w w w. m g e u p s . c o m
EPS 7000
Single Module and
Shared Systems
Installation Manual
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Installation Manual
EPS 7000
Single Module and
Shared Systems
Installation Manual
For service call
1-800-523-0142
86-134003-00 X1 01/06
Copyright © 2004 MGE UPS SYSTEMS, Inc.
All rights reserved. Printed in U.S.A.
MGE UPS SYSTEMS, Inc.
1660 Scenic Avenue
Costa Mesa, CA 92626
(714) 557-1636
page iii
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EPS 7000 Single and Shared Systems
EPS 7000
Installation Manual
Warranty
The liability of MGE UPS SYSTEMS, Inc. hereunder is limited to replacing or repairing at MGE UPS
SYSTEMS, Inc.’s factory or on the job site at MGE UPS SYSTEMS, Inc.’s option, any part or parts which are
defective, including labor, for a period of 12 months from the date of purchase. The MGE UPS SYSTEMS, Inc.
shall have the sole right to determine if the parts are to be repaired at the job site or whether they are to be
returned to the factory for repair or replacement. All items returned to MGE UPS SYSTEMS, Inc. for repair or
replacement must be sent freight prepaid to its factory. Purchaser must obtain MGE UPS SYSTEMS, Inc.’s
Return Materials Authorization prior to returning items. The above conditions must be met if warranty is to be
valid. MGE UPS SYSTEMS, Inc. will not be liable for any damage done by unauthorized repair work, unautho-
rized replacement parts, from any misapplication of the item, or for damage due to accident, abuse, or Act of
God.
In no event shall the MGE UPS SYSTEMS, Inc. be liable for loss, damage, or expense directly or indirectly
arising from the use of the units, or from any other cause, except as expressly stated in this warranty. MGE
UPS SYSTEMS, Inc. makes no warranties, express or implied, including any warranty as to merchantability or
fitness for a particular purpose or use. MGE UPS SYSTEMS, Inc. is not liable for and Purchaser waives any
right of action it has or may have against MGE UPS SYSTEMS, Inc. for any consequential or special damages
arising out of any breach of warranty, and for any damages Purchaser may claim for damage to any property or
injury or death to any person arising out of its purchase of the use, operation or maintenance of the product.
MGE UPS SYSTEMS, Inc. will not be liable for any labor subcontracted or performed by Purchaser for
preparation of warranted item for return to MGE UPS SYSTEMS, Inc.’s factory or for preparation work for field
repair or replacement. Invoicing of MGE UPS SYSTEMS, Inc. for labor either performed or subcontracted by
Purchaser will not be considered as a liability by the MGE UPS SYSTEMS, Inc.
This warranty shall be exclusive of any and all other warranties express or implied and may be modified
only by a writing signed by an officer of the MGE UPS SYSTEMS, Inc. This warranty shall extend to the
Purchaser but to no one else. Accessories supplied by MGE UPS SYSTEMS, Inc., but manufactured by others,
carry any warranty the manufacturers have made to MGE UPS SYSTEMS, Inc. and which can be passed on to
Purchaser.
MGE UPS SYSTEMS, Inc. makes no warranty with respect to whether the products sold hereunder
infringe any patent, U.S. or foreign, and Purchaser represents that any specially ordered products do not
infringe any patent. Purchaser agrees to indemnify and hold MGE UPS SYSTEMS, Inc. harmless from any
liability by virtue of any patent claims where Purchaser has ordered a product conforming to Purchaser’s speci-
fications, or conforming to Purchaser’s specific design.
Purchaser has not relied and shall not rely on any oral representation regarding the Product sold
hereunder and any oral representation shall not bind MGE UPS SYSTEMS, Inc. and shall not be part of any
warranty.
There are no warranties which extend beyond the description on the face hereof. In no event shall MGE
UPS SYSTEMS, Inc. be responsible for consequential damages or for any damages except as expressly stated
herein.
Service and Factory Repair - Call 1-800-523-0142
Direct questions about the operation, repair, or servicing of this equipment to MGE UPS SYSTEMS, Inc.
Technical Support Services. Include the part number and serial number of the unit in any correspondence.
Should you require factory service for your equipment, contact MGE UPS SYSTEMS, Inc. Technical Support
Services and obtain a Return Materials Authorization (RMA) prior to shipping your unit. Never ship equipment
to MGE UPS SYSTEMS, Inc. without first obtaining an RMA.
Proprietary Rights Statement
The information in this manual is the property of MGE UPS SYSTEMS, Inc., and represents a proprietary
article in which MGE UPS SYSTEMS, Inc., retains any and all patent rights, including exclusive rights of use
and/or manufacture and/or sale. Possession of this information does not convey any permission to reproduce,
print, or manufacture the article or articles shown herein. Such permission may be granted only by specific
written authorization, signed by an officer of MGE UPS SYSTEMS, Inc.
IBM, PC-AT, ES/9000, and AS/400 are trademarks of International Business Machines Corporation. MGE
and MGE UPS SYSTEMS are trademarks of MGE UPS SYSTEMS, Inc. Other trademarks that may be used
herein are owned by their respective companies and are referred to in an editorial fashion only.
Revision History
EPS 7000 Single Module and Shared System Installation Manual
86-134003-00
Copyright © 2004 MGE UPS SYSTEMS, Inc.
All rights reserved
08/2004
Printed in U.S.A.
X0
X1
R&D-001651
R&D-001943
01/2006
page iv
Warranty Information
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Installation Manual
How To Use This Manual
This manual is designed for ease of use and easy location of information.
To quickly find the meaning of terms used within the text, look to the Glossary.
To quickly find a specific topic, look at the Table of Contents.
This manual uses Note lines and icons to convey important information.
Note lines and icons come in four variations.
WARNING:
Indicates information provided to protect the User and
service personnel against safety hazards and possible
equipment damage.
CAUTION:
NOTE:
Indicates information provided to protect the User and
service personnel against possible equipment damage.
Indicates information provided as an operating tip or an
equipment feature.
IMPORTANT:
Indicates information provided as an operating instruction
or as a tip.
page v
How To Use This Manual
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EPS 7000 Single and Shared Systems
CAUTION
RECORD ALL SERIAL NUMBERS FOR THE UPS
MODULE AND SSC.
THESE SERIAL NUMBERS WILL BE REQUIRED IF
YOUR SYSTEM NEEDS SERVICE. KEEP THIS
MANUAL IN A PLACE WHERE YOU CAN REFERENCE
THE SERIAL NUMBERS IF SERVICE IS REQUIRED!
