Technical documentation
Last changed on: 26.03.2020

EBS
Bipolar 4 Quadrant High Voltage Module with Common Floating Ground (CFG)
•
•
•
•
•

full 4-quadrant capabilities, usable as bipolar current sink and source
perfect for electron optical systems and capacitive loads
low ripple and noise
hardware voltage and current limit
programmable parameters (delayed trip etc.)

Document history
VersionDate

Major changes

3.1

26.03.2020

improved documentation chapter Hardware Limit, Delayed Trip, Operation of individual
channels

3.0

25.11.2019

safety information, glossary

2.3

16.10.2019

improved documentation (ADC/ SPS)

2.2

29.07.2019

improved documentation, error correction

2.1

31.05.2017
01.10.2018

Fixed Item Codes
Notes revised

2.0

16.02.2017

Relayouted version

Disclaimer / Copyright
Copyright © 2020 by iseg Spezialelektronik GmbH / Germany. All Rights Reserved.
This document is under copyright of iseg Spezialelektronik GmbH, Germany. It is forbidden to copy, extract parts, duplicate forany kind of publication without a written permission of iseg Spezialelektronik GmbH. This information has been prepared forassisting operation and maintenance personnel to enable efficient use.
The information in this manual is subject to change without notice. We take no responsibility for any mistake in the
document. We reserve the right to make changes in the product design without reservation and without notification to
the users. We decline all responsibility for damages and injuries caused by an improper use of the device.

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Safety
This section contains important security information for the installation and operation of the device. Failure to follow safety
instructions and warnings can result in serious injury or death and property damage.
Safety and operating instructions must be read carefully before starting any operation.
We decline all responsibility for damages and injuries caused which may arise from improper use of our equipment.

Depiction of the safety instructions
DANGER!
“Danger!” indicates a severe injury hazard. The non-observance of safety instructions marked as “Danger!” willlead to possible injury or death.
DANGER!

WARNING!
“Warning!” indicates an injury hazard. The non-observance of safety instructions marked as “Warning!” could
lead to possible injury or death.
WARNING!

CAUTION!
Advices marked as “Caution!” describe actions to avoid possible damages to property.

CAUTION!

INFORMATION
Advices marked as “Information” give important information.

INFORMATION

Read the manual.

Attention high voltage!

Important information.

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Intended Use
The device may only be operated within the limits specified in the data sheet. The permissible ambient conditions (temperature,humidity) must be observed. The device is designed exclusively for the generation of high voltage as specified in the data sheet.
Any other use not specified by the manufacturer is not intended. The manufacturer is not liable for any damage resulting from
improper use.

Qualification of personnel
A qualified person is someone who is able to assess the work assigned to him, recognize possible dangers and take suitablesafety measures on the basis of his technical training, his knowledge and experience as well as his knowledge of the relevant
regulations.

General safety instructions•

Observe the valid regulations for accident prevention and environmental protection.

•

Observe the safety regulations of the country in which the product is used.

•

Observe the technical data and environmental conditions specified in the product documentation.

•

You may only put the product into operation after it has been established that the high-voltage device complies withthe country-specific regulations, safety regulations and standards of the application.

•

The high-voltage power supply unit may only be installed by qualified personnel.

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Important safety instructions
WARNING!
To avoid injury of users it is not allowed to open the unit. There are no parts which can be maintained by users
inside of the unit. Opening the unit will void the warranty.
WARNING!

WARNING!
The high-voltage cable must be professionally connected to the consumer/load and the connection insulatedwith the appropriate dielectric strength. Do not power the consumer/load outside of its specified range.
WARNING!

WARNING!
Before connecting or disconnecting HV cables or any operation on the HV output or the application, the unit has
to be switched off and discharge of residual voltage has to be finished. Depending on application residual
voltages can be present for long time periods.
WARNING!

WARNING!
Do not operate the unit in wet or damp conditions.

