HV Power Supply CAEN 1527 Control

Running the PS

1. Plug it in

2. Turn the main switch on the back of the PS on (switch on I)

3. Turn the Key on the front to the position Local

4. Check that the switches are on local enabled and interlock closed.

Assigning an IP address to the PS

1. Connect a standard PC keyboard to the PS (socket KBD on the front).

2. Press any key, then login as admin (password admin).

3. Go to the Setup menu, select the submenu Communications and choose TCP/IP Settings.

4. Enter 137.138.179.97 for the IP Address and 255.255.0.0 for the IP NetMask. If you leave the Gateway at 0.0.0.0 the PS will only be visible inside the CERN network.

5. Select OK to confirm the settings. 

Power Supply control 

For Computer control: Connect to the power supply with telnet trt-barrel-ps 1527. The window you get is the same as on the screen of the PS.

When you are at the login window, increase the height of the window, otherwise the status line will be missing.

Login with username/password user/user or 1527/1527.

Use the arrow keys to navigate, the Tab key to change back to the menu and the Enter key to select something. In the main menu you will find the Channels submenu, where you can set voltages and current limits and see the channel status. After you have changed a value confirm it with Enter or Space. To toggle between yes/no or on/off, use Space. When a channel is turned "on" the LED CH-ON on the top right corner of the PS is on.

Make sure that the trip time Trip is set to 0.0s and the software maximum voltage SVMax is set to 1560V (or another value slightly above your used maximum)

Usually V0SET and I0SET are the used values (indicated by V0 I0 in the status line at the bottom of the window).

When your done use Tab to go back to the menu and on main menu select logout.

Some comments on the boards

• To change or manipulate boards, shut everything down. Log out, put the key on OFF position, put the main switch (on the back of the PS) in O position.

• On the back of the board, on the HVEN  lemo connector, must be a 50Ohm Resistor.

• To switch between 20uA (Dip-switch 1 = OFF) and 200uA (Dip-switch 1 = ON) maximum current, pull out the board (make sure the PS is turned off and disconnected) and change the Dip-switch #2 on the switch.  The Accuracy is then 2nA for 20uA and 20nA for 200uA.

I/V Monitoring program

Installation of the CAEN OPC Server software

1. Make sure your computer is running Windows 2000 or NT. The software does not run properly for Windows XP!

2. Copy the directory \\Trt-barrel3\C\unzipped\CAEN HV OPC Server 2.5 to your computer or download the software from the CAEN website http://www.caen.it/nuclear/downloads.php (you have to register!). If you download the software, you have to unzip the complete file before you can proceed.

3. Go into the subdirectory CAENHVOPCServer_2.5 and run SETUP (the application with the computer symbol). 

4. Go into the other subdirectory OPCServerConf_1.1.0 and run setup (the application with the computer symbol). 

5. Start the HV OPC Server Configurator and Add the power supply with a name (doesn't have to be the network name) and its IP number for a TCP/IP connection: (trt-barrel-ps, TCP/IP, IP address 137.138.179.97). If everything has worked, the Status should change to Ok after a few seconds. Remark: If any client program is connected to the Server (e.g. the LabView HV monitoring), you cannot add or change the PS settings. In this case stop the client program first.

HV-Monitoring program 

• Server Id: Enter the name of the server of the PS. In this case: CAEN.HVOPCServer . If you want to check if the server is connected, open the program in Start/Programs/CAEN/HV OPC server configurations.

• Server Timeout: Turns red when the server is not found, check the connections and the Server ID.

• Read Int (ms): Read interval in ms. !Be aware that it is not to short when Write to file is on, file might get to big!

• Stop: Stops the monitoring.

• Board#: Set the board you are using. !The numbering of the board starts on 0!

• Channel#: Set the channel you are using. !The numbering of the channel starts on 0!

• Write to file: On: Creates and writes the data into a file. If file exists, it will add the data, so be sure you erase the previous one or change the filename if you don't want the whole data together. Off: No File and no writing.

• File Name: Insert the Module Type and # and the Add in (if there is no Add in, make sure you have no spaces). The path for the data is: \\cern.ch\dfs\users\t\trtbar\HV-Monitoring\HV-Data

• I / V History: Plot of current (voltage) vs. time. The scale is on auto scale. Zooming in:  click with the right mouse pad on one of the axis, and deactivate the auto scale of the X-axis, then click on the middle button of the graph pallet (centered below the graph) and zoom in... After zooming, don't forget to activate the auto scale again to show the hole data.

• I / V Reads: Reads the values at a certain date and time.

• Status: Shows the status of the PS. When 1 then its on and on normal functionality, when its on 512 the channel has Tripped. When a channel trips, the alarm goes on and the boolean Trip lights in green or red.

• Error  I / V: Lights red when it has no or a wrong input. Check that you have a reasonable board # and channel # and that the server is connected.

HV-Files and colors

Full Path of HV-monitoring directory: \\cern.ch\dfs\users\t\trtbar\HV-Monitoring\HV Programs

File Name	Color	Where	Use (*)	Outcoming file example (M3.05)
HV-Mon1.vi	orange	HV-Check station	Front: channels 1&2	HV-condM305.txt
HV-Mon2.vi	green	HV-Check station	Back: channels 3&4	HV-condM305-1.txt
HV-Monsect1-(1-6).vi	blue	HV-Conditioning	Channels 1-6	HV-checkM305.txt
HV-Monsect1-(7-12).vi	violet	HV-Conditioning	Channels 7-12	HV-checkM305-1.txt

(*): Remember that the Power-supply numbers the channels and Boards starting at 0.