EPS ELR 9000 Series User manual

EPS
Stromversorgung
ELR 9000
Electronic DC Load with
Energy Recovery
Operating Manual
Attention! This document is only
valid for devices with rmwares
“KE: 2.11”, “HMI: 2.03” and “DR:
1.6.3” or higher. For availability
of updates for your device check
our website or contact us.
Doc ID: ELR9TEN
Revision: 03
Date: 10/2015

Page 3
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
TABLE OF CONTENTS
1GENERAL
1.1 About this document......................................5
1.1.1 Retention and use..........................................5
1.1.2 Copyright........................................................5
1.1.3 Validity ............................................................5
1.1.4 Symbols and warnings ..................................5
1.2 Warranty.........................................................5
1.3 Limit of liability ................................................5
1.4 Disposal of equipment ...................................6
1.5 Product key ....................................................6
1.6 Intended usage ..............................................6
1.7 Safety .............................................................7
1.7.1 Safety notices.................................................7
1.7.2 Responsibility of the user...............................7
1.7.3 Responsibility of the operator .......................8
1.7.4 User requirements .........................................8
1.7.5 Alarm signals..................................................9
1.8 Technical data ................................................9
1.8.1 Approved operating conditions......................9
1.8.2 General technical data...................................9
1.8.3 Specic technical data .................................10
1.8.4 Views............................................................16
1.9 Construction and function............................20
1.9.1 General description......................................20
1.9.2 Block diagram ..............................................20
1.9.3 Scope of delivery .........................................21
1.9.4 Accessories..................................................21
1.9.5 Options .........................................................21
1.9.6 The control panel (HMI)...............................22
1.9.7 USB-Port Type B (Back side) ......................25
1.9.8 Interface module slot ...................................25
1.9.9 Analog interface ...........................................25
1.9.10 “Share” connector ........................................26
1.9.11 “Sense” connector (remote sensing)...........26
1.9.12 Master-Slave bus.........................................26
1.9.13 GPIB port (optional) .....................................26
2INSTALLATION & COMMISSIONING
2.1 Transport and storage .................................27
2.1.1 Transport ......................................................27
2.1.2 Packaging ....................................................27
2.1.3 Storage.........................................................27
2.2 Unpacking and visual check........................27
2.3 Installation ....................................................27
2.3.1 Safety procedures before installation and
use................................................................27
2.3.2 Preparation...................................................28
2.3.3 Installing the device .....................................28
2.3.4 Mains connection (AC) ................................29
2.3.5 Connection to DC sources ..........................30
2.3.6 Grounding of the DC input...........................31
2.3.7 Connection of remote sensing ....................31
2.3.8 Connecting the “Share” bus ........................32
2.3.9 Installation of an AnyBus interface module.32
2.3.10 Connecting the analog interface .................33
2.3.11 Connecting the USB port (rear side)...........33
2.3.12 Initial commission.........................................34
2.3.13 Commission after a rmware update or a
long period of non use .................................34
3OPERATION AND APPLICATION
3.1 Personal safety ............................................35
3.2 Operating modes .........................................35
3.2.1 Voltage regulation / Constant voltage .........35
3.2.2 Current regulation / constant current / current
limitation .......................................................35
3.2.3 Resistance regulation / constant resistance36
3.2.4 Power regulation / constant power / power
limitation .......................................................36
3.2.5 Dynamic characteristics and stability crite-
ria..................................................................36
3.3 Alarm conditions ..........................................37
3.3.1 Power Fail ...................................................37
3.3.2 Overtemperature..........................................37
3.3.3 Overvoltage..................................................37
3.3.4 Overcurrent ..................................................37
3.3.5 Overpower....................................................37
3.4 Manual operation .........................................38
3.4.1 Powering the device ....................................38
3.4.2 Switching the device off...............................38
3.4.3 Conguration via MENU..............................38
3.4.4 Adjustment limits..........................................46
3.4.5 Changing the operating mode.....................46
3.4.6 Manual adjustment of set values.................47
3.4.7 Switching the DC input on or off..................48
3.5 Remote control.............................................49
3.5.1 General.........................................................49
3.5.2 Controls locations ........................................49
3.5.3 Remote control via a digital interface ..........49
3.5.4 Remote control via the analog interface
(AI)................................................................50
3.6 Alarms and monitoring.................................54
3.6.1 Denition of terms ........................................54
3.6.2 Device alarm and event handling................54
3.7 Control panel (HMI) lock..............................57
3.8 Loading and saving a user prole ...............57
3.9 The function generator.................................58
3.9.1 Introduction...................................................58
3.9.2 General.........................................................58
3.9.3 Method of operation.....................................58
3.9.4 Manual operation .........................................59
3.9.5 Sine wave function.......................................60
3.9.6 Triangular function .......................................60

