Gtec MUST400 User manual

MUST400_User manual_EN_REV02 User Manual - 1 -
Modular UPS MUST400
USER Manual

Safety Precautions
- 2 - MUST400_User manual_EN_REV02 User Manual
Safety Precautions
This manual contains information concerning the installation and operation of Modular UPS. Please carefully read this
manual prior to installation.
The Modular UPS cannot be put into operation until it is commissioned by engineers approved by the manufacturer (or its
agent). Not doing so could result in personnel safety risk, equipment malfunction and invalidation of warranty.
The UPS has been designed for commercial or industrial use only, and is not intended for use in any life support application.
This is a CLASS C Uninterruptible Power Supply (UPS) product. In a domestic environment, this product may cause radio
interference, in which case, the user may be required to take additional measures.
Conformity and standards
This product complies with 2006/95/EC ,CE73/23 & 93/68 (low voltage safety) and 2004/108/EC, 89/336 (EMC), and the
following UPS product standards:
*IEC62040-1 General and safety requirements for use in operator access area
*IEC/EN62040-2 EMC requirements CLASS C
*IEC62040-3 Performance requirements and test methods
Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved accessories
only.
WARNING: high earth leakage current
Earth connection is critical before connecting the input supply (include both utility supply and battery).
"Earth leakage current introduced by the UPS, in any configuration from 10kW to 200kW, exceeds 3.5 mA and is less than 1000
mAand complies with the requirements of IEC/EN 62040-1 / IEC/EN 60950-1" Transient and steady-state earth leakage currents,
which may occur when starting the equipment, should be taken into account when selecting instantaneous RCCB or RCD devices.
Residual Current Circuit Breakers ( RCCBs) must be selected sensitive to DC (class B) and insensitive to transient current pulses
Type S.
Note also that the earth leakage currents of the load will be carried by this RCCB or RCD.
This equipment must be earthed in accordance with local electrical authority codes of practice.
WARNING: backfeeding protection
This system has a control signal available for use with an automatic device, externally located, to protect against backfeeding
voltage through the mains Static Bypass circuit. If this protection is not used with the switchgear that is used to isolate the bypass
circuit, a label must be added to the switchgear to advise service personnel that the circuit is connected to a UPS system.
The text has the following meaning or is equivalent to: Isolate the UPS before working on the circuit of this UPS.
Components that can be maintained by user
All the equipment maintenance and servicing procedures involving internal access need special tools and should be carried out
only by trained personnel. The components that can only be accessed by opening the protective cover with tools cannot be
maintained by user.
This UPS full complies with “IEC62040-1-1-General and safety requirements for use in operator access area UPS”. Dangerous
voltages are present within the battery box. However, the risk of contact with these high voltages is minimized for non-service
personnel. Since the component with dangerous voltage can only be touched by opening the protective cover with a tool, the
possibility of touching high voltage component is minimized. No risk exists to any personnel when operating the equipment in the
normal manner, following the recommended operating procedures in this manual.
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MUST400_User manual_EN_REV02 User Manual - 3 -
Battery voltage higher than 400Vdc
All the battery maintenance and servicing procedures involving internal access need special tools or keys and should be carried out
only by trained personnel.
SPECIAL CARE SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED WITH THIS
EQUIPMENT.
WHEN CONNECTED TOGETHER, THE BATTERY TERMINAL VOLTAGE WILL EXCEED 400Vdc AND IS
POTENTIALLY LEATHAL.
Battery manufacturers supply details of the necessary precautions to be observed when working on, or in the vicinity of, a large
bank of battery cells. These precautions should be followed implicitly at all times. Particular attention should be paid to the
recommendations concerning local environmental conditions and the provision of protective clothing, first aid and fire-fighting
facilities.
THE NON-COMPLIANCE WITH THE REQUIREMENTS PRESENT IN THIS MANUAL WILL VOID THE
WARRANTY.