SINGLE MODULE SERIAL NUMBER: _______________________________________________
SSC SERIAL NUMBER: __________________________________________________________
ADDITIONAL MODULE SERIAL NUMBERS:
UPS DESIGNATION:
UPS SERIAL NUMBER:
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
__________________________ ______________________________
page vi
CAUTION: Record All Serial Numbers
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Installation Manual
Contents
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
section
Important Safety Instructions . . . . . . . . . . . . . . . . . .Inside Front Cover
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
How To Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
CAUTION: Record All Serial Numbers . . . . . . . . . . . . . . . . . . . . . . .vi
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .c-i
Section 1 Introduction
section
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
1.0
1.1
1.2
1.3
1.4
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Section Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Receiving for Single Modules and Shared Systems . . . . . . . . . . . .1-3
1.4.1 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.4.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.4.3 Prerequisites to Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.4.4 Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.4.5 Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.4.6 Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
UPS Single Module and Shared System Specifications . . . . . . . . . .1-4
1.5.1 Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.5.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1.5.3 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1.5.4 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1.5
Section 2 Description, Single Module and Shared Systems
section
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
2.0
Single-Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.0.1 Single-Module Internal components . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.0.2 Single Module Major Internal Components . . . . . . . . . . . . . . . . . . .2-3
2.0.3 Single Module Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Shared System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
2.1.1 Shared System Major Internal Components . . . . . . . . . . . . . . . . . . .2-9
2.1.2 Shared System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
SSC Major Internal Components . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.2.1 Static Switch Cabinet Specifications . . . . . . . . . . . . . . . . . . . . . . . .2-11
2.2.1.1 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
2.2.1.2 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
2.1
2.2
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EPS 7000 Single and Shared Systems
Section 3 Installation, Single Module and Shared Systems
section
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
3.0
3.1
Installation For Single Module and Shared Systems . . . . . . . . . . . .3-1
UPS Placement for Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.1.1 Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.2.1 Single Module Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.2.2 Shared Systems Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.2.3 Installations with More Than 50,000Amps Available Fault Current .3-3
Main AC Input, (Mains 1) Connections . . . . . . . . . . . . . . . . . . . . . . .3-4
3.3.1 Single Module Bypass AC Input (Mains 2) Connections . . . . . . . . .3-4
3.3.2 Shared System Bypass AC Input (Mains 2) Connections . . . . . . . .3-4
3.3.3 Battery Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.3.4 Power Connections, Inter-Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
AC Output Connections for Single Module and Shared Systems . .3-5
3.4.1 Single Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.4.2 Shared Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.4.3 Customer Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Control Connection, Inter-Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.5.1 Single Module Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.5.2 Shared Systems Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Finishing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
3.7.1 Checks Before Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
3.7.2 Checks After Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Section 4 Maintenance
section
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
4.0
4.1
4.2
4.3
4.4
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Important Safety Instructions for Servicing Batteries . . . . . . . . . . . .4-1
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Glossary
g-1
page c ii
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Installation Manual
Figures
figure description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
1-1
1-2
EPS 7000 Single-Module System Configuration, 1 GCC per Module . . . . .1-2
EPS 7000 System, S-S Configuration, 1 GCC per system in SSC . . . . . . .1-2
2-1
2-2
Typical Single-Line Diagram, (480 VAC Input/Output
Single Module 500 kVA UPS with Battery Disconnect) . . . . . . . . . . . . . . . .2-1
EPS 7000 Major Internal Components
(Single Module 500 kVA UPS, I/O Cabinet) . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Circuit Breaker locations in Maintenance Bypass Cabinet. . . . . . . . . . . . . .2-4
Typical Single Line Diagram, (480 VAC Input/Output
2-3
2-4
Multi-Module UPS with Battery Disconnect) . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Single-Line Diagram, typical EPS 7000 Shared Installation . . . . . . . . . . . . .2-7
EPS 7000 Major Internal Components,
2-5
2-6
Shared System UPS, UPS Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
EPS 7000 Major Internal Components,
Static Switch Cabinet (SSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
2-7
3-1
3-2
Restrain cable configuration for fault currents
exceeding 50,000amps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Shared System Busbars, Circuit Breakers, and
Conduit Landing Panel, SSC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Tables
table description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page
1-1
System Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2-1
2-2
2-3
EPS 7000 Single Module Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
EPS 7000 Shared Systems Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Model Number, Static Switch Cabinets (SSC) . . . . . . . . . . . . . . . . . . . . . . .2-6
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EPS 7000 Single and Shared Systems
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Installation Manual
Introduction
1.0
Scope
This manual provides technical information required for installation and maintenance of the EPS 7000 uninterrupt-
ible power system (UPS) single module and shared system. Please read this manual before installing the EPS 7000
equipment. Please retain this manual for future reference.
The EPS 7000 Users Manual, Single Module (MGE part number 86-134004-00) provides detailed operating instruc-
tions for single module systems; the EPS 7000 Users Manual, Shared Systems (MGE part number 86-134005-00)
provides detailed operating instructions for shared systems.
1.1
1.2
Reference Manuals
86-134004-00 EPS 7000 Users Manual, Single Module
86-134005-00 EPS 7000 Users Manual, Shared System
Section Descriptions
This manual is divided into four sections:
Section 1 Introduction
This section introduces the EPS 7000 uninterruptible power system Single Module and Shared Systems, receiving,
handling, and storage procedures; including a general description of system specifications.
Section 2 Descriptions, Single Module and Shared System
This section is a general description of the EPS 7000 single-module and shared systems, their internal components,
diagrams, and available system options.
Section 3 Installation, Single-Module and Shared System
This section describes the installation for EPS 7000 single module and shared systems. Including cabinet connec-
tions, mains1 & 2, AC Bypass Input/Outputs, and the Battery. Each paragraph is titled for single module or shared
system descriptions when applicable.
Section 4 Maintenance
This section describes maintenance of the EPS 7000, including safety instructions, preventive maintenance, and
information about replacement parts.
A Glossary in the rear of this manual provides definitions of terms used within the text.
page 1 — 1
Introduction
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EPS 7000 Single and Shared Systems
1.3
General Description
EPS 7000 is a family of compact, high-efficiency uninterruptible power systems. Standard power ratings for single-
module systems range from 300 to 500 kVA, while standard shared systems are rated up to 4000 A. EPS 7000 UPS
are optimized for compatibility with non-linear computer-type loads. Computer-aided UPS diagnostics and modular
construction assures that any required service on the UPS can be identified and completed rapidly. Remote system
monitoring, remote annunciation of UPS performance signals, and telecommunication capabilities allow total control
of the UPS by the user.
The EPS 7000 , SSC, battery, and all auxiliary equipment is listed for safety by Underwriter’s Laboratories, Inc. (UL)
under UL Standard 1778 and under Canadian Standards Association (CSA) standard C22.107.
Major components of the EPS 7000 family include:
◗
◗
◗
◗
◗
◗
UPS module
SSC static switch cabinet
SSC maintenance bypass cabinet
UPS maintenance bypass cabinet
Transformer cabinet (if required)
Battery disconnect
Each of these cabinets is described below. Figure 1-1 shows a single-module UPS. Figure 1-2 shows a shared-
system (SSC) installation. Tables 1-1, 1-2, 1-3 identify single-module 500 kVA ratings.
Figure 1-1: EPS 7000 System, Single-Module Configuration, 1 Optional GCC per Module (not shown)
Figure 1-2: EPS 7000 System, S-S Configuration, 1 Optional GCC per System Located on the SSC (not shown)
page 1 — 2
Introduction
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Installation Manual
1.4
Receiving for Single Modules and Shared Systems
Before accepting the shipment from the freight carrier, inspect the exterior surfaces of all shipping containers or
packaging used, and the equipment, for damage that may have occurred during transit. If the shipping containers
or equipment show evidence of damage, note the damage on the receiving document (bill of lading) prior to signing
for receipt of equipment.
The equipment should be unpacked immediately after receipt, and inspected again to determine if any internal
shipping damage (broken components, disconnected wiring, loose connections, etc.) has occurred. Verify that the
equipment nameplate(s) correspond with the equipment ordered.
Damage claims should be filed directly with the carrier. Replacements for damaged components should be ordered
through MGE Customer Support Services at 1-800-523-0142.
1.4.1 Handling
Carefully follow the handling instructions attached to the shipping materials.
1.4.2 Storage
If the equipment is to be stored prior to installation, it should be stored in a cool, dry, well-ventilated location that is
protected against rain, splashing water, chemical agents, etc. The equipment should be covered with a tarpaulin or
plastic wrapper to protect it against dust, dirt, paint, or other foreign materials.
IMPORTANT:
Batteries should be stored no longer than three (3) months
at 25° C (77° F) or lower prior to recharging. Exceeding the
recommended ambient storage temperature will induce bat-
tery back-up time and may adversely affect battery life.
