Vertiv Liebert APM 300 User Manual
APM 300 Integrated UPS Single Module And Parallel System
User Manual
Version V1.5
Revision date March 10, 2017
BOM 31012521
Emerson Network Power provides customers with technical support. Users may contact the nearest
Emerson local sales office or service center.
Copyright © 2011 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change without notice.
Emerson Network Power Co., Ltd.
Address: Block B2, Nanshan I Park, No.1001 Xueyuan Road, Nanshan District, Shenzhen, 518055, P.R.China
Homepage: www.emersonnetworkpower.com
E-mail: overseas.support@emerson.com
Special Declaration
Personnel Safety
1. This product must be installed and commissioned by professional engineers of the manufacturer or its
authorized agent. Failure to observe this could result in product malfunction or personnel safety risk.
2. Take the time to read this product manual and the safety precaution thoroughly before installing and
commissioning this product. Failure to observe this could result in product malfunction or personnel
safety risk.
3. This product cannot be used as power supply of life support equipment.
4. Never dispose of the internal or external battery of this product in a fire, as it may explode and
jeopardize personnel safety when exposed to flame.
Product Safety
1. If this product will be stored or remain de-energized for a long period, it must be placed in a dry and
clean environment within specified temperature range.
2. This product should be used in an appropriate operating environment. For details, refer to the section
on the environmental requirement in this manual.
3. It is prohibited to use this product in places:
Where the temperature and relative humidity are outside the specifications
Subject to vibrations or shocks
Where conductive dusts, corrosive gases, salts, or flammable gases are present
Near heat sources or strong electromagnetic interferences
Disclaimer
Emerson disclaims any and all responsibility or liability for the defection or malfunction caused by:
Application range or operating environment outside the specifications
Unauthorized modification, improper installation or operation
Force majeure
Other actions not in compliance with the instructions in this manual
Safety Precaution
Warning
This is a Class C3 UPS product for commercial and industrial application in the second environment. Installation
Conformity and standards
The UPS complies with CE 2006/95/EC&93/68/EEC (low voltage safety) and 2004/108/EC, with Australia and New
Multiple power sources
This UPS system receives power from more than one source . Disconnection of all AC sources and the DC source is
circuits that are energized with high DC as well as AC voltages. Check for voltage with both AC
Always observe the following safety symbols!
Used to alert the user to the risk of death or severe injury should the unit be used improperly.
Used to alert the user to the risk of injury or equipment damage should the unit be used improperly.
Used to advise the user to carefully read and observe this unit though it may not cause damage.
This manual contains important instructions that should be followed during installation and operation of
this Emerson APM 300 integrated UPS system (UPS for short).
Read this manual thoroughly before installing, servicing and using the UPS.
The UPS must be commissioned and serviced by trained engineers approved and qualified by the
manufacturer or its agent. Failure to do so could result in personnel safety risk, equipment malfunction
and invalidation of warranty.
The UPS has been designed for commercial and industrial use only, and is not for use in any life support
application.
restrictions or additional measures may be needed to prevent distrubances.
Zealand EMC Framework (C-Tick), and with the following product standards for UPS:
IEC62040-1 general and safety requirements for UPS
IEC62040-2 EMC, class C3
IEC62040-3 performance requirements and test methods
Continued compliance requires installation in accordance with these instructions and the use of manufacturer
approved accessories only.
required before servicing.
This UPS has several
and DC voltmeters before working within the UPS.
Warning: high leakage current
Earth connection is essential before connecting the input supply (including the AC mains and battery). The UPS
Warning: backfeeding protection
This UPS is fitted with a contact closure signal for use with an external automatic disconnect device (supplied by
circuit. A label must be added at the external power disconnect device to warn service personnel that the circuit is
User-serviceable parts
All equipment maintenance and servicing procedures involving internal access requires the use of a tool and
Battery voltage exceeds 400Vdc
All physical battery maintenance and servicing requires the use of a tool or a key and should be carried out only by
Warning
The area around the cover of the monitoring board is a static sensitive area, take anti-static measures when
Warning
When selecting the UPS system pre-stage distribution protection equipment, ensure that it complies with the
must be earthed in accordance with local electrical codes.
Earth leakage current exceeds 3.5mA and is less than 3000mA.
Transient and steady state earth leakage currents, which may occur when the equipment is started, should be
taken into account when selecting instantaneous RCCB or RCD devices.
RCCBs must be selected insensitive to DC unidirectional pulses (Class A) and transient current pulses.
Also note that the earth leakage currents of the load will be carried by this RCCB or RCD.
others) to protect against backfeeding dangerous voltage into the input terminal through the bypass static switch
connected to the UPS. The text of the label has the following meaning: Risk of voltage backfeed! Isolate the UPS,
then check for hazardous voltage between all terminals including the protective earth before working on this
circuit.
should be carried out only by trained professionals. There are no user-serviceable parts behind covers requiring a
tool/special key for removal.
trained personnel.
Take special care when working with the batteries. When connected together, the battery terminal voltage will
exceed 400Vdc and is potentially 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. Attention
should be paid to the recommendations concerning local environmental conditions and the provision of protective
clothing, first aid and fire-fighting facilities.
accessing this area.
local electric regulations.
The specified upstream breakers are required to obtain the conditional short-circuit current rating, Icc at 10kA
symmetrical rms. The specified upstream breakers should comply with an IEC 60947 series standard.
The Manual Covers The Following Equipment
Product
Model
APM 300
Liebert APM 300
Revision Information
V1.0 (August 17, 2011)
Initial release.
V1.1 (April 3, 2014)
Adopt new manual format with options added; add Hazardous Substances Or Elements Announcement in
Appendix 2.
