EKSMA OPTICS PS-170 User manual

HIGH VOLTAGE POWER
SUPPLIES
PS-170
PS-2x85
Technical Description
Rev. 2212
2022
Lithuania

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CONTENTS
CHAPTER 1 WARRANTY ..................................................................................................................... 1
1.1. WARRANTY STATEMENT ....................................................................................................................... 1
1.2. SERVICE CONTACT INFORMATION ............................................................................................................ 1
CHAPTER 2 SPECIFICATIONS............................................................................................................... 2
2.1. GENERAL INFORMATION ....................................................................................................................... 2
2.1.1. Models .................................................................................................................................... 2
2.1.2. Main Components ................................................................................................................... 2
2.2. TECHNICAL SPECIFICATIONS ................................................................................................................... 3
CHAPTER 3 DEVICE LAYOUT ............................................................................................................... 4
CHAPTER 4 SAFETY ............................................................................................................................ 7
CHAPTER 5 QUICK START GUIDE ........................................................................................................ 8
5.1. GROUND THE HV POWER SUPPLY ........................................................................................................... 8
5.2. SHORT TOGETHER PIN „OFF“ (#6.4) AND „GND“ (#6.2) ............................................................................ 8
5.3. SUPPLY +24V POWER .......................................................................................................................... 8
5.4. SET REQUIRED OUTPUT HV ................................................................................................................... 8
5.5. CONNECT THE LOAD ............................................................................................................................ 8
5.6. SWITCH POWER SUPPLY ....................................................................................................................... 9
CHAPTER 6 CONTROL VIA CAN ......................................................................................................... 10
6.1. CAN .............................................................................................................................................. 10
CHAPTER 7 CAN BROWSER SETTINGS .............................................................................................. 11

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LIST OF FIGURES
FIGURE 1. OUTLINE DRAWING AND DIMENSIONS OF THE HV POWER SUPPLY ................................................................ 4
FIGURE 2. FRONT CONTROLS OF THE HV POWER SUPPLY ......................................................................................... 5
FIGURE 3. REAR CONTROLS OF THE HV POWER SUPPLY ........................................................................................... 5
FIGURE 4. ON/OFF INPUT INTERNAL LAYOUT ...................................................................................................... 8
FIGURE 5. CAN-USB CONVERTER ................................................................................................................... 10
LIST OF TABLES
TABLE 1. MODELS ......................................................................................................................................... 2
TABLE 2. MAIN COMPONENTS .......................................................................................................................... 2
TABLE 3. TECHNICAL SPECIFICATIONS.................................................................................................................. 3
TABLE 4. CONTROLS AND CONNECTIONS OF THE HV POWER SUPPLY ........................................................................... 6
TABLE 5. BASIC CAN BROWSER SETTINGS ......................................................................................................... 11
TABLE 6. ADVANCED CAN BROWSER REGISTERS ................................................................................................. 11

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Chapter 1
WARRANTY
The HV power supplies are protected by a one-year warranty covering labor and parts. The
warranty enters into validity since the shipment date. Any evidence of improper use or
unauthorized repair attempts voids the warranty.
For service/warranty requests, please contact:
EKSMA OPTICS, UAB
c/o EKSMA Optics, UAB
Dvarcioniu st. 2B
LT-10233 Vilnius, Lithuania
Phone:
Fax.:
E-mail:
Website:
[phone]
[phone]
[e-mail]
www.eksmaoptics.com

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Chapter 2
SPECIFICATIONS
The table below lists standard options. Custom voltage modifications may be delivered on
request.
Table 1. Models
Catalog number
HV output
tuning range, kV
Maximal HV current, mA
PS-170-1.8
+0.7 … +1.8
95
PS-170-2.6
+1.0 … +2.6
65
PS-170-3.6
+1.4 … +3.6
48
PS-2x85-1.5
±0.6 … ±1.5
±56
PS-2x85-1.8
±0.7 … ±1.8
±48
Table 2. Main components
Component
Quantity
Notes
High voltage (HV) power supply
1
-
CAN-USB converter with cables (option)
1
-
Technical description
1
-

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Table 3. Technical specifications
Parameter
Value(s)
PS-170
PS-2x85
Output voltage polarity
Positive
Bipolar
Maximum HV output power at
maximal output voltage, W
170
2×85
Supply voltage DC requirements
23.5…26 V, 8.3 A
Output voltage ripple, %
< 0.5
Output voltage control
CAN/Internal potentiometer
Maximum ambient temperature
for operation, °C
45
Dimensions, mm
152x80x58, see Figure 1. for details
Weight, g
530

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Chapter 3
DEVICE LAYOUT
Figure 1. Outline drawing and dimensions of the HV power supply

