ULB ULB-R110-480-240-IP User manual

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INSTRUCTION MANUAL
110KW PORTABLE
RESISTIVE LOAD BANK
MODEL NO. ULB-R110-480-240-IP
Published by:
Universal Load Banks, LLC.
28200 Lakeview Drive
Wixom, MI 48393
Customer Service:
E-mail: service@universalloadbanks.com
Website: www.universalloadbanks.com
Phone: 248-306-8011
Date of Original: 2021 SEP

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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LIST OF EFFECTIVE PAGES
Insert latest changed pages and dispose of superseded pages in accordance with
applicable regulations. The total number of pages in this manual is approximately 42
consisting of the following:
Page No. Change Date
1 - 39 Original May 2018
1- 40 Settings details added May 2018
1-42 Settings details added Sep 2021

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possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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ABBREVIATIONS AND ACRONYMS
The following is a list of abbreviations and acronyms used throughout this manual.
A Amperes (Amps)
AC Alternating current
AI Analog Input
AO Analog Output
CMM Component Maintenance Manual
DC Direct Current
Deg Degree
DI Digital Input
DMM Digital Multi meter
DO Digital Output
F Fahrenheit
F.S Full scale
Ft-lbs Foot pounds
GND Ground
HMI Human Machine Interface
Hz Hertz
In-lbs Inch pounds
KVA Kilovolt amps
KW Kilowatt
LCD Liquid Crystal Display
LED Light Emitting Diode
L-L Line to Line
L-N Line to Neutral
mA Milli ampere
MSDS Material Safety Data Sheet
mV Millivolt
NEC National Electric Code
NFPA National Fire Protection Association
OSHA Occupational Safety and Health Administration
UL Underwriters Laboratory
VAC Volts AC

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possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Table of Contents
LIST OF EFFECTIVE PAGES 2
ABBREVIATIONS AND ACRONYMS 3
SAFETY POINTS 5
SAFETY PRECAUTIONS 5
KEEP AWAY FROM LIVE CIRCUITS 5
SHOCK HAZARD 5
DO NOT SERVICE OR ADJUST ALONE 5
SAFETY EARTH GROUND 5
CHEMICAL HAZARD 5
EMERGENCY AID 5
POTENTIALLY HAZARDOUS OPERATOR CONDITIONS 6
EMERGENCY SHUT-DOWN 7
SAFETY SYMBOLS 8
INSPECTION AND UNPACKING 10
PRODUCT OVERVIEW 11
OPERATING INSTRUCTIONS 12
GENERAL 12
OPERATION 13
Safeties 14
Load Element status 15
POWER DATA 16
History data for Power/Voltage/Ampere 17
LOAD PROFILE 18
SINGLE PHASE OPERATION 21
OPERATING MULTIPLE LOAD BANKS 24
Software set up 25
Physical connection 27
Powering up Master – Slave Load banks 27
DATA LOGGING 30
SHUT-DOWN 31
SAFETY AND SHUT-DOWN INDICATORS 31
MAINTENANCE 32
VOLTAGE/CURRENT SETTINGS 33
DAILY MAINTENANCE PRIOR TO OPERATION 35
QUARTERLY MAINTENANCE (EVERY THREE MONTHS) 35
ADDITIONAL PREVENTATIVE MAINTENANCE MEASURES (AS REQUIRED) 38
TROUBLESHOOTING 39
STORAGE 41
SHIPPING 41
CUSTOMER SERVICE 41
CONTACT INFORMATION 41
APPENDIX A: ELECTRICAL SCHEMATICS 42
APPENDIX B: BILL OF MATERIAL 42
APPENDIX C: DIMENSIONAL DRAWINGS 42

