Gtec MUST400 User manual

Preliminary Version
Modular UPS MUST400
USER Manual

Preliminary Version
Safety Precautions
This manual is about installation and operation of MUST400 modular UPS (Hereinafter referred as UPS).
Please carefully read this manual prior to installation.
The UPS must be debugged and maintained by an engineer commissioned by the manufacturer or the
agent. therwise, human safety may be endangered and the damage of UPS shall not belong to the
warranty scope.
APPLICABLE STANDARDS
This product complies with 2006/95/EC- CE 73/23 & 93/68 (low voltage safety) and 89/336 – 2004/108/EC
(EMC) , and EMC standards of Australia and New Zealand (C-Tick) , and the following UPS product
standards:
*IEC62040-1-1-General and safety requirements for use in operator access area
*IEC/EN62040-2 EMC requirements CLASS C3
*IEC62040-3 Performance requirements and test methods
WARNING- High earth leakage current
Earth connection is critical before connecting the input supply (include both utility supply and battery). This
equipment must be earthed in accordance with local electrical authority codes of practice.
Earth leakage current exceeds 3.5 mA and is less than 1000 mA.
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 insensitive to DC unidirectional pulses
( class A ) and transient current pulses ( RCCBs).
Note it that the earth leakage currents of the load will also flow across RCCB or RCD.
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.
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 SH ULD BE TAKEN WHEN W RKING WITH THE BATTERIES ASS CIATED WITH
THIS EQUIPMENT. WHEN C NNECTED T GETHER, THE BATTERY TERMINAL V LTAGE WILL
EXCEED 400Vdc AND IS P TENTIALLY LETHAL.
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.

Contents
Chapter 1 Installation.............................................................................................................................. 4
1.1 Introduction ................................................................................................................................. 4
1.2 Initial Checking............................................................................................................................ 4
1.3 Positioning .................................................................................................................................. 5
1.3.1 Distribution Room ............................................................................................................ 5
1.3.2 Battery Room................................................................................................................... 5
1.3.3 Storing ............................................................................................................................. 5
1.4 Disassembly, Initial Checking and Positioning ............................................................................ 5
1.4.1 System Packaging: .......................................................................................................... 5
1.4.2 Module Packaging: .......................................................................................................... 7
1.4.3 UPS Composition ............................................................................................................ 9
1.4.4 peration Space............................................................................................................ 10
1.4.5 Front and Back Access.................................................................................................. 10
1.4.6 Final Positioning ............................................................................................................ 10
1.4.7 Power Module Installation.............................................................................................. 10
1.4.8 Cable Entry.................................................................................................................... 11
1.5 Protective Devices .................................................................................................................... 12
1.5.1 Rectifier and Bypass Input Supply of the UPS............................................................... 12
1.5.2 Battery ........................................................................................................................... 12
1.5.3 UPS utput.................................................................................................................... 13
1.6 Power Cables............................................................................................................................ 13
1.6.1 Maximum stable state current and configuration of cable system.................................. 13
1.6.2 Cable Connection .......................................................................................................... 13
1.7 Control and Communication Cabling......................................................................................... 14
1.7.1 Dry Contact Interface of Battery and Environmental Temperature Detection ................ 15
1.7.2 Remote EP Input Port ................................................................................................. 15
1.7.3 Generator Input Dry Contact.......................................................................................... 16
1.7.4 BCB Input Port............................................................................................................... 16
1.7.5 Battery Warning utput Dry Contact Interface............................................................... 17
1.7.6 Integrated Warning utput Dry Contact Interface.......................................................... 17
1.7.7 Mains Failure Warning utput Dry Contact Interface .................................................... 18
1.7.8 RS232 Port and SNMP Card Port.................................................................................. 18
1.7.9 LBS (Load Bus Synchronizer) Port................................................................................ 19
1.8 Installation Drawing................................................................................................................... 19
Chapter 2 Operations 23
2.1 Introduction ............................................................................................................................... 23
2.1.1 Principle......................................................................................................................... 23
2.1.2 Bypass Module .............................................................................................................. 24
2.2 peration Mode ........................................................................................................................ 24
2.2.1 Normal Mode ................................................................................................................. 25
2.2.2 Battery Mode ................................................................................................................. 25