WARNING!

WARNING!
Do not operate the unit in an explosive atmosphere.

WARNING!

WARNING!
Do not operate the unit if you suspect the unit or the connected equipment to be damaged.

WARNING!

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CAUTION!
When installing the units, make sure that an air flow through the corresponding air inlet and outlet openings ispossible.
Caution!

CAUTION!
When controlling, with software, the high voltage systems, make sure that nobody is near the high voltage or
can be injured.
Caution!

INFORMATION
Please check the compatibility with the devices used.

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Table of ContentsDocument history
Disclaimer / CopyrightSafety223

Depiction of the safety instructions
Intended Use
Qualification of personnel
General safety instructions
Important safety instructions

3
4
4
4
5

1

General description

8

2

Technical Data

93

Handling

10

3.1
3.2
3.3
3.4
3.5
3.6

10
11
11
11
12
12

4

Connection
Module status
Hardware Limit
Safety Loop
Delayed Trip
Operation of individual channels

Options12

4.1 SLA – Active safety loop
4.2 SLP – Internally powered safety loop

12
12

5

Front panel versions

13

6

Dimensional drawings

14

7

Limits and Jumper

15

8Connectors and PIN assignments

16

9

Accesories

18

10

Order guides

19

11

Appendix20

12Glossary

21

13

Warranty & Service

22

14

Disposal

22

15

Manufacturer contact

22

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1 General description
CAUTION!
The devices must only be used in combination with iseg approved crates.

CAUTION!
The bipolar EBS distribution modules are multichannel high voltage power supplies in MMS- and MMC system (Eurocard format)
with full 4-quadrant capabilities. The EBS can be used as bipolar current sink and source, which perfectly meets the requirementsof electron optical systems or capacitive loads. The EBS is built in common floating ground principle to reduce voltage noise level.
With up to 24 channels each single channel has an independent voltage control up to 3 kV channel-voltage-difference. The EBS
configuration of output voltage and current can be customized on request. The module is made of high precision components as
24 bit ADC and 20 bit DAC and provides comprehensive security features.

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2 Technical Data
SPECIFICATIONSEBS 3UEBS 6U 500V / 1.2 kVPolarity

EBS 6U 3 kV

bipolar

Floating principle

Common Floating Ground

Ripple and noise (f > 10 Hz)< 20 mVp-p

Stability
Stability − [ΔVout vs. ΔVin]< 1 • 10-5 • Vnom

Stability − [ΔVout vs. ΔRload]< 1 • 10-4 • Vnom

Temperature coefficient voltage measurement< 20 ppm / K

Temperature coefficient current measurement< 100 ppm / K

Resolution - The resolution of measurable values depends on the settings of the sampling rate and the digital filter!
Resolution voltage setting< 2 • 10-6 • Vnom

Resolution current setting (trip)< 1 • 10-4 • Inom

Resolution voltage measurement (1< 2 • 10-6 • Vnom

Resolution current measurement [Iout > 20 μA] (1< 1 • 10-4 • Inom

Measurement Accuracy − The measurement accuracy is guaranteed in the range 1% • Vnom < Vout < Vnom and for 1 year
Accuracy voltage measurement

0.01 % • Vout + 0.02 % • Vnom

Accuracy current measurement [Iout > 20 μA]

0.2 % • Iout + 0.2 % • Inom

Sample rates ADC (SPS)

5, 10, 25, 50, 60, 100, 500 (2Digital filter averages

1, 16, 64 (2, 256, 512, 1024

Voltage ramp up / down1 • 10-6 • Vnom /s to 1• Vnom / s

Hardware limits

Potentiometer per module [Vmax / Imax]

Limit monitor volt

2.5 V

Digital interface

CAN

Protection

Safety loop, over load and short circuit protected

HV connector

Lemo 1pole

System connector

96-pin connector according to DIN 41612 (MMS HV compatible)

Safety loop connector
Limit monitor connector

Lemo 2pole
n. a.