V1.2 (October 10, 2014)
Change the address of Emerson Network Power Co., Ltd.; add Frequency converter mode, Dual bus (LBS)
system mode, and ECO mode in Section 1.5; change Figure 6-5; change the description in Section 7.1.
V1.3 (March 26, 2015)
Modify Figure 2-3 and Figure 5-1.
V1.4 (December 8, 2015)
Add a Warning in Safety Precatuions.
V1.5 (March 10, 2017)
Update Appendix 2.
Contents
Chapter 1 Overview ................................................................................................................................................... 1
1.1 Features......................................................................................................................................................... 1
1.2 Composition .................................................................................................................................................. 1
1.3 Design Concept .............................................................................................................................................. 2
1.3.1 System Design ..................................................................................................................................... 2
1.3.2 Bypass ................................................................................................................................................. 2
1.3.3 System Control Principle ....................................................................................................................... 3
1.3.4 UPS Power Supply Switch Configuration ................................................................................................. 4
1.3.5 Battery Circuit Breaker (BCB) ................................................................................................................. 5
1.4 Parallel System ............................................................................................................................................... 5
1.4.1 Parallel System Features ........................................................................................................................ 5
1.4.2 Parallel System Requirements ................................................................................................................ 6
1.5 Operation Mode ............................................................................................................................................. 6
1.6 Battery Management (Set By Commissioning Engineer) ................................................................................... 9
1.6.1 Normal Function .................................................................................................................................. 9
1.6.2 Advanced Function ............................................................................................................................... 9
1.6.3 Battery Temperature Compensation .....................................................................................................10
1.7 Battery Protection (Set By Commissioning Engineer) ......................................................................................10
Chapter 2 Mechanical Installation .............................................................................................................................11
2.1 Notes ............................................................................................................................................................11
2.2 Preliminary Check .........................................................................................................................................11
2.3 Environmental Requirements ........................................................................................................................11
2.3.1 UPS Location .......................................................................................................................................11
2.3.2 Battery Location ..................................................................................................................................12
2.3.3 Storage ..............................................................................................................................................12
2.4 Positioning ...................................................................................................................................................13
2.4.1 Moving The Cabinet .............................................................................................................................13
2.4.2 Clearances ..........................................................................................................................................13
2.4.3 Cable Entry .........................................................................................................................................13
2.4.4 Final Positioning And Fixing ..................................................................................................................13
2.5 Mechanical Installation ..................................................................................................................................13
2.5.1 Installation drawing .............................................................................................................................13
2.5.2 Mechanical Connection Between Cabinets .............................................................................................14
2.5.3 Installing Power Module .......................................................................................................................15
Chapter 3 Electrical Installation ................................................................................................................................17
3.1 Power Cables ................................................................................................................................................17
3.1.1 System Configuration ..........................................................................................................................17
3.1.2 Maximum Steady State AC And DC Currents ..........................................................................................17
3.1.3 Distance From Floor To UPS Connection Point ........................................................................................18
3.1.4 Notes .................................................................................................................................................18
3.1.5 Power Cable Connecting Terminals .......................................................................................................18
3.1.6 Protection Ground ...............................................................................................................................18
3.1.7 External Protective Device ....................................................................................................................18
3.1.8 Connecting Power Cables .....................................................................................................................19
3.1.9 Connecting External Power Cables ........................................................................................................20
3.2 Control Cables And Communication Cables ....................................................................................................22
3.2.1 Overview ............................................................................................................................................22
3.2.2 Input Dry Contact Port .........................................................................................................................23
3.2.3 BCB Port .............................................................................................................................................23
3.2.4 Maintenance Bypass Switch And Output Switch State Port ......................................................................24
3.2.5 Output Dry Contact Port ......................................................................................................................24
3.2.6 Remote EPO Input Port ........................................................................................................................25
3.2.7 RS485 Port, RS232 Port And Intellislot Port ............................................................................................25
Chapter 4 Operator Control And Display Panel .........................................................................................................26
4.1 Introduction..................................................................................................................................................26
4.1.1 LED Indicators .....................................................................................................................................26
4.1.2 Audible Alarm (Buzzer) ........................................................................................................................27
4.1.3 Control Keys .......................................................................................................................................27
4.1.4 LCD And Menu Keys .............................................................................................................................28
4.2 LCD Screen Types ..........................................................................................................................................28
4.2.1 Start Screen ........................................................................................................................................28
4.2.2 Primary Screen ....................................................................................................................................28
4.2.3 Default Screen ....................................................................................................................................29
4.3 Detailed Description Of Menu Items ...............................................................................................................30
4.4 Prompt Window............................................................................................................................................32
4.5 Alarm List......................................................................................................................................................32
Chapter 5 Operating Instructions ..............................................................................................................................37
5.1 Brief Introduction ..........................................................................................................................................37
5.1.1 Precautions .........................................................................................................................................37
5.1.2 Power Switches ...................................................................................................................................37
5.2 UPS Start-Up Procedures ...............................................................................................................................38
5.2.1 Start-Up Procedures ............................................................................................................................38
5.2.2 Start-Up Procedures Into Battery Mode (Battery Cold Start).....................................................................39
5.3 Procedures For Transfer Between Operation Modes ........................................................................................40
5.3.1 Transfer From Normal Mode To Battery Mode ........................................................................................40
5.3.2 Transfer From Normal Mode To Bypass Mode .........................................................................................40
5.3.3 Transfer From Bypass Mode To Normal Mode .........................................................................................40
5.3.4 Transfer From Normal Mode To Maintenance Mode................................................................................40
5.4 Battery Test Mode Procedures .......................................................................................................................41