THE WARRANTY IS VOID IF THE INTERVENTIONS AND/OR MODIFICATIONS ARE EXECUTED BY
UNAUTHORIZED PERSONNEL.
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Contents
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Contents
Safety Precautions...............................................................................................................................- 2 -
Chapter 1 Installation.............................................................................................................................. 7
1.1 Introduction............................................................................................................................. 7
1.2 Initial Checking....................................................................................................................... 7
1.3 Location................................................................................................................................... 8
1.3.1 UPS Location.............................................................................................................. 8
1.3.2 External Battery Room............................................................................................... 8
1.3.3 Storage......................................................................................................................... 9
1.4 Positioning .............................................................................................................................. 9
1.4.1 System Cabinet ........................................................................................................ 10
1.4.2 Moving the Cabinets................................................................................................ 10
1.4.3 Distances Required for Operating.......................................................................... 10
1.4.4 Front Access & Rear access................................................................................... 10
1.4.5 Final Positioning ....................................................................................................... 10
1.4.6 Installation ofAdjustable Feet................................................................................. 10
1.4.7 UPS Composition..................................................................................................... 10
1.4.8 Installing Power Modules and Battery Modules................................................... 12
1.4.9 Cable Entry................................................................................................................ 13
1.5 External Protective Devices............................................................................................... 13
1.5.1 Rectifier and Bypass Input Supply of the UPS..................................................... 13
1.5.2 External Battery........................................................................................................ 14
1.5.3 UPS Output............................................................................................................... 14
1.6 Power Cables....................................................................................................................... 15
1.6.1 Cable Connections................................................................................................... 16
1.7 Control Cabling and Communication................................................................................ 17
1.7.1 UPS Dry Contact GJ and Monitoring Board FK Features.................................. 17
1.7.2 Dry Contact Interface of Battery and Environmental Temperature Detection. 18
1.7.3 Remote EPO Input Port........................................................................................... 18
1.7.4 Generator Input Dry Contact................................................................................... 19
1.7.5 BCB Input Port.......................................................................................................... 20
1.7.6 Battery Warning Output Dry Contact Interface .................................................... 21
1.7.7 Integrated Warning Output Dry Contact Interface............................................... 21
1.7.8 Mains Failure Warning Output Dry Contact Interface......................................... 22
Chapter 2 Battery Installation and Maintenance.................................................................................. 23
2.1 General Recommendations............................................................................................... 23
2.2 Battery cabinet typologies.................................................................................................. 24
2.2.1 Modular Battery Cabinet.......................................................................................... 24
2.2.2 Traditional Battery Installation ................................................................................ 25
2.2.3 Modular Battery Pack Installation .......................................................................... 26
2.2.4 Battery setting........................................................................................................... 27
2.2.5 Advanced battery Functions (Software Settings Performed by the
Commissioning Engineer)................................................................................................. 28
2.3 Battery Maintenance........................................................................................................... 29
Chapter 3 Installation of UPS System and Parallel System.................................................................... 30
3.1 Overview............................................................................................................................... 30
3.2 UPS system in Parallel function ........................................................................................ 30
3.2.1 Features of Parallel System.................................................................................... 31

Contents
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3.2.2 Parallel Requirements of UPS Modules................................................................ 31
3.2.3 Installation of Cabinet.............................................................................................. 31
3.2.4 External Protective Devices.................................................................................... 31
3.2.5 Power Cables............................................................................................................ 31
3.2.6 Parallel Signal Board ............................................................................................... 32
3.2.7 Control Cables.......................................................................................................... 32
3.2.8 Parallel functioning setting...................................................................................... 33
Chapter 4 Installation Drawing.............................................................................................................. 34
4.1 Internal Battery Module....................................................................................................... 40
4.1.1 Appearance of Internal Battery Module................................................................. 40
Chapter 5 Operations............................................................................................................................ 42
5.1 Introduction........................................................................................................................... 42
