User Manual – 30 - 150kW, Single Module and Parallel System
AC Power
For Business-Critical Continuity®
This Manual Involves The Following Parts, Components and Software.
Part Part Number Remark
LIEBERT APM UPS APMxxxyabcd00
Modular Battey Cabinet
Battery Module
Battery temperature sensor (for external battery) APMA0UFXBTS
Parallel or Dual Bus control cable (5, 10, and 15m) APMxxMCABLE
SNMP Card
RS485 Card
Relay card
APMMOBACAB
APMBATMODF
IS-WEBLB
IS-485L
IS-RELAY
xxx; y, a, b, c, d according to
ratings/options
Classified according to length (m),
xx = {05,10,15}
Safety Precautions
This manual contains information concerning the installation and operation of Emerson LIEBERT APM UPS .
Please carefully read this manual prior to installation.
The LIEBERT APM UPS cannot be put into operation until it is commissioned by engineers approved by the
manufacturer (or its agent).. Not doing so could result in personnel safety risk, equipment malfunction and
invalidation of warranty.
The UPS has been designed for commercial or industrial use only, and is not intended for use in any life support
application.
This is a CLASS A Uninterruptible Power Supply (UPS) product. In a domestic environment, this product may
cause radio interference, in which case, the user may be required to take additional measures.
Conformity and standards
This product complies with CE2006/95/EC (low voltage safety) and 2004/108/EC (EMC), and EMC standards of Australia
and New Zealand (C-Tick), and the following UPS product standards:
*IEC62040-1 General and safety requirements for UPS
*IEC/EN62040-2 EMC requirements CLASS A
For more details, refer to Chapter 9 .
Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved
accessories only.
WARNING: high earth leakage current
Earth connection is critical before connecting the input supply (include both utility supply and battery).
"Earth leakage current introduced by the UPS, in any configuration from 30kW to 150kW, exceeds 3.5 mA and is less than
1000 mA and complies with the requirements of IEC/EN 62040-1 / IEC/EN 60950-1" Transient and steady-state earth
leakage currents, which may occur when starting the equipment, should be taken into account when selecting instantaneous
RCCB or RCD devices.
Residual Current Circuit Breakers ( RCCBs) must be selected sensitive to DC unidirectional pulses (class A) and insensitive
to transient current pulses.
Note also that the earth leakage currents of the load will be carried by this RCCB or RCD.
This equipment must be earthed in accordance with local electrical authority codes of practice.
WARNING: backfeeding protection
This system has a control signal available for use with an automatic device, externally located, to protect against
backfeeding voltage through the mains Static Bypass circuit.If this protection is not used with the switchgear that is used to
isolate the bypass circuit, a label must be added to the switchgear to advise service personnel that the circuit is connected to
a UPS system.
The text has the following meaning or is equivalent to: Risk of Voltage Backfeed: Before working on this circuit, Isolate
Uninterruptible Power System (UPS), then check for Hazardous Voltage between all terminals including the protective earth.
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 General and safety requirements for 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 SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED WITH THIS EQUIPMENT.
WHEN CONNECTED TOGETHER, THE BATTERY TERMINAL VOLTAGE WILL EXCEED 400Vdc AND IS POTENTIALLY
LEATHAL.
Battery manufacturers supply details of the necessary precautions to be observed when working on, or in the vicinity of, a
large bank of battery cells. These precautions should be followed implicitly at all times. Particular attention should be paid to
the recommendations concerning local environmental conditions and the provision of protective clothing, first aid and
fire-fighting facilities.