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from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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SAFETY POINTS
Safety Precautions
The following instructions are general safety precautions that are not necessarily related to
any specific part or procedure and do not necessarily appear elsewhere in this publication.
These precautions must be thoroughly understood and applied to all phases of operation
and maintenance.
This manual contains various Warning and Caution statements. Personal injury or death
may occur to an operator and/or technician if a warning statement is ignored. Equipment
damage or hazardous conditions for personnel could result if caution or warning
statements are ignored. Carefully read and review this instruction manual, supplemental
manuals and all electrical schematic/interconnection drawings provided with the Load
Bank prior to installation and operation.
Keep Away From Live Circuits
Operating and Maintenance personnel must at all times observe normal safety regulations.
Do not replace components or make adjustments to equipment with power turned on. To
avoid casualties, always remove power to the entire system. Turn off and disconnect the
main-power source under test. Disconnect all sources of power to the Load Bank (Main
input load bus, cooling fan circuit, and 120 VAC control circuits).
Shock Hazard
Load Banks contain lethal voltages when connected to the power source. Power to the
load resistors (main input load bus), power to cooling fan circuits, and power to 120 VAC
control circuits must be removed before servicing. Allow adequate time after removing
power before servicing or touching any components.
Do Not Service or Adjust Alone
Under no circumstances should any person reach into an enclosure for the purpose of
service or adjustment of equipment except in the presence of someone who is capable of
rendering aid.
Safety Earth Ground
An uninterruptible and approved earth ground must be supplied from the main power
source. Serious injury or death can occur if this grounding is not properly supplied.
Grounding of this equipment should be done by qualified personnel only and must be
installed in accordance with all applicable national and local electrical codes and
regulations.
Chemical Hazard
No chemicals are included in the manufacturing or operation of this unit. There are no
chemical hazards to consider.
Emergency Aid
Personnel working with or near high voltages should be familiar with modern methods of
resuscitation.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Potentially Hazardous Operator Conditions
Read this manual prior to operation.
Always run an approved ground conductor from the load bank frame to the power
source under test which in turn must be properly earth grounded.
Do not operate the unit unattended. Access to an approved electrical fire extinguisher
should be on hand at all times.
Do not operate the Load Bank with access panels removed or doors open. Doing so
would expose personnel to potential injury from electrical shock or from a moving fan
blade.
Careful consideration needs to be taken during installation and equipment location
during operation.
Hot exhaust air can cause damage to other installed equipment.
Do not direct hot exhaust air in the direction of other installed equipment?
Do not allow hot-air exhaust to recirculate through the cold-air intake.
Do not allow objects to enter or block the cold-air intake or hot-air exhaust.
Avoid blocking the air intake and ensure the area around the load bank is clear of
debris.
Do not install any external cold-air intake or hot-air exhaust duct work to the Load Bank
for ventilation.
The Load Bank must be installed and operated in a cool, well ventilated area with
adequate clearance for both intake and exhaust air. Do not allow hot air exhaust to
recirculate into the cold-air intake.
The load bank must be positioned to allow for a 4 foot intake clearance as well as a 20
foot exhaust clearance.
The unit should always be operated outdoors in a clean, cool, well-ventilated area free
of dust and debris.
Exhaust opening should not be obstructed and consideration should be given to any
combustibles around the unit due to hot air exhaust.
The Load Bank must be positioned and installed to allow for a 4 Foot intake clearance
as well as a 20 Foot exhaust clearance, avoid blocking the air intake and ensure the
area around the load bank is clear of debris
Operating personnel should avoid and never come in contact with the hot-air exhaust
and/or surrounding covers during operation and for some-time after operation as these
surfaces become hot and may result in a serious burn injury.
Never bypass any blown fuse.
Do not bypass any safety circuit including but not limited to, cooling fan overcurrent,
exhaust over-temperature switch.
Always short/shunt current transformer secondary circuits when troubleshooting
metering and instrumentation circuits.
Operating personnel should not come in contact with hot air exhaust opening, outside
panels, system components, and load resistors for some time after operation.
A recommended 5 minute cool down period of the cooling fan circuit, with no load
applied is recommended as best practice and will protect operating personnel from
possible burn injuries. A 5 minute cool down should adequately remove any residual
heat from the Load Bank and system components.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Emergency Shut-Down
In a controlled emergency stop condition, click <LOAD DROP> button on display allowing
cooling fan to run while all load steps are disconnected. Turn off and disconnect the main-
power source under test. Disconnect all sources of power to the Load Bank (Main input
load bus) and External 120 VAC control power.
Maintenance should always be done only by qualified personnel and with all sources of
power disconnected from the unit (main input load bus power, power to all cooling fan and
control circuits). Always follow The National Electric Code (NEC), local electrical safety
codes and the Occupational Safety and Health Act (OSHA) when handling, installing, and
operating equipment to reduce hazards, personal injury and property damage.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Safety Symbols
WARNING
Warning notes call attention to a procedure, which if not correctly performed could result in
personal injury.
CAUTION
Caution notes call attention to a procedure, which if not correctly performed could result in
damage to the unit. This symbol indicates that a shock hazard exists if the precautions in
the instruction manual are not followed. The caution symbol appears on the equipment
indicating there is important information in the instruction manual regarding that particular
area. This symbol indicates that the unit radiates heat and should not be touched while
hot.
NOTE: Calls attention to supplemental information.
Warning Statements
The following safety warnings appear in the text where there is danger to operating
personnel. They are noted and repeated here for emphasis.
WARNING
Disconnect unit from all power sources before any disassembly or service. Main input
Load Bus, & External 120 VAC control power.
WARNING
Do not insert a screwdriver or any thin metal objects through the perforated cooling air
grilles while the load bank is in operation. The fan blade and power within the unit could
cause serious injury to personnel and damage to the unit.
WARNING
Do not remove the enclosure covers while unit is in operation or operate with covers
removed. Unit will not properly cool without all covers in place and pose a shock hazard to
personnel.
WARNING
Do not touch the enclosure surfaces while the unit is in operation. Enclosure surfaces are
hot and exhaust temperatures can reach in excess of 500ºF when unit is under load and in
operation.
WARNING
Do not look into enclosure while in operation. Exhaust temperatures can reach
temperatures in excess of 500ºF when unit is under load and in operation. Dust and or
debris may also be present.
WARNING
Do not position the exhaust to blow on other equipment or material susceptible to
excessive heat. Never direct exhaust air towards flammable materials.
Caution Statements
The following equipment cautions appear in the text whenever the equipment is in danger
of damage. They are noted and repeated here for emphasis.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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CAUTION
Air enters through the right side cold-air intake of the enclosure and exhausts at the left
side hot-air exhaust end of the enclosure. Blocking these openings will cause overheating
and unit failure.
CAUTION
Do not apply more than the rated Voltage or exceed the power rating of the Load Bank.
Excessive power will damage the internal resistor banks.