5.5 System Test Procedure ..................................................................................................................................42
5.6 UPS Shutdown Procedures .............................................................................................................................42
5.6.1 Procedures For Completely Powering Down UPS ....................................................................................42
5.6.2 Procedures For Completely Powering Down UPS While Maintaining Power To Load ...................................43
5.7 EPO Procedures .............................................................................................................................................43
5.8 UPS Reset Procedures After EPO .....................................................................................................................43
5.9 Automatic Restart .........................................................................................................................................44
5.10 Selecting Language .....................................................................................................................................44
5.11 Changing The Current Date And Time ...........................................................................................................44
5.12 Command Password ....................................................................................................................................44
Chapter 6 Battery ......................................................................................................................................................45
6.1 Introduction..................................................................................................................................................45
6.2 Safety ...........................................................................................................................................................45
6.3 Power Cable ..................................................................................................................................................46
6.3.1 Overview ............................................................................................................................................46
6.3.2 Battery Installation ..............................................................................................................................47
6.3.3 Battery Connection ..............................................................................................................................47
6.4 Reference Current And Connection Of External BCB ........................................................................................48
6.5 Battery Maintenance .....................................................................................................................................50
6.6 Disposal Of The Used Battery .........................................................................................................................50
Chapter 7 Parallel System And Dual Bus System .......................................................................................................52
7.1 Overview ......................................................................................................................................................52
7.2 System Installation Procedures ......................................................................................................................52
7.2.1 Preliminary Checks ..............................................................................................................................52
7.2.2 Cabinet Installation ..............................................................................................................................52
7.2.3 External Protective Device ....................................................................................................................53
7.2.4 Power Cable ........................................................................................................................................53
7.2.5 Parallel Control Cable ...........................................................................................................................53
7.2.6 Remote EPO ........................................................................................................................................54
7.3 Operation Procedures For Parallel System ......................................................................................................55
7.3.1 Startup Procedures In Normal Mode ......................................................................................................55
7.3.2 Maintenance Bypass Procedures ...........................................................................................................56
7.3.3 Isolation Procedures (Of One UPS In A Parallel System)............................................................................56
7.3.4 Insertion Procedures (Of One UPS In A Parallel System) ...........................................................................56
7.3.5 Procedures For Completely Powering Down UPS ....................................................................................57
7.3.6 Procedures For Complete UPS Shutdown While Maintaining Power To Load .............................................57
7.4 Dual Bus System ............................................................................................................................................57
7.4.1 Cabinet Installation ..............................................................................................................................57
7.4.2 External Protective Device ....................................................................................................................58
7.4.3 Power Cable ........................................................................................................................................58
7.4.4 Control Cable ......................................................................................................................................58
Chapter 8 Options .....................................................................................................................................................60
8.1 Option List ....................................................................................................................................................60
8.2 Option ..........................................................................................................................................................60
8.2.1 Bypass Load Sharing Inductor ...............................................................................................................60
8.2.2 Battery Temperature Sensor .................................................................................................................62
8.2.3 Air Filter ..............................................................................................................................................63
8.2.4 SIC Card ..............................................................................................................................................63
8.2.5 Relay Card...........................................................................................................................................64
8.2.6 UF-RS485 Card ....................................................................................................................................67
8.2.7 Modbus Card ......................................................................................................................................68
8.2.8 LBS Cable ............................................................................................................................................68
8.2.9 Parallel Cable ......................................................................................................................................68
Chapter 9 Communication ........................................................................................................................................69
9.1 SNMP Protocol Communication .....................................................................................................................69
9.2 Modbus Protocol Communication ..................................................................................................................69
9.3 Dry Contact Communication..........................................................................................................................69
Chapter 10 Service And Maintenance ........................................................................................................................70
10.1 Safety .........................................................................................................................................................70
10.2 Service Procedures Of Power Module And Bypass Module .............................................................................70
10.2.1 Notes ...............................................................................................................................................70
10.2.2 Service Procedures Of Power Module...................................................................................................70
10.2.3 Standard default procedure (when load transfer to Bypass is allowed) for service the bypass module.........71
10.2.4. Alternate Procedure (When Load transfer to Bypass is not allowed): ......................................................71
10.3 Replacement Procedures Of Air Filter ...........................................................................................................72
10.4 Maintenance Of UPS And Options.................................................................................................................72
Chapter 11 Specifications ..........................................................................................................................................73
11.1 Conformity And Standards ...........................................................................................................................73
11.2 Environmental Characteristics .....................................................................................................................73
11.3 Mechanical Characteristics ..........................................................................................................................73
11.4 Electrical Characteristics (Input Rectifier) .....................................................................................................74
11.5 Electrical Characteristics (Intermediate DC Circuit) .......................................................................................74
11.6 Electrical Characteristics (Inverter Output) ...................................................................................................75
11.7 Electrical Characteristics (Bypass Mains Input) ..............................................................................................76
11.8 Efficiency, Heat Losses And Air Exchange ......................................................................................................76
Appendix 1 Glossary ..................................................................................................................................................77
Appendix 2 Hazardous Substances And Content .......................................................................................................78
This chapter briefly introduces the features, composition, design concept, parallel system, operation mode,
Main power cabinet
Cover
Power module
Switch cabinet
Cover
Bypass module
Adjustable foot
battery management and battery protection of the Liebert APM 300 UPS (UPS for short).
1.1 Features
The UPS is connected between a critical load (e.g. a computer) and mains power to provide high quality power
for the loads. The UPS has the following advantages:
Increase power quality
The UPS protects its output against the input power change through the internal voltage and frequency
controller.
Improve noise rejection
Due to the application of AC-DC-AC conversion mode, the noise in the input power is effectively filtered, and
the load gets clean power supply.