Contents
Chapter 1 Installation of UPS Rack Unit.............................................................................................................................. 6
1.4.1 System Cabinet ......................................................................................................................................... 8
1.4.2 Mooving The Cabinets............................................................................................................................... 8
1.4.3 Transporting The Cabinets ........................................................................................................................ 8
1.4.4 Clearances Required For Operating .......................................................................................................... 8
1.4.5 Front Access.............................................................................................................................................. 8
1.4.6 Final Positioning ........................................................................................................................................ 8
1.4.7 Installation Of Adjustable Feet................................................................................................................... 8
1.6 Power Cables...................................................................................................................................................... 13
1.7 Control Cabling And Communication .................................................................................................................. 15
1.7.1 Input and Output Interfaces ..................................................................................................................... 15
1.7.2 Back Feed Protection Interface (J5) ........................................................................................................ 15
1.7.4 Other input Interface (J7)......................................................................................................................... 16
1.7.5 Battery temperature sensor Interface (J8) ............................................................................................... 17
1.7.6 Internal and External Maintenance Bypass Interface (J9) ....................................................................... 18
1.7.7 EPO Input Port (J10) ............................................................................................................................... 18
1.7.8 Other Interfaces....................................................................................................................................... 19
2.1 General Recommendations ................................................................................................................................ 20
Chapter 3 Installation Of a Parallel USP Rack System ..................................................................................................... 24
3.2 UPS Rack Systems In Parallel System ............................................................................................................... 24
3.2.1 Installation Of Cabinet ............................................................................................................................. 24
3.2.3 Power Cables .......................................................................................................................................... 25
3.2.4 Control Cables......................................................................................................................................... 25
3.3 Dual-Bus System ................................................................................................................................................ 26
3.3.3 Power Cables .......................................................................................................................................... 26
3.3.4 Control Cables......................................................................................................................................... 26
5.1.2 Static Transfer Switch.............................................................................................................................. 38
5.2 1+N Parallel System ........................................................................................................................................... 38
5.2.1 Features Of Parallel System.................................................................................................................... 38
5.2.2 Parallel Requirements Of UPS Rack Systems ........................................................................................ 39
5.3.1 Normal Mode ........................................................................................................................................... 40
5.3.2 OFF Mode ............................................................................................................................................... 42
5.4 Battery Management—Set During Commissioning............................................................................................. 42
5.4.1 Normal Function ...................................................................................................................................... 42
5.4.2 Advanced Functions (Software Settings Performed By The Commissioning Engineer) .......................... 42
5.5 Battery Protection (Settings By Commissioning Engineer) ................................................................................. 42
6.1.1 Power Switches ....................................................................................................................................... 44
6.7 Auto Start............................................................................................................................................................ 47
6.9 UPS Power Walk in feature ................................................................................................................................ 47
6.10 Operation Instruction For Power Module Maintenance ..................................................................................... 48
6.11 Language Selection .......................................................................................................................................... 49
6.12 Changing The Current Date And Time.............................................................................................................. 49
6.13 Control Password.............................................................................................................................................. 50
Chapter 7 Operator Control And Display Panel................................................................................................................. 51
7.1.1 Mimic Current Path.................................................................................................................................. 51
7.1.4 LCD And Menu Buttons ........................................................................................................................... 52
7.2 Selecting Language ............................................................................................................................................ 54
7.3 Changing The Current Date And Time................................................................................................................ 54
7.4 Control Password................................................................................................................................................ 54
7.5 Detailed Description of Menu Items .................................................................................................................... 55
7.6 UPS Event And Alarm List .................................................................................................................................. 57
Appendix 1 Information for the protection of the Environment........................................................................................... 67
This chapter introduces the relevant requirements for positioning and cabling of the LIEBERT APM UPS Rack
System and related equipment.
Because each site has its requirements, it is not the aim of this chapter to provide step-by-step installation
instructions, but to act as a guide for the general procedures and practices that should be observed by the installing
engineer.
Do not apply electrical power to the UPS equipment before the commissioning engineer arrives at installation site.
The UPS should be installed by a qualified engineer in accordance with the information contained in this chapter. All the
equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation information.
The standard LIEBERT APM UPS system of Emerson can be connected to TN, TT and IT AC distribution system (IEC60364-3)
of 3-phase 4-wire, and a 3-wire to 4-wire conversion transformer is provided as an optional part.If the system is connected to IT AC
distribution system, its input needs to be fitted with a 4-pole circuit breaker in accordance with relevant IT system standard.
Chapter 1 Installation Of UPS Rack System 6
Warning: installation can only be done by authorized engineers
Note: 3-Phase 4-Wire Input Power is required
SPECIAL CARE SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED 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.
Only use tools with insulated handles.
Wear rubber gloves.
If a battery leaks electrolyte, or is otherwise physically damaged, it must be replaced, stored in a container resistant to sulfuric acid
and disposed of in accordance with local regulations.
If electrolyte comes into contact with the skin, the affected area should be washed immediately with water.
1.2 Initial Checking
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.
1.3 Location
1.3.1 UPS Location
WARNING: battery hazards
The UPS is intended for indoor installation and should be located in a cool, dry and clean environment with adequate
ventilation to keep the environmental parameters within the specified operating range (see Tab. 9-2).
The LIEBERT APM series UPS uses forced convection cooling by internal fans. Cooling air enters the module
through ventilation grills located at the front part of the cabinet and exhausted through grills located in the rear part of
the cabinet. Please do not block the ventilation holes.