Page 4
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
3.9.7 Rectangular function....................................61
3.9.8 Trapezoidal function.....................................62
3.9.9 DIN 40839 function ......................................62
3.9.10 Arbitrary function..........................................63
3.9.11 Ramp function..............................................67
3.9.12 UI and IU table functions (XY table)............67
3.9.13 Remote control of the function generator....68
3.10 Other applications........................................69
3.10.1 Series connection ........................................69
3.10.2 Parallel operation in master-slave (MS)......69
3.10.3 Two quadrants operation (2QO)..................73
4SERVICING AND MAINTENANCE
4.1 Maintenance / cleaning................................75
4.2 Fault nding / diagnosis / repair...................75
4.2.1 Replacing a defect mains fuse ....................75
4.3 Firmware updates ........................................76
4.3.1 Update of the control panel unit (HMI) ........76
4.3.2 Update of the interface unit (KE) .................76
4.4 Calibration ....................................................77
4.4.1 Preface .........................................................77
4.4.2 Preparation...................................................77
4.4.3 Calibration procedure ..................................77
5ACCESSORIES AND OPTIONS
5.1 Overview ......................................................79
6SERVICE & SUPPORT
6.1 General.........................................................79
6.2 Contact options ............................................79

Page 5
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
1. General
1.1 About this document
1.1.1 Retention and use
This document is to be kept in the vicinity of the equipment for future reference and explanation of the operation of
the device. This document is to be delivered and kept with the equipment in case of change of location and/or user.
1.1.2 Copyright
Reprinting, copying, also partially, usage for other purposes as foreseen of this manual are forbidden and breach
may lead to legal process.
1.1.3 Validity
This manual is valid for the following equipment with TFT display panel, including derived variants.
Model Article nr. Model Article nr. Model Article nr.
ELR 9080-170 33 200 401 ELR 9250-140 33 200 406 ELR 9250-210 33 200 411
ELR 9250-70 33 200 402 ELR 9500-60 33 200 407 ELR 9500-90 33 200 412
ELR 9500-30 33 200 403 ELR 9750-44 33 200 408 ELR 9750-66 33 200 413
ELR 9750-22 33 200 404 ELR 91000-30 33 200 409 ELR 91500-30 33 200 414
ELR 9080-340 33 200 405 ELR 9080-510 33 200 410
Changes and modications for special models will be listed in a separate document.
1.1.4 Symbols and warnings
Warning and safety notices as well as general notices in this document are shown in a box with a symbol as follows:
Symbol for a life threatening danger
Symbol for general safety notices (instructions and damage protection bans)
Symbol for general notices
1.2 Warranty
EPS Stromversorgung guarantees the functional competence of the device within the stated performance param-
eters. The warranty period begins with the delivery of free from defects equipment.
Terms of guarantee are included in the general terms and conditions of EPS Stromversorgung.
1.3 Limit of liability
All statements and instructions in this manual are based on current norms and regulations, up-to-date technology
and our long term knowledge and experience. EPS Stromversorgung accepts no liability for losses due to:
• Usage for purposes other than dened
• Use by untrained personnel
• Rebuilding by the customer
• Technical changes
• Use of non authorized spare parts
The actual delivered device(s) may differ from the explanations and diagrams given here due to latest technical
changes or due to customized models with the inclusion of additionally ordered options.