Provide mains failure protection
If the input power fails, the UPS will work in battery mode, and the power supply to the loads will not be
interrupted.
Chapter 1 Overview 1
Chapter 1 Overview
1.2 Composition
The UPS consists of a main power cabinet and a switch cabinet. The cabinets use steel framework structure
enclosed by removable panels, with the top panels and side panels fixed by screws. The UPS structure is shown
in Figure 1-1. The UPS component configuration is provided in Table 1-1.
Figure 1-1 UPS structure
APM 300 Integrated UPS Single Module And Parallel System User Manual
2 Chapter 1 Overview
Component
Quantity (pcs)
Remark
Main power cabinet
1
Standard component
Switch cabinet
1
Standard component
Bypass module
1
Standard component
Power module
1
~
10
Mandatory option. Installed at site
Input
Maintenance bypass switch
Bypass input switch
Rectifier input switch
Bypass input
Mains input
Battery charger
Output switch
Automatic inverter s witch
Inverter
Rectifier
Static switch
Maintenance bypass
UPS output
Battery
Output
Input
Output
Bypass input
Mains input
Rectifier input switch
Rectifier
Maintenance bypass switch
Bypass input switch
Battery
Battery charger
Inverter
Static switch
Automatic inverter switch
Maintenance bypass
Output switch
UPS output
1.3 Design Concept
1.3.1 System Design
As shown in Figure 1-2, the AC mains source is converted by the rectifier into DC power. The inverter converts
that DC power from the rectifier or the DC power from the battery into AC power, and provides the AC power
for the load. The battery powers the load through the inverter in the event of a power failure. When the
inverter is faulty or turned off, the mains source can also power the load through the static bypass.
Tabl e 1-1 UPS component configuration
If UPS maintenance or repair is necessary, the load can be transferred to the maintenance bypass without
power interruption.
1.3.2 Bypass
The circuit block labeled static switch in Figure 1-2 contains an electronically controlled switching circuit that
enables the load to be connected to either the inverter output or to a bypass power source through the static
bypass line. During normal system operation, the load is connected to the inverters; but in the event of a UPS
overload or inverter failure, the load is automatically transferred to the static bypass line.
During normal operating conditions, the inverter output and bypass supply must be fully synchronized so as to
achieve a clean (no-break) load transfer between the inverter output and static bypass line. The
synchronization between the inverter output and static bypass is achieved through the inverter control
electronics, which make the inverter frequency track that of the static bypass supply, provided that the bypass
remains within an acceptable frequency window.
Figure 1-2 System schematic diagram
APM 300 Integrated UPS Single Module And Parallel System User Manual
A manually controlled, maintenance bypass supply is incorporated into the UPS design. It enables the critical
Note
When the UPS is operating in bypass mode or on maintenance bypass, the connected equipment is not protected from
load to be powered from the maintenance bypass supply while the UPS is shut down for routine maintenance
and repair.
power failures or surges and sags.
1.3.3 System Control Principle
Normal operation
Normal mode: It means that the UPS has normal input mains, the rectifier and inverter operate normally, the
load is supplied by the inverter, and the battery is in stable floating charge state.
(Pa ral l el Sys tem)
Note: As each UPS module outputs are connected in parallel, the system checks that the
inverter control circuits are perfectly synchronized with one another and with the bypass in terms of both
frequency and phase, and that they have the same output voltages. Current supplied to the load is
automatically divided among UPSs. A warning message appears while synchronization is in progress.
Mains abnormal
Chapter 1 Overview 3
When the mains fails or is abnormal, the rectifier will stop working automatically, and the system will transfer
to battery output (through inverter). The length of the operation time in battery mode depends on the load
and the battery capacity. During this period, if the battery voltage falls to the EOD voltage and the mains still
has not been recovered, the inverter will stop working automatically, and the UPS operator control and display
panel will display corresponding alarm messages.
Mains recovery
When the mains resumes normal within allowable time, the rectifier will start automatically (at this time its
output power will increase gradually) and supply the load and charge the battery again. Therefore, the power
supply to the load will not be interrupted.
Battery disconnection
If the battery system is taken out of service for maintenance, it is disconnected from the rectifier/charger and
inverters by means of a battery switch. The UPS shall continue to function and meet all of the specified
steady-state performance criteria, except for the power outage back-up time capability.
UPS module failure
In case of inverter failure, automatic inverter switch failure, output fuse blowout and bypass STS failure, the
load will automatically transfer to the bypass, and the output power supply will not be interrupted. In this
situation, please contact the local customer service center of Emerson Network Power Co., Ltd for technical
support.
(Pa ral l el Sys tem)
In the event of a fault in a UPS module, it will automatically exit from the parallel system. If
the system is still capable of providing the required load, the remaining modules will continue to supply the
load with no interruption. If the remaining modules are no longer capable of fulfilling power requirements, the
load will automatically transfer to the bypass.
Overload
If the inverter is overloaded or the inverter current remains outside the specifications (refer to Table 11-6)
longer than the specified time, the load will automatically transfer to the bypass without power interruption. If
both the overload and the current are reduced to a level within the specified range, then the load will be
transferred back to the inverter. In case of output short circuit, the load will be transferred to the bypass, and
APM 300 Integrated UPS Single Module And Parallel System User Manual
4 Chapter 1 Overview
Warning
The internal maintenance bypass must NOT be used when the UPS system is comprised of more than two UPS modules
Bypass input
Shorting copper bar
of common input
configuration
Mains input
Rectifier input
switch Q1
Rectifier Inverter
Automatic
inverter switch
Output
switch Q5 UPS Output
Static switch
Maintenance switch Q3
Battery
charger
BCB
Battery
Bypass input switch Q2
Maintenance bypass switch Q3
the inverter will shut down. Five minutes later, the inverter will start up automatically. If the short circuit is
removed at this point, the load will be transferred back to the inverter. The transfer is determined first of all by
the features of the protective device of the system.