1.4.3 Prerequisites to Installation
An efficient EPS 7000 installation depends on careful planning and site preparation. Installation of UPS equipment
must be handled by skilled technicians and electricians familiar with the special requirements of high-energy
electrical equipment. The installation must comply with the requirements of the National Electrical Code (NEC,
ANSI/NFPA 70, latest issue) and with local codes and requirements as applicable.
Before installation, the following environmental, mechanical, and electrical prerequisites must be fulfilled.
Carefully review the installation drawings supplied with the system and follow their instructions.
1.4.4 Environmental Considerations
The EPS 7000 is intended for use in an environment where control of temperature and humidity is provided.
The EPS 7000 generates heat and exhaust air through the top portion of its enclosures. Heat loss and air flow data
is provided in the installation drawings.
page 1 — 3
Introduction
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EPS 7000 Single and Shared Systems
1.4.5 Mechanical Considerations
The EPS 7000 can be mounted on a raised floor, or flush-mounted on a concrete floor. All floors must be level. The
conduits are landed on a panel located on left top panel of the module as shown on the installation drawings. On
a raised floor the unit can be equipped with an optional auxiliary cabinet to allow conduits to be run below the floor.
Battery cabinet(s) may be placed adjacent to the UPS module on the right side (when viewed standing in front and
facing the module), or may be installed as stand-alone cabinets. Auxiliary cabinet(s) are placed to the left of the UPS
module.
Floor loading must be considered when installing an EPS 7000 system on a raised floor or on an upper story of a
multiple-story building. Floor loading data is provided on the installation drawings supplied with the equipment.
Consult a structural engineer while planning your EPS 7000 UPS installation.
After installation, the EPS 7000 module requires a minimum of 1 meter (36 inches) front and top clearance for
normal maintenance. Side or rear access is not required.
IMPORTANT:
Side or rear access may be required for installations where
cable restraints are necessary.
1.4.6 Electrical Considerations
Electrical service for the EPS 7000 system should be supplied on its own dedicated branch circuit. Main input
cables, upstream protective devices, and downstream protective devices must be provided and sized per the
National Electrical Code (NEC) requirements, per local codes as applicable, and as appropriate for your load and
distribution requirements. Recommended cable sizes and UPS ratings are provided on the installation drawings.
The EPS 7000 is a separately-derived source.
1.5
UPS Single Module and Shared System Specifications
Specifications provided refer to an EPS 7000 module and any required auxiliary cabinets.
page 1 — 4
Introduction
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Installation Manual
1.5.1 Electrical Ratings
Table 1-1: System Electrical Characteristics
Rating, KVA/KW
300/270
400/360
500/450
300/270
400/360
500/450
Input voltage
480VAC, 3PH,
3W+G, 60hz.
480VAC, 3PH,
3W+G, 60hz.
480VAC, 3PH,
3W+G, 60hz.
600VAC, 3PH,
3W+G, 60hz.
600,VAC,3PH,
3W+G, 60hz.
600VAC, 3PH,
3W+G, 60hz.
Phase Rotation
Input Current
ABC clockwise
ABC clockwise
ABC clockwise
ABC clockwise
ABC clockwise
ABC clockwise
371 amps nominal,
543 amps max.
508 amps nominal, 656 amps nominal, 322 amps nominal, 441 amps nominal, 569 amps nominal,
688 amps max.
840 amps max.
466 amps max.
586 amps max.
711 amps max.
Output Voltage
480VAC, 3PH,
480VAC, 3PH,
480VAC, 3PH,
600VAC, 3PH,
600VAC, 3PH,
600VAC, 3PH,
3or4W+G, 60hz.
3or4W+G, 60hz.
3or4W+G, 60hz. 3or4W+G, 60hz.
3or4W+G, 60hz.
3or4W+G, 60hz.
Output Current
Bypass voltage
361 amps
481 amps
601 amps
289 amps
385 amps
481 amps
480 VAC, 3PH,
3or4W+G, 60hz.
480VAC, 3PH,
3or4W+G, 60hz.
480VAC, 3PH,
3or4W+G, 60hz. 3or4W+G, 60hz.
600VAC, 3PH,
600VAC, 3PH,
3or4W+G, 60hz.
600VAC, 3PH,
3or4W+G, 60hz.
Bypass Current
DC Float Voltage
DC Nominal Voltage
DC Cut-off Voltage
DC Current (max)
Q1 Rating
361 amps
545 VDC
481 amps
545 VDC
601 amps
545 VDC
480 VDC
390 VDC
1195 amps
289 amps
545 VDC
480 VDC
390 VDC
721 amps
385 amps
545 VDC
481 amps
545 VDC
480 VDC
480 VDC
480 VDC
480 VDC
390 VDC
390 VDC
390 VDC
390 VDC
721 amps
962 amps
962 amps
1195 amps
1000AT/1200AF
800AT/1200AF
700AT/1200AF
1000AT/1200AF
800AT/1200AF
1000AT/1200AF
1000AT/1200AF 1000AT/1200AF
1000AT/1200AF
700AT/1200AF
1000AT/1200AF
1000AT/1200AF
700AT/1200AF
1200AT/1200AF
Q4S, Q5N, SW
QF1 Rating
800AT/1200AF
1200AT/1200AF
700AT/1200AF
700AT/1200AF
NOTE:
Information provided is for standard configurations; data may change with optional equipment. Consult
the installation drawings provided with your equipment.
page 1 — 5
Introduction
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EPS 7000 Single and Shared Systems
1.5.2 Output
Power factor:
0.9 lagging
Total harmonic distortion
(THD):
< 2% (linear load)
< 4% (for 100% non-linear load with a crest factor of up to 3.5)
1% for balanced load tbd for 100% unbalanced load
tbd for 100% step load change
Transient regulation:
Transient response:
Overload:
125% of rated load for 10 minutes (750-800 kVA), 10 minutes (555-625 kVA),
150% of rated load for 1 minute
1.5.3 Mechanical
Height:
Depth:
Width:
Weight:
Finish:
82 in/2083 mm
39 in/991 mm
See Table 2-1
See Table 2-1
MGE light gray
1.5.4 Environmental
Recommended environment: 20° to 25° C (68° to 77° F); 50% relative humidity; computer room or other temperature-
and humidity-controlled environment
Operating temperature:
Storage:
0° to 40° C (32° to 86° F) except battery
-20° to 50° C (-4° to 122° F)
Humidity:
up to 90% non-condensing (operating)
Altitude:
sea level to 1,000 meters (sea level to 3,280 feet) without derating; 1,000 to 2,000
meters (3,280 to 6,560 feet): derate operating temperature to a maximum of 28° C
(82° F)
page 1 — 6
Introduction
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Installation Manual
2.0
Single-Module Description
This section is a general description of the EPS 7000 single-module and shared systems, their internal components,
diagrams, and available system options. See Single Module and Shared Systems , Users Manual 86-1340004-00
for operation.
Figure 2-1: Typical Single-Line Diagram, (480 VAC Input/Output Single Module 500 kVA UPS with Battery Disconnect)
MBP
(OPTION)
MAINTENANCE
BYPASS
Q3BP
KK
BYPASS
A5
B5
C5
N
INPUT
Q4S
BYPASS
Q4S
A6 A6
B6 B6
C6 C6
BYPASS
INPUT
N
G
N
G
G
BYPASS
STATIC
SWITCH
NOTE 4
INPUT
CB
Q1
OUTPUT
CB
B4 B13 Q5N
A4 A13
A13
B13
C4
N
A3
B3
C3
G
A3
B3
C3
G
CHARGER
INVERTER
INPUT
OUTPUT
C4 C4
KK
OUTPUT
FUSES
N
G
N
G
OUTPUT
STATIC
SWITCH
G
OPTIONAL INPUT
TRANSFORMER
(REQ'D FOR 600V MODELS)
TRANSFORMER
CABINET
UPS
CABINET
INPUT
FILTER (TYP.)