If necessary, 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.
The cooling capacity of air conditioner should be selected according to the power loss data of UPS specified in Tab.
9-3: Normal mode (VFI SS 111 double-conversion UPS)
Note: The UPS should be installed on a cement surface or other surface that is not combustible.
1.3.2 External Battery Room
The battery will generate some amount of hydrogen and oxygen at the end of charging, so the fresh air volume of the
battery installation environment must meet EN50272-2001 requirements.
The 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. Operating 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, the battery circuit breakers (or fuses) must be mounted as close as possible to
the batteries, and the connecting cables should be as short as possible.
Chapter 2 Battery installation 7
1.3.3 Storing
Should the equipment not be installed immediately, it must be stored in a room so as to protect it Protection from
excessive humidity and heat sources (see Tab. 9-2).The battery needs to be stored in dry and cool place with good
ventilation. The most suitable storage temperature is 20 ºC to 25ºC.
Should the UPS remains unpowered for a prolonged period of time while the battery are connected, the batteryes may deeply
discharge and being so permanently damaged .In such cases it is therefore reccomented to leave the battery circuit breaker(s)
open. During storage in any case, periodically charge the battery according to the battery user manuals.
1.4 Positioning
When the equipment has been finally positioned, ensure the UPS will remain stationary and stable. To prolong the
service life, the choosen installation site must guarantee:
Space for easy operation on the UPS
Sufficient air to dispel the heat produced by the UPS
Protection from atmospheric agents
Protection from excessive humidity and heat sources
Protection against dust
Compliancy to the local fire prevention requirements
An operating environment temperature within +20°C to +25°C. The batteries are at maximum efficiency in this
temperature range (for information about the battery storage and transportation as well as the environment,
refer toTable 8-2 )
Preventing battery deep discharge
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
1.4.1 System Cabinet
A UPS system can comprise an UPS rack system, external battery cabinet, depending on the specific system
requirement.
All the UPS system cabinets used in the same installation site are of the same height and should be positioned
side-by-side to achieve an aesthetically appealing effect.
Refer to Chapter 7 Installation Drawing for the positioning of UPS cabinet.
1.4.2 Mooving The Cabinets
Ensure that any lifting equipment used in moving the UPS cabinet has sufficient lifting capacity.
The UPS is fitted with castors – take care to prevent movement when unbolting the equipment from its shipping pallet. Ensure
adequate personnel and lifting aids are available when removing the shipping pallet.
Ensure that the UPS weight is within the weight loading capacity range of any hoisting equipment. See Tab. 1-1 for
UPS weight.
UPS and optional cabinets can be handled by means of a fork lift or similar equipment. The UPS cabinet can also be
moved by its castors when moving in a short distance.
Note: Care must be taken when handling units fitted with batteries. Keep such moves to a minimum.
Chapter 1 Installation Of UPS Rack System 8
Warning
1.4.3 Transporting The Cabinets
Note :
The unit can be shipped whit 1, 2 or 3 power modules installed but not with 4 or 5 ( to be ship separate), and cannot
be with any battery modules installed
1.4.4 Clearances Required For Operating
As LIEBERT APM series UPS has no ventilation grills at either sides, no clearances are required for the sides.
To enable routine tightening of power terminations within the UPS, it is recommended that clearance around the front
of the equipment should be sufficient to enable free passage of personnel with the doors fully opened. It is important
to leave a distance of 350mm in the rear side of the rack to permit adequate circulation of air coming out of the unit.
If the UPS make use of internal modular battery sufficient clearing shall be given at the back site to allow personnel to
operate the battery circuit breakers (~ 600mm)
1.4.5 Front Access
The component layout of the UPS rack system supports front access and repairing the UPS, thus reducing the space
requirement for side and rear 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 Installation Of Adjustable Feet
Installation diagrams in Chapter 4 of this manual identify the location of the holes in the base plate through which
the equipment can be bolted to the floor. If the UPS is to be located on a raised floor, it should be mounted on a
pedestal suitably designed to accept the UPS point loading (more than 1000 kg). Refer to the bottom view in Fig. 4-7
to design this pedestal and stable.