CAUTION
Confirm all control voltages before operation. Improper Voltage or Over-Voltage will
damage load resistors, cooling fan and control components.
CAUTION
Confirm that all load, control, and cooling fan connections are securely attached, turned,
and tightened, and that the unit is properly grounded prior to operation. Failure to do so
may result in equipment damage and harm to personnel.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Inspection and Unpacking
As part of your safety program, an initial inspection of all equipment should occur after
receiving the unit. Periodic preventative maintenance and inspections should be performed
to ensure system reliability. Upon receipt of your Load Bank, be sure to carefully unpack
the unit and inspect the unit carefully for any shipping damage. Check for loose, broken or
otherwise damaged parts due to shipping. If damage is noticed, do not unpack the unit.
Immediately notify ULB LLC and report any shipping damage to the freight carrier. Be sure
to verify that the part number and ratings listed on the nameplate match the order
specification. The ratings listed on the nameplate are critical – installing, operating
and energizing the incorrect part number could damage the unit and load resistors.
If the unit is not damaged, unpack the equipment and remove protective stretch wrap.
Remove all covers and inspect all of the components for visual signs of damage.
Immediately notify the freight carrier and ULB LLC of equipment damage or missing parts.
Reinstall packing materials for storage with exception of stretch wrap. Do not store the
unit with the protective plastic in place.
NOTE: Do not reinstall or reapply protective stretch wrap. This material is meant for
shipping protection only. Prolonged storage in stretch wrap may cause condensation
damage to powder coat, painted, or mill galvanized finishes.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Product Overview
ULB-R110-480-240-IP Series of portable indoor Resistive Load Banks are designed for
installation and operations indoors. The Load Bank is an industrial power test unit
specifically designed for indoor operation and will absorb a balanced resistive load at unity
power factor. A hand held Operator Control Unit with HMI Display allows the user to
control and monitor individual-discrete load steps, cooling fans, control circuits, and safety
circuits. Electrical energy from the power source under test is absorbed by the load bank
resistors and converted into heat. The installed cooling fans provide necessary cooling
airflow to cool the resistor load elements. The Load Bank Unit and hand held control unit
provide the necessary principle system components for control and operation.
ULB-R110-480-240-IP Series of portable indoor Resistive Load Banks are digitally
controlled with networking capabilities. The unit is operated by a hand held touch screen
controller which is connected to load bank by a supplied control cable assembly.
The load bank is portable unit with casters and handles, hence it can be easily moved to
the testing place. Power connections plug in to Cam-Lok Connectors provided on the load
bank. Use included power cord to connect 120VAC, 60Hz power from 10A outlet plug to
load bank’s Control and cooling fan power circuits.
Load Circuits: Includes load power resistors, load step switching and main input load
bus.
Cooling System: Includes 120VAC externally powered cooling fans installed inside
load bank. PLC controller monitors health status of cooling fans and failure of cooling
fans is indicated on HMI display. Any connected load is automatically disconnected
when cooling fan failure is detected.
Control Circuits: Includes 120 VAC controls, load application circuits, cooling fans
circuits, and hand held display unit.
Safety Circuits: This load bank is provided with automatic protection to de-energize
the load elements if un-safe conditions arise on following signals. Also, branch circuit
protection for load power resistor circuits, cooling fans & control circuits are provided.
1) Over voltage and voltage imbalance on 3 phase 480/240VAC input power
2) 3 phase 480/240VAC input power is not within safe limit of operation.
3) Over temperature on exhaust air outlet.
4) 3 Phase (480/240VAC) current imbalance due to failure in load element / circuit
component inside load bank or external 3 phase power voltage (480/240VAC) are
imbalance.
5) Fan Fault due to failure of cooling fan(s) inside the load bank.
The Load Bank should never be used without the cooling fans operating. Inadequate
cooling airflow will result in resistor load elements overheating, fire hazard, and
danger to personnel.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Operating Instructions
General
All installation should be reviewed and checked by a qualified technician with all local
and National Electric codes observed.
Ensure all connections are properly tightened and all covers are installed.
Never operate the unit un-attended.
All wiring from external power sources to Load Bank Unit should be verified and
checked by a qualified technician with all local and National Electric codes observed.
All interconnection wiring of Operator Control Unit and Load Bank should be verified
and checked by a qualified technician with all local and National Electric Codes
observed.
The following Cautions and Warnings should be strictly enforced.
CAUTION
Operation of the unit with any covers removed will disrupt air flow and allow debris to pass
through resistors possibly damaging equipment.
WARNING
Operation of the unit with any covers removed will pose a shock hazard and danger to
personnel.
WARNING
Do not look into the exhaust of the enclosure while in operation. Exhaust temperatures can
reach temperatures in excess of 500ºF when unit is under load and in operation. Dust and
or debris may also be present.
WARNING
Do not touch the enclosure surfaces while the unit is in operation. Enclosure surfaces are
hot and exhaust temperatures can reach in excess of 500ºF when unit is under load and in
operation.
WARNING
Exhaust opening should not be obstructed and consideration should be given to any
combustibles around the unit due to hot air exhaust.
The Load Bank must be positioned and installed to allow for a 4 Foot intake clearance
as well as a 20 Foot exhaust clearance, avoid blocking the air intake and ensure the
area around the load bank is clear of debris
WARNING
Do not insert a screwdriver or any thin metal objects through the perforated cooling air
grilles while the load is in operation. The power within the unit could arc over and will
cause serious injury to personnel and damage to the unit.
WARNING
Do not operate under load without cooling fan in motion. Immediate equipment damage
may result.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Operation
Connect the power source under test to CAM-LOK connectors provided on the load bank
using suitable mating CAM-LOK plugs and cables sized per the NEC (National Electric
Code) or any local codes.
The Load Bank is provided with color coded qty.01 CAM-LOK connectors (400A Max.) for
each phase (L1/L2/L3) and One Connector for Ground Cable connection.
Load cable conductors from the power source to the load bank and mating CAM-LOK
cable plugs should be adequately sized and protected to handle the maximum rated load
and in accordance to the National Electric Code and any local codes.
Turn on the power source under test.
Connect external 120VAC,1-Phase, 50/60Hz, 10A Power Source using supplied
cord with plug to the load bank.
HMI Display (E1A) on hand held unit will turn on.
Use main screen on HMI display (as shown below figure-1) to set require KW.
Figure-1 Main Screen.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Safeties
Any alarm condition existing in the load bank is indicated by load bank ‘SAFETY NOT OK’
indication on the top right corner of the main screen on HMI. To investigate ‘SAFETY NOT
OK’ status, click <SAFETY> button on Main screen to see following screen (see figure-2)
Figure-2 Safety Parameters
All load steps are disabled and load cannot be applied unless all above parameters are in
OK status (Green Color).
Following table show various alarm conditions and their settings (See table-1)
Sr no Alarm Conditions Settings Note
1 Over voltage at 480VAC 510VAC Settable in fault setting
screen in Maint. Mode
2 Over voltage at 240VAC 255VAC Settable in fault setting
screen in Maint. Mode
3 3 PH Current Imbalance at 480VAC 5 AMP Settable in fault setting
screen in Maint. Mode
4 3 PH Current Imbalance at 240VAC 10 AMP Settable in fault setting
screen in Maint. Mode
5 Over Temperature High Exhaust
Temperature in Heater
element section
6 Fan Fault 2.65 amp Set over dial on
E503A CSR current
switch
7 3 PH Voltage Imbalance at
240/480VAC
15V Settable in fault setting
screen in Maint. Mode
Table-1