Page 6
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
1.4 Disposal of equipment
A piece of equipment which is intended for disposal must, according to European laws and regulations (ElektroG,
WEEE) be returned to EPS Stromversorgung for scrapping, unless the person operating the piece of equipment
or another, delegated person is conducting the disposal. Our equipment falls under these regulations and is ac-
cordingly marked with the following symbol:
1.5 Product key
Decoding of the product description on the label, using an example:
ELR 9 1500 - 30 xx zzz
Field for identication of installed options and/or special models
3W = Option “Three-way interface” (GPIB/USB/Analog) installed
S01...S0x = Special models with or without options
Construction (not always given)
2U / 3U / 4U = 19” enclosure with 2U, 3U or 4U
Maximum current of the device in Ampere
Maximum voltage of the device in Volt
Series : 8= Series 8000 or 800, 9= Series 9000 etc.
Type identication:
PS = Power Supply, usually programmable
PSI = Power Supply Intelligent, always programmable
EL = Electronic Load, always programmable
ELR = Electronic Load with Recovery
BC = Battery Charger, not programmable
BCI = Battery Charger Intelligent, programmable
Special models are always derived from standard models and can vary in input voltage and
current from those given.
1.6 Intended usage
The equipment is intended to be used, if a power supply or battery charger, only as a variable voltage and current
source, or, if an electronic load, only as a variable current sink.
Typical application for a power supply is DC supply to any relevant user, for a battery charger the charging of vari-
ous battery types and for electronic loads the replacement of Ohm resistance by an adjustable DC current sink in
order to load relevant voltage and current sources of any type.
• Claims of any sort due to damage caused by non-intended usage will not be accepted.
• All damage caused by non-intended usage is solely the responsibility of the operator.

Page 7
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
1.7 Safety
1.7.1 Safety notices
Mortal danger - Hazardous voltage
• Electrical equipment operation means that some parts will be under dangerous voltage.
Therefore all parts under voltage must be covered!
• All work on connections must be carried out under zero voltage (input not connected to
voltage sources) and may only be performed by qualied and informed persons. Improper
actions can cause fatal injury as well as serious material damage.
• Never touch cables or connectors directly after unplugging from mains supply as the
danger of electric shock remains.
• This electronic load device uses an inverter and in case of a failure the intermediate
circuit voltage can be present on the DC input, even if there is no voltage source con-
nected - it is recommended to never touch the metal parts of the DC input terminals
with bare hands!
• The equipment must only be used as intended
• The equipment is only approved for use within the connection limits stated on the product label.
• Do not insert any object, particularly metallic, through the ventilator slots
• Avoid any use of liquids near the equipment. Protect the device from wet, damp and conden-
sation.
• For power supplies and battery chargers: do not connect users, particularly low resistance, to
devices under power; sparking may occur which can cause burns as well as damage to the
equipment and to the user.
• For electronic loads: do not connect power sources to equipment under power, sparking may
occur which can cause burns as well as damage to the equipment and to the source.
• ESD regulations must be applied when plugging interface cards or modules into the relative slot
• Interface cards or modules may only be attached or removed after the device is switched off.
It is not necessary to open the device.
• Do not connect external power sources with reversed polarity to DC input or outputs! The
equipment will be damaged.
• For power supply devices: avoid where possible connecting external power sources to the DC
output, and never those that can generate a higher voltage than the nominal voltage of the device.
• For electronic loads: do not connect a power source to the DC input which can generate a volt-
age more than 120% of the nominal input voltage of the load. The equipment is not protected
against over voltage and may be irreparably damaged.
• Never insert a network cable which is connected to Ethernet or its components into the master-
slave socket on the back side of the device!
1.7.2 Responsibility of the user
The equipment is in industrial operation. Therefore the operators are governed by the legal safety regulations.
Alongside the warning and safety notices in this manual the relevant safety, accident prevention and environmental
regulations must also be applied. In particular the users of the equipment:
• must be informed of the relevant job safety requirements
• must work to the dened responsibilities for operation, maintenance and cleaning of the equipment
• before starting work must have read and understood the operating manual
• must use the designated and recommended safety equipment.
Furthermore, anyone working with the equipment is responsible for ensuring that the device is at all times techni-
cally t for use.

Page 8
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
1.7.3 Responsibility of the operator
Operator is any natural or legal person who uses the equipment or delegates the usage to a third party, and is
responsible during its usage for the safety of the user, other personnel or third parties.
The equipment is in industrial operation. Therefore the operators are governed by the legal safety regulations.
Alongside the warning and safety notices in this manual the relevant safety, accident prevention and environmental
regulations must also be applied. In particular the operator has to
• be acquainted with the relevant job safety requirements
• identify other possible dangers arising from the specic usage conditions at the work station via a risk assessment
• introduce the necessary steps in the operating procedures for the local conditions
• regularly check that the operating procedures are current
• update the operating procedures where necessary to reect changes in regulation, standards or operating con-
ditions.
• dene clearly and unambiguously the responsibilities for operation, maintenance and cleaning of the equipment.
• ensure that all employees who use the equipment have read and understood the manual. Furthermore the users
are to be regularly schooled in working with the equipment and the possible dangers.
• provide all personnel who work with the equipment with the designated and recommended safety equipment
Furthermore, the operator is responsible for ensuring that the device is at all times technically t for use.
1.7.4 User requirements
Any activity with equipment of this type may only be performed by persons who are able to work correctly and
reliably and satisfy the requirements of the job.
• Persons whose reaction capability is negatively inuenced by e.g. drugs, alcohol or medication may not operate
the equipment.
• Age or job related regulations valid at the operating site must always be applied.
Danger for unqualied users
Improper operation can cause person or object damage. Only persons who have the necessary training,
knowledge and experience may use the equipment.
Delegated persons are those who have been properly and demonstrably instructed in their tasks and the atten-
dant dangers.
Qualied persons are those who are able through training, knowledge and experience as well as knowledge of
the specic details to carry out all the required tasks, identify dangers and avoid personal and other risks.