Case
Dimensions – L/W/H

Redel 51pole | SHV

Lemo 2pole
19 inch plug-in cassette

160mm / 4HP / 3U

220mm / 8HP / 6U

Operating temperature

0 − 40 °C

Storage temperature-20 − 60 °C

Humidity

20 − 80 %, not condensing

Notes:
1)
The resolution of measurable values depends on the settings of the sampling rate and the digital filter!
2)Standard factory settings
Table 1: Technical data: Specifications

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CONFIGURATIONS EBS
Type

Vnom

Inom

Ch

Max. voltage
difference channel
to channel

Max. Iin (A) at 24V

HV connector

Item Code

Options

EBS 40 05

500 V

1 mA

4

1 kV

0.6

L01, L04

EB0400051050001100−

EBS C0 05

500 V

1 mA

12

1 kV

1.2

SHV, R42

EB1200051050000200

SLA, SLPEBS 180 05

500 V

1 mA

24

1 kV

2.2

R44

EB2400051050004400

SLA, SLPEBS C0 12

1.2 kV

0.5 mAEBS 180 12

1.2 kV

0.5 mA12

2.4 kV

1.4

SHV, R42

EB1200125040000200

SLA, SLP

24

2.4 kV2.8

R44

EB2400125040004400

SLA, SLPEBS C0 12

1.2 kV

1 mA

12

1.2 kV

1.4

SHV, R42

EB1200121050000200

SLA, SLPEBS 180 12

1.2 kV

1 mA

24

1.2 kV2.8

R44

EB2400121050004400

SLA, SLPEBS C0 30

3 kV

0.5 mA

12

3 kV

1.6

SHV, R42

EB1200305040000200

SLA, SLPEBS 180 30

3 kV

0.5 mA

24

3 kV

3,2

R44

EB2400305040004400

SLA, SLP

Standard/opt.

Table 2: Technical data: Configurations

OPTIONSOPTION CODE

EXAMPLEITEM CODE HEX CODING

ACTIVE SAFETY LOOP

SLA

001

INTERNALLY POWERED SAFETY LOOP

SLP

002

Table 3: Technical data: Options and order information

3 Handling
3.1 Connection
The supply voltages and the CAN interface are connected to the module via a 96-pin connector on the rear side of the module.
The physical address of the module, determined by the slot position in the crate, is also accessible via this connector Modules
and crate controllers with different settings of bit rate do not work on the same CAN-Line.
INFORMATION
For proper operation the module must be configured with the correct CAN bitrate, which meets theconfiguration of the crate controller, the module will be used with. The delivery condition is shown on themodules typeplate (side plate of the module).
Typically newer iseg crate controllers (CC24, CC23, CC238) are delivered with 250kBits/s standard.
INFORMATION Wiener M-POD Controller and older iseg hardware is set on 125 kBit/s standard bitrate.

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3.2 Module status
The module status is displayed by two LEDs on the front panel.
green LED „OK“ onall channels have the status “OK“

green LED „OK“ offan error occured: safety loop is possibly not closed or the power supplies are out of tolerance or
the threshold of Vmax, Imax, Iset or Itrip (see function descriptions for details) has been exceeded.
LED will be switched off until the error has been fixed and the corresponding status bit has beenerased via software interface.

yellow LED on

one or more channels have status “HV ON” or voltage on output is greater than 56V.

Green LED blinking

Firmware update is stored into flash, do not switch of power supply, crate etc.