5.1.1 Split-Bypass Input..................................................................................................... 43
5.1.2 Static Transfer Switch.............................................................................................. 43
5.2 Operating Mode................................................................................................................... 43
5.2.1 Normal Mode............................................................................................................. 44
5.2.2 Battery Mode............................................................................................................. 44
5.2.3 Auto-Restart Mode ................................................................................................... 44
5.2.4 Bypass Mode ............................................................................................................ 44
5.2.5 Cold Start Mode........................................................................................................ 44
5.2.6 Maintenance Mode (Manual Bypass).................................................................... 44
5.2.7 Parallel Redundancy Mode (System Expansion)................................................ 44
5.2.8 Eco Mode................................................................................................................... 45
5.2.9 Soft start..................................................................................................................... 45
Chapter 6 Operating Instructions.......................................................................................................... 46
6.1 Introduction........................................................................................................................... 46
6.1.1 Power Switches........................................................................................................ 46
6.2 UPS Startup.......................................................................................................................... 46
6.2.1 Start-Up Procedure.................................................................................................. 47
6.2.2 Procedures for Switching Between Operation Modes........................................ 48
6.3 Procedure for Switching the UPS between Maintenance Bypass and Normal Mode
...................................................................................................................................................... 48
6.3.1 Procedure for Switching from Normal Mode to Maintenance Bypass Mode... 48
6.3.2 Procedure for Switching from Maintenance Mode to Normal Mode................. 49
6.4 Procedure for Completely Powering Down a UPS......................................................... 50
6.5 EPO Procedure.................................................................................................................... 50
6.6 Auto Start .............................................................................................................................. 50
6.7 UPS Reset Procedure......................................................................................................... 50
6.8 Operation Instruction for Power Module Maintenance................................................... 51
6.9 Language Selection............................................................................................................. 52
6.10 Changing the Current Date and Time............................................................................. 52
6.11 Control Password 1........................................................................................................... 52
Chapter 7 Operator Control and Display Panel ..................................................................................... 53
7.1 Introduction........................................................................................................................... 53
7.1.1 Mimic Current Path................................................................................................... 54
7.1.2 Audible Alarm (buzzer)............................................................................................. 54
7.1.3 Functional Keys........................................................................................................ 55
7.1.4 Battery Pack Indicator.............................................................................................. 55
7.2 LCD Display Type................................................................................................................ 55
7.3 Detailed Description of Menu Items.................................................................................. 57

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7.4 UPS Event Log..................................................................................................................... 59
Chapter 8 Optional Parts....................................................................................................................... 63
8.1 Replacing Dust Filters......................................................................................................... 63
Chapter 9 Product Specification............................................................................................................ 65
9.1 Applicable Standards .......................................................................................................... 65
9.2 Environmental Characteristics........................................................................................... 65
9.3 Mechanical Characteristics................................................................................................ 66
9.4 Electrical Characteristics (Input Rectifier)........................................................................ 66
9.5 Electrical Characteristics (Intermediate DC Link)........................................................... 67
9.6 Electrical Characteristics (Inverter Output)...................................................................... 68
9.7 Electrical Characteristics (Bypass Input).......................................................................... 69
9.8 Efficiency............................................................................................................................... 70
Appendix A. Split-Bypass Input Connection.......................................................................................... 71
Appendix B. UPSilon free SW ................................................................................................................ 73
Appendix C. MTR setting software........................................................................................................ 74

Chapter 1 Installation
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Chapter 1 Installation
1.1 Introduction
This chapter introduces the relevant requirements for positioning and cabling of the Modular UPS and related
equipment. Because each site has its requirements, it is not the aim of this chapter to provide step-by-step
installation instructions, but to act as a guide for the general procedures and practices that should be observed
by the installing engineer.
Warning: installation can only be done by authorized engineers
Do not apply electrical power to the UPS equipment before the commissioning engineer arrives at installation site.
The UPS should be installed by a qualified engineer in accordance with the information contained in this chapter.All the
equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation
information.