2.2.3 Auto-Restart Mode......................................................................................................... 25
2.2.4 Bypass Mode ................................................................................................................. 25
2.2.5 Maintenance Mode ........................................................................................................ 25
2.2.6 EC Mode..................................................................................................................... 26
2.2.7 Frequency Converters Mode ......................................................................................... 26
2.3 Battery Management................................................................................................................. 26
2.3.1 Normal Function ............................................................................................................ 26
2.3.2 Advanced Functions (Battery Self-checking and Maintenance)..................................... 26
2.4 Battery Protection...................................................................................................................... 27
Chapter 3 Operating Steps ................................................................................................................... 28
3.1 Power Switches ........................................................................................................................ 28
3.2 UPS Start-up............................................................................................................................. 28
3.2.1 Normal Module Start...................................................................................................... 29
3.3 Procedure for Switching between peration Modes ................................................................. 32
3.3.1 Procedure for Switching the UPS into Battery mode from Normal Mode....................... 32
3.3.2 Procedure for Switching the UPS into Bypass mode from Normal Mode ...................... 32
3.3.3 Procedure for Switching the UPS into Normal from Bypass Mode ................................ 32
3.3.4 Procedure for Switching the UPS into a Maintenance Bypass from Normal Mode........ 32
3.3.5 Procedure for Switching the UPS into Normal from a Maintenance Bypass Mode........ 32
3.4 Procedure for Completely Powering down a UPS..................................................................... 33
3.5 EP Procedure......................................................................................................................... 33
3.6 Language Selection .................................................................................................................. 33
3.7 Control Password...................................................................................................................... 33
Chapter 4 Operator Control and Display Panel .................................................................................. 34
4.1 Introduction ............................................................................................................................... 34
4.1.1 LED Indicator................................................................................................................. 35
4.1.2 Audible Alarm (buzzer) .................................................................................................. 35
4.1.3 Functional Keys ............................................................................................................. 36
4.2 LCD Display Type ..................................................................................................................... 36
4.3 Detailed Description of Menu Items .......................................................................................... 39
4.4 Alarm List.................................................................................................................................. 41
Chapter 5 Installation of Parallel Operation System 43
Chapter 6 Maintenance ......................................................................................................................... 45
6.1 Instruction to Power, Bypass, and utput Power Distribution Module ...................................... 45
6.1.1 Precautions.................................................................................................................... 45
6.1.2 Instruction to Power Module .......................................................................................... 45
6.1.3 Instruction to Bypass Module......................................................................................... 45
6.2 Replacing Dust Screen (optional).............................................................................................. 46
Chapter 7 Product Specification .......................................................................................................... 47
7.1 Applicable Standards ................................................................................................................ 47
7.2 Environmental Characteristics .................................................................................................. 47

7.3 Mechanical Characteristics ....................................................................................................... 47
7.4 Electrical Characteristics (Input Rectifier) ................................................................................. 48
7.5 Electrical Characteristics (Intermediate DC Link)...................................................................... 48
7.6 Electrical Characteristics (Inverter utput)................................................................................ 49
7.7 Electrical Characteristics(Bypass Mains Input) ......................................................................... 50
7.8 Efficiency................................................................................................................................... 50
Appendix A Guidebook to rdering and Selection of PM System . Errore Il segnalibro non è definito

Chapter 1 Installation
4
Chapter 1 Installation
This chapter introduces the installation of RM series UPS (hereby referred to as UPS), including
initial checking, sitting, positioning, cabling and installation drawings.
1.1 Introduction
This chapter introduces the relevant requirements for positioning and cabling of the UPS.
As each site has its requirements, this chapter provides step-by-step installation instructions, which
acts as a guide to the general procedures and practices that should be observed by the installing
engineer.
Warning-Installation can only be done by authorized engineers
1. Do not apply electrical power to the UPS equipment before the approval of commissioning
engineer.
2. The UPS should be installed by a qualified engineer in accordance with the information contained
in this chapter.
Note: 3-Phase 4-Wire Input Power is required
The standard UPS can be connected to TN, TT and IT AC distribution system (IEC60364-3) of
3-phase 5-wire
WARNING: battery hazards
SPECIAL CARE SH ULD BE TAKEN WHEN W RKING WITH THE BATTERIES ASS CIATED
WITH THIS EQUIPMENT. When connecting the battery, the battery terminal voltage will exceed
400Vdc and is potentially lethal.
 Eye protection should be worn to prevent injury from accidental electrical arcs.
 Remove rings, watches and all metal objects.
 nly 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
Perform the following checking operations prior to the UPS installation.
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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5
1.3 Positioning
1.3.1 Distribution Room
The UPS is designed for indoor installation, which shall be located in a clean environment with
adequate ventilation to keep the environmental temperature within the required specification. The 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, a system of extractor fans 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
airflow.
Note: The UPS should be installed on a cement surface or other surface that is not
combustible
1.3.2 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
ambient temperature of the battery must be stable. Ambient temperature is a major factor in determining
the battery capacity and life. The nominal operating temperature of battery is 20°C. perating above this
temperature will reduce the battery life, and operation below this temperature will reduce the battery
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 be decreased in exponent 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 to be used, a battery protection device (a DC circuit breaker) must be
mounted as close as possible to the batteries, and the connecting cables should be as short as possible.
1.3.3 Storing
If the equipment is not installed immediately, it must be stored in a room so as to protect it against
excessive humidity and heat sources. The battery needs to be stored in dry and cool place with good
ventilation. The most suitable storage temperature is 20 ºC to 25ºC.
1.4 Disassembly, Initial Checking and Positioning
Check the packaging first upon the arrival of product to see if there is any damage; open the
packaging to check the equipment; report any such damage to the shipper immediately.
1.4.1 System Packaging:
pen the wooden case first, the open method is shown in fig 1-1:

Chapter 1 Installation
6
Fig 1-1 pen method
Firstly, open the top plate of the steel-edged wooden case with slotted awl and plier, followed by
sideboards. Be careful not to scratch the product. See fig 1-2.
Fig 1-2 Disassemble the case
Take out the foam after disassembling the sideboards of the case as shown in fig 1-3.

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Fig 1-3 Complete the disassembly
Tip: Dismantle the bolt that connects the cabinet and wooden pallet after disassembly, then lift the
cabinet to installation position. The dismantlement should be careful so as not to scratch the body.
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.
1.4.2 Module Packaging:
The open method is shown in fig 1-4:
The packing case should be placed horizontal and stable;
Fig 1-4 pen method
Cut the plastic packing belt and scotch tape to open the carton, see fig 1-5:

Chapter 1 Installation
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Fig 1-5 pen the carton
pen the foamed cover, the equipment with plastic package can be see as shown in fig 1-6:
Fig 1-6 pen the foamed cover
At last, take out the equipment with plastic package, and dismantle the packaging materials.
Warm Tips: Please dispose the wasted materials in accordance with environmental
protection requirements after disassembly
To prolong the service life, the place chosen for the UPS must guarantee:
 Easy wiring
 Sufficient space for operation
Carton
Foamed package
Carton
Equipment
Top cover of foamed package
Foamed package

Chapter 1 Installation
9
 Air sufficient enough to dispel heat produced by UPS
 Against ambient corrosive gases
 Against excessive humidity and heat sources
 Against dust
 With the current fire prevention requirements
 The operating environment temperature is within 20°C～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, please refer to table 6-2).
1.4.3 UPS Composition
UPS composition shall refer to fig 1-7; UPS configuration shall refer to table 1-1.
功率模块
旁路模块
开关单元
配电单元
2m cabinet (front view) 2m cabinet (back view)
Bypass module
Power module
Distribution
unit
Switch unit

Chapter 1 Installation
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开关单元
旁路模块
功率模块
配电单元
1.6m cabinet (front view) 1.6m cabinet (back view)
Fig 1-7 UPS Composition Diagram
Table 1-1 UPS Configuration Table
Involved part name Quantity (Piece)
Note
Switch PDU 1 Standard configuration
Cabinet Monitoring + bypass
module 1 Standard configuration
Power module Power module 1～6 or 1～10 Field installation is
required
1.4.4 peration Space
As UPS has no ventilation grills at either sides, no clearances are required for the sides.
To enable routine tightening of power terminations within the cabinet, it is recommended that
clearance around the front and back of the equipment should be sufficient to enable free passage of
personnel with the doors fully opened.
1.4.5 Front and Back Access
The component layout of the UPS supports front and back access for servicing, diagnosing and
repairing the UPS, thus reducing the space requirement for side access.
1.4.6 Final Positioning
When the equipment has been finally positioned, ensure the adjustable feet are set so that the UPS
will remain stationary and stable.
1.4.7 Power Module Installation
The installation position of power module and output distribution module are shown in fig 1-8. the
installation principle of these modules is to installed from bottom to top to prevent inclination of the
cabinet due to high center of gravity .
As is shown in fig 1-8, the installation procedure of power module is as follows:
Switch unit
Bypass module
Power module
Distribution unit