Page 9
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
1.7.5 Alarm signals
The equipment offers various possibilities for signalling alarm conditions, however, not for danger situations. The
signals may be optical (on the display as text) acoustic (piezo buzzer) or electronic (pin/status output of an analog
interface). All alarms will cause the device to switch off the DC input.
The meaning of the signals is as follows:
Signal OT
(OverTemperature)
• Overheating of the device
• DC input will be switched off
• Non-critical
Signal OVP
(OverVoltage)
• Overvoltage shutdown of the DC input occurs due to high voltage entering the device
• Critical! The device and/or the load could be damaged
Signal OCP
(OverCurrent)
• Shutdown of the DC input due to excess of the preset limit
• Non-critical, protects the source from excessive current drain
Signal OPP
(OverPower)
• Shutdown of the DC input due to excess of the preset limit
• Non-critical, protects the source from excessive power drain
Signal PF
(Power Fail)
• DC input shutdown due to AC undervoltage or defect in the AC input
• Critical on overvoltage! AC mains input circuit could be damaged
1.8 Technical data
1.8.1 Approved operating conditions
• Use only inside dry buildings
• Ambient temperature 0-50 °C
• Operational altitude: max. 2000 m above sea level
• Max 80% RH up to 30 °C, linear decrease to 50% RH at 50 °C
1.8.2 General technical data
Display: Colour TFT touch screen with gorilla glass, 4.3”, 480pt x 272pt, capacitive
Controls: 2 rotary knobs with pushbutton functions, 1 button
The nominal values for the device determine the maximum adjustable ranges.

Page 10
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
1.8.3 Specic technical data
(1 Related to the nominal values, the accuracy denes the maximum deviation between an adjusted values and the true (actual) value.
Example: a 80 V model has min. 0.3% voltage accuracy, that is 240 mV. When adjusting the voltage to 5 V, the actual value is allowed to differ max. 240 mV, which
means it might be between 4.76 V and 5.24 V.
(2 Typical value at 100% input voltage and 100% power
3) Set values as in the display or as data readable via digital interfaces are more accurate than the corresponding value on the DC input. Their accuracy subtracts
from the general accuracy. For actual values it is vice versa. There the display accuracy adds to the general accuracy, so the error (i.e. deviation) will be higher.
3.5 kW Model
ELR 9080-170 ELR 9250-70 ELR 9500-30 ELR 9750-22
AC Input/Output
Input/output voltage 195...253 V L-N 195...253 V L-N 195...253 V L-N 195...253 V L-N
Input/output connection L,N,PE L,N,PE L,N,PE L,N,PE
Input/output frequency 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10%
Input/output fuse (internal) T16 A T16 A T16 A T16 A
Efciency (2 92.5% 93.5% 94.5% 94.5%
DC Input
Max. input voltage UMax 80 V 250 V 500 V 750 V
Max. input power PMax 3500 W 3500 W 3500 W 3500 W
Max. input current IMax 170 A 70 A 30 A 22 A
Overvoltage protection range 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax
Overcurrent protection range 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax
Overpower protection range 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax
Max. allowed input voltage 100 V 300 V 600 V 850 V
Min. input voltage for IMax 0.73 V 2.3 V 4.6 V 6.8 V
Temperature coefcient for set
values Δ / K Voltage / current: 100 ppm
Voltage regulation
Adjustment range 0...80 V 0...250 V 0...500 V 0...750 V
Stability at ΔI < 0.05% UMax < 0.05% UMax < 0.05% UMax < 0.05% UMax
Accuracy (1 (at 23 ± 5°C) < 0.3% UMax < 0.3% UMax < 0.3% UMax < 0.3% UMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤ 0.2%
Remote sensing compensation max. 5% UMax
Current regulation
Adjustment range 0...170 A 0...70 A 0...30 A 0...22 A
Stability at ΔU < 0.15% IMax < 0.15% IMax < 0.15% IMax < 0.15% IMax
Accuracy (1 (at 23 ± 5°C) < 0.4% IMax < 0.4% IMax < 0.4% IMax < 0.4% IMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%
Compensation 10-90% ΔUDC < 0.6 ms < 0.6 ms < 0.6 ms < 0.6 ms
Power regulation
Adjustment range 0…3500 W 0…3500 W 0…3500 W 0…3500 W
Stability at ΔI / ΔU < 0.75% PMax < 0.75% PMax < 0.75% PMax < 0.75% PMax
Accuracy (1 (at 23 ± 5°C) < 1.25% PMax < 1.5% PMax < 1.4% PMax < 1.5% PMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤ 0.2%
Resistance regulation
Adjustment range 0.01…12 Ω 0.09…120 Ω 0.42…480 Ω 0.8…1100 Ω
Accuracy (at 23 ± 5°C) ≤2% of max. resistance ± 0.3% of maximum current
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%