1.4.8 UPS Composition
The UPS structure is shown in Fig. 1-1 The UPS configuration is provided in Tab. 1-1
3 Static Bypass module 1 Requisite, factory installed
4 Power module 1 ≤n ≤5 Requisite, factory installed if n≤3; 4th and 5th module installed at site
5 Battery module 0 ~ 10-n Optional, installed at site
Component Quantity Remarks
Tab. 1-1: UPS configuration list
1.4.9 Installing Power Modules and Battery Modules
The number and possible installation positions of the Power Modules and Battery Modules may vary according to
the chosen factory configuration. Thanks to the different mounting depth it’s not possible to install a power module
instead of a battery module and vice versa.
Please install the power modules and Battery modules from bottom to top, so as to avoid cabinet toppling due to high
gravity center.
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
Chapter 1 Installation Of UPS Rack System 10
Installation procedures of power modules
When installing power modules always work from the lower available space upwards to prevent raising the center of
gravity.
1. Use the DIP switch on the front panel of the module to set the module address. The setting range is from 1 to 5.
The module address should be exclusive. The setting method is shown in Tab. 1-2
Bit 1 Bit 2 Bit 3 Bit 4 Bit 5
1 0 0 0 0
0 1 0 0 0
1 1 0 0 0
0 0 1 0 0
1 0 1 0 0
Module address
1
2
3
4
5
Tab. 1-2: DIP switch setting method
2. Place the ready switch on the front panel of the module to the up position (i.e., in unready state).
3. Insert the module in the installation position, and push it into the cabinet.
4. Secure the module to the cabinet through the fixing holes on both sides of the front panel of the module.
5. Place the ready switch to the down position (i.e., in ready state).
DSP switch
Ready switch
Fig. 1-2: Installing Power Modules
Fixing holes
DETAIL A
Installation procedures of Battery Modules
When installing battery modules always work from the lower available space upwards to prevent raising the center of
gravity.
1. Open the front door
2. Insert the module in the installation position, and push it into the cabinet.
3. Secure the module to the cabinet trough the fixing holes on both side of the front panel of the module
1.4.10 Cable Entry
Cables can enter the LIEBERT APM series UPS rack system and battery cabinet from below. Cable entry is made
possible through a blanking plate fitted at the bottom of the equipment. The recommended installation practice is to
install glands to prevent foreign material or vermin entering the cabinet.
Chapter 2 Battery installation 11
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
1.5 External Protective Devices
For safety concerns, it is necessary 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
Over currents
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 (see Tab. 9-7).
Generally it is recommended a magnetic circuit breaker with IEC60947-2 tripping curve C (normal) rated at the 125%
of the current listed in Tab. 9-7.
Split bypass: In case a split bypass is used, separate protective devices should be installed for the rectifier input and
bypass input in the incoming mains distribution panel.
The rectifier input and bypass input must use the same neutral line.
Chapter 1 Installation Of UPS Rack System 12
Note
Note
For IT power network system, 4-pole protective device must be installed on the external input distribution and external output
distribution of the UPS.
Protection against earth faults (RCD devices):
The RCD device installed upstream of the input supply should be:
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 and 1A.
Fig. 1-3: The symbols of RCCB
When using the RCD in the split bypass system or parallel system, the RCD should be installed in the upstream of
the input distribution to avoid wrong alarm.
The residual current introduced by RFI filter in the UPS is between 3.5mA and 1000mA. It is recommended to confirm
the sensitivity of each RCD of upstream input distribution and downstream distribution (to load).
1.5.2 External Battery
The DC compatible circuit breaker provides over current protection for UPS system and battery, which is provided by
the external battery cabinet. See Appendix A for a selection guide
1.5.3 UPS Output
power
In the eventuality that an external distribution panel is used for load distribution, the selection of protective devices
must provide discrimination with those that are used at the input to the UPS (see Tab. 9-7).
1.6 Power Cables
Design the cables according to the descriptions in this section and local regulatory wiring standards, and the
environmental conditions (temperature and physical support media) should be taken into consideration. Refer to
IEC60950-1 Table 3B Cabling.
FAILURE TO FOLLOW ADEQUATE EARTHING PROCEDURES CAN RESULT IN EMI, ELECTRIC SHOCK HAZARD, OR RISK
OF FIRE, SHOULD AN EARTH FAULT OCCUR.
Mains input current at full
UPS
(kVA)
150
120
90
60
30
Note:
1. Input current of common input configurations of rectifier and bypass
2. Take special care when determining the size of the output and bypass neutral cable, as the current circulating on
the neutral cable may be greater than nominal current in the case of non-linear loads, which is usually 1.732 times of
rated currents..