+
-
G
TO BATT DISC.
QF1
Table 2-1: EPS 7000 Single Module Ratings
WEIGHT (LBS/KG)
UPS
MBP
XFMR
OPT
TOTAL
300/400/500 kVA
60hz
Single Module
480V
600V
6,900/3,130
6,900/3,130
540/245
540/245
7,440/3,375
11,040/5,015
3,600/1,640
page 2 — 1
Description
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EPS 7000 Single and Shared Systems
2.0.1 Single-Module Internal components
Figure 2-2: EPS 7000 Major Internal Components (Single Module 500 kVA UPS)
BLOWERS (4X)
BLOWERS (4X)
BLOWERS (3X)
RAUZ2 PCA (OPT)
RAUZ PCA
IBEZ PCA
OBEZ PCA
BAIZ1 PCA
TREZ PCA
SSSZ PCA
ALBZ PCA
EPOZ PCA
MULTI-SLOT
(OPTION)
INVERTERS (6X)
DC CAPS
MODEM AND PWR
SUPPLY (OPTION)
BYPASS
STATIC
SWITCH
ACOZ PCA
ACUZ PCA
ARUZ PCA
OUTPUT XFMR
(BEHIND PANEL)
RECTIFIER
OUTPUT
STATIC
SWITCH
CARD CAGE
ALEZ PCA
AROZ_7000 PCA
CROZ_7000 PCA
CRIZ_7000 PCA
SRIZ PCA
GTCZ_7000 PCA
GT2Z_7000 PCA (OPT.)
SERIES
FILTER
CHOKES
CONTROL
FUSES
Q1
INPUT CB
INPUT FILTER (3X)
OUTPUT FILTER (4X)
FAN XFMRS
Q4S
BYPASS CB
GUI POWER SUPPLY
OUTPUT FUSES
INPUT FILTER FUSES
INPUT
FUSES
page 2 — 2
Description
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Installation Manual
2.0.2 Single Module Major Internal Components
Input Filter
An input harmonic current filter is standard.
Input Transformers
The single-module is equipped with isolation transformer at the output and an
optional transformer at the input. The transformers provide battery isolation or
voltage step-up or step-down as required for the particular installation.
Rectifier/Battery Charger
Inverter
The rectifier/battery charger converts the AC input voltage from the utility source into
a DC voltage, supplying the inverter and regulating the charge of the battery system.
A capacitor bank filters the DC voltage.
The inverter chops the DC voltage supplied from either the rectifier/battery charger
or the battery system into a three-phase AC voltage. An AC output filter is used to
achieve a computer-grade sinewave output voltage waveform, with a total harmonic
distortion of less than 2% under linear-load conditions.
Static Switches
An output and a bypass static switch is provided to transfer the critical load from ups
output power to bypass input power without interrupting the supply of power to the
load, allowing the load to continue operation while the UPS is being maintained, or
in the event of a UPS fault. The static bypass switch assures that voltages from the
UPS output cannot feed back to the utility input lines.
Bypass Cabinet
The UPS is designed to use either a single bypass circuit breaker (Q4S) Figure 1-
6, or a three-cb maintenance bypass. The three-cb maintenance bypass provides
a direct bypass AC input source to supply the critical load while the UPS is being
serviced.
Inverter Transformer
During normal operation, the inverter transformer provides complete electrical
isolation between the UPS output to the attached load and the utility power source
input as well as the UPS battery source.
page 2 — 3
Description
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EPS 7000 Single and Shared Systems
Figure 2-3: Circuit Breaker locations in Maintenance Bypass Cabinet
page 2 — 4
Description
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Installation Manual
2.0.3 Single Module Options
This section describes options available for the EPS 7000. Some configurations do not support some options. Most
options must be specified at the time of equipment order, and some options can be installed in the field. Contact
your MGE dealer for complete information.
Main Battery Disconnect
The battery disconnect provides isolation of the battery circuit from the UPS and
also provides overload protection for the battery circuit. It is housed in a separate
enclosure and can be floor mounted against a wall.
Battery System
The battery system stores energy for use by the inverter. The stored energy is
utilized in the event that the AC input power from the utility source fails, or falls
outside of acceptable tolerance. The battery system may be a customer-supplied
battery installation.
Remote Alarm Status Panel (RASP)
For single-module systems, a remote alarm status panel (RASP) is available. The RASP allows the following status
indications to be viewed from a remote location:
◗
◗
◗
◗
◗
◗
◗
◗
◗
◗
◗
UPS on line
UPS on battery
UPS on bypass
UPS on maintenance bypass
Low battery shutdown
Charger on
Overload
Charger fault
Inverter fault
Transfer lockout
Summary alarm
Additionally, the RASP contains an audible alarm and two pushbuttons:
◗
◗
UPS test/reset pushbutton
Audio reset pushbutton
Remote Summary Alarm Panel (RSAP)
For single-module systems, a remote summary alarm panel (RSAP) is available. The RSAP allows the following
status indications to be viewed from a remote location:
◗
◗
UPS summary alarm
UPS on battery
Additionally, the RSAP contains an audible alarm and two pushbuttons:
◗
◗
Alarm test/reset pushbutton
Audio reset pushbutton
Active RS-232/RS-485
A communications port is available that allows the UPS module or the SSC to be monitored from a remote terminal
or computer. For detailed information on the communication features, contact your MGE dealer.
page 2 — 5
Description
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EPS 7000 Single and Shared Systems
2.1
Shared System Description
This section describes the shared system in detail, including single line diagrams, rating and component locations.
See Shared Systems, Users Manual 86-134005-00 for operation.
Figure 2-4: Typical Single Line Diagram, (480 VAC Input/Output Multi-Module UPS with Battery Disconnect.)
Table 2-2: EPS 7000 Shared Systems Ratings
WEIGHT (LBS/KG)
300/400/500 kVA
60hz
UPS
MBP
NA
XFMR
OPT
TOTAL
Shared system
480V
600V
6,800/3,090
6,900/3,130
6,800/3,090
10,500/4,770
NA
3,600/1,640
Table 2-3: Model Number, Static Switch Cabinets (SSC)
INPUT
VOLTAGE
(VAC)
OUTPUT
VOLTAGE
(VAC)
INPUT
CB
(Amps)
TOTAL
WIDTH
(mm/in)
TOTAL
WEIGHT
(kg/lb)
HEAT
LOSS
(Btu/hr)
480
600
480
600
4000 Max
4000 Max
1829/72
1829/72
1317/2900
1317/2900
(Negligible)
(Negligible)
page 2 — 6
Description
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Installation Manual
Figure 2-5: Single-Line Diagram, typical EPS 7000 Shared Installation
MAINTENANCE
BYPASS
MAINTENANCE
BYPASS CABINET
(OPTIONAL)
Q3BP
STATIC SWITCH CABINET
STATIC SWITCH
AC INPUT
Q4S
(CUSTOMER
SUPPLIED)
Q2S
Q5N
TO
BYPASS
AC INPUT/
MAINS 2
ATTACHED
LOAD
OUTPUT
CB
Q5N
INPUT
CB
Q1
CHARGER
INVERTER
BYPASS
AC INPUT/
MAINS 1
FROM ADDITIONAL
UPS MODULES
OUTPUT
FUSES
OUTPUT
STATIC
SWITCH
OPTIONAL INPUT
TRANSFORMER
(REQ'D FOR
600V MODELS)
TRANSFORMER
CABINET
UPS
CABINET
INPUT
FILTER (TYP.)