In the above two situations, the UPS operator control and display panel will display alarm messages.
(Pa ral l el Sys tem)
The control logic system constantly monitors load requirements and controls the power
supplied by the two UPS modules. In the event that an overload condition is sustained for greater than a preset
time, the load will transfer to the bypass, when the number of active modules is unable to satisfy load
requirements. The load returns to the inverter if the power is reduced to a value that can be sustained by the
number of active modules in the system.
Maintenance bypass
The UPS has a second bypass circuit, i.e. maintenance bypass, which provides a safe working environment for
the engineers to provide regular maintenance or repair to the UPS system and at the same time provide
unregulated mains supply to the loads. The maintenance bypass can be manually selected through the
maintenance bypass switch, and it can be disconnected by turning the switch to OFF.
in parallel.
1.3.4 UPS Power Supply Switch Configuration
Figure 1-3 describes the block diagram of the UPS module. The UPS has split bypass configuration (that is, the
bypass adopts independent mains input) and common source configuration. In split bypass configuration,
the static bypass and maintenance bypass share the same independent bypass power supply. Where a
separate power source is not available, the input supply connections of the bypass input switch (Q2) and
rectifier input switch (Q1) would be linked together (linked before delivery) to make the bypass input and
rectifier input use mains power of the same route.
During the normal operation of the UPS, except for the maintenance bypass switch Q3, other switches shall be
closed.
APM 300 Integrated UPS Single Module And Parallel System User Manual
Figure 1-3 UPS power supply switch configuration
1.3.5 Battery Circuit Breaker (BCB)
Qin UPS 1
Qin UPS 2
Qout UPS 1
Qout UPS 2
UPS 1 output UPS 2 output
L1, L2, L3L1, L2, L3
NN
Supplied by others
Input mains supply
L1, L2, L3, N
Charger
Rectifier
STS
Inverter
Input mains supply
L1, L2, L3, N
Charger
Rectifier
Inverter
STS
UPS 2 output distribution
unit 0~2 pcs
L1, L2, L3, N L1, L2, L3, N
UPS 1 output distribution
unit 0~2 pcs
UPS 1 output distribution UPS 2 output distribution
The external battery shall be connected to the UPS through the BCB. The BCB box is an option, which shall be
installed near the battery. The BCB is closed manually or electrically. The BCB has undervoltage tripping coil.
Upon the battery undervoltage, the UPS control circuit will send a signal to the coil to trip the BCB. It also has a
magnetic trip facility for overload protection.
1.4 Parallel System
As shown in Figure 1-4, two UPS modules can be parallel-connected to form a parallel system to increase the
system capacity or reliability, or both. The load is equally shared between the paralleled UPSs.
Chapter 1 Overview 5
Figure 1-4 Parallel system
1.4.1 Parallel System Features
1. The hardware and software of parallel system are completely the same as those of single UPS module. The
parallel configuration is achieved through settings in configuration software. The parameter settings of each
UPS module in parallel system should be the same.
2. Parallel control cables are connected in a ring, providing both system reliability and redundancy. Dual bus
control cables are connected between any two UPS modules of each bus. The intelligent parallel logic provides
the user with maximum flexibility. For example, shutting down or starting up UPS modules in a parallel system
can be done in any sequence. Transfers between normal and bypass modes of operation are synchronized and
self-recoverable, for example, following overloads and their clearance.
3. The total load of the parallel system can be queried from each UPS module's LCD.
APM 300 Integrated UPS Single Module And Parallel System User Manual
6 Chapter 1 Overview
Rectifier input switch
Mains input
Battery charger
Output switch
Inverter
Rectifier
UPS output
Battery
Automatic inverter s witch
Mains input
Rectifier input switch
Rectifier
Battery Battery charger
Inverter
Automatic inverter switch
Output switch
UPS output
1.4.2 Parallel System Requirements
A UPS system consisting of two paralleled UPS modules behave as if it were one large UPS with the advantage
of presenting higher reliability. To ensure that all modules are equally used and to comply with relevant wiring
rules, the following requirements apply:
1. All UPS modules must be of the same rating and must be connected to the same source.
2. Any RCD, if installed, must be of an appropriate setting and located upstream of the common neutral
bonding point. Alternatively, the device must monitor the protective earth current of the system. Refer to
Warning: high leakage current before Contents.
3. The outputs of the two UPS modules must be connected to a common output bus.
1.5 Operation Mode
The UPS is an on-line, double-conversion, reverse-transfer UPS that permits operation in these modes:
Normal mode
Battery mode
Automatic restart mode
Bypass mode
Maintenance mode (manual bypass)
ECO mode
Parallel and redundancy mode
Dormancy mode
Common battery mode
Frequency converter mode
Dual bus (LBS) system mode
Normal mode
As shown in Figure 1-5, the UPS rectifiers derive power from the AC mains input source and supply DC power
to the inverters, which continuously supply the AC load. Simultaneously, the charger, which derives power
from the rectifiers, float or boost charges the associated backup battery of the UPS.
Figure 1-5 Schematic diagram of normal mode
Battery mode
As shown in Figure 1-6, the UPS is operating in battery mode when the battery is supplying backup power to
the load through the inverters. Upon mains failure, the UPS automatically transfers to battery mode without
power interruption to the load. Upon restoration of the AC mains, the UPS automatically transfers back to
normal mode without the necessity of user intervention, without power interruption to the load.
