Mitsubishi Electric 9900D Series User manual

UNINTERRUPTIBLE POWER SUPPLY SYSTEM
MODEL
9900D SERIES
OWNER’S / TECHNICAL MANUAL
(Inclusive Parallel Operation System Application)
UNINTERRUPTED Peace of Mind®

Preface
Revision 1 6/22/2020
U-ENM00055

MITSUBISHI ELECTRIC 9900D SERIES UPS
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
i
TABLE OF CONTENTS
LIST OF TABLES ............................................................................................................... ii
LIST OF FIGURES ............................................................................................................. iii
HOW TO USE THIS MANUAL ........................................................................................... iv
1.0 INTRODUCTION ....................................................................................................... 1-1
1.1SAFETY PRECAUTION ............................................................................................ 1-2
1.2GENERAL .................................................................................................................. 1-5
1.3DEFINITIONS ............................................................................................................ 1-6
1.4OPERATION OVERVIEW ......................................................................................... 1-7
1.5SPECIFICATIONS ..................................................................................................... 1-13
2.0 OPERATION CONTROLS AND INDICATORS ........................................................ 2-1
2.1 LED DISPLAY ............................................................................................................ 2-2
2.2 EPO BUTTON ............................................................................................................ 2-2
2.3 LIQUID CRYSTAL DISPLAY ..................................................................................... 2-2
2.4 EXTERNAL SIGNAL TERMINAL BLOCK ................................................................. 2-8
2.5EXTERNAL COMMUNICATION CONNECTOR ....................................................... 2-15
3.0 INSTALLATION AND STORAGE............................................................................... 3-1
3.1 STORAGE AND HANDLING ..................................................................................... 3-1
3.2 INSTALLATION PROCEDURE ................................................................................. 3-2
3.3 PROCEDURE FOR CABLE CONNECTIONS .......................................................... 3-6
3.4 CONNECTION OF BATTERY UVR SIGNAL ............................................................ 3-15
4.0 OPERATING PROCEDURES ................................................................................... 4-1
5.0 RESPONSE TO UPS FAILURE ................................................................................ 5-1
6.0 PARTS REPLACEMENT .......................................................................................... 6-1
7.0 FAULT CODES ......................................................................................................... 7-1
8.0 WARRANTY INFORMATION ................................................................................... 8-1
9.0 MAINTENANCE CONTRACTS .................................................................................. 9-1
9.1 SERVICE OFFERINGS ............................................................................................. 9-1
9.2 PACKAGES ............................................................................................................... 9-1

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LIST OF TABLES
Table 1.1 UPS Installation Environment ...................................................................... 1-4
Table 1.2 Rating of Bypass Input Circuit Breaker ...................................................... 1-5
Table 1.3 Power Specifications ................................................................................... 1-13
Table 1.4 UPS Cabinet Information ............................................................................. 1-13
Table 1.5 Detail of Specifications ................................................................................ 1-14
Table 1.6 Rating of Contactors, Breakers and Fuses ................................................. 1-15
Table 2.1 Selectable Items for Output Contacts.......................................................... 2-11
Table 2.2 Selectable Items for Input Contacts............................................................. 2-14
Table 3.1 List of UPS Weights..................................................................................... 3-4
Table 3.2 Maximum Permitted Fault Current............................................................... 3-5
Table 3.3 Recommended Cable Sizes ........................................................................ 3-8
Table 3.4 Recommended Hardware............................................................................ 3-8
Table 3.5 Crimp Type Compression Lug..................................................................... 3-9
Table 7.1 Bypass Module Fault Code List................................................................... 7-2
Table 7.2 UPS Module Fault Code List ....................................................................... 7-7
Table 9.1 Typical Offerings .......................................................................................... 9-1