Table 4: Module status information

3.3 Hardware Limit
The maximum output voltage for all channels (hardware voltage limit) is defined by the position of the corresponding
potentiometer Vmax. At the 3U Version the potentiometers are inside of the module, see Figure 4: limits and jumper 3U Model.
The 6U versions are equipped with two independent potentiometers for the positive and negative voltage limit. The maximum
output current for all channels (hardware current limit) is defined by the position of the corresponding potentiometer I max. The
highest possible set value for voltage and current is given by Vmax − 2% and Imax − 2%, respectively. It is possible to measure thehardware voltage and current limits at the sockets below the potentiometer. The socket voltages are proportional to the relative
limits, where 2.5 V corresponds to (102 ± 2)% Vnom and (102 ± 2)% Inom. The output voltage is limited to the specified value. If thecurrent exceeds the hardware current limit (about 30% above the current limit value set by the limit potentiometer) the channel
will be shut off without delay and ramp. In both cases the green LED on the front panel turns off.

3.4 Safety Loop
A safety loop can be implemented by the safety loop socket (SL) on the front panel and between the SLcontacts (Pin 22 andPIN 30) at the REDEL-connector, if equipped. If the safety loop is active a high voltage generation in any channel is only possible if
the safety loop is closed and an external current in a range of 5 to 20 mA of any polarity is driven through the loop. For modules
with a REDEL-connector the front panel SL input must be shortened. If the safety loop is opened during the operation the output
voltages will be shut off without ramp and the corresponding bits in the “ModuleStatus” and “ModuleEventStatus” are cancelled(CAN_EDCP_Programmers-Guide.pdf, see 11 Appendix). After closing the loop again the “ModuleEventStatus” has to be reset andthe channels have to be switched ON. The loop connectors are potential free, the internal voltage drop is approx. 3V. By factory
setup the safety loop is not active (the corresponding bits are always set). The loop can be activated by removing the jumper“SL-disable” on the rear side of the module, see 6 Dimensional drawings.

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3.5 Delayed Trip
The function "Delayed Trip" provides a user-configurable, time-delayed response to an increased output current (Iout) higher than
the set current (Iset). The response to this kind of event can be, for example, to ramp down the channel with the programmed
ramp. A detailed description for the configuration can be found in the manual CAN_EDCP_Programmers-Guide.pdf,
see 11 Appendix.
By a programmable timeout with one millisecond resolution, the trip can be delayed up to four seconds. If the measured current
exceeds the set current the programmed timeout counter is decremented, keeping the output voltage. If the current returns to avalue <Iset before timeout the counter will be reset. So this process can be restarted if the current rises again.
Note that the actual current is acquired approximately every 150ms, which can lead to delays in the detection of an exceeded oragain reduced current.
If the Delayed Trip function is activated the voltage ramp should be limited to 1 % of Vnom before. Higher values could trigger a tripby internal charge balancing during a ramp, even though the output current does not exceed the set value I set.
If the connected load contains capacities or if Iset is very small, it might be necessary to further reduce the ramp speed.
Alternatively, the Delayed Trip can be activated only after the completion of the ramp.
If the current at any time exceeds the hardware current limit (about 30% above the current limit value set by the limit
potentiometer) the channel will be shut off without delay and ramp.
INFORMATION
An activated KillEnable feature disables the Delayed Trip function.

INFORMATION
An active KillEnable function disables the Delayed Trip function. If KillEnable is active and a trip occurs, the channel is shut down
without ramp. However, the actual discharge time strongly depends on the connected load.

3.6 Operation of individual channels
If a channel is switched off (after power on, but also due to shut down with hardware current limit exceeded or after switching off
with KillEnable) and if the maximum voltage in any active channel is greater 2000V (in any polarity), the output voltage can bedifferent from 0V. The deviation can be up to 10% of the maximum set voltage. Compliance with the Vset value (also 0V) is only
guaranteed if the channel is switched on.

4 Options
4.1 SLA – Active safety loop
Actively opens the Safety loop in case of a trip or a delayed trip. This option allows to shut down other modules and devices byinterrupting the SL when a trip is detected.

4.2 SLP – Internally powered safety loop
Internal current source for the Safety Loop (no galvanic isolation of the SL and the crate GND).