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11
1. Each module shall be installed from bottom to top, the default setting of the system is module No. 1,
2, 3, 4, 5, 6, 7, 8, 9, and 10.
2. Insert the module into installation position, and push in the cabinet. The wiring terminals in between
shall be tight, and excessive force shall be prevented against the damage to inserted pins of the
terminals.
3. Fix the module to the cabinet though the mounting holes on two sides of the front plate of the
module.
固定孔
A处放大
Fig 1-8 Power Module Installation Diagram
1.4.8 Cable Entry
Cables can enter the UPS from top and below as shown in fig 1-9. Both the top and bottom of the
UPS have cable entrance.
The recommended installation practice is to install power cables in the entrance channel
at both sides of the cabinet back door, so as not to affect the ventilation.
进线通道 进线通道
Fig 1-9 Cable Entry Diagram
Power module
Fixing hole
Amplification of A
Cable entrance Cable entrance

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12
1.5 Protective Devices
For safety concerns, it is recommended to install external circuit breakers or other protective devices
for the input AC supply of the UPS system. This section provides generic practical information for
qualified installation engineers. The installation engineers should have the knowledge of the regulatory
wiring standards, and of the equipment to be installed.
1.5.1 Rectifier and Bypass Input Supply of the UPS
Install suitable protective devices in the distribution unit of the incoming mains supply, considering
the power cable current-carrying capacity and overload capacity of the system. Generally, the magnetic
circuit breaker with IEC60947-2 tripping curve C (normal) at the 125% of the current listed in table 1-2 is
recommended.
Note
For IT power network system, 4-pole protective device must be installed on the external input
distribution of the UPS.
If protection against earth faults (RCD devices) is required for the upstream of the input supply, the
installed device should:
 Sensitive to DC unidirectional pulses (class A) in the network
 Insensitive to transient current pulses
 Have an average sensitivity that is adjustable between 0.3A～1A
The RCCB must be sensitive to DC unidirectional pulses (class A) in the network, while insensitive
to transient current pulses, as shown in fig 1-10 respectively.
Fig 1-10 RCCB sign
1.5.2 Battery
A battery unit is composed of 40 batteries connected in series, a centreline is drawn from in
between (the joint part between the 20
th
and 21
st
battery), plus the line drawn from the front and back,
there are altogether 3 lines connected with UPS line contact bank. The battery line must push through a
DC circuit breaker before connecting to corresponding UPS line contact bank. The detailed wiring please
refer to fig 1-11 below:
Fig 1-11 Diagram of batteries connected in series
40 batteries connected in series

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13
1.5.3 UPS utput
A main output switch has been installed in UPS, the user shall install the over current protective
device on the bypass of each output of the external distribution cabinet.
1.6 Power Cables
Design the cables according to the descriptions in this section and local regulatory wiring standards,
and the environmental conditions should be taken into consideration. Refer to IEC60950-1 Table 3B.
Warning
Prior to cabling the UPS, confirm the status and positions of the switches of the UPS rectifier input
power supply / bypass power supply and mains power distribution board.
Ensure that these switches are opened and attached with WARNING label so as to prevent
unauthorized operation to these switches.
1.6.1 Maximum stable state current and configuration of cable system
Maximum stable state current and configuration of cable system, please refer to table 1-2.
Table 1-2 Maximum stable state current and configuration of cable system
System Name RM-120/20 RM-200/20
Capacity System capacity 120kVA 200kVA
Module capacity 20kVA 20kVA
Cabinet dimension 600*900*1600(W*D*H mm) 600*900*1600(W*D*H mm)
Main Input Rated current A 180 300
Cable mm
2
50 75
utput Rated current A 180 300
Cable mm
2
50 75
Battery Rated current A 212 355
Cable mm
2
75 90
PE Cable mm
2
75 90
Warning
FAILURE T F LL W ADEQUATE EARTHING PR CEDURES CAN RESULT IN EMI, ELECTRIC
SH CK HAZARD R RISK F FIRE.
1.6.2 Cable Connection
Note
The operations described in this section must be performed by authorized electricians or qualified
technical personnel. If you have any difficulties, do not hesitate to contact our Customer Service &
Support department .