APM 300 Integrated UPS Single Module And Parallel System User Manual
Chapter 1 Overview 7
Output switch
Inverter
Rectifier
UPS output
Battery
Automatic inverter s witch
Rectifier Inverter
Automatic inverter switch
Output switch
UPS output
Battery
Bypass input switch
Bypass input
Static switch
Output switch
UPS output
Bypass input
Bypass input switch
Static switch
Output switch
UPS output
Maintenance bypass switch
Bypass input
Maintenance bypass
UPS output
Bypass input
Maintenance bypass switch
Maintenance bypass
UPS output
Warning: risk after load transfer to maintenance bypass
After the UPS is transferred to maintenance bypass, the power modules and bypass module are inoperative and the LCD
input SPD shows that the UPS has mains input, but the output terminals
Figure 1-6 Schematic diagram of battery mode
Note: Battery start function is available for switching the UPS on into Battery (charged) mode directly during
mains failure. Thus, the battery power can be used independently to increase the UPS utility.
Automatic restart mode
The battery becomes exhausted following an extended AC mains failure. The inverters shut down when the
battery reaches the EOD voltage. The UPS can be programmed to automatic restart after EOD after a set
variable delay time. This mode and any delay time are programmed by the commissioning engineer.
During the delay time before automatic restart, the UPS charges the battery so as to avoid power interruption
to load in case of a following power failure.
In case the UPS is not programmed to automatic restart, you can use the FAULT CLEAR key to manually start
the UPS.
Bypass mode
As shown in Figure 1-7, during normal mode operation, if the inverters fail, are overloaded or turned off, the
static switch will perform a transfer of the load from the inverters to the bypass source, with no interruption in
power to the load. Should the inverters be asynchronous with the bypass, the static switch will perform a
transfer of the load from the inverters to the bypass, with interruption in power to the load. This is to avoid
paralleling of unsynchronized AC sources. This interruption is programmable but typically set to be less than
3/4 of an electrical cycle, for example, less than 15ms (50Hz) or less than 12.5ms (60Hz).
Figure 1-7 Schematic diagram of bypass mode
Maintenance mode
As shown in Figure 1-8, if UPS maintenance or repaired is needed, you may use the manual maintenance
bypass switch to transfer the load to the maintenance bypass, with no interruption in power to the load.
Figure 1-8 Schematic diagram of maintenance mode
has no display, only the green indicator of the
corresponding to closed output distribution switches and the neutral bars are energized.
APM 300 Integrated UPS Single Module And Parallel System User Manual
8 Chapter 1 Overview
市电输入
整流器
逆变器
电池
电池充电器
UPS输出
输入开关
逆变自动开关
Mains input
Input switch
Rectifier Inverter
Automatic
inverter switch
Output switch
Static switch
Charger
Battery
UPS output
Static switch
Rectifier
Inverter
Automatic
inverter switch
UPS output
Output switch
ChargerBattery
Mains input
Input switch
Warning
In ECO mode the load is not protected against mains distortion.
Note
ECO mode
As shown in Figure 1-9, in ECO mode, except for the maintenance bypass switch, all power switches and the
BCB are closed, the system prefers to put the load on the bypass mains to save energy. When the bypass
frequency and voltage are in normal range (settable), the load is supplied by the bypass, with the inverter on
standby. When the bypass frequency and voltage are beyond the normal range, the system will transfer to the
inverter. In ECO mode, the battery is normally charged by the charger.
Figure 1-9 Schematic diagram of ECO mode
The ECO mode configuration requires a different setup in the default menu configuration through the
operator control and display panel.
Operating procedures in ECO mode are the same as those described in Chapter 5 Operating Instructions,
except that the load is normally on the bypass mains, the Inverter LED is normally off, and the corresponding
alarm message 'Bypass mode' will appear on the LCD.
Parallel redundancy mode
For higher capacity or higher reliability or both, the outputs of two UPS modules can be programmed for
direct paralleling while a built-in parallel controller in each UPS ensures automatic load sharing.
Dormancy mode
Dormancy mode is designed to maximize the number of the dormant power modules while ensuring load
power, which brings the system efficiency to the greatest extent. The dormancy mode is configured by the
commissioning engineer through the background software. This mode has the following restrictions on the
power module addresses: When there are five power modules, the power module addresses should be 1, 2, 3,
4 and 5 in turn; when there are four power modules, the power module address should be 1, 2, 3 and 4 in turn;
when there are three power modules, the power module addresses should be 1, 2 and 3 in turn; when there
are two power modules, the power module addresses should be 1 and 2 in turn.
In dormancy mode, sudden load change should be avoided, which may cause UPS transfer to bypass mode.
APM 300 Integrated UPS Single Module And Parallel System User Manual
Chapter 1 Overview 9
Note
Common battery mode
Common battery function means that in UPS paralleling, the UPS modules can share a battery string to save
cost and space and improve efficiency.
Batteries of different manufacturers, models or used time cannot be used together.
Frequency converter mode
The UPS can be programmed into frequency converter mode for either 50Hz or 60Hz stable output frequency.
The input frequency may vary from 40Hz to 70Hz. In this mode, it is required to open the maintenance bypass
switch to disable the static bypass operation, and the battery becomes optional depending on any
requirement to operate in battery mode.
Dual bus (LBS) system mode
A dual bus system consists of two independent UPS single unit systems. The dual bus system has high
reliability and is suitable for load with multiple inputs. For single input load, an optional STS can be installed to
power the load. For the operation principle diagram of the dual bus system mode, see Figure 7-5.
1.6 Battery Management (Set By Commissioning Engineer)
1.6.1 Normal Function
1. Constant current boost charge.
The charge current can be set.
2. Constant voltage boost charge.
The boost charge voltage can be set as required by the type of battery.