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LIST OF FIGURES
Figure 1.1 Single Line Diagram-
Normal Operation: Load powered by UPS inverter.................................. 1-7
Figure 1.2 Single Line Diagram-
Bypass Operation: Load Fed through static bypass line.......................... 1-8
Figure 1.3 Single Line Diagram-Battery Operation.................................................... 1-9
Figure 1.4 UPS Parts Location .................................................................................. 1-11
Figure 2.1 Operation/Display Panel ........................................................................... 2-1
Figure 2.2 Main Screen.............................................................................................. 2-3
Figure 2.3(a) Start/Stop Operation ................................................................................. 2-4
Figure 2.3(b) Start Operation.......................................................................................... 2-4
Figure 2.3(c) Stop Operation.......................................................................................... 2-4
Figure 2.4(a) Input Values .............................................................................................. 2-4
Figure 2.4(b) Output Values ........................................................................................... 2-4
Figure 2.5 Remote/Local Operation or Date & Time Adjustment Select................... 2-5
Figure 2.6(a) Log Menu .................................................................................................. 2-5
Figure 2.6(b) Event Log.................................................................................................. 2-6
Figure 2.6(c) Battery Log................................................................................................ 2-6
Figure 2.7 Main Screen (Battery Operation).............................................................. 2-6
Figure 2.8 Main Screen (Fault Indication).................................................................. 2-7
Figure 2.9 Message Screen....................................................................................... 2-7
Figure 2.10(a) External Signal Terminal Block TN21-25 (NEC Class2) ............................. 2-8
Figure 2.10(b) External Signal Terminal Block TN11-14 (NEC Class2) ............................. 2-9
Figure 2.11 Control Wiring for External Contacts ........................................................ 2-10
Figure 2.12 Remote "Start" Contact Connections ....................................................... 2-12
Figure 2.13 External Communication Connector......................................................... 2-15
Figure 3.1 Forklift Lifting Side ................................................................................... 3-1
Figure 3.2 Side that cannot be Lifted ....................................................................... 3-1
Figure 3.3 UPS Center of Gravity Markers .............................................................. 3-2
Figure 3.4 Acceptable and Unacceptable UPS Alignment ...................................... 3-3
Figure 3.5 Shim Contact Around Base Channel Mounting Holes ............................ 3-4
Figure 3.6 UPS Terminal Designation ...................................................................... 3-9
Figure 3.7 Diagram of Input/Output Bus Bars and Terminal Blocks ........................ 3-10
Figure 3.8 Diagram of Power Wire and Control Wire Interconnection between
UPS and Battery ..................................................................................... 3-11
Figure 3.9 Diagram of power wire connections
(Parallel Operation system connection) ................................................... 3-12
Figure 3.10(a) Diagram of Power Wire & Control Wire Connect
(Parallel Operation system connection 2x to 8x) .................................... 3-13
Figure 3.10(b) Outline Drawing of IFAU-16 and
the Parallel System Operation Connection ............................................. 3-14
Figure 3.11 UVR Terminal Block ................................................................................ 3-15
Figure 3.12 Diagram of UVR and UPS Connections ................................................. 3-15

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HOW TO USE THIS MANUAL
This manual is designed for ease of use, giving the user easy and quick reference to information.
This manual uses notice icons to draw attention to the user important information regarding the
safe operation and installation of the UPS. The notice icons used in this manual are explained
below, and should be taken into account and adhered to whenever they appear in the text of this
manual.
Warning: A warning symbol shows potentially hazardous situations or conditions
that can result in personal injury or death, if not avoided.
Caution: A caution symbol shows potentially hazardous situations or conditions
which can result in personal injury or equipment damage, if not avoided.
Note: A Note symbol shows the information the user or the service personnel
should observe during UPS operation or service work.
Prohibit:A prohibit symbol shows the act the user or the service personnel should
NEVER perform during the UPS installation, operation or service work.
DEFINITIONS:
Shall – Imperative command that must be followed by the user. Failure to adhere to “shall”
commands may void warranty.
Should – Command highly recommended by Mitsubishi for best UPS operation and performance
but not required by user to maintain warranty.
WARNING
CAUTION
!
NOTE
PROHIBIT