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14
After the equipment has been finally positioned and secured, connect the power cables as
described in the following procedures:
1. Verify that all the external input distribution switches of the UPS are completely opened and the
UPS internal maintenance bypass switch is opened. Attach necessary warning signs to these
switches to prevent unauthorized operation.
2. pen the back door of the cabinet, remove the cover and then the input and output terminal,
battery terminal and earth terminal are visible.
3. Connect the input earth wire to input earth terminal. Please note: the earth wire shall be connected
in accordance with related local or state regulation
4. For common bypass and rectifier inputs, connect the AC input supply cables to the UPS input
terminals (
Main input A-B-C-N ), and connect the output loaded cable to the UPS output terminals
( utput A-B-C-N) and tighten the connections to 13 Nm (M8 Bolt). ENSURE CORRECT PHASE
ROTATION
5. Connect the battery cables between the UPS battery terminals and battery switch. ENSURE
CORRECT PHASE ROTATION
Warning-Hazardous battery terminal voltage of 400Vdc
Ensure the correct polarity connection between the battery terminals and the UPS terminals: Positive
terminal to positive terminal, negative terminal to negative terminal, and disconnect one or more than
one cable between every two layers of batteries. Do not connect the cables and close the battery
circuit breakers before getting the approval from the commissioning engineer.
6. Re-install all the protective covers.
1.7 Control and Communication Cabling
As shown in fig 1-12, the front panel of the bypass module will provide dry contact interface
(J2~J10), communication interface (RS232, 485 and SNMP card interface), as well as LBS interface.
干接点接口
SNMP卡接口
RS485接口
RS232接口
LBS接口
Fig 1-12 Dry contact interface and communication interface
The UPS accepts external signal from zero-voltage (dry) contacts connected through external dry
contact terminals produced and phoenix terminals that are in bypass module. Through software
programming, these signals become active when these contacts connect to +24V to ground).The cables
connected to DRY terminal must be separated from power cables. Moreover, these cables should be
double insulated with a typical 0.5 to 1.5 mm
2
cross-section area for a maximum connection length
between 25 and 50 meters.
Dry contact
interface
SNMP card port
LBS port RS232 port
RS485 port

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15
1.7.1 Dry Contact Interface of Battery and Environmental Temperature Detection
The input dry contact J2 and J3 can detect the temperature of batteries and environment
respectively, which can be used in environment monitoring and battery temperature compensation 1.
J2 and J3 interfaces diagram are shown in fig 1-13, the description of interface is in table 1-3.
Fig 1-13 Diagram of J2 and J3 dry contact for temperature detecting
Table 1-3 Description of input dry contact interface J2 and J3
Position Name Purpose
J2.1 TEMP_BAT Battery temperature detection
J2.2 GND Power ground
J3.1 TEMP_ENV Environment temperature detection
J3.2 GND Power ground
Note: Specified temperature sensor is required for temperature detection (R25=5 hm,
B25/50=3275), please confirm with the manufacturer, or contact local maintenance engineers when
placing an order.
1.7.2 Remote EP Input Port
The UPS has an Emergency Power FF (EP ) function. This function can be activated by pressing
a button on the control panel of the UPS or through a remote contact provided by the user. The EP
pushbutton is protected by a hinged plastic cover.
J4 is the input port for remote EP . It requires shorting NC and +24v during normal operation, and
the EP is triggered when opening NC and +24v, or shorting N and +24v. The port diagram is shown in
fig 1-14, and port description is shown in table 1-4.
Fig 1-14 Diagram of input port for remote EP
Table 1-4 Description of input port for remote EP
Position Name Purpose
J4.1 EP _NC EP is activated when disconnecting fromJ4.2
J4.2 ＋24V +24V, connect the common terminal of NC and N

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16
J4.3 EP _N EP is activated when shorting with J4.2
The EP is triggered when shorting pin 2 and 3 or opening pin 2 and 1 of J4.
If an external emergency stop facility is required, it is connected via the reserved terminals of J4.
The external emergency stop facility needs to use shielded cables to connect to the normally
open/closed remote stop switch between these two pins. If this facility is not used, then pin 3 and pin 4 of
J4 must be open, or pin 1 and pin 2 of J4 must be shorted.
Note
1. The emergency stop action within the UPS will shut down the rectifier, inverter and static bypass.
However, it does not internally disconnect the mains input power supply. To disconnect ALL power to
the UPS, open the upstream input circuit breaker(s) when the EP is activated.
2. Pin 1 and 2 of J4 have been shorted before the UPS is delivered.
1.7.3 Generator Input Dry Contact
J5 is status interface for generator connection. Connect pin 2 of J5 with + 24V power supply, it
indicates that the generator has been connected with the system. The interface diagram is shown in fig
1-15, and interface description is shown in table 1-5.
Fig 1-15 Diagram of status interface and connection of generator
Table 1-5 Description of maintenance bypass switch and output switch status interface
Position Name Purpose
J5.1 +24V +24V power supply
J5.2 GEN Connection status of generator
J5.3 GND Power ground
1.7.4 BCB Input Port
J6 and J7 are the ports of BCB. The port diagram is shown in fig 1-16, and description is shown in
table 1-6.
Generator