Page 11
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
3.5 kW Model
ELR 9080-170 ELR 9250-70 ELR 9500-30 ELR 9750-22
Analog interface (1
Set value inputs U, I, P, R
Actual value output U, I
Control signals DC on/off, Remote on/off, R mode on/off (4
Status signals CV, OVP, OT
Galvanic isolation to the device max. 1500 V DC
Sample rate (set value inputs) 500 Hz
Insulation
Input (DC) to enclosure DC minus: permanent max. 400 V
DC plus: permanent max. 400 V + max. input voltage
Input (AC) to input (DC) Max. 2500 V, short-term
Environment
Cooling Temperature controlled fans
Ambient temperature 0..50 °C
Storage temperature -20...70 °C
Digital interfaces
Featured 1x USB-B for communication, 1x USB-A for functions and HMI rmware updates,
1x Master-slave bus, 1x GPIB (optional)
Slot for AnyBus modules (2 CANopen, Probus, Pronet, RS232, Devicenet, Ethernet, ModBus
Galvanic isolation to the device max. 1500 V DC
Terminals
Rear side Share Bus, DC input, AC input/output, remote sensing, analog interface, USB-B,
master-slave bus, AnyBus module slot
Front side USB-A
Dimensions
Enclosure (WxHxD) 19“ x 3U x 609 mm
Total (WxHxD) 483 mm x 133 mm x 714 mm
Standards EN 60950, EN 50160 (grid class 2)
Weight 17 kg 17 kg 17 kg 17 kg
Article number (3 33200401 33200402 33200403 33200404
(1 For technical specications of the analog interface see „3.5.4.3 Analog interface specication“ on page 51
(2 Only in the standard version
(3 Article number of the standard version, devices with options will have a different number
(4 From production date 07/2015