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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CAUTION
DO NOT operate the Load Bank over rated nameplate Voltage as this will cause
catastrophic failure. The operation of the cooling fan circuit is critical for safe operation. If
over-temp status is NOT OK then, all load steps are disabled and load cannot be applied.
DO NOT attempt to bypass the over temperature switch as this will cause catastrophic
damage to the unit.
Use HMI display touch screen to set require KW. Minimum KW resolution that can
be selected is 5KW. Set desired time duration in Hours (HR.) and Minutes (MIN.) for
which selected KW is to be applied.
Click <LOAD APPLY> button on Main Screen. This action will start cooling fan and
the preselected amount of load KW will be applied to the power source under test.
Any available combination of incremental KW load values can be turned ON/OFF during
operation to achieve the desired load on the power source under test.
Also, When set time duration is over, load will automatically disconnect and cooling fan will
continue to run for pre-set cooling time of 5 minutes (OR as set in the Maintenance
screen).
Load Element status
Click<LOAD ELEMENT STATUS> button and following resistive load status screen will
appear (see figure-3)
Figure-3 Load Elements ON/OFF status

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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POWER DATA
While load test is running following activities can be done from various screens on HMI.
1) Power data display: Click <POWER DATA> button on main screen and following
power data screen will appear (see below figure-4)
Figure-4 Power data

