using front panel switch on the slow controls panel (gently pull the Chassis on/off switch and press down). The +5V, +3.3V, and Heart Beat LEDs should turn off.
e. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
f. Only the AC Input Good LED on the AC Switch Box should be ON.

*2. TPC-R1 power off:*
0. Make sure DAQ is down.
a. Switch off Wiener PS using the red toggle switch on the front panel (gently push down the toggle switch for 3 seconds until the display turns off).
b. Switch off the lowest (CB3) circuit breaker; verify fans are off.
c. Switch off the middle (CB2) circuit breaker; verify NetGear network switch inside rack is off.
d. Switch off Slow controls using front panel switch on the slow controls panel (gently pull the Chassis on/off switch and press down). The +5V, +3.3V, and Heart Beat LEDs should turn off.
e. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
f. Only the AC Input Good LED on the AC Switch Box should be ON.

*3. LIZ Rack power off:*
0. Make sure DAQ is down.
a. Switch off the two NIM bins using their front panel switches.
b. Switch off the function generator (Strobe pulser) using its front panel on/off button.
c. Switch off the fan switch on the fan front panel; verify the fan is off.
d. Switch off the middle (CB2), top (CB1), and bottom (CB3) circuit breakers.
e. Switch off Slow controls using front panel switch on the slow controls panel (gently pull the Chassis on/off switch and press down). The +5V, +3.3V, and Heart Beat LEDs should turn off.
f. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
g. Only the AC Input Good LED on the AC Switch Box should be ON.

*4. PMT/TRIG Rack power off:*
0. Make sure DAQ is down. Check explicitly with PMT expert that PMT HV is off.

a. Switch off Wiener PS using the red toggle switch on the front panel (gently push down the toggle switch for 3 seconds until the display turns off).
b. Switch off the NIM bin using its front panel switch.
c. Check that the PMT HV (CB3) bottom circuit breaker is off. If not, stop and call a PMT HV expert.
d. Switch off the fan underneath the trigger NIM bin.
e. Switch off the middle (CB2) circuit breaker; verify the fan is off.
f. Switch off the CB1 circuit breaker; verify NetGear network switch inside rack is off.
g. Switch off Slow controls using front panel switch on the slow controls panel (gently pull the Chassis on/off switch and press down). The +5V, +3.3V, and Heart Beat LEDs should turn off.
h. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
i. Only the AC Input Good LED on the AC Switch Box should be ON.

5. Make an elog entry that the readout electronics racks have been successfully powered off.

h2. %{color:green}@DRIFT HV rack Power-Off/On procedure:@%

*%{color:red}@First confirm from the On-call Drift HV expert and uB operator on shift that the DRIFT HV is ramped down as per procedure and is at 0 V. Do not proceed without this confirmation.@%*

Step 1: After confirming the above, ensure that the Glassman is at 0 V by looking at the power supply front panel. If the power happens to be off, the voltage is 0.
(At this point, if a power outage occurs, it is ok from a HV health standpoint. The remaining steps are additions for a more graceful shutdown of the entire HV rack.)

a. After confirming Step 1, turn off the Glassman by pushing the orange on/off button on the front of the supply.
b. Turn off the slow controls box by gently pulling the on/off switch on the front left side of the box and pushing it down. The +5V, +3.3V, and RPS Status LEDs should turn off.
c. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
f. Only the AC Input Good LED on the AC Switch Box should be ON.

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

h2. %{color:green}@ZMON box Power-Off/On procedure:@%

a. The ZMON unit is located separately on a single shelf next to the PM01 rack. Turn off the ZMON slow controls box by gently pulling the on/off switch on the front left side of the box and pushing it down.