+
-
G
BATTERY
DISCONNECT
QF1
OR
BATTERY
CABINET(S)
OUTPUT
CB
Q5N
INPUT
CB
Q1
CHARGER
INVERTER
OUTPUT
FUSES
OUTPUT
STATIC
OPTIONAL INPUT
TRANSFORMER
(REQ'D FOR
SWITCH
600V MODELS)
TRANSFORMER
CABINET
UPS
CABINET
INPUT
FILTER (TYP.)
+
-
G
BATTERY
DISCONNECT
QF1
OR
BATTERY
CABINET(S)
page 2 — 7
Description
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EPS 7000 Single and Shared Systems
Figure 2-6: EPS 7000 Major Internal Components, Shared System UPS
BLOWERS (4X)
BLOWERS (4X)
BLOWERS (3X)
RAUZ2 PCA (OPT)
RAUZ PCA
IBEZ PCA
OBEZ PCA
BAIZ1 PCA
TREZ PCA
ALBEZ PCA
EPOZ PCA
MULTI SLOT
(OPTION)
INVERTERS (6X)
DC CAPS
MODEM AND PWR
SUPPLY (OPTION)
APOZ PCA
ACPZ PCA
ARUZ PCA
OUTPUT
STATIC
SWITCH
OUTPUT XFMR
(BEHIND PANEL)
RECTIFIER
CARD CAGE
ALEZ PCA
AROZ_7000 PCA
CROZ_7000 PCA
CRIZ_7000 PCA
SRIZ PCA
SERIES
FILTER
CHOKES
GTCZ_7000 PCA
GT2Z_7000 PCA (OPT.)
CONTROL
FUSES
Q1
INPUT FILTER (3X)
INPUT CB/SW
OUTPUT FILTER (4X)
Q5N
OUTPUT CB/SW
FAN XFMRS
GUI POWER SUPPLY
OUTPUT FUSES
INPUT FILTER FUSES
INPUT
FUSES
page 2 — 8
Description
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Installation Manual
2.1.1 Shared System Major Internal Components
Input Filter
An input harmonic current filter is standard.
Input Transformers
The single-module is equipped with isolation XFRMS on both the input and output.
The transformers provide battery isolation or voltage step-up or step-down as
required for the particular installation.
Rectifier/Battery Charger
Inverter
The rectifier/battery charger converts the AC input voltage from the utility source into
a DC voltage, supplying the inverter and regulating the charge of the battery system.
A capacitor bank filters the DC voltage.
The inverter chops the DC voltage supplied from either the rectifier/battery charger
or the battery system into a three-phase AC voltage. An AC output filter is used to
achieve a computer-grade sinewave output voltage waveform, with a total harmonic
distortion of less than 2% under linear-load conditions.
Static Switch
An output static switch is provided to connect the ups output power to the SSC.
Inverter Transformer
During normal operation, the inverter transformer provides complete electrical
isolation between the UPS output to the attached load.
2.1.2 Shared System Options
This section describes options available for the EPS 7000 series 800 UPS. Some configurations do not support some
options. Most options must be specified at the time of equipment order; some options can be installed in the field.
Contact your MGE dealer for complete information.
Maintenance bypass
For the UPS modules, maintenance bypass is provided by the SSC, allowing any or
all attached UPS modules to be taken off-line while the SSC supports the attached
load from its bypass source. As an option, the SSC can be equipped with its own
maintenance bypass, allowing the SSC as well as any/all attached UPS modules to
be serviced while the load is supported by the maintenance bypass AC input source.
Active RS-232/RS-485
Main Battery Disconnect
Battery System
A communications port is available that allows the UPS module or the SSC to be
monitored from a remote terminal or computer. For detailed information on the
communication features, contact your MGE dealer.
The battery disconnect provides isolation of the battery circuit from the UPS and
also provides overload protection for the battery circuit. It is housed in a separate
enclosure and can be floor mounted against a wall.
The battery system stores energy for use by the inverter. The stored energy is
utilized in the event that the AC input power from the utility source fails, or falls
outside of acceptable tolerance.
The battery system may be a customer-supplied battery installation.
page 2 — 9
Description
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EPS 7000 Single and Shared Systems
Remote Alarm Status Panel (RASP)
For single-module systems, a remote alarm status panel (RASP) is available. The RASP allows the following status
indications to be viewed from a remote location:
◗
◗
◗
◗
◗
◗
◗
◗
◗
◗
◗
UPS on line
UPS on battery
UPS on bypass
UPS on maintenance bypass
Low battery shutdown
Charger on
Overload
Charger fault
Inverter fault
Transfer lockout
Summary alarm
Additionally, the RASP contains an audible alarm and two pushbuttons:
◗
◗
UPS test/reset pushbutton
Audio reset pushbutton
Remote Summary Alarm Panel (RSAP)
For single-module systems, a remote summary alarm panel (RSAP) is available. The RSAP allows the following
status indications to be viewed from a remote location:
◗
◗
UPS summary alarm
UPS on battery
Additionally, the RSAP contains an audible alarm and two pushbuttons:
◗
◗
Alarm test/reset pushbutton
Audio reset pushbutton
2.2
SSC Major Internal Components
The static switch cabinet (SSC) provides an electrical path between the output of the UPS modules and the load.
When the UPS modules are off, the SSC provides power to the load from the bypass AC input source (mains 2). Up
to six (6) modules can be connected to the SSC, supporting loads as great as 4000 amps. UPS modules may be
turned off individually for maintenance, provided that the remaining modules can support the load.
The SSC incorporates a static bypass switch. A wrap-around circuit breaker (Q2S) in the SSC switches between the
UPS module output and the bypass AC input source (when the UPS modules are off). Optionally, the SSC can be
provided with its own maintenance bypass cabinet (MBP), allowing the SSC and/or any attached UPS module to be
serviced while the load is supplied via the maintenance bypass AC input source.
page 2 — 10
Description
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Installation Manual
2.2.1 Static Switch Cabinet Specifications
2.2.1.1 Electrical
AC input ratings
Voltage:
480 VAC, +10%, -10%
Frequency:
Phases:
60 Hz, 10%
3 Ø (phase sequence must be A, B, C)
3 or 4 wires plus ground
4,000 Amperes max
Wires:
Current:
AC output ratings
Voltage:
480 VAC, 380/400/415 VAC
60 Hz, 50 Hz
Frequency:
Phases:
3 Ø
Wires:
4 wires plus ground
4,000 Amperes max
0.9 lagging
Current:
Power factor:
2.2.1.2 Mechanical
Height:
1,981 mm/78 in.
Depth:
1,219 mm/48 in.
Width:
1,829 mm/72 in.
Weight:
1,310 kg/2,900 lbs. (SSC) 1,091 kg/2,000 lbs. (MBP)
MGE light gray
Finish:
page 2 — 11
Description
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EPS 7000 Single and Shared Systems
Figure 2-7 EPS 7000 Major Internal Components, Static Switch Cabinet (SSC)
BYPASS
BYPASS
page 2 — 12
Description
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Installation Manual
3.0
Installation For Single Module and Shared Systems
This section describes the installation for EPS 7000 single module and shared systems. Including inter-cabinet
connections, mains1 & 2, AC bypass input/outputs, and the battery. Each paragraph is titled for single module or
shared system descriptions when applicable.
The steps to be followed are:
◗
◗
◗
◗
Familiarization with information provided in the document package located behind the door of the unit.
