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Operation
Running services
- If on, turn off NIM crate to disable interlock (otherwise chiller won't start)
- Turn on SVT power supply crate (turn key to "local on"), make sure red "interlock" light comes on (i.e. tripped)
- Set flow manifold valves
- Start chiller (power button on front panel)
- Turn on NIM crate, make sure Arduino's green "ON" light and flow switch's red "flow above threshold" light turn on, SVT power supply's red interlock light turns off
- Do stuff to start power and DAQ
Running tracker with CODA
- Login to tracker@ppa-pc88427 and open a terminal
- Setup environment: $cd /u1/software/daq && source setup_env.csh
- Kill processes related to the tracker and CODA (if any is running): $ cd /u1/software/scripts && StopLocalCodaAll
- On desktop #1:
- $ cd /u1/software/daq && RestartTrackerDaq
- $StartExpertGui
- Configure the SVT using the Expert GUI:
- Hard Reset => Load Settings ("config/coda_defaults.xml")=> Load Settings ("config/coda_groupC.xml")=>Soft Reset
- You should see good sync (#apv's depends on what is connected)
- On desktop #2:
- open a terminal and setup environment: $cd /u1/software/daq && source setup_env.csh && cd /u1/software/scripts/
- $ ./StartLocalCodaAll
- You should see three terminals: Run Control Platform, coda master and trackerRoc and one coda master GUI
- Select "coda" in the coda master GUI => opens a new coda master gui where you need to enable buttons
- Click Event Builder in the coda master gui => should open a smaller gui
- Click Run Control in the coda master gui => should open the large run control gui
- Click: connect, Configure, Download, Prestart (check progress in trackerRoc (apv sync status) and in run control gui for each step).
- Run with Go.
- To look at the data being taken go to desktop #1:
- $cd /u1/software/daq && source setup_env.csh && StartOnlineGui
SVT Layout in Lab
Side in lab (from chiller side) |
Flange |
Cooling loop |
"away" |
|
"away" |
"same" |
|
"same" |
|
|
|
Systems
Power
CAEN SY1527
Serial console
Serial port is connected to Windows desktop; run HyperTerminal (Start/Prorams/Accessories/Communication/HyperTerminal) and open the "CAEN SY1527" shortcut (set to COM1, 9600 baud, hardware flow control).
Instructions
In the current setup:
Slot |
PS |
Type |
0 |
A509 |
DVDD for all hybrids |
3 |
A509H |
AVDD, V125 and bias |
6 |
A509H |
AVDD, V125 and bias |
9 |
A509H |
AVDD, V125 and bias |
Notes/remember:
- A509 BIAS is not used
- A509H last two channels are not used for any hybrid: ch.07 and upwards on slot 9 in this setup.
Mapping between the SY527 slots and channels to hybrids:
Cooling
Chiller
Polyscience 6506T
Max outlet pressure set to 40 psig using internal pressure bypass
Typical flow:
Setting |
Flow (GPH) |
Pinlet (psi) |
Poutlet (psi) |
"Away" loop |
22 |
30 |
10 |
"same" loop |
|
|
|
Both |
25 |
26 |
16 |
Test of serial port (serial_hps_chiller.ino )
Interlock board
Arduino Leonardo (http://arduino.cc/en/Main/ArduinoBoardLeonardo)
Source code: serial.ino (serial_hps_svt.ino)
Need micro-USB cable to reprogram. Software is already installed on Windows laptop.
Inputs:
- HTM2500LF temperature+humidity sensor inside Lexan box
- Flow switch in cooling system return line
- RS-232 connection to chiller - status, set T, measured pressure/flow/T
Thresholds:
- Ambient T inside SVT Lexan box < 25 C (set in Arduino script)
- Ambient RH inside SVT Lexan box < 5 % (set in Arduino script)
- Cooling system flow > 20 GPH (adjustment screw on flow switch)
Logic:
- Check inputs every 1 s; if any input is abnormal, trip and stay tripped (must reset Arduino board to clear)
Outputs:
- RS-232 to chiller: if tripped, send "stop" command every 1 s
- Interlock to CAEN crate (5V normal, 0V tripped) - trip turns off all outputs immediately
- Prints inputs to USB serial connection every second (if plugged in)