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

h2. %{color:green}@TPC-PS (subsystem: OnDetPower) rack Power-Off/On procedure:@%

*%{color:red}@The TPC-PS rack power down CANNOT be done until the TPCPS expert has gracefully brought all channels down and turned them off including the Power supply Main Switch. First confirm from the uB operators on shift that this has been done. Once confirmed, proceed with the steps below.@%*

a. Switch off the Wiener MPOD power supply (located on the bottom portion of the rack) by pressing the front panel ON/OFF switch. The front panel display should turn off.
b. Switch off the Calibration Pulsar (needs picture and location in the rack)
c. Turn off the Slow controls box (second box from top). Slightly (and gently) pull the Chasis ON/OFF switch and press down. All LEDs should come down.
d. Now, go to the back side of the rack, and open the back door of the rack and power off the RPS ON/OFF switch located on the back panel of the RPS box (Top most box in the rack). Use step stool if needed to reach the switch.
e. Flip all the Eaton breaker switches down (Eaton breaker switches are located on the right side of each rack with blue lights lit. There are 3 Eaton switches per rack).

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

h2. %{color:green}@Purity Monitor (PM01, PM02, PM03) rack Power-Off/On procedure:@%

+*%{color:red}NOTE: Currently the Purity Monitor is NOT Being Used%*+

h3. Power-off

# Locate the three racks, which are on the platform. They are PM-R1, PM-R2, and PM-R3.
# Turn off the NIM bins in each rack by moving the switch labeled "ON/OFF" to "OFF". If the NIM bin’s power light goes off, you were successful in turning the NIM bin off. If the light stays on, try moving the switch once more.
# Each rack has a Windows server in it. Turn off the PCs by holding down their power buttons (yes, I know). This is the most secure way to turn off the Windows PCs as it does not involve actually logging into the system.
# Turn off the Slow Controls box by flipping the switch on its front panel to the OFF position.
# Go to the back of the rack and turn off the RPS box using the switch located on its back.
# The rack can now be powered-off without causing harm. On the Surge-X power strips located in the top of each rack, press down on the "OFF" portion of the "ON/OFF" button.

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

h3. Power-on

# Locate the three racks, which are on the platform. They are PM-R1, PM-R2, and PM-R3.
# Give the rack electricity by pressing down on the "ON" portion of the "ON/OFF" button on the Surge-X power strip.
# Go to the back of the rack and turn on the RPS box using the switch located on its back.
# Turn on the Slow Controls box by flipping the switch on its front panel to the ON position.
# Turn on the NIM bins in each rack. This is accomplished by doing the opposite of the turn off procedure. Move the "ON/OFF" switch to the "ON" position to turn on the NIM bin.
# Each rack has a Windows server in it. Turn on the PCs by pressing down their power buttons. Allow the disk check to proceed since we turned off the PC in such a hard fashion as described above.
# The flash-lamps in PM-R1 and PM-R2 will need to be set to run again. To do this, take the clear LEXAN™ sheet off of the front of the rack. You’ll need a flathead screwdriver to accomplish this (if you can fit your hand in underneath the LEXAN™ sheet to get to the power supply panel, do that instead). Once that has been removed, open up the brass screen on the front of the Faraday cage. There are two screws for this on the top edge of the brass screen. The front of the flash-lamp power-supply will now be visible. Look for the white, square button labeled "RUN". Press that button. You should see a little, red light next to it. That means your pressing of the button was successful and you wont need to run off with the circus.
# If the Windows servers are back online, call the purity monitor expert on call to turn the purity monitor DAQ on. They will do it remotely.

h3. Power-on issues

There are two potential issues with turning the purity monitors back on. You will be notified and walked through the procedures below by the purity monitor expert if they are needed.

Firstly, the network on the Windows servers sometimes does not come back after startup. The purity monitor expert on call will confirm if this has happened. To fix this, simply unplug the network cable on the back of the server, wait 10 seconds (I suppose it should be a minute to conform to standard troubleshooting procedures, but we're not that patient), and plug it back in.

Secondly, the flash-lamp power supply can sometimes come back in a funny state that does not allow it to run. One of the error message related to this issue is "Error: Capture timeout of the noise data after 300000 ms -- verify trigger 0". This means the flash-lamp can not fire. Here are the instructions on resetting it. -It unfortunately involves taking the side of the rack off and opening up the faraday cage-. If you do this, you must not do anything to alter the alignment of the flash-lamp housing or the fiber going into it. The purity monitor signals are highly sensitive to fiber-lamp alignment.