For VRLA batteries, the maximum boost charge voltage should not exceed 2.4V/cell.
3. Float charge.
The float charge voltage can be set as required by the type of battery.
For VRLA batteries, the float charge voltage should be between 2.2V/cell and 2.3V/cell.
4. Float charge temperature compensation (optional).
The temperature compensation coefficient can be set as required by the type of battery.
5. EOD protection.
When the battery voltage drops to the EOD voltage, the battery converter shuts down automatically and the
battery is isolated to avoid further battery discharge. The EOD voltage is settable from 1.6V/cell to 1.75V/cell
(VRLA) or 0.9V/cell to 1.1V/cell (NiCd).
6. Battery low pre-warning time.
The battery low pre-warning time is adjustable between 3min and 60min. The default setting is 5min.
1.6.2 Advanced Function
The UPS provides battery maintenance test function. Battery maintenance test is also called as battery
self-test. At periodic intervals, 20% of the rated capacity of the battery will be discharged automatically, and
the actual load must exceed 20% of the UPS nominal capacity. If the load is less than 20%, the automatic
discharge cannot be executed. The periodic interval can be set from 30 to 360 days. The battery self-test can
be disabled.
Conditions: battery at float charge for at least 5h, load equal to 20%
~ 80% of rated UPS capacity.
APM 300 Integrated UPS Single Module And Parallel System User Manual
10 Chapter 1 Overview
Trigger: manually through the command of Battery Maintenance Test on LCD or automatically.
Interval: 30 days ~
360 days (default setting: 60 days).
1.6.3 Battery Temperature Compensation
The UPS system has battery charge temperature compensation function. When the ambient temperature is
increased, the DC bus voltage (which charges the battery) will be reduced correspondingly to provide optimal
charging voltage for the battery, thus prolonging the battery service life time.
This function must be used together with the Emerson battery temperature detection device (a standard
option).
1.7 Battery Protection (Set By Commissioning Engineer)
Battery low pre-warning
The battery low pre-warning occurs before the EOD. After this pre-warning, the battery should have the
capacity for three remaining minutes discharging with full load. The time can be configured from 3min to
60min.
EOD protection
When the battery voltage drops to the EOD voltage, the battery converter shuts down. The EOD voltage is
adjustable from 1.6V/cell to 1.75V/cell (VRLA) or 0.9V/cell to 1.1V/cell (NiCd).
BCB open alarm
This warning occurs when the BCB opens. The battery is connected to the UPS through the BCB, which is
manually closed and electronically tripped by the UPS control circuits.
APM 300 Integrated UPS Single Module And Parallel System User Manual
This chapter introduces the installation of the UPS, including the notes, preliminary check, environmental
Warning: professional installation required
1. Do not apply electrical power to the UPS before being authorised to do so by the commissioning engineer.
Note: 3-phase, 5-wire input supply required
The standard UPS is suitable for connection to 3-phase, 5-wire (A, B, C, N, PE) TN and TT AC power distribution systems
Warning: battery danger
Take special care when installing batteries. When connecting batteries, the battery terminal voltage will reach 320Vdc,
considerations, mechanical considerations, and installation drawings.
2.1 Notes
This chapter describes the requirements that must be taken into account when installing the UPS equipment.
Because each site has its particular characteristics, this chapter does not provide the detailed installation steps,
it only acts as a guide for the general procedures and practices that should be observed by the installing
engineer, so that they can properly handle the specific situation of the site.
2. The UPS shall be installed by a qualified engineer in accordance with the information contained in this manual.
Chapter 2 Mechanical Installation 11
Chapter 2 Mechanical Installation
(IEC60364-3).
which is fatal to human being.
1. Please wear safety glasses to protect the eyes from being damaged by arc.
2. Remove all the metal items, including finger rings, watch, etc.
3. Use tools with insulated handle.
4. Wear insulating gloves.
5. If the battery has electrolyte leakage or the battery is damaged, it must be replaced. Place the battery into the
container that can withstand sulfuric acid and dispose of it according to the local regulations.
6. If the skin contacts the electrolyte, flush it with water immediately.
2.2 Preliminary Check
Before installing the UPS, carry out the following preliminary checks:
1. Visually examine the UPS for shipping damage, both internally and externally. Report any damage to the
shipper immediately.
2. Verify that the correct UPS is being installed. The UPS has an identification tag on the back of the front door
reporting the model, capacity and parameters of the UPS.
2.3 Environmental Requirements
2.3.1 UPS Location
For optimal design life, the place chosen must offer:
Easy connection
APM 300 Integrated UPS Single Module And Parallel System User Manual
12 Chapter 2 Mechanical Installation
Note
The UPS is suitable for mounting on concrete or other non-combustible surface only.
Warning
During storage, periodically charge the battery according to the battery manufacturer instructions. In the charge
Enough space to easily work on the UPS
Sufficient air exchange to dispel heat produced by UPS
Protection against atmospheric agents
Protection against excessive humidity and high heat sources
Protection against dust
Compliance with the current fire prevention requirements
Operating environment temperature between 20°C and 25°C. The batteries are at maximum efficiency
in this temperature range
The UPS is intended for indoor installation and should be located in an environment with clean air and with
adequate ventilation to keep the ambient temperature within the specified operating range.
The UPS is air-cooled with the aid of internal fans. Cold air enters the UPS through the ventilation grilles in the
front of the cabinet and hot air is released through the grilles on the back. Do not cover the ventilation
openings.
If necessary, install a system of room extractor fans to avoid room temperature build-up. Optional air filters
are available if the UPS is to operate in a dusty environment.