Placement of the UPS module and applicable battery and auxiliary cabinet(s).
Connection of input power, output power, and inter-cabinet control and power cables.
Start-up of the system.
Installation of UPS equipment must be handled by skilled technicians and electricians familiar with the special
requirements of high-energy electrical equipment. The installation must comply with the requirements of the
National Electrical Code (NEC, ANSI/NFPA 70, latest issue) and with local codes and requirements as applicable.
3.1
UPS Placement for Connections
Move the EPS 7000 module, battery cabinet(s) (if any), and auxiliary cabinet(s) (if any), to their final location, as
described in the Mechanical considerations section. For cabinets installed adjacent to each other, alignment is
critical to properly install the spacers and cabinet interconnects. Refer to the installation drawings for handling,
moving the cabinet, placement, alignment, and mechanical connections.
Remove the packing materials and lift the enclosures to remove the pallets. Refer to the handling instructions and
installation drawings supplied with the equipment for pallet removal procedures.
3.1.1 Noise
Consideration should be given to the specific location of the cabinet to minimize the potential for sound transmis-
sion to surrounding structures and sound reflection. It is suggested that the following installation methods be
included.
1. If possible, mount the cabinets away from corners of walls or ceilings. For installations which must be near a
corner, use sound absorbing materials on the walls and ceilings, if necessary, to eliminate reflection.
2. Provide a solid foundation for mounting the cabinets.
3. Provide flexible conduit to make the connections to the I/O cabinet.
4. Locate the cabinets as far as practically possible from areas where high sound levels are undesirable.
page 3 — 1
Description
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EPS 7000 Single and Shared Systems
3.2
Connections
Install conduits and cables starting from the rear of the cabinet working your way to the front. Preferred conduit
layout is shown on the installation drawing.
3.2.1 Single Module Connections
Electrical connections and cabinet interconnection will vary depending upon the configuration of your EPS 7000
system. Refer to the installation drawings supplied with your equipment. General information follows.
Before making any electrical connections, verify that the UPS circuit breakers Q1, Q4S, and optional Q3BP and
Q5N are in the OFF (open) position. The battery disconnect circuit breaker QF1 should be in the OFF (open)
position (if there is more than one, all should be in the OFF position). Optional distribution circuit breakers should
be in the OFF (open) position. Customer-supplied downstream protective devices and distribution circuits should be
OFF (open).
The lugs used to secure the cables should be torqued as per the recommendation listed in “Cable preparation for
field wiring,” MGE document 9-00038-00.
3.2.2 Shared Systems Connections
Electrical connections and cabinet interconnection will vary depending upon the configuration of your EPS 7000
shared UPS system. Refer to the installation drawings supplied with your equipment. General information follows.
Before making any electrical connection, verify that the SSCs circuit breakers and switches Q5N, Q3BP, SW1, and
SW2 are in the OFF (open) position. For each UPS module, verify that the main AC input circuit breaker Q1, the
UPS module isolation circuit breaker Q5N, and all the battery disconnect circuit breakers QF1 are in the OFF (open)
position. Customer-supplied upstream (Q4S) and downstream protective devices and distribution circuits should be
OFF (open).
The lugs used to secure the cables should be torqued as per the recommendation listed in “Cable preparation for
field wiring,” MGE document 9-00038-00.
page 3 — 2
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Installation Manual
3.2.3 Installations with More Than 50,000 Amps Available Fault Current.
Where available fault current exceeds 50,000 amps, follow recommended cable restraints as shown in
Figure 3-1.
Figure 3-1: Cable Restraint Configuration for Fault Currents Exceeding 50,000 Amps. (UL891)
To Conduit End
B
A
6 inches
(152m)
A
6 inches
(152m)
POWER TERMINALS
CAUTION: HAZARD OF CONDUCTOR MOVEMENT UNDER SHORT-CIRCUIT CONDITIONS.
!
available
Restrain conductors in installations where afault current exceeds 50kva.
Failure to observe these precautions can result in conductors pulling out
of the lugs or damage to this equipment.
Wrap line cables together and secure cables using:
Nominal 3/8-inch (9.5m) Nylon rope or rope having a minimum
tensile strength of 2000 Lbs (8896 N) at 6 inches (152m) and
12 inches (305mm) from the terminals with five wraps, and
every additional 6 inches with five wraps or every 1 inch (25.4m)
with one wrap.
A
B
IMPORTANT: Hazard of conductor movement under short-circuit conditions.
Restrain customer bypass conductors where available fault
currents exceeds 50,000 amps.
page 3 — 3
Installation
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EPS 7000 Single and Shared Systems
3.3
Main AC Input, (Mains 1) Connections
The connections to be made are the three phase and ground cables from the utility AC power source to the UPS
module. Complete wiring instructions for your installation are provided on the installation drawings supplied with the
equipment.
3.3.1 Single Module Bypass AC Input (Mains 2) Connections
The connections to be made are the three phase, ground, and optional neutral cables from the bypass AC input
(mains 2) power source to the Q4S or MBP cabinet.
Where a single AC input source is used to supply both main AC input (mains 1) and bypass AC input
(mains 2) connections, the bypass AC input is derived from the main AC input by a set of jumpers. These
jumpers are installed at the factory.
3.3.2 Shared System Bypass AC Input (Mains 2) Connections
The bypass AC input source is connected to the SSC. The connections to be made are the three phases, optional
neutral, and ground connections. Termination of these connections within the SSC are marked on the installation
drawings supplied with the equipment.
If the maintenance bypass option is included, the maintenance bypass AC input source is connected to the MBP.
The connections to be made are the three phases, optional neutral, and ground connections. Termination of these
connections within the MBP are marked on the installation drawings supplied with the equipment.
Upstream Bypass circuit breaker must be provided with 24vdc shunt trip and aux contact and connect to the SSC
terminal block provided for.
Figure 3-2: Shared System Busbars, Circuit Breakers, and Conduit Landing Panel, SSC
(OPTIONAL)
STATIC SWITCH CABINET
MAINTENANCE BYPASS CABINET
MAINTENANCE BYPASS
CONNECTIONS
BYPASS
CONNECTIONS
LOAD BUS
(TO ATTACHED LOAD,
IF MBP PRESENT)
LOAD BUS
(TO ATTACHED LOAD,
IF NO MBP)
UPS BUS
( FROM UPS MODULES )
BUSBAR
page 3 — 4
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Installation Manual
3.3.3 Battery Connections
The connections to be made are the positive (+), negative (–), and enclosure ground connections between the
battery cabinet and the UPS module. Additionally, control connections between the battery temperature sensor and
the UPS module must be installed. Refer to the installation drawings supplied with the UPS, the battery cabinet, and
the battery temperature sensor.
3.3.4 Power Connections, Inter-Cabinet
The connections to be made vary depending on your system configuration. Typically, EPS 7000 systems
are designed to make interconnection easy to complete and verify; however, always follow the installa-
tion drawings provided with the system.
Most inter-cabinet cables and hardware are provided by MGE; the customer is responsible for installing these
cables. Cable ends are labeled to match the termination points. Some cabling must be supplied and installed by
the customer. The installation drawings supplied with the system give complete details.
3.4
AC Output Connections for Single Module and Shared Systems
3.4.1 Single Module
The connections to be made are the three phases, ground and optional neutral cables. In units with MBP, the output
connections are made at the MBP cabinet.
The customer is responsible for supplying upstream protective devices and downstream distribution circuits and
protective devices as appropriate to the installation and distribution requirements; cable sizing data is provided on
the installation drawings.
3.4.2 Shared Systems
The connections to be made are the three phases, ground, and optional neutral cables between the SSC output
and the load to be supplied. Cables may be routed through the top or bottom of the SSC and optional MBP enclo-
sures.