# Power unit off.
# Power unit on with run function off (don't run the DAQ program or have the electronics module on "Local"). You really don't need to worry about this step.
# Set for frequency display.
# Set frequency down to 0.1 Hz.
# Set frequency up to 75 Hz.
# Set frequency to desired repetition rate, we use 2 Hz.
# Now set the energy level, we use 5,000 mJ.

h2. %{color:green}@LASER racks Power-Off/On procedure:@%

*%{color:red}@First inform from the LASER experts (Michele Weber, Igor Kreslo, Thomas Strauss). They will ensure that the LASER is off and the Laser computers that are in the rack are also gracefully brought down. Do not proceed without this confirmation.@%*
Turning off devices in the rack:
1. Contact a laser expert, who will tell you where you can find the key to open the laser racks.
2. Turn off the main switch of the laser power supply on the front (different from the key)
3. Turn off the NIM crate power
4. Turn off the server if they are still running (knob is in the very right upper corner)
5. Open the laser racks on the back:
6. Turn all switches to the off state on all devices (T-OMG1, T-OMG2, Aperture, Attenuator etc. ) on the power supply box (located about 1m above ground)
7. Turn off the main switch of the device power supply box (located on the back of the box)
8. Turn off the power of the Thermionics motor control unit (blue box, switch is located on the front)
9. Turn off the power of the Heidenhain encoder control unit (grey box, switch is located next to the power cable in the back of the device)
10. Turn off the power supply of the fans in the laser enclosure (lower metallic box), switch is located in the upper left corner.

Turning off slow controls
a. Turn off the slow controls box by gently pulling the on/off switch on the front left side of the box and pushing it down. The +5V, +3.3V, and RPS Status LEDs should turn off.
b. Switch off the RPS (use switch located on the back panel of the RPS unit). Go behind the racks and 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.
c. Only the AC Input Good LED on the AC Switch Box should be ON.

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

Power on:
After turning on slow controls: On both UPS in the rack, unplug the cable with the label EPO (this will allow to power on the UPS). Then power on the lower UPS first, followed by the upper UPS. Turn on the Rack Protection System (located at the top of the rack and switch in the back). The UPS should switch from battery mode to external power within few seconds. After this power up the devices in reverse order (as described above). Between step 3 and 4, plug back in the EPO cable. CAUTION: *Do not turn on the green alignment laser*. This is the switch on the silver panel in the back labeled A-Laser!. It should have a tape to cover it in the closed position. If that is missing, call Thomas/Michele/Igor.

h2. %{color:green}@ MuCS (Muon Counter System) rack Power-Off/On procedure:@%

h2. Powering down the system

To power off the MuCS rack the following steps should be followed by a MuCS expert:
# Ramp down the HV for the PMTs. Set switches on the HV PS to "off" (NOT the "kill") or middle position so that the voltages ramp down slowly.
# Turn off the LV.
# Shut down the laptop.
# Open rear door and flip the power switch on the RPS to the off position (looking from the back of the rack it's at the top right).
# Power off the SurgeX by flipping the switch on the front of the rack.

h2. Powering on the system

To power on the MuCS rack the following steps should be followed by a MuCS expert:
# Power on the SurgeX.
# Open rear door and power on the RPS.
# Power on the laptop. Make sure it boots and logs into the the dcdaq account. Should do so automatically, if not log into that account. This will start a vnc server so that experts can access the machine remotely.
# Turn on the LV. This required both turning on the LV PS and turning on the LV power output. There is a light on the LV PS to indicate if LV is on as well as three LEDs on the front banana plugs to indicate that the LV is on.
# Once the LV is confirmed to be on (LED lights are on) then the HV can be turned on by setting the switches on the HV supply to the "on" (up) position.
# After a reset, you should take a test run (use Ghost mode) to ensure that triggers are coming out unprescaled (top counter) and prescaled (bottom counter). Often the prescaled triggers do not come through and the prescaler has to be reset. To reset the prescaler (second trigger module from left, labeled "Trigger Divider"), set the top counter to 000 and then back to 100 (the nominal prescale factor for MuCS triggers).

h2. %{color:green}@ CRT (Cosmic Ray Tagger) rack Power-Off/On procedure:@%

*Power OFF:*

%{color:red}Before powering off the racks, please refer to the link below to turn off CRT DAQ and bias:
https://cdcvs.fnal.gov/redmine/projects/uboone-operations/wiki/Cosmic_Ray_Tagger_-_Experts_Only%

There are three racks for CRT. They are CRT-DAQ-R1, CRT-DAQ-R2 and CRT-Utility racks.