2.3.2 Battery Location
The batteries will generate small amount of hydrogen and oxygen at the end of battery charge. Therefore,
make sure that the new air ventilation amount in the battery room meets the EN50272-2001 requirement.
Batteries should be mounted in an environment where the temperature is consistent and even over the whole
battery. Temperature is a major factor in determining the battery life and capacity. Typical battery
manufacturer performance data are quoted for an operating temperature of 20
reduce the battery life while operation below 20
battery operating temperature increases from 20°C to 30°C, the battery life will be reduced by 50%; provided
that the average battery operating temperature is above 40
exponential multiple. In a normal installation the battery temperature is maintained between 15
Keep batteries away from main heat sources and main air inlets.
The UPS uses external batteries, a battery protection device (for example, fuses or circuit breakers) must be
mounted as close as possible to the batteries themselves, and connected using the most direct route possible.
2.3.3 Storage
Should the UPS not be installed immediately, it must be stored in a room for protection against excessive
humidity and heat sources. The batteries should be stored in a dry, cool environment with adequate
ventilation, at temperature ranging from 20
°C. Operating above 20°C will
°C will reduce the battery capacity. Provided that the average
°C, the battery life will be reduced by an
°C and 25°C.
°C to 25°C at best.
process, temporarily connect the UPS to the mains for the time required for recharging the battery to activate the
battery.
APM 300 Integrated UPS Single Module And Parallel System User Manual
2.4 Positioning
Warning
1. Ensure that any equipment used to move the UPS has sufficient lifting capacity. For the UPS weight, refer to
2. The UPS is fitted with casters. Take care to prevent the cabinet from moving when unbolting the cabinet from the
et can be pushed forward or backward only. Pushing it sideward is not allowed. When pushing the cabinet,
Important
Fixing the UPS to the installation surface through the anchor holes on the UPS base is mandatory.
2.4.1 Moving The Cabinet
Table 11-3.
shipping pallet. Ensure that adequate personnel and lifting aids are available when removing the shipping pallet.
3. The UPS casters are just strong enough for cabinet moving on flat surface. They may not function well when you
move the cabinet on uneven surface.
4. The cabin
take care not to overturn it as the gravity center is high.
The UPS can be moved by a forklift or similar equipment. It can also be moved short distances by its casters.
2.4.2 Clearances
The UPS has no ventilation grilles at either side, therefore, no clearance is required at either side.
The component layout of the UPS supports front access and rear access in UPS service, diagnosis and repair. To
enable routine tightening of power terminations within the UPS, in addition to meeting any local regulations,
it is recommended to provide adequate clearance in the front and at the back of the cabinet for unimpeded
passage of personnel with the front and back doors fully opened.
Chapter 2 Mechanical Installation 13
2.4.3 Cable Entry
The UPS uses top cable entry and bottom cable entry, with cable entry holes provided both at the bottom and
on the top of the UPS.
2.4.4 Final Positioning And Fixing
After final positioning, fix the UPS directly on the installation surface through the anchor holes on the UPS
base. Figure 2-1 shows the UPS installation dimensions.
2.5 Mechanical Installation
2.5.1 Installation drawing
Refer to Figure 2-1 for the UPS installation dimensions.
APM 300 Integrated UPS Single Module And Parallel System User Manual
14 Chapter 2 Mechanical Installation
2000
1100
Front view
Main power
cabinet
Switch cabinet
Side view
1100
1200
1930
300
600
Main power
cabinet
Switch
cabinet
Front door
Front view
(front door and back door open)
Main power
cabinet
Switch cabinet
Bottom view
Back door
Cover
Cover
2000
300
1930
600
1100
1200
1100
Front view Side view
Cover
Cover
Main power
cabinet
Switch
cabinet
Front door
(front door and back door open)
Main power
cabinet
Switch cabinet
Bottom view
Front view
Back door
Main power
cabinet
Switch cabinet
Note
Replace the cover at the front of the switch cabinet after connecting the parallel power cables. Refer to 3.1.8
Figure 2-1 UPS installation dimensions (unit: mm)
2.5.2 Mechanical Connection Between Cabinets
The UPS consists of a main power cabinet and a switch cabinet. The two cabinets are shipped separately and
should be connected mechanically at site. The connection procedures are as follows:
1. Place the main power cabinet and switch cabinet closely side by side, with the main power cabinet on the
left side and the switch cabinet on the right side, as shown in Figure 2-2.
2. Adjust the two cabinets to the same height and fix them securely in the position by adjusting the adjustable
feet (see Figure 1-1).
3. Open the front door of the switch cabinet and remove the cover (see Figure 2-2) at the front.
Connecting Power Cables.
4. Connect the cabinets with screws: There are two screw holes for cabinet connection (see Figure 2-2) in the
same positions of each beam (totally three beams) on the right side of the main power cabinet. In the
corresponding positions on the left side of the switch cabinet, there are also three beams; and in the same
APM 300 Integrated UPS Single Module And Parallel System User Manual
Chapter 2 Mechanical Installation 15
Right side
Screw hole for cabinet connection
Beam
Right side
DIP switch
Ready switch
Fixing hole
A Amplified view
Dummy plate
Power module
A
positions of each beam, there are also two screw holes for cabinet connection. Use the accessory M8 × 20
screws to connect the two cabinets through these screws holes, and tighten the connections to 13N.m.
2.5.3 Installing Power Module
The installation positions of the power modules are shown in Figure 2-3. Install the power modules from
bottom to top to avoid cabinet tipping due to high gravity center.
Refer to Figure 2-3, and use the following procedures to install the power module:
Figure 2-2 Screw holes for cabinet connection on main power cabinet
Figure 2-3 Installing power module
APM 300 Integrated UPS Single Module And Parallel System User Manual
Loading...