Chl or ide Power Pr ot ect ion: 28430 N Ballard Drive, Lake Forest, IL 60045 USA
Tel ephone: ( 847) 990-3228
Toll Free: (800) 388-4234
Facsimile: (800) 833-6829
www.chlorideups.com
Linear Plus Series UPS User Instruction Manual
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS.
Please read and save these instructions. This manual contains important instructions for Chloride models:
•LT041XAT
•LT061XAT
•LT081XAT
•LT101XAT
•LPBP610-2
Follow these instructions during installation and maintenance of the UPS and batteries.
If you have a problem with the UPS, please refer to this manual before calling the Technical Support
Department. The Installation, UPS Operation, Maintenance and Troubleshooting sections; refer to table of
contents, address most UPS-related issues.
Chloride Power Protection
28430 N Ballard Drive
Lake Forest, IL 60045 USA
Registering Your UPS ........................................................................................................................................................ 1
Technical Support ............................................................................................................................................................. 1
About This Manual ....................................................................................................................................................2
Intended Use .............................................................................................................................................................3
General Warnings ...................................................................................................................................................... 3
Repacking of Unit ......................................................................................................................................................4
Long Term Storage ....................................................................................................................................................7
Ventilation and Accessibility ....................................................................................................................................... 7
Cable Sizes and Current ...........................................................................................................................................12
Output Terminal Voltage ..........................................................................................................................................13
Control Panel ...........................................................................................................................................................18
Control Panel Menu Flow Chart .............................................................................................................................. 19
Control Panel Menus and Displayed Text/Options .....................................................................................................20
Warning and Fault Indicators ...................................................................................................................................22
UPS Start-Up & Shut Down ............................................................................................................................................. 23
Return from Maintenance Bypass Procedure ............................................................................................................24
Emergency Switch Device (ESD)/Remote Power Off (RPO) Function ........................................................................... 24
Functional Test .........................................................................................................................................................24
Battery Test ..............................................................................................................................................................25
Serial Interface COM 3 .............................................................................................................................................27
Interface Slot COM ..................................................................................................................................................27
Appendix A: Features and Specifications ........................................................................................................................ 30
Features .................................................................................................................................................................. 30
Installing a Parallel System ....................................................................................................................................... 36
iiLinear Plus Series User Instruction Manual
Introduction
Introduction
Registering Your
UPS
Technical Support
FCC Compliance
Thank you for selecting this uninterruptible power supply (UPS). Chloride’s Linear Plus Series UPS
offers the most reliable protection from the harmful effects of electrical line disturbances for your
computing and communications equipment. Chloride ISO 9001 certification represents our commitment
to building world-class products. We take pride in every unit that leaves our facility.
To ensure that your Linear Plus Series UPS model and serial number are registered, complete and mail
the enclosed postage-paid warranty card.
Chloride offers 24-hour technical support. To contact Chloride Power Protection Technical Services call:
• North America: (847) 990-3229
Please check with Chloride Technical Services before attempting to repair or return any Chloride product.
If a Chloride UPS needs repair or replacement, Chloride Technical Services will issue a Return Material
Authorization (RMA) number along with instructions on how to return the UPS, or arrange for repair in
the field, at Chloride’s discretion. Contact Chloride Technical Services to order OEM replacement
batteries.
ATTENTION: Changes or modifications to this unit not expressly approved by the party responsible or
in FCC compliance could void the user’s authority to operate the equipment.
This equipment was tested and complies with the limits for a Class A digital device, pursuant to Part 15
of FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the UPS is operating in a commercial environment. The UPS generates, uses, and can radiate radio
frequency energy. If installation and use is not in accordance with the instruction manual, it may cause
harmful interference to radio communications.
Safety Compliance
ATTENTION: Operation of this equipment in a residential area may cause harmful radio
communications interference. The user is responsible for correcting the interference.
UL listing to UL1778
TUV compliance to EN62040-1
CE
Linear Plus Series User Instruction Manual1
About This Manual
This manual contains information regarding the installation, operation and use of the Uninterruptible
Power Supply (UPS).
Consult this manual before installation of the equipment, which should be performed only by qualified
personnel. This User’s Manual should be kept for later reference for operation and maintenance of the
UPS.
These instructions may be supplemented with additional sheets, describing specific extensions or options.