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!
NOTE
FAILURE TO FOLLOW MANUAL
INSTRUCTIONS VOIDS WARRENTY
AND MAY AFFECT OPERATION

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1.0 INTRODUCTION
The Mitsubishi Uninterruptible Power Supply System (UPS) is designed to provide many years of
reliable protection from power failure, brown-outs, line noise, and voltage transients. To ensure
optimum performance of the equipment, follow the manufacturer's instructions. This manual
contains descriptions required to operate the UPS. Please read this manual carefully and retain it
for future reference.
This manual contains important instructions for the 9900D SERIES Uninterruptible Power Supply
System that should be followed during installation and maintenance of the UPS and batteries.
Lethal voltages exist within the equipment during operation. Observe all warning
and cautions in this manual. Failure to comply may result in serious injury or death.
Obtain qualified service for this equipment as instructed.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING 1
WARNING
CAUTION

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1.1 SAFETY PRECAUTIONS
In order to maintain safety and perform start-up and maintenance of the UPS system
successfully, certified service personnel familiar with the operation of this equipment must be
involved. The following safety practices should always be followed.
PRECAUTIONS DURING INSTALLATION
CAUTION
•Do not block the ventilation ports. The ventilation ports should be arranged so that walls or
ceilings do not block ventilation. (Maintenance spaces described in the catalogue or external
drawings should be followed.)
If a ventilation port is blocked, the internal temperature of the UPS will rise, and consequently, a
fire may be caused due to liquid leakage from batteries, short-circuits, or parts deterioration.
PRECAUTIONS FOR WIRING
CAUTION
•
Ask professional agents for wiring work. Inappropriate wiring work may cause electric shocks,
injuries, or fire.
PRECAUTIONS TO PROFESSIONAL AGENTS
CAUTION
•
Use wiring conduit, pits or racks for input/output wiring. Inadvertent wiring may cause injuries.
•
Use terminals for connection to the input/output terminals. Inadvertent connection may cause
electric shocks.
•
Do not drop dust or any other thing from the fan hole.
PRECAUTIONS FOR UPS OR UPS PARTS DISPOSAL
CAUTION
•
Since the UPS contain special industrial waste, such as capacitors, insulators or batteries, they
cannot be disposed of like other general waste. Please check the disposal guideline of your
district, contact the specialized contractor for disposal.
WARNING 2
WARNING

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PRECAUTIONS REGARDING BATTERIES
Before operating the system, carefully read the battery and battery cabinet operating manuals.
CAUTION
•
Follow the directions below when using the batteries, otherwise liquid leakage, heat evolution,
and explosions may be caused.
a. Do not solder the batteries directly.
b. Do not charge the battery with its negative and positive terminals reversed.
c. Do not use different types or suppliers of batteries, or old and new batteries together.
d. Do not remove or damage the armoring tube of the battery.
e. Do not render a large impact or throw the battery.
f. Use wet cloths for cleaning the battery. Do not use organic solvents such as gasoline and
thinner, or oil. Do not wipe the battery with cloths that contain organic solvents or oil. Keep
the battery away from flexible vinyl materials.
g. Since the electric energy remains i
n the used batteries, treat them carefully to prevent
sparks and short circuits.
APPLICATION
CAUTION
If the UPS System is to be applied to support equipment that could affect human safety,
the following steps must be adhered to:
1. Consult with Mitsubishi Electric Power Products Inc. UPS Division.
2. Special consideration of the overall back up power system configuration is required so that
the Mitsubishi UPS System is not the sole support required for operation, maintenance and
management of power availability. Other available power sources; for example utility,
emergency power generation or other systems shall also support power availability.
Definition of equipment that could affect human safety:
Life Support Systems (is a system whose failure to perform can be expected to result in
bodily injury or death.)
Essential Public Systems (is a system whose failure to perform can be expected to
result in bodily injury or death and/or property damage.)