Note: 3-Phase 4-Wire Input Power is required
The standard UPS system can be connected to TN, TTAC distribution system (IEC60364-3) of 3-phase 4-
wire, and a 3-wire to 4-wire conversion transformer is provided as an optional part.
WARNING: battery hazards
SPECIAL CARE SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED WITH
THIS EQUIPMENT.
After battery connection, the battery terminals voltage will exceed 400Vdc and is potentially lethal.
Follow the suggested actions here below:
Eye protection must be worn to prevent injury from accidental electrical arcs.
Remove rings, watches and all metal objects.
Only use tools with insulated handles.
Wear rubber gloves.
If a battery leaks electrolyte, or is otherwise physically damaged, it must be replaced, stored in a
container resistant to sulfuric acid and disposed of in accordance with local regulations.
If electrolyte comes into contact with the skin, the affected area should be washed immediately with
water.
1.2 Initial Checking
Before installing UPS, please check these items as below:
1. Visually examine if there is any damage inside and outside the UPS rack and battery equipment due to the
transportation. Report any such damage to the shipper immediately.
2. Verify the product label and confirm the correctness of the equipment. The equipment label is attached on
the back of front door. The UPS model, capacity and main parameters are marked on the label.
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8MUST400_User manual_EN_REV02 User Manual
1.3 Location
1.3.1 UPS Location
The UPS is intended for indoor installation and should be located in a cool, dry and clean environment with
adequate ventilation to keep the environmental parameters within the specified operating range (see Table.9-
2).
Improper use of UPS and in condition out of the operating range invalid the warranty.
Avoid to install the UPS in room which are exposed directly under sunlight or near sources of hot air.
The Modular series UPS uses forced convection cooling by internal fans. Cooling air enters the module
through ventilation grills located at the front part of the cabinet and exhausted through grills located in the rear
part of the cabinet. Please do not block the ventilation holes.
If necessary, an extractor fans system should be installed to aid cooling-air flow.
An air filter should be used when the UPS is to operate in a dirty environment and should be regularly cleaned
to maintain proper airflow.
The cooling capacity of air conditioner should be selected according to the power loss data of UPS specified
in Table.9-8: Normal mode (VFI SS 111 double-conversion UPS)
Note 1 : The UPS should be installed on a concrete surface or other surface that is not combustible.
Note 2 : Ensure that the capacity of the floor is greater than the weight of the UPS and battery cabinet (if
present), and verify that the floor is flat.
1.3.2 External Battery Room
The battery will generate some amount of hydrogen and oxygen at the end of charging, so the fresh air volume
of the battery installation environment must meet EN50272-2001 requirements.
The environmental temperature of the battery must be stable. Ambient temperature is a major factor in
determining the battery capacity and lifetime.
The rated operating temperature of battery is 20°C. Operating above this temperature will reduce the battery
life, and operation belowthis temperature will reduce thebattery capacity. If the average operating temperature
of battery is increased from 20ºC to 30ºC, then the service life of the battery will be reduced by 50%. If the
operating temperature of the battery is above 40ºC, then the battery service life will decrease in exponential
rate.
In a normal installation, the battery temperature is maintained between 15°C and 25°C. Keep batteries away
from heat sources or air outlets.
If external batteries are used, the battery circuit breakers (or fuses) must be mounted as close as possible to
the batteries, and the connecting cables should be as short as possible.
(*): The standard EN 50272-2 for air change envisages that the minimum opening must satisfy the following equation:
A = 28 x Q = 28 x 0.05 x n x Igas x C10 (1/10³) [cm²]
where: A = free opening for air intake and outlet
Q = flow of air to be removed [m³/h]
n = number of battery elements;
C10 = battery capacity over 10 hours [Ah]
Igas = current that produces gas [mA//Ah]
in accordance with the standard: Igas = 1 VRLA type battery
When the equation is applied for 240 element (40 battery) hermetically-sealed lead batteries:
A = 336 x C10 / 10³ [cm²]
When using 120Ah batteries, the minimum aperture should be approximately:
A = 41 [cm²]

Chapter 1 Installation
MUST400_User manual_EN_REV02 User Manual 9
1.3.3 Storage
If the equipment is not installed immediately, it must be stored in a room protected against excessive humidity
and heat sources (see Table.9-2).