SymbolsThe following symbols are used in this manual:
ATTENTION: Indicates instructions, which if not observed, may endanger reliability of your UPS or the
security of your data.
WARNING: Indicates instructions, which if not observed, present risk of electric shock, may endanger
your life, your health, reliability of your UPS or the security of your data.
2Linear Plus Series UPS User Instruction Manual
Safety
Safety
Intended Use
This device serves as an uninterruptible power supply for connected loads. The UPS is in compliance with
all relevant safety regulations concerning information technology equipment, for use in an office
environment.
Depending on the type and rating of UPS, certain configurations of battery extensions may be connected.
These battery extensions may only be connected to the compatible basic UPS unit.
General WarningsWARNING: We consider the safety of personnel to be of paramount importance. For this reason it is
essential that procedures relating to safety in this manual be carefully reviewed before commencing work,
and properly adhered to thereafter. The User or Operator may intervene in the operation of the UPS
provided that the instructions laid out in the section titled “UPS Start-Up & Shut Down” on page 23 are
strictly followed.
WARNING: The installation of the UPS, described in the section titled “Installation” on page 8, may
only be carried out by qualified technical personnel according to local and national electrical codes such
as the NEC
WARNING: Even when all switches and/or circuit breakers are open, dangerous voltages are present
within this unit! There are no user-serviceable parts inside. Only factory authorized technical personnel
may carry out any operation that requires protection panels to be opened and/or removed. Any repairs or
modifications by the user may result in out-of-warranty repair charges, unsafe electrical conditions, or
violation of electrical codes.
Safety Notices
Linear Plus Series UPS User Instruction Manual 3
WARNING: Read the following safety notices carefully! Disregarding these safety notes may endanger
your life, your health, and the reliability of your UPS and the security of your data.
®
.
• Transport the unit only in suitable packaging (protected against jolts and shocks).
• If the equipment is moved from a cold environment to a warmer operating location, condensation
may occur. Before you switch on the equipment it must be absolutely dry. An acclimatization period
of at least two hours is required.
• The equipment must be installed in accordance with the environmental conditions specified in
“Environmental Conditions” on page 7 and Table 2, “Installation Data,” on page 8.
• Even with all buttons and circuit breakers in the “OFF” position the UPS is not isolated from the
mains. To isolate completely from the mains, the power cables must be disconnected.
• This UPS device receives power from more than one source. The output terminals and/or receptacles
may have voltage present even when the input is disconnected. UPSs present a different safety issue
than most electrical equipment because unplugging the UPS may cause the UPS to operate in battery
or backup mode. Disconnecting the UPS input does not remove the electrical charge.
• In case of interruption of the mains voltage, the integrated battery maintains the power supply to the
user’s equipment.
• Lay all cables so that nobody can stand on them or trip over them. Only connect input and output
cables (or battery cables when external battery cabinets are used) by following the installation
guidelines provided in this user manual and by referring to applicable codes.
• Make sure that no metal objects (e.g. pins, necklaces, paper clips, etc.) are introduced or left inside
the UPS.
• In emergencies (e.g. damaged case, controls or power cables, penetration of liquids or foreign
matter) switch off the UPS and contact Technical Support for assistance.
• Do not connect equipment that will overload the UPS or equipment that is designed to draw
DC-current.
• When cleaning the unit, follow the instructions in the section titled “Maintenance” on page 25.
• The sum of the leakage currents (protective conductor current) of the UPS and the connected UPSs
exceeds 3.5 mA for all ratings of the UPS. Ground (earth) connection is essential before connecting
supply.
• Data transmission lines should not be connected or disconnected during a thunderstorm.
• The Remote Power Off (RPO/ESD) contacts are located on the rear of the unit (Figure 9). When this
connection is open, the logic circuit will immediately shut down the UPS output.
Setup
• The maintenance bypass switch is intended for use by experienced service personnel only. It is
located at the back of the unit, behind a safety cover (refer to Figure 9). Open the safety cover to
locate and operate the maintenance bypass switch. Instructions for operating the maintenance
bypass switch must be followed or damage to UPS may occur.
Leakage CurrentsWARNING: Connect the ground (earth) safety conductor before any other cables are connected.
BatteriesWARNINGS:
• Battery maintenance should only be performed by authorized personnel.