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5 Front panel versions
FRONT PANELSChannels

441212 / 24

Floating

CFG

CFG

CFG

CFG

HV Connector

L04

L01

SHV

R51

Options

3U

3U

FigureTable 5: Front panel versions

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6 Dimensional drawings

Figure 1: dimensional drawing 3U

Figure 2: dimensional drawing 6U SHVEBS High Voltage Power Supply series | Last changed on: 26.03.2020 | www.iseg-hv.com

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Figure 3: dimensional drawing 6U REDEL

7 Limits and Jumper

Figure 4: limits and jumper 3U ModelEBS High Voltage Power Supply series | Last changed on: 26.03.2020 | www.iseg-hv.com

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8 Connectors and PIN assignments
HV CONNECTOR ASSIGNMENTS
Name

R51.42

R51.44

SHV

S08

L04

L01

FigureName
FigureTable 6: HV Connector

SAFETY LOOP
Name

Safety Loop socket

FigureLIMIT MONITOR
Name

Limit monitor socket

FigureTable 7: Safety Loop and Limit Connector (drawings not to scale)EBS High Voltage Power Supply series | Last changed on: 26.03.2020 | www.iseg-hv.com

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CONNECTORS PART NUMBERS (manufacturer code / iseg accessory parts item code)
POWER SUPPLY SIDECABLE SIDE

R51 (REDEL 51 PINS)
SocketSLG.H51.LLZG

Connector

SAG.H51.LLZBG / Z200325

Socket contacts (male)

FFA.05.403.ZLA1 / Z592189

Connector contacts (female)

ERA.05.403.ZLL1 / Z592263

Contacts Saf. Loop (male)

FGG.2B.565.ZZC / Z592261

Contacts Saf. Loop (female)

EGG.3B.665.ZZM / Z592262

Socket Load SideSLA.H51.LLZBG / Z201035

SHV (ROSENBERGER)
Socket

57S501-200N3

Connector

57K101-006N3 / Z590162

Connector

R317.005.000 / Z592474

Connector

FFA.0S.250.CTAK47 / Z592635

Connector

FGG.0B.304.CLAD52

S08 (RADIALL)
Socket

R317.580.000
L01 (LEMO)

Socket

ERA.0S.250.CLL
L04 (LEMO)

Socket

EGG.0B.304.CLL

Safety Loop (LEMO)
Socket

ERA.0S.302.CLL

Connector

FFA.0S.302.CLAC / Z592312

Limit monitor 2pol. (LEMO)
Socket

EGG.00.302.CLL

Connector

FGG.00.302.CLAD

Table 8: Connectors part number information

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9 Accesories
CAUTION!
Only use genuine iseg parts like power cables, CAN cables and terminators for stable and safe operation.

CAUTION!

ACCESSORY ITEMORDER ITEM CODE

REDEL coupling Socket, without contacts

Z200325

REDEL Socket contact, ERA.05.403.ZLL1

Z592263

REDEL SL sockets Contact, EGG.3B.665.ZZM

Z592262

REDEL socket carrier red SLA.H51.LLZG

Z201035

SHV coupler screw for RG58

Z590162

SHV coupler screw for >5kV

Z592474

Lemo plug 1-pole with accessories

Z592635

Lemo plug 2-pole without collet chuck (SL)Z592312

REDEL pin contact

Z592189

REDEL SL pin contact

Z592261

Lemo plug 4pol.