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Figure 2. Front controls of the HV power supply
Figure 3. Rear controls of the HV power supply

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Table 4. Controls and connections of the HV power supply
#
Port
1.1
2 pins for +24V input
1.2
2 pins for GND input (-24V)
2
LED HV output on
3
LED +24V
4
Potentiometer for HV tuning in potentiometer control mode
5
CAN connector
6
Control connector
6.1
“-Ih” test point for -HV current (1V = 100mA)
6.2
“GND”
6.3
“OUT” indication point for HV output (HV off - +5V; HV on- 0V)
6.4
“OFF” control input to enable HV output (connect to GND to allow HV output)
6.5
“Uhv” test point for +HV output (1V = 1kV)
6.6
“+Ih” test point for +HV current (1V = 100mA)
7
CAN terminator
8
+HV output
9
GND output
10
-HV output (+HV output for PS-170)
11
Grounding screw

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Chapter 4
SAFETY
Equipment is designed to be safe under normal environmental conditions according to 1.4.1.
61010-1@IEC:2010 (Safety requirements for electrical equipment, control and laboratory use):
1. indoor use;
2. altitude up to 2000 m;
3. temperature 5˚C to 35˚C;
4. maximum relative humidity 80% for temperatures up to 31˚C decreasing linearly to 50%
relative humidity at 35˚C;
5. POLLUTION degree 1: no POLLUTION or only dry, non-conductive POLLUTTION occurs.
Warning:
The safety of the system incorporating driver and HV power supply is the
responsibility of the assembler of the system.
Operating the power supply is allowed to persons acquainted with the operation manual and
having permission to deal with voltages over 1000 V.
Do not remove unit covers while power cable is connected to the mains (if applicable).
WARNING
Direct contact with the exposed inner parts of the system when it is powered
may cause human injuries or death.
Do not operate the unit until it is grounded and the load is connected.
Do not use the unit if any defects have been detected.

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Chapter 5
QUICK START GUIDE
Provide the proper ground connection to ground screw (#11) of HV power supply or grounding
by mounting holes.
Connection is to enable HV output. This function has priority against CAN command “Power
switch-On”. The input while connected to dry contact, can be used as remote start/stop function
or interlock control.
Figure 4. ON/OFF input internal layout
Connect the +24 VDC power supply to the HV power supply. See Table 3 for requirements.
HV output voltage can be controlled by:
1. Internal (#4) potentiometer. Output voltage and current monitoring is possible on (#6.1,
#6.5, #6.6) connector pins. 1V pro rata 1kV voltage and 100mA HV current.
2. Using CAN, see CHAPTER 6 CONTROL VIA CAN for details.
Turn off +24V DC power supply.
Connect the load to HV power supply output. Check that the connection cables are firmly
attached.

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Bipolar versions of HV power supply need to be loaded symmetrically. Acceptable difference of
positive and negative output current is no more than 30%.
Switch the +24 VDC power on. The green LED (#3) should light continuously. It is blinking, if
supply voltage is below +23.5V. Use the thicker wires to reduce voltage drop, or increase the DC
supply voltage to compensate it for normal operation.
VDC can be safely increased up to +26V.
Red LED lights while HV output is switched on.
Power supply stops HV output if output current exceeds maximal value. To restart operation, tur
off and turn on of VDC is required. The restart can be done using CAN command OFF and
following ON.

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Chapter 6
CONTROL VIA CAN
CAN-USB converter is recommended for operation. It can be ordered from Eksma Optics. It
comes together with “CAN Browser” software and a set of required cables.
Figure 5. CAN-USB converter
1. Connect CAN-USB converter to PC and HV power supply by cables.
2. Turn on +24V power supply.
3. Install and open CAN Browser.
4. Set required settings (see CHAPTER 7 CAN BROWSER SETTINGS).

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Chapter 7
CAN BROWSER SETTINGS
Table 5. Basic CAN Browser settings
Setting
Description
Command
Toggle the HV supply output ON/OFF
Uset
Set HV output value.
Set HV knob control enable
Off – control HV via CAN interface
On – control HV by potentiometer.
Set HV knob minimum set
voltage
Set minimum HV output voltage for potentiometer control.
Set HV knob maximum set
voltage
Set maximum HV output voltage for potentiometer control.
After each command need to push green cursor and button “Program”.
Table 6. Advanced CAN Browser registers
Setting
Description
Status
Off- HV output is turn off.
On- HV output is turn on.
Read HV voltage
Display HV output voltage.
Read HV+current
Display positive current of HV supply output.
Read HV+current
Display negative current of HV supply output.
Set voltage limit
Display input +24 voltage.
Set HV knob read level
Display trimmer position.