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The UPS is to be installed in a controlled environment.
Improper storage and installation environment may deteriorate insulation,
shorten component life and cause malfunctions.
Keep the installation environment per standard described as follows:
Table 1.1 UPS Installation Environment
No. Item Environment standard
1 Installation
Location
Indoors, without vibrations or impact
2 Ambient
temperature
Minimum temperature: 32°F(0°C), Maximum temperature: 104°F(40°C) The
average temperature over any 24-hour period must be in the range 41°F (5°C)
to 95°F(35°C).
3 Relative humidity The relative humidity must be held between 5 and 95%. There must be no
condensation due to temperature changes.
4 Altitude This equipment must not be applied at altitude that exceeds 1980m (6500ft)
above sea level.
5 Dust Dust in the room where the UPS is installed must not exceed normal
atmospheric dust levels. In particular, that dust should not include iron particles,
oils or fats, or organic materials such as silicone.
6 Inflammable gas
following
IEC654-4
Part 4
There should be no inflammable/explosive gas.
Sea salts 0
Hydrogen sulfide (H2S) No more than 0.003 PPM
Sulfurous acid gas (SO2) No more than 0.01 PPM
Chlorine gas (Cl2) No more than 0.002 PPM
Wet Chlorine (Cl2) relative humidity >50% No more than 0.0005 PPM
Hydrogen chloride No more than 0.0066 PPM
Hydrogen fluoride (HF) No more than 0.001 PPM
Ammonia gas (NH3) No more than 1 PPM
Nitrous oxides (NOx) No more than 0.05 PPM
Ozone (O3) or other oxidants No more than 0.002 PPM
WARNING 3
WARNING

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This UPS does not include a Bypass input circuit breaker (MCCB) to protect
bypass circuit. The Bypass input circuit breaker (MCCB) is to be field supplied
and installed. Recommended Breaker (MCCB)'s Specifications are as follows:
Table 1.2Rating of Bypass Input Circuit Breaker
Capacity (kVA) Bypass Voltage (Vac) Bypass Rating (Aac) Breaker (A)
1200 480 1443 1600
1250 480 1504 1600
1500 480 1804 2000
1600 480 1925 2000
2000 480 2406 2500
AC input and AC output overcurrent protection and disconnect devices shall be field
supplied and installed. The DC circuit breaker (MCCB) shall be field supplied and installed.
The overcurrent protection device should be installed in the Battery cabinet and rated as
indicated in Table 1.6.
1.2GENERAL
The Mitsubishi 9900D SERIES UPS is designed to provide continuous and clean electrical power to
a critical load. Additionally the UPS monitors power conditions affecting the load. In the event of an
input power failure, the UPS will supply power to the critical load for the specified battery time.
If the input power is not restored promptly, backup power from the UPS battery permits the orderly
shutdown of equipment supported by the UPS. The UPS is simple to start-up, operate and maintain.
The 9900D SERIES UPS is available in 1200, 1250, 1500, 1600 and 2000 kVA. Specifications are
shown in Section 1.5.
This manual provides an overview of the 9900D SERIES components and their functions. The
appearance and purpose of operator controls and indicators is described with procedures for
operation, start-up, shutdown and basic maintenance included.
WARNING 4
WARNING