The customer is responsible for supplying downstream distribution circuits and protective devices as appropriate to
the installation and distribution requirements; cable sizing data is provided on the installation drawings.
3.4.3 Customer Control Connections
Control, communication, and remote annunciation connections are made at the auxiliary contacts at the circuit
boards located in the top portion of the UPS module. Printed circuit assemblies IBEZ and OBEZ provide a dry
contact interface. Printed circuit assembly RAUZ provides telecommunication capability. Refer to the UPS installa-
tion drawings for contact information. For detailed information on the communication features, contact your MGE
dealer.
3.5
Control Connection, Inter-Cabinet
3.5.1 Shared Systems Connections
Three sets of control cabling must be connected between the UPS modules and the SSC. The cables and hardware
are supplied by MGE. Requirements vary according to the system configuration; general information follows.
The display connections are daisy-chained from the RAUZ PCA in the SSC to the RAUZ PCA in each UPS module.
Control signals for synchronization, transfer, and emergency power off (EPO) commands are connected between
the UPS modules and the SSC. The control signals form a star connection from the ACPZ PCA in the SSC to the
ACPZ PCA in each UPS module.
page 3 — 5
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EPS 7000 Single and Shared Systems
Current sharing control signals allow load sharing by the UPS modules. These cables are in a loop-type configura-
tion, from the APOZ PCA in the first UPS module, continuing to the APOZ PCA in the last UPS module, then back
to the APOZ PCA in the first UPS module.
Ribbon and control connectors are to be plugged into corresponding receptacles located in the UPS cabinet. Verify
that all connectors are locked in properly.
3.6 Finishing the Installation
Once all connections have been completed, install the kick plates at the base of all enclosures, as appropriate to
your installation. Side plates must be installed first, then back and front plates. For installations flush-mounted
against back or side walls, those kick plates can be left off.
3.7
Start-up
Start-up presents the procedure to be used for preparation of power-up of the EPS 7000. Use this section in
conjunction with the EPS 7000 User’s Manual (MGE part number S-M, 86-134004-00, which details the start-up
procedures, operation, controls, and indicators utilized during start-up.
3.7.1 Checks Before Start-up
Before starting the EPS 7000, read thoroughly the EPS 7000 Users Manual (MGE part number 86-134005-00-00/
86-134004-00). Be certain that you fully understand the operation of the indicators, controls, and operational
sequences.
Before starting the EPS 7000, make certain that these conditions exist (as applicable to your installation):
◗
◗
All power and control wires have been properly connected and securely tightened.
The upstream and downstream protective devices are not tripped, and have been sized properly for the
UPS inrush and load requirements.
◗
◗
The input voltage is the same as indicated on the UPS nameplate, located inside the right door of the EPS
7000 module.
The air filters located inside each EPS 7000 module front door are properly installed and free of dust, dirt,
and debris. Make certain that no objects block the air intake around the front bottom of the enclosures, and
that the air exhaust at the top rear of the enclosures is free of obstructions.
◗
◗
◗
◗
◗
The UPS module input isolation circuit breaker Q1 is in the OFF (open) position.
The bypass circuit breaker Q4S is in the OFF (open) position.
The optional maintenance bypass circuit breaker Q3BP (if present) is in the OFF (open) position.
The optional UPS isolation circuit breaker Q5N (if present) is in the OFF (open) position.
The battery disconnect circuit breaker QF1 is in the OFF (open) position.
page 3 — 6
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Installation Manual
3.7.2 Checks After Start-up
After initial start-up of the system, normal operation should be tested. At the minimum, the following tests should be
performed (refer to the EPS 7000 Users Manual for procedures), as applicable to your installation:
◗
◗
◗
◗
◗
Emergency power off (EPO) test.
Remote emergency power off (REPO) test (if applicable).
Inverter start and stop.
Battery transfer test.
Maintenance bypass procedure.
3.8
Shutdown
Shutdown procedures in this section apply to the EPS 7000 cabinet under normal, emergency, overload, and mainte-
nance conditions.
page 3 — 7
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EPS 7000 Single and Shared Systems
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page 3 — 8
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Installation Manual
Maintenance
4.0
4.1
Scope
This section describes maintenance of the EPS 7000, including safety instructions, preventive maintenance, and
information about replacement parts.
Safety Instructions
WARNING:
ATTENTION
DC input power to the inverter is normally from a battery
bank with a very high short-circuit capacity. Accidental
welding and severe burns can be caused by mistakes while
connecting or disconnecting these conductors.
L'entrée DC de l'onduleur est normalement alimentée par une
batterie avee un courant de court-circuit élevé. Une erreur
lors de la connexion ou deconnexion de ces conducteurs
peut causer des soudures accidentelles et des brûlures
sérieuses.
WARNUNG!
Gleichstrom zum Wechselrichter kommt gewoehnlich von der
Batteriebank mit einer sehr hohen Kurzschluss
Leistungsfaehigkeit. Unbeabsichtigtes Schweissen und
schwere Verbrennungen koennen die Folgevon fehlerhafter
Verbindung und Trennung sein.
4.2
IMPORTANT SAFETY INSTRUCTIONS FOR SERVICING BATTERIES
A. Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the
required precautions. Keep unauthorized personnel away from batteries.
B. When replacing batteries, use the same model and manufacturer of batteries.
C. CAUTION — Do not dispose of battery or batteries in a fire. The battery may explode.
D. CAUTION — Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and
eyes. It may be toxic.
E. CAUTION — A battery can present a risk of electrical shock and high short-circuit current. The following precau-
tions should be observed when working with batteries:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Wear rubber gloves and boots.
4. Do not lay tools or metal parts on top of batteries.
5. Disconnect charging source prior to connecting or disconnecting battery terminals.
6. Determine if the battery is inadvertently grounded. If inadvertently grounded, remove the source of ground.
Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock will
be reduced if such grounds are removed during installation and maintenance.
page 4 —1
Maintenance
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EPS 7000 Single and Shared Systems
4.3
Preventive Maintenance
The following preventive maintenance routines should be considered the minimum requirements; your installation
and site may require additional preventive maintenance to assure optimal performance from your installed EPS
7000 and associated equipment. These routines should be performed twice a year (more often if required). We
strongly recommend contracting MGE Customer Support Services for preventive and remedial maintenance.
The technician or electrician performing preventive maintenance on the UPS must thoroughly read this manual, and
reference the EPS 7000 Single Module and Shared Systems Users Manuals (MGE part numbers 86-134004-00 and
86-134005-00), and be familiar with the indicators, controls, and operation of the UPS.
a. Isolate and de-energize all EPS 7000 equipment for all maintenance operations.
b. Ensure that all equipment is clean and free of loose dust, dirt, and debris. The exterior of the enclosures
may be cleaned with a mild solution of soap and water, lightly applied with a lint-free cloth.
c. Inspect the air intake and exhaust plates and clean as required. Verify that air flows freely through the
equipment. Clean the air intake and exhaust plates, and the enclosure interior, with a vacuum cleaner.
d. The EPS 7000 module is equipped with air filters that should be changed at regular intervals. Inspect the
filters regularly to determine how long the filters will last in your installation.
e. Initiate the start-up procedure, as described in the User’s manual.
f. Test the main operating sequences as applicable to your equipment configuration and installation.
4.4
Replacement Parts
There are no user replaceable parts inside the EPS 7000.
Three levels of replacement parts are available for the EPS 7000 UPS. The three levels are designated A, B, and
C. The level that you should keep on hand for your installation will vary depending on the type of maintenance
planned on site, and the configuration of your UPS system. Having the replacement parts on hand will prevent any
unacceptable delays (due to time involved obtaining spare parts) during critical periods, such as system start-up.