Page 12
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
(1 Related to the nominal values, the accuracy denes the maximum deviation between an adjusted values and the true (actual) value.
Example: a 80 V model has min. 0.3% voltage accuracy, that is 240 mV. When adjusting the voltage to 5 V, the actual value is allowed to differ max. 240 mV, which
means it might be between 4.76 V and 5.24 V.
(2 Typical value at 100% input voltage and 100% power
3) Set values as in the display or as data readable via digital interfaces are more accurate than the corresponding value on the DC input. Their accuracy subtracts
from the general accuracy. For actual values it is vice versa. There the display accuracy adds to the general accuracy, so the error (i.e. deviation) will be higher.
7 kW Model
ELR 9080-340 ELR 9250-140 ELR 9500-60 ELR 9750-44 ELR 91000-30
AC Input/Output
Input/output voltage 195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
Input/output connection L1, L3, N, PE L1, L3, N, PE L1, L3, N, PE L1, L3, N, PE L1, L3, N, PE
Input/output frequency 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10%
Input/output fuse (internal) T16 A T16 A T16 A T16 A T16 A
Efciency (2 92.5% 93.5% 94.5% 94.5% 94.5%
DC Input
Max. input voltage UMax 80 V 250 V 500 V 750 V 1000 V
Max. input power PMax 7 kW 7 kW 7 kW 7 kW 7 kW
Max. input current IMax 340 A 140 A 60 A 44 A 30 A
Overvoltage protection range 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax
Overcurrent protection range 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax
Overpower protection range 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax
Max. allowed input voltage 100 V 300 V 600 V 850 V 1200 V
Min. input voltage for IMax 0.73 V 2.3 V 4.6 V 6.9 V 9.2 V
Temperature coefcient for set
values Δ / K Voltage / current: 100 ppm
Voltage regulation
Adjustment range 0...80 V 0...250 V 0...500 V 0...750 V 0...1000 V
Stability at ΔI < 0.05% UMax < 0.05% UMax < 0.05% UMax < 0.05% UMax < 0.05% UMax
Accuracy (1 (at 23 ± 5°C) < 0.3% UMax < 0.3% UMax < 0.3% UMax < 0.3% UMax < 0.3% UMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤ 0.2%
Remote sensing compensation max. 5% UMax
Current regulation
Adjustment range 0...340 A 0...140 A 0...60 A 0...44 A 0...30 A
Stability at ΔU < 0.15% IMax < 0.15% IMax < 0.15% IMax < 0.15% IMax < 0.15% IMax
Accuracy (1 (at 23 ± 5°C) < 0.4% IMax < 0.4% IMax < 0.4% IMax < 0.4% IMax < 0.4% IMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤ 0.2%
Compensation 10-90% ΔUDC < 0.6 ms < 0.6 ms < 0.6 ms < 0.6 ms < 0.6 ms
Power regulation
Adjustment range 0…7 kW 0…7 kW 0…7 kW 0…7 kW 0…7 kW
Stability at ΔI / ΔU < 0.75% PMax < 0.75% PMax < 0.75% PMax < 0.75% PMax < 0.75% PMax
Accuracy (1 (at 23 ± 5°C) < 1.3% PMax < 1.5% PMax < 1.4% PMax < 1.5% PMax < 1.4% PMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤ 0.2%
Resistance regulation
Adjustment range 0.005…6 Ω 0.04…60 Ω 0.21…240 Ω 0.43…550 Ω 0.83...950 Ω
Accuracy (at 23 ± 5°C) ≤2% of max. resistance ± 0.3% of maximum current
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%

Page 13
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
7 kW Model
ELR 9080-340 ELR 9250-140 ELR 9500-60 ELR 9750-44 ELR 91000-30
Analog interface (3
Set value inputs U, I, P, R
Actual value output U, I
Control signals DC on/off, Remote on/off, R mode on/off (4
Status signals CV, OVP, OT
Galvanic isolation to the device max. 1500 V DC
Sample rate (set value inputs) 500 Hz
Insulation
Input (DC) to enclosure DC minus: permanent max. 400 V
DC plus: permanent max. 400 V + max. input voltage
Input (AC) to input (DC) Max. 2500 V, short-term
Environment
Cooling Temperature controlled fans
Ambient temperature 0..50 °C
Storage temperature -20...70 °C
Digital interfaces
Featured 1x USB-B for communication, 1x USB-A for functions and HMI rmware updates, 1x
Master-slave bus, 1x GPIB (optional)
Slot for AnyBus modules (2 CANopen, Probus, Pronet, RS232, Devicenet, Ethernet, ModBus
Galvanic isolation to the device max. 1500 V DC
Terminals
Rear side Share Bus, DC input, AC input/output, remote sensing, analog interface, USB-B,
master-slave bus, AnyBus module slot
Front side USB-A
Dimensions
Enclosure (WxHxD) 19“ x 3U x 609 mm
Total (WxHxD) 483 mm x 133 mm x 714 mm
Standards EN 60950, EN 50160 (grid class 2)
Weight 24 kg 24 kg 24 kg 24 kg 24 kg
Article number (3 33200405 33200406 33200407 33200408 33200409
(1 For technical specications of the analog interface see „3.5.4.3 Analog interface specication“ on page 51
(2 Only in the standard version
(3 Article number of the standard version, devices with options will have a different number
(4 From production date 07/2015