3. Add 7 A per each redundant Power Module
The earth cable connecting the UPS to the main ground system must follow the most direct route possible. The earth
conductor should be sized according to the fault rating, cable lengths, type of protection, etc. According to
AS/IEC60950-1, the cross section area of the conductor is 80mm2 (150kVA).
When sizing battery cables, a maximum volt drop of 4Vdc. is permissible at the current ratings given in Tab. 1-3. The
load equipment is connected to a distribution network of individually protected busbars fed by the UPS output rather
than connected directly to the UPS. In parallel multi-module systems, the output cable of each ups rack unit should
be kept at equal length between the output of the ups rack output terminals and the parallel distribution busbar to
avoid affecting the shared current. When laying the power cables, do not form coils, so as to avoid the formation of
electromagnetic interference.
See Chapter 4 Installation Drawing for the positions of wiring terminals.
load and battery
charging
380V 400V 415V 380V 400V 415V
278 264 254 228 217 209 526 493 394
222 211 204 183 174 167 421 394 316
167 159 153 137 130 126 316 296 237
111 106 102 92 87 84 211 197 158
56 53 51 46 44 42 106 99 79
1. 2 .3
Warning
Rated current (A) Busbar stud size
Output current at
full load2
Battery discharging current at E.O.D
=1.67V , no overload
30
Batt/string
32
batt/string
Tab. 1-3 Maximum steady state AC and DC Current
Chapter 2 Battery installation 13
40
batt/string
Input /Output/
Bypass cables
Diameter of
Bolt
hole (mm)
M8
External
Battery
Cable
(bolt)
8 M8 5
Torque
(Nm)
FAILURE TO FOLLOW ADEQUATE EARTHING PROCEDURES CAN RESULT IN EMI, ELECTRIC SHOCK HAZARD OR RISK
OF FIRE, SHOULD AN EARTH FAULT OCCUR.
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
Warning
Rectifier AC input bus 203
Bypass AC input bus 203
UPS AC output 200
Battery input bus 256
Auxiliary cables: Connected to monitoring board (U2) 1850
1.6.1 Cable Connections
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 at the address given at the beginning of this
manual.
After the equipment has been finally positioned and secured, refer to Chapter 4 Installation Drawing to 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. Open the doors of the UPS, remove the front protective cover and then the power connection buses are visible.
3. Connect the protective earth and any necessary grounding cables to the enclosure of the cabinet at the bottom
part of the UPS rack (close to the cabinet side where the output connection terminal strips are located).The cabinet
for the UPS must be connected to the user’s ground connection.
Note: The grounding cable and neutral cable must be connected in accordance with local and national codes
practice.
Chapter 1 Installation Of UPS Rack System 14
UPS 150kVA UPS minimum distance to floor(mm)
Tab. 1-4: Distances from floor to connection points
Note
Referring to
Fig. 4-11
, Identify and make power connections for incoming cables according to one of the procedures below,
depending on the type of installation:
Common Input Connections
4. For common bypass and rectifier inputs, connect the AC input supply cables to the UPS input terminals
5. If a 'split-bypass' configuration is used, connect the AC input supply cables to the rectifier input terminals
(mA-mB-mC-mN) and the AC bypass supply cables to the bypass input terminals (bA-bB-bC-bN) ensuring correct
phase rotation. Tighten M6 bolts to 5 Nm
Note: For split Bypass operation ensure that the busbars between Bypass and Rectifier inputs are removed. The
neutral line of bypass input must be connected to that of the rectifier input.
Frequency Converter Mode
If the frequency converter configuration is used, connect the AC input cables to the rectifier input terminals
(mA-mB-mC-mN) ensuring correct phase rotation. Tighten M6 bolt to 5Nm, M8 bolt to13Nm and M10 bolt 26Nm.
No need to connect the bypass input cables to bypass input terminals (bA-bB-bC-bN).
Note: For the frequency converter operation mode, ensure that the busbars between Bypass and Rectifier inputs are
removed.
Output System Connections
Intellislot 2
6. Connect the system output cables between the UPS output busbars (oA-oB-oC-N) and the critical load ensure
correct phase rotation. Tighten M6 Bolt to 5 Nm
If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, then ensure that the system
output cables are safely isolated at their ends.