The battery needs to be stored in dry and cool place with good ventilation.
The most suitable storage temperature is from 20 ºC to 25ºC.
Preventing battery slow discharge
Should the UPS remains unpowered for a prolonged period of time while the battery are connected, the
batteries may slowly discharge and being so permanently damaged .In such cases it is therefore
recommended to leave the battery circuit breaker(s) open. During storage in any case, periodically charge
the battery according to the battery user manuals.
1.4 Positioning
When the equipment has been positioned, ensure the UPS will remain stationary and stable.
To guarantee optimize working lifetime, the place chosen must guarantee:
Space for easy operation on the UPS
Enough air to dispel heat produced by UPS
Protection against atmospheric agents
Protection against excessive humidity and heat sources
Protection against dust
With the current fire prevention requirements
The operating environment temperature is within +20°C to +25°C. The batteries are at maximum
efficiency in this temperature range (for information about the battery storage and transportation as well
as the environment, refer to Table.9-2 )
This equipment is of steel frame structure wrapped by removable panels. The cover and the lateral
panels are fixed by screws.
After opening the UPS rack door, the auxiliary connections for communitation ports and dry-contact and
the maintenance bypass can be accessed.
The UPS provides air inlet port in the front and the air exhaust port in the rear part. It is forbidden to
install the UPS directly to the rear wall. Leave at least 50cm of free space in the rear. See picture
below.
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1.4.1 System Cabinet
A UPS system can comprise an UPS rack system, external battery cabinet, depending on the specific system
requirement.
All the UPS system cabinets used in the same installation site are of the same height and should be positioned
side-by-side to achieve an aesthetically appealing effect. Refer to Chapter 7 Installation Drawing for the
positioning of UPS cabinet.
1.4.2 Moving the Cabinets
Warning
Ensure that any lifting equipment used in moving the UPS cabinet have sufficient lifting capacity. The UPS
is fitted with castors –take care to prevent movement when unbolting the equipment from its shipping pallet.
Ensure adequate personnel and lifting aids are available when removing the shipping pallet.
Ensure that the UPS weight is within the weight loading capacity range of any hoisting equipment. See Table.9-
3 for UPS weight.
UPS and optional cabinets can be handled by means of a fork lift or similar equipment. The UPS cabinet can
also be moved by its wheels (where are present) only for short distance.
Note: Care must be taken when handling units fitted with batteries. Keep such moves to a minimum.
1.4.3 Distances Required for Operating
It’s no necessary to leave free space in lateral part of the UPS.
To permit first commissioning, the tightening of power terminals inside the UPS and all service activity, it is
recommended to leave enough free space to enable the passage of personnel with the doors fully opened. It
is important to leave a distance of 500mm in the rear side of the rack to permit adequate circulation of air
coming out the unit.
1.4.4 Front Access & Rear access
The UPS system is designed for front and rearaccess. For common service activity and replacement of power
modules is required only front access, for installation is required rear access.
1.4.5 Final Positioning
When the equipment has been finally positioned, ensure the adjustable feet are set so that the UPS will remain
stationary and stable.
1.4.6 Installation of Adjustable Feet
Installation diagrams in Chapter 4 of this manual identify the location of the holes in the base plate through which the
equipment can be bolted to the floor. If the UPS is to be located on a raised floor, it should be mounted on a pedestal suitably
designed to accept the UPS point loading (more than 800 kg).
1.4.7 UPS Composition
The UPS structure is shown in Fig. 1-1. The UPS configuration is available in Table. 1-1
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