Page 14
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
(1 Related to the nominal values, the accuracy denes the maximum deviation between an adjusted values and the true (actual) value.
Example: a 80 V model has min. 0.3% voltage accuracy, that is 240 mV. When adjusting the voltage to 5 V, the actual value is allowed to differ max. 240 mV, which
means it might be between 4.76 V and 5.24 V.
(2 Typical value at 100% input voltage and 100% power
3) Set values as in the display or as data readable via digital interfaces are more accurate than the corresponding value on the DC input. Their accuracy subtracts
from the general accuracy. For actual values it is vice versa. There the display accuracy adds to the general accuracy, so the error (i.e. deviation) will be higher.
10.5 kW Model
ELR 9080-510 ELR 9250-210 ELR 9500-90 ELR 9750-66 ELR 91500-30
AC Input/Output
Input/output voltage 195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
195...253 V L-N
340...440 V L-L
Input/output connection L1,L2,L3,N,PE L1,L2,L3,N,PE L1,L2,L3,N,PE L1,L2,L3,N,PE L1,L2,L3,N,PE
Input/output frequency 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10% 50/60 Hz ±10%
Input/output fuse (internal) T16 A T16 A T16 A T16 A T16 A
Efciency (2 92.5% 93.5% 94.5% 94.5% 94.5%
DC Input
Max. input voltage UMax 80 V 250 V 500 V 750 V 1500 V
Max. input power PMax 10.5 kW 10.5 kW 10.5 kW 10.5 kW 10.5 kW
Max. input current IMax 510 A 210 A 90 A 66 A 30 A
Overvoltage protection range 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax 0...1.1 * UMax
Overcurrent protection range 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax 0...1.1 * IMax
Overpower protection range 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax 0...1.1 * PMax
Max. allowed input voltage 100 V 300 V 600 V 850 V 1750 V
Min. input voltage for IMax 0.73 V 2.3 V 4.6 V 6.9 V 9.2 V
Temperature coefcient for set
values Δ / K Voltage / current: 100 ppm
Voltage regulation
Adjustment range 0...80 V 0...250 V 0...500 V 0...750 V 0...1500 V
Stability at ΔI < 0.05% UMax < 0.05% UMax < 0.05% UMax < 0.05% UMax < 0.05% UMax
Accuracy (1 (at 23 ± 5°C) < 0.3% UMax < 0.3% UMax < 0.3% UMax < 0.3% UMax < 0.3% UMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%
Remote sensing compensation max. 5% UMax
Current regulation
Adjustment range 0...510 A 0...210 A 0...90 A 0...66 A 0...30 A
Stability at ΔU < 0.15% IMax < 0.15% IMax < 0.15% IMax < 0.15% IMax < 0.15% IMax
Accuracy (1 (at 23 ± 5°C) < 0.4% IMax < 0.4% IMax < 0.4% IMax < 0.4% IMax < 0.4% IMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%
Compensation 10-90% ΔUDC < 0.6 ms < 0.6 ms < 0.6 ms < 0.6 ms < 0.6 ms
Power regulation
Adjustment range 0…10.5 kW 0…10.5 kW 0…10.5 kW 0…10.5 kW 0…10.5 kW
Stability at ΔI / ΔU < 0.75% PMax < 0.75% PMax < 0.75% PMax < 0.75% PMax < 0.75% PMax
Accuracy (1 (at 23 ± 5°C) < 1.3% PMax < 1.5% PMax < 1.4% PMax < 1.5% PMax < 1.4% PMax
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%
Resistance regulation
Adjustment range 0.003…4 Ω 0.03…40 Ω 0.14…160 Ω 0.29…360 Ω 1.2…1450 Ω
Accuracy (at 23 ± 5°C) ≤2% of max. resistance ± 0.3% of maximum current
Display: Adjustment resolution see section „1.9.6.4. Resolution of the displayed values“
Display: Accuracy (3 ≤0.2%