Any items used during start-up will be replaced by MGE at no charge. Contact MGE Customer Support Services for
specific recommendations. A description of each level is provided below:
Level
A
Description
This level of replacement parts consists of consumable items, specifically fuses and air filters. It
is recommended to have these items on hand during installation of the UPS systems, including
initial start-up.
B
C
This level of replacement parts is recommended when the user can tolerate short-duration UPS
down-time to obtain replacement parts in the event of a major UPS failure. This level of replace-
ment parts consists of consumable items, specifically fuses, air filters, an inverter leg, and the
most critical circuit board assemblies.
This level of replacement parts is recommended when the user can tolerate only a minimum of
down-time in the event of a major UPS failure. This level of replacement parts consists of consum-
able items, specifically fuses, air filters, an inverter leg, and a complete set of circuit board
assemblies.
page 4 —2
Maintenance
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Installation Manual
Glossary
Symbols
Definition / Meaning
@
/
At.
And/or.
+/-
PLUS or Minus.
≤
Equal to or less than.
Number.
#
°C
Degree Celsius.
°F
Degree Fahrenheit.
Ø
Phase angle.
Ω
Ohm; unit of resistance.
®
Trade Mark.
2nd
Second.
A, B, C
Normal sequence of phases (clockwise) in three-phase power.
Alternating current, also implies root-mean-square (rms).
AC or ac
Alphanumeric display
The LCD display above the hidden panel (behind the drop-down cover) on the UPS module
and the SSC.
Ambient Temp.
Ambient noise
Ambient noise
Attached load
Audible alarm
Temperature of surrounding air.
Acoustical noise of surrounding environment.
The noise level of the environment.
The load attached to the UPS output, such as a computer system or manufacturing system.
A buzzer, located behind the front panel on the UPS module and the SSC, that sounds when
alarm conditions occur.
ANSI
American National Standard Institute.
American Wire Gauge.
Battery.
AWG
B or BAT. or BATT.
Breaker
Electrical circuit interrupter.
BTU or Btu
British thermal unit. Defined as the amount of heat required to raise the temperature
of one pound of water by 1°F.
BYPASS
See “Static Transfer switch”.
BYPASS mode
Carrier
See “off-line mode”.
The company or individual responsible for delivering goods from one location to another.
page g — 1
Glossary
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EPS 7000 Single and Shared Systems
C
Common.
CB
Circuit breaker.
cm
Centimeter.
dB
Decibels.
DC
Direct current.
Conduit
A flexible or rigid tube enclosing electrical conductors.
C.S.S.
Customer Support Service.
Current rating
dBA
The maximum current that a conductor or equipment can carry reliably without damage.
Decibel Adjusted.
dBrnC
Decibel above reference noise.
DC or dc
Digital Meter
Earth ground
Electrician
Direct current, or voltage.
The LCD display on the front panel of inverter system.
A ground circuit that has contact with the earth.
Refers to an installation electrician qualified to install heavy-duty electrical components in
accordance with local codes and regulations. Not necessarily qualified to maintain or repair
electrical or electronic equipment.
FET
Field effect transistor.
Frequency.
Freq.
Frequency slew rate
The change in frequency per unit of time. Given in term of Hz per second (Hz/sec.).
Ground (safety).
GND
Hz
Hertz, frequency measurement unit, 1Hz is one cycle per second.
Input branch
circuit
The input circuit from the building power panel to the equipment.
An electrical circuit that generates an AC sinewave output from a DC input.
See “on-line” mode.
Inverter
Inverter mode
I
Current.
IEC
International Electrotechnical Commission.
IEEE
Institute of Electrical and Electronic Engineers.
The input circuit from the building power panel to the equipment.
An electrical circuit that generates an AC voltage source from a DC voltage source.
Input branch circuit
Inverter
IGBT
kVA
Insulated gate bipolar transistors
KiloVolt-Ampere; is equal to 1000 Volt-Ampere.
page g — 2
Glossary
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L
Line.
LCD
Liquid-Crystal Display unit.
Light Emitting Diode.
LED
Load protected
The attached load is being supplied by the UPS module inverter output, and the battery
is available in the event that incoming (utility) power is lost.
Load not protected
Low battery
The attached load is being supplied, but the battery system is unavailable.
Shutdown
The battery has reached the lowest permitted operating voltage, and the inverter has shut
down (disconnecting the load) to protect the battery from damage due to further discharge.
Mains or Mains 1
Mains 2
mA
Main AC input source.
Bypass AC input source.
Milliampere.
MAX.
Maximum.
MCM
Thousand circular mil; standard wire sizes for multiple stranded conductors over 4/0 AWG in
diameter. M is from Roman numerical system indicating 1000.
Module
Refers to individual power inverter module.
N
Neutral.
NC
Normally close.
NO
Normally open.
NEC
National Electrical Code.
NFPA
National Fire Protection Association.
NO. or No.
On-battery operation
Part number.
The attached load is being supplied by the stored energy in the battery system.
On-line mode
Off-line mode
Inverter output power is the primary energy source to load.
Inverter output is off, and the load connected at the inverter output receives power from utility
line via a static transfer switch or maintenance bypass relay.
OSHA
Occupational Safety and Health Agency.
PCB
PCB
PWM
Q1
Printed circuit assembly.
Printed circuit board.
Pulse Width Modulation.
UPS input isolation circuit breaker.
Q3BP
Optional maintenance bypass circuit breaker (in single-module UPS system); optional mainte-
nance bypass circuit breaker in MBC cabinet (in shared systems).
page g — 3
Glossary
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EPS 7000 Single and Shared Systems
Q4S
Q5N
QF1
Control or bypass circuit breaker (in single-module UPS systems); user-supplied bypass AC
input circuit breaker supplying the SSC (in shared systems).
Optional UPS isolation circuit breaker (in single-module UPS systems); UPS module isolation
circuit breaker (in shared systems); optional SSC isolation circuit breaker (in MBC).
Battery disconnect circuit breaker.
Remote
emergency power off
A switch used for shutting down electrical equipment from a location away from the equipment.
Silicon controlled rectifier.
SCR
Security bypass (key)
Pushbutton on the hidden panel (UPS modules and SSC) allowing forced transfers and other
commands to be issued. The security key pushbutton must be held down while the desired
function is executed.
Shipping damage
SPDT
Any damage done to an article while it is in transit.
Single Pole Double Throw.
SSC
Static switch cabinet (in shared systems).
Static Transfer
An solid state switching mechanism electronically controlled to pass AC power directly from the
utility to an output load.
Technician
Refers to an electronic technician qualified to maintain and repair electronic equipment. Not
necessarily qualified to install electrical wiring.
Test connector
DB-9 type connector on the LCD panel allowing MGE UPS SYSTEMS Customer Support
Service technician to access programmable and diagnostic features of the system.
U
Voltage.
UF
Under frequency.
UL
Underwriters Laboratories, Inc.
UPS
UV
Uninterruptible power system.
Under voltage.
VAC
Vb
Volts of alternating current.
Battery voltage (in volts DC).
VDC
Via
Volts of direct current.
By way of.
VPC
XFMR
Volts per cell, the measure of the electrical potential of a storage cell, such as a battery.
Transformer.
V
Volts
VA
Volt amperes
page g — 4
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VA
Volt-amps, unit for apparent power measurement, equal V x I.
Voltage of AC type.
VAC or Vac
VDC or Vdc
Voltage of DC type.
ve
Battery voltage.
By way of.
Via
page g — 5
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EPS 7000 Single and Shared Systems
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