Z592705

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10 Order guides
CABLE ORDER GUIDEPOWER SUPPLY SIDECONNECTOR

CABLE
CODE

CABLE DESCRIPTIONLOAD SIDECONNECTOR

ORDER CODE
LLL = length in m (1R51.42-G07

HV cable 6kV Kerpen SL-v2YCeHI 37xAWG26/7red

R51.42-A

RG42_C07-LLL_RA42

R51.44-G07

HV cable 6kV Kerpen SL-v2YCeHI 37xAWG26/7red

R51.44-A

RG44_C07-LLL_RA44

L01

01

HV cable shielded 9kV

open

L01_C01-LLL

SHV

04

HV cable shielded 30kV (HTV-30S-22-2)

open

SHV_C04-LLL

1)Length building examples: 10cm ➜ 0.1, 2.5m ➜ 2.5, 12m ➜ 012, 999m ➜ 999

Table 9: Guideline for cable ordering

CONFIGURATION ORDER GUIDE (item code parts)
EB

24

0

High Voltage
Bipolar
Distributor

Numbers of Class
channels

030

504

000

02

00

Vnom

Inom (nA)

Option (hex)

HV-Connector

Customized
Versiontwo significante
digits + number ofzeros
For Examle:
504 = 500µA

Sum of the hex
codes (see Table 3:
Technical data:
Options and orderinformation)
For Example:
SLP = 002

03 = S08
11 = Lemo L01
21 = Lemo L04
42 and 44 =Redel Multipin(see Table 8:Connectors partnumberinformation)

00 = none

0 = Standard three significante
digits • 100VFor Examle:
030 = 3,000V

Table 10: Item code parts for different configurations

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11 Appendix
For more information please use the following download links:
This document
http://download.iseg-hv.com/SYSTEMS/MMS/EBS/iseg_datasheet_EBS_en.pdf
CAN EDCP Programmers-Guide
http://download.iseg-hv.com/SYSTEMS/MMS/CAN_EDCP_Programmers-Guide.pdf
iseg Hardware Abstraction Layer
http://download.iseg-hv.com/SYSTEMS/MMS/isegHardwareAbstractionLayer.pdf

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12 Glossary
SHORTCUT

MEANING

Vnom

nominal output voltage

Voutoutput voltage

Vset

set value of output voltage

Vmon

monitor voltage

Vmeas

digital measured value of voltage

Vp-ppeak to peak ripple voltage

Vininput / supply voltage

Vtype

type of output voltage (AC, DC)

Vrefinternal reference voltage

Vmax

limit (max.) value of output voltage∆Vout – [∆Vin]deviation of Vout dep. on variation of supply voltage∆Vout – [∆Rload]

deviation of Vout dep. on variation of output load

Vbounds

Voltage bounds, a tolerance tube Vset ± Vbounds around Vset

Inomnominal output current

Iout

output current

Iset

set value of output current

Imonmonitor voltage of output current

Imeas

digital measured value of current

Itrip

current limit to shut down the output voltage

Iin

input / supply current

Imax

limit (max.) value of output current

IlimitCurrent Limit.

Ibounds

Current bounds, a tolerance tube Iset ± Ibounds around IsetPnomnominal output powerPininput power

Pin_nomnominal input powerTtemperature

TREF

Reference temperatureON

HV ON/OFF/ON

HV OFF/ON

CH

channel(s)HVhigh voltage

LV

low voltage

GNDsignal ground

INH

Inhibit

POL

Polarity

KILL

KillEnable

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13 Warranty & Service
This device is made with high care and quality assurance methods. The standard factory warranty is 36 months. Please contact
the iseg sales department if you wish to extend the warranty.
CAUTION!
Repair and maintenance may only be performed by trained and authorized personnel.
For repair please follow the RMA instructions on our website: www.iseg-hv.com/en/support/rma
CAUTION!

14 Disposal
INFORMATION
All high-voltage equipment and integrated components are largely made of recyclable materials. Do notdispose the device with regular residual waste. Please use the recycling and disposal facilities for electrical andelectronic equipment available in your country.

INFORMATION

15 Manufacturer contact
iseg Spezialelektronik GmbH
Bautzner Landstr. 23
01454 Radeberg / OT Rossendorf
GERMANY
FON: +49 351 26996-0 | FAX: +49 351 26996-21
www.iseg-hv.com | info@iseg-hv.de | sales@iseg-hv.de

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