Page 15
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
10.5 kW Model
ELR 9080-510 ELR 9250-210 ELR 9500-90 ELR 9750-66 ELR 91500-30
Analog interface (3
Set value inputs U, I, P, R
Actual value output U, I
Control signals DC on/off, Remote on/off, R mode on/off (4
Status signals CV, OVP, OT
Galvanic isolation to the device max. 1500 V DC
Sample rate (set value inputs) 500 Hz
Insulation
Input (DC) to enclosure DC minus: permanent max. 400 V
DC plus: permanent max. 400 V + max. input voltage
Input (AC) to input (DC) Max. 2500 V, short-term
Environment
Cooling Temperature controlled fans
Ambient temperature 0..50 °C
Storage temperature -20...70 °C
Digital interfaces
Featured 1x USB-B for communication, 1x USB-A for functions and HMI rmware updates, 1x
Master-slave bus, 1x GPIB (optional)
Slot for AnyBus modules (2 CANopen, Probus, Pronet, RS232, Devicenet, Ethernet, ModBus
Galvanic isolation to the device max. 1500 V DC
Terminals
Rear side Share Bus, DC input, AC input/output, remote sensing, analog interface, USB-B,
master-slave bus, AnyBus module slot
Front side USB-A
Dimensions
Enclosure (WxHxD) 19“ x 3U x 609 mm
Total (WxHxD) 483 mm x 133 mm x 714 mm
Standards EN 60950, EN 50160 (grid class 2),
Weight 31 kg 31 kg 31 kg 31 kg 31 kg
Article number (3 33200410 33200411 33200412 33200413 33200414
(1 For technical specications of the analog interface see „3.5.4.3 Analog interface specication“ on page 51
(2 Only in the standard version
(3 Article number of the standard version, devices with options will have a different number
(4 From production date 07/2015

Page 16
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
A - Mains switch D - Share Bus and remote sensing connection G - Master-Slave ports B - Control panel E - DC input (view shows terminal type 1) C - Control interfaces (digital, analog) F - AC input/output connection
Figure 1 - Front side Figure 2 - Back side of standard version
1.8.4 Views

Page 17
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
Figure 3 - Left hand side Figure 4 - Right hand side

Page 18
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
Figure 5 - View from above

Page 19
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
ELR 9000 Series
Figure 6 - Control Panel
Overview of the elements of the operating panel
For a detailed description see section „1.9.6. The control panel (HMI)“ and „1.9.6.2. Rotary knobs“.
(1)
Touchscreen display
Used for selection of set values, menus, conditions and display of actual values and status.
The touchscreen can be operated with the ngers or with a stylus.
(2)
Rotary knob with push button function
Left knob (turn): adjusting the voltage, power or resistance set values, or setting the parameter values in
the menu.
Left knob (push): selection of the decimal position to be changed (cursor) in the current value selection.
Right knob (turn): adjusting the current set value, or setting parameter values in the menu.
Right knob (push): selection of the decimal position to be changed (cursor) in the current value selection.
(3)
On/Off Button for DC input
Used to toggle the DC input between on and off, also used to start a function run. The LEDs “On” and “Off”
indicate the state of the DC input, no matter if the device is manually controlled or remotely
(4)
USB-A port
For the connection of standard USB sticks up to 32GB, formatted to FAT32. Value tables for the function
generator (UI and IU functions) may be loaded or 100 arbitrary function sequences can be loaded or saved.

Page 20
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
[e-mail]
1.9 Construction and function
1.9.1 General description
The electronic high performance loads of the ELR 9000 series are especially suitable for test systems and industrial
controls due to their compact construction of a 19” enclosure with 3 height units (3U). Apart from basic functions of
electronic loads, set point curves can be produced in the integrated function generator (sine, rectangular, triangular
and other curve types). Arbitrary curves can be stored on and uploaded from a USB ash drive.
For remote control using a PC or PLC the devices are provided as standard with a USB-B slot on the back side
as well as a galvanically isolated analog interface.
Via optional plug-in interface modules other digital interfaces such as Probus, ProNet, ModBus, CANopen and
more can be added. These enable the devices to be connected to standard industrial buses simply by changing or
adding a small module. The conguration, if at all necessary, is simple. Thus the loads may, for example, be oper-
ated with other loads or even other types of equipment or controlled by a PC or PLC, all using the digital interfaces.
In addition the devices offer the possibility to connect to compatible power supplies via a Shared Bus, in order to
create a so-called two-quadrants system. This operation mode uses the source-sink principle for testing devices,
components and other parts in many industrial areas.
A genuine master-slave connection with totalling of the slave units is also provided as standard. Operating in this
way allows up to 10 units to be combined to a single system with a total power of up to 105 kW.
The generated DC energy is converted through a high efciency internal inverter and fed back as AC energy into
the 230 V mains.
All models are contolled by microprocessors. These enable an exact and fast measurement and display of actual
values.
1.9.2 Block diagram
The block diagram illustrates the main components inside the device and their relationships.
There are digital, microprocessor controlled components (KE, DR, BE), which can be target of rmware updates.
Power block
1...3
Controller
(DR)
Commu-
nication
(KE)
HMI (BE)
AC
DC
MS
Anybus or
(opt.) GPIB USBUSB Ana log
Share &
Sense
ELR 9000
Block diagram