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1.3DEFINITIONS
UNINTERRUPTIBLE POWER SUPPLY SYSTEM (UPS) – All components within the UPS Cabinet
and associated batteries that function as a system to provide continuous, conditioned AC power to
a load. This is sometimes referred to as the "System".
UPS CABINET – The metal enclosure which is the main part of UPS and composed of the Bypass
module, the 2 – 5 UPS modules, and the Cable Entry Section.
UPS MODULE – The metal enclosure which contains the Converter / Inverter, Charger, and internal
control systems required to provide specified AC power to a load.
CONVERTER / INVERTER – The UPS components which contain the equipment and controls
necessary to convert input AC power to output AC power required by the critical load.
CHARGER – The UPS components which contain the equipment and controls necessary to
regulate DC power required for battery charging and for supplying power to the Inverter.
BYPASS MODULE – The metal enclosure which contains the Bypass line, the Static transfer switch,
UPS operator controls, and internal control systems.
BYPASS LINE – The line which conducts electricity directly from the input power source to the critical
load during Maintenance or whenever the UPS is not completely operational.
STATIC TRANSFER SWITCH – The device which connects the critical load to the bypass line
when the Inverter cannot supply continuous power.
AC INPUT POWER – Power provided by the electrical utility company, or auxiliary generator, which
is connected to the UPS for supplying the critical load.
BATTERY –The rechargeable battery strings which supply DC power to the inverter to maintain
continuous AC power to the load during AC input power failure conditions.

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1.4OPERATION OVERVIEW
The UPS provides two power paths between the utility source and the critical load.
Figure 1.1 shows the path for normal operation, with the load powered from the inverter. Figure
1.2 shows the path for bypass operation, with the load supplied through the static bypass line.
A) Normal operation: Load power supplied by each system UPS inverter.
Figure 1.1 Single Line Diagram - Normal Operation: Load powered by UPS inverter
During normal operation, the path through the UPS inverters is used to power the load.
Referring to Figure 1.1: Input AC power is converted to DC by the Converter. DC power is utilized to
charge the UPS battery and to provide power to the Inverter. The Inverter converts the DC power to
clean AC power to supply the critical load.
Bypass Module
CB
3
CONVERTER / INVERTER
CHARGER
52
C
Static Transfer
Switch
52
S
CB
1
UPS Module
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
UPS
CABINET
AC
input
Battery
Cabinet
Bypass
Input
CB
Output
supplied
MCCB
User
supplied
MCCB
CB
External
BATTERY
Power Flow
Not in Use
Output
CB
3
5UPS
modules
–

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The conversion - inversion process eliminates any voltage transients or fluctuations existing in the
input power before it reaches the critical load.
The power drawn by the critical load is equally shared between all UPS whenever the system is in
the Parallel Operation.
The Bypass Input circuit breaker (MCCB) for protection of the UPS and cables are field
supplied and field installed. (See WARNING 4 on page 1-5).
B) Bypass Operation: Load Power supplied through UPS internal static bypass line.
Figure 1.2 Single Line Diagram - Bypass Operation: Load fed through static bypass line
Referring to Figure 1.2: The Internal Bypass line is a Hard-wired line through 52S which supplies
the critical load with unconditioned bypass input power. Upon switching to the Internal Bypass line,
Bypass Module
CB
3
CONVERTER / INVERTER
CHARGER
52
C
Static Transfer
Switch
52
S
CB
1
UPS Module
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
AC
input
Bypass
Input
CB
User
supplied
MCCB
User
supplied
MCCB
CB
Power Flow
Not in Use
Output
Battery
Cabinet
External
BATTERY
CB
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
UPS
CABINET
3
5 UPS
M
odules
–
NOTE
!

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the Static Transfer Switch line through CB3 (herein after STS contactor CB3) supplies the power
immediately, and then the Internal Bypass line through 52S supplies the power. In the event of a
switching to the Bypass line, the power to the critical load will be uninterrupted. The purpose of this
Internal Bypass line is to route power to the critical load while the UPS module is de-energized
(converter and inverter), and during Start-up before the system is fully operational.
Each UPS internal static bypass line will equally share the power supplied to the critical load in the
Parallel Operation if a cable length of bypass line is equal each other. For a MMS unable to equalize
the cable length, additional rectors should be installed to compensate the difference in cable
impedance.
In the event of a load overcurrent, the UPS transfers to bypass without interruption to the critical
load. In the case of the Parallel Operation, all UPS will transfer to bypass without interruption to the
critical load.
The internal control system determines the operation of the two paths, with the load powered from
the inverter being the normal operation.