CRT-DAQ-R1 rack power off:
# Make sure turn off the servers following descriptions in link above. Do NOT use the on/off button which is brutal.
# Turn off slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn off.
# Turn off UPS use its power button. Press the button for about 3 seconds until the green light if off.
# Turn off RPS(use switch on the back). Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
# Now rack is off and only the AC Input Good LED on the AC Switch Box should be ON.

CRT-DAQ-R2 rack power off:
# Make sure turn off the servers following descriptions in link above. Do NOT use the on/off button which is brutal.
# Turn off slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn off.
# Turn off the network switch(use switch on the back). Check the power light on the front is off.
# Turn off UPS use its power button. Press the button for about 3 seconds until the green light if off.
# Turn off RPS(use switch on the back). Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
# Now rack is off and only the AC Input Good LED on the AC Switch Box should be ON.

CRT-Utility rack power off:
# Turn off Wiener PS channel-wisely using slow monitoring which is also described in the link above. If you can not figure it out, go to item (2).
# Turn off Wiener PS channel-wisely using the switch on the front. If you can not figure it out, go to item (1)...sorry, call expert then.
# Turn off Wiener PS using the red toggle switch on the front panel (gently push down the toggle switch for 3 seconds until the display turns off).
# Turn off the NIM crate and its fan(use switch in the front). These two are now put in 'OFF' state.
# Turn off PPS(use switch on the front). Check the blinking blue light is off.
# Turn off slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn off.
# Turn off RPS(use switch on the back). Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are off.
# Turn off the Surge X(use switch on the front). Verify the power light is off.

Once done, let the uB operator on shift know that the power-off is done and make an e-log entry that the rack has been successfully powered off.

*Power On:*

CRT-Utility rack power on:
# Turn on the Surge X(use switch on the front). Verify the power light is on.
# Turn on RPS. Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are on.
# Turn on slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn on.
# Turn on PPS. Check the blue blinking light is on.
# If you need the NIM, turn on the NIM crate and its fan(use switch in the front).
# Turn on Wiener PS use the red toggle switch
# Turn on Wiener PS channel-wisely using the switch on the front. If you can not figure it out, go to item (8).
# Turn on Wiener PS channel-wisely using slow monitoring which is also described in the link above. If you can not figure it out, call expert.

CRT-DAQ-R2 rack power on:
# Check the AC Input Good LED on the AC Switch Box is ON.
# Turn on RPS. Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are on.
# Turn on UPS by the power button on the front. Hold the power button for about 3 seconds. It can take up to minutes for the UPS to warm up.
# Turn on slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn on.
# Turn on the servers(use red button on the front).

CRT-DAQ-R1 rack power on:
# Check the AC Input Good LED on the AC Switch Box is ON.
# Turn on RPS. Verify the AC Output ON, POWER, SENSOR, and ALARM LEDs on the AC Switch Box are on.
# Turn on UPS by the power button on the front. Hold the power button for about 3 seconds. It can take up to minutes for the UPS to warm up.
# Turn on slow control box(use switch on the front). The +5V, +3.3V, and Heart Beat LEDs should turn on.
# Turn on the network switch(use switch on the back). Check the power light on the front is on.
# Turn on the servers(use red button on the front).

After powering on the racks, please refer to the link below to turn on CRT DAQ and bias:
https://cdcvs.fnal.gov/redmine/projects/uboone-operations/wiki/Cosmic_Ray_Tagger_-_Experts_Only

*Make an e-log entry after successfully turning off/ on the system.*