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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History data for Power/Voltage/Ampere
Click <HISTORY DATA> button on Power Data Screen and history data screen
showing past history of Wattage.(see figure-5)
Figure-5 History data
Click <Main Screen> button to switch back to Main Screen.
Note:
If USB stick is inserted on USB port on the HMI display then “SCREEN CAPTURE” button
will appear on various screens.
Click <SCREEN CAPTURE> button to copy screen image to USB Stick.
WARNING
While Load bank is running (with load applied condition) setting Load Dump Switch to ON
(upward) position will cut off all applied load. However, cooling fan will continue to run until
pre-set cooling time is over.
A recommended 5 minute cool down period of the cooling fan circuit, with no load applied,
should adequately remove any residual heat from the Load Bank and system components.
WARNING
Click <Load Drop> button any time will cut of all applied load. However, cooling fan will
continue to run until pre-set cooling time is over.

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ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
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Load Profile
Using this feature, load bank can be configured to operate at various load condition for
predetermined time. Following are the steps to configure load profile.
1) While load bank is not running, click <Load Profile> button on main screen,
following screen will appear(see figure-6)
Figure-6 Load Profile
2) Select no. of load steps from 1 to 10 using drop down menu. Screen will start
showing entry fields for Hours, minutes and KW values depending on number of
steps selected in drop down menu. Following is the example screen if number of
steps selected are 10.(see figure-7)

------------------------------------------------------------------------------------------------------------------------
ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
C:\Users\Service-Eng\Desktop\Mx\Manuals\ULB-R110 MANUAL_rev02.docx Page 19 of 42
Figure-7 Load Profile
3) Enter require Hr., Min, and KW values for each step and click <ACTIVATE> button.
a. Now Load bank will start operating with Hr., Min. and KW values selected for
step#1. This will be indicated by flashing of step 1 entry fields.
b. ACTIVATE button will now change to DEACTIVATE meaning load profile run
of load bank can be deactivated and hence applied load can be disconnected
anytime by click on this button.
c. Click <BACK> button to display main screen.
d. Flashing <LOAD PROFILE> button on main screen indicates that load bank
is operating with activated load profile.
Note: Following buttons / entries on main screen are disabled when load
profile is active,
i. KW SELECT entry
ii. Load Increase button,
iii. Load Decrease button,
iv. LOAD APPLY button,
v. HR. entry,
vi. MIN. entry,
e. Load bank will continue to operate at KW values, Hr and Min selected for
step#1, then after step#2 will be activated and load bank will operate at the
values selected for step#2.This will be indicated by flashing values under that
step.
f. In this way, load bank will continue to operate until the last step is reached.
Then after the entire load will be disconnected. However, cooling fan will
continue to run until pre-set cooling time is over.

------------------------------------------------------------------------------------------------------------------------
ULB PROPRIETARY RIGHTS NOTICE - This document contains the confidential and proprietary information of ULB. You may not
possess, use, copy or disclose this document or any information in it for any purpose without express written permission. Neither receipt
from any source, nor possession of this document, constitutes such permission. Possession, use, copying or disclosure by anyone
without express written permission of ULB is not authorized and may result in criminal and/or civil liability.
C:\Users\Service-Eng\Desktop\Mx\Manuals\ULB-R110 MANUAL_rev02.docx Page 20 of 42
WARNING
Click <Load Drop> button any time will cut of all applied load and deactivate LOAD
PROFILE. However, cooling fan will continue to run until pre-set cooling time is over.
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