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C) Battery operation: Load Power supplied by UPS battery.
Figure 1.3 Single Line Diagram - Battery Operation
Referring to Figure 1.3: In the event of AC input source failure or interruption, the UPS
Converter(s)* will de-energize and the UPS battery(s)* will immediately discharge and supply DC
power to the Inverter to maintain continuous AC power to the load. This operation will continue
until:
a) The battery capacity expires and the inverter turns off, or
b) Input power is restored after which the converter will power the inverter and critical load and
simultaneously recharge the batteries.
A fully charged battery will provide power for the specified time at the rated load, or longer, at a
reduced load.
(s)* : In the case of the Parallel Operation
Bypass Module
CB
3
CONVERTER / INVERTER
CHARGER
52
C
Static Transfer
Switch
52
S
CB
1
UPS Module
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
CONVERTER / INVERTER
CHARGER
52
C
CB
1
UPS Module
UPS
CABINET
AC
input
Bypass
Input
CB
supplied
MCCB
User
supplied
MCCB
CB
Power Flow
Not in Use
Output
Battery
Cabinet
External
BATTERY
CB
3
5 UPS
modules
–

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When power is restored after a low battery shutdown, the UPS converter(s)* automatically restarts
operation, the charger(s)* recharges the batteries and the Inverter(s)* is automatically restarted
without operator intervention. Load is automatically assumed by the inverter without operator
intervention.
(s)* : In the case of the Parallel Operation
The power drawn by the load is equally shared between all UPS regardless of the presence or
absence of the UPS that is (are) in battery operation or not whenever the system is in the Parallel
Operation.
Figure 1.4 UPS Parts Location
1) UPS cabinet – Front View
UPS Module
Cable Entry
Section
Bypass Module
LCD Touch Panel
Monitor Display
UPS Module

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2) Backside of Bypass Module door
3) UPS cabinet – Front Inside View
Pass
DC
INPUT
52S
CB3
DC
INPUT
AC
INPUT
BYPASS
INPUT
AC
OUTPUT
External I/F PCB
IOAU-19
CB2
LCD Touch Panel
Monitor Display
CB1(left), 52C(right)
(Back Side of PCB Unit)
Display PCB
DPAU
-89
Main PCB
UPJR
-D

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1.5SPECIFICATIONS
The UPS nameplate displays the rated kVA as well as nominal voltages and currents. The
nameplate is located on the backside of the Bypass Module door.
Table 1.3Power Specifications
Rated output
Power
Input voltage
3 phase / 3 wire
Bypass input voltage
3 phase / 3 wire
Output voltage
3 phase / 3 wire
1200kVA / 1200kW 480V 480V 480V
1250kVA / 1250kW 480V 480V 480V
1500kVA / 1500kW 480V 480V 480V
1600kVA / 1600kW 480V 480V 480V
2000kVA / 2000kW 480V 480V 480V
Table 1.4UPS Cabinet Information
UPS
[kVA]
Cable
Entry
Width
[in / mm]
Depth
[in / mm]
Height
[in / mm]
Weight
[lb./ kg]
Heat Loss
[kBTU / h]
1200 BOTTOM /
TOP
133.9 / 3400 35.4 / 900 80.7 / 2050 7270 / 3300 135.4
1250 BOTTOM /
TOP
133.9 / 3400 35.4 / 900 80.7 / 2050 7270 / 3300 141.0
1500 BOTTOM / TOP 169.3 / 4300 35.4 / 900 80.7 / 2050 9750 / 4423 163.7
1600 BOTTOM /
TOP
169.3 / 4300 35.4 / 900 80.7 / 2050 9750 / 4423 174.6
2000 BOTTOM /
TOP
192.9 / 4900 35.4 / 900 80.7 / 2050 11,470 / 5220 218.3