7. Re-install all the protective covers.
1.7 Control Cabling And Communication
1.7.1 Input and Output Interfaces
According to the specific needs of the field, the UPS may need auxiliary connection to realize the management of the
battery system (including external battery switch ad battery temperature sensor), communicate with PC, provide
alarm signal to external device, or realize remote EPO. These functions are realized through the UPS dry contact
located on the bypass module. The following interfaces are provided:
Back Feed Protection interface
External Battery Circuit Breaker interface
Battery ground fault detection
Battery temperature detection interface
Maintenance Bypass interface
Emergency Power Off interface
Service communication interface (for parameter setting and host monitoring)
Intellislots(TM) intelligent card interface
J8J5
Chapter 2 Battery installation 15
Warning
J6
J9
J10 J7
Fig. 1-4: Bypass Module (include Interfaces of dry contact and parallel signal board X2)
All auxiliary cables must be double insulated twisted cables with cross sectional area of 0.5mm2 ~ 1.5mm2 for maximum connection
length between 25m and 50m and must be routed separately from power cable
1.7.2 Back Feed Protection Interface (J5)
J5 is the backfeed protection interface, providing two relay output dry contact signals available to use with an
automatic device, externally located, to protect against back-feeding voltage thought the static bypass circuit.
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
12
Note
RS232Intellislot 1RS485
Intellislot 3
J5
Fig. 1-5
: Connections of output dry relay contacts
Position Name Meaning
J5.2 BFP_O Bypass backfeed protection - relay normally open.Closed when bypass SCR is shorted.
J5.3 BFP_S Bypass backfeed protection - common
J5.4 BFP_C Bypass backfeed protection - relay normally closed.Opened when bypass SCR is shorted.
Input dry contacts for environment detection and battery ground fault detection are provided by interface J7
Chapter 2 Battery installation 17
J
12V
J7
Fig. 1-8:
Position Name Meaning
J7.1 ENV3 Environmental alam detection (normally closed)
J7.2
J74 +12V +12V power supply
Note:
1. Must be configured by configuration software before becoming active.
2. Activating this feature turns the battery charger off
BtG
1,2
Tab. 1-7: Description of dry contact input port
1.7.5 Battery temperature sensor Interface (J8)
The input dry contact port J8 is ment to be connected to the battery temperature sensor (TMP-2) provided as an
option with the UPS. The connection of the battery temperature sensor is shown in Figure 1-12.
12V
Battery Input interface
J8
BIG
GND
Battery short to ground detection
ENV
GND
Position Name Meaning
J8.1 TMP_BAT_IN
J8.2 +12V_A +12V power supply
J8.3 TMP_BAT_OUT External battery temperature detection
J8.4 GND_A Power supply GND
+12V
BAT-OUT
Internal battery temperature detection
BAT-IN
The external battery temperature sensor (option) is composed of a temperature probe and a temperature
transmission board, as shown in Error! Reference source not found.. The battery temperature sensor is connected
to the UPS monitoring board. When it is connected to the UPS, UPS will automatically detect the device and make
compensate according to the temperature of battery.
To battery sensing point
TMP-2
4
3
2
1
To J8 on UPS bypass module
1
2
3
4
Fig. 1-9 Battery temperature sensor
Q1:+12V, GND, BAT-IN are for internal battery temperature sensor.
Q2:+12, GND, BAT-OUT are for external battery temperature sensor,
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
Q3: Battery temperature sensor must be purchased separately; the part number of the battery temperature sensor is
at the beginning of this document.
Q4: J8 port is used to connect internal battery temperature sensor and external battery temperature sensor.
1.7.6 Internal and External Maintenance Bypass Interface (J9)
Note 1: These contacts cannot be active unless they are set via software.
1.7.7 EPO Input Port (J10)
The UPS has an Emergency Power OFF (EPO) 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 EPO pushbutton is protected by a
hinged plastic cover.
As shown in Fig. 1-10 J10 is the input interface for remote EPO. The EPO is triggered when shorting pin 3 and pin 4
of J10, or opening pin 1 and pin 2.
If external emergency stop functionality is required, it is connected via the reserved terminals of pin 1 and pin 2 or pin
3 and pin 4 of J10. The external emergency stop interface needs to use shielded cables to connect to the normally
open/closed' remote stop switch between these two pins (refer to Fig. 1-4, and Tab. 1-9). If this interface is not used,
then pin 3 and pin 4 of J10 must be open, or pin 1 and pin 2 of J10 must be connected.
Position Name Meaning
J10.1 EPO_NC EPO is activated when it is disconnected from J10.2
J10.2 EPO_NC EPO is activated when it is disconnected from J10.1
J10.3 EPO_NO EPO is activated when it is short circuited with J10.4
J10.4 EPO_NO EPO is activated when it is short circuited with J10.3