• Batteries installed in the UPS or within the external battery cabinets contain electrolyte. Under
normal conditions the battery cases are dry. A damaged battery may leak electrolyte that can be
dangerous in contact with the skin and cause irritation to the eyes. Should this happen wash the
affected part with copious amounts of water and seek immediate medical attention.
• Voltage is always present on the battery terminals.
• Even when discharged, a battery has the capacity to supply a high short circuit current, which, in
addition to causing damage to the battery itself and to associated cables, may expose the operator to
the risk of burns.
• Batteries should not be kept in storage for periods exceeding 6 months at 77°F (25°C) without being
recharged (having been charged to 100% at the beginning of any such period). If these conditions
are not respected, the performance of the battery can no longer be guaranteed. It is advisable to
recharge the batteries at least once every 4 months.
• Since new batteries often do not provide full capacity after an initial charge it may be necessary to
carry out a number of discharge/recharge cycles before optimum performance is achieved.
• In order to protect the environment, batteries must be disposed of in accordance with the regulations
governing disposal/recycling of toxic and harmful waste.
Repacking of UnitDo not pack the UPS or external battery cabinets until at least six (6) hours have elapsed since the last
battery recharge.
Place the equipment in bags made of a material sufficiently porous to allow it to breathe [e.g. 4 mil
(100µm) polyethylene].
Do not remove air from the packaging.
When packing unit for movement by common carrier, place on original, or equivalent pallet and repack
in original, or equivalent crate.
Setup
Delivery
The equipment has been thoroughly checked before shipment. Upon receipt, check the packaging and
ensure that the contents are undamaged. Any damage must be reported to the shipper and any missing
parts must be reported to the supplier immediately.
UnpackingCare should be taken when removing the packaging in order to avoid damaging the equipment. Check all
packaging materials to ensure that no items are discarded. Remove the packaging following the sequence
illustrated in Figures 1, 2, 3, and 4.
Tools Required
• Hand operated pallet jack
• Scissors
• Screwdriver
ATTENTION: The equipment must be kept upright at all times and handled with care; damage may be
caused if dropped or subjected to severe impact.
4Linear Plus Series UPS User Instruction Manual
Fig. 1: Step 1: Remove Strapping
Setup
2
1
Fig. 2: Step 2: Lift Crate
Linear Plus Series UPS User Instruction Manual 5
Setup
Fig. 3: Step 3: Remove Bracing
Fig. 4: Step 4: Slide Down Ramp
Included with the UPS are two L-shaped tie-down brackets to prevent the UPS from being moved. These
brackets are secured to the unit and then to the floor where the UPS will be positioned.
ATTENTION: To ease movement over short distances the UPS is fitted with wheels. Before removing the
UPS from the pallet, raise the leveling feet on the unit.
6Linear Plus Series UPS User Instruction Manual
Setup
Long Term Storage
Environmental
Conditions
Floor Loading
If the UPS is to be stored prior to use, it should be stored in a clean, dry environment and away from
temperature extremes. It is recommended that the equipment be stored in a temperature controlled,
moderate humidity environment. Table 1 below provides the temperature and humidity storage limits:
Table 1. Storage Data
Temperature limits -Batteries ONLY32°F to 104°F (0°C to +40°C)
Temperature limits - UPS without batteries-13°F to 131°F (-25°C to +55°C)
Temperature limits – UPS with batteries32°F to 104°F (0°C to +40°C)
Relative humidity (non-condensing)0% to 90%
NOTE: When storing equipment, every 8°C above 25°C reduces the shelf life of the battery by 50%. More
frequent battery charging is required to maintain the batteries in storage at these greater temperatures.
The UPS must be installed vertically on a level and even surface and in an area protected from extremes
of temperature, water, humidity and the presence of conductive powder or dust (See Table 2 on page 8).
Do not stack units and do not place any objects on top of a unit.
The functional temperature range of the UPS is 32°F to 104°F (0°C to 40°C).
The ideal ambient temperature range is 60°F to 77°F (15 °C to 25°C).
Expected battery runtimes and battery life is based on operational temperatures between 68°F and 77°F (20°C
and 25°C). Operation of the equipment above 77°F (25°C) reduces the service life of the batteries dramatically.
Taking into consideration the weight of the UPS as shown in Appendix A: Features and Specifications , it is necessary that the floor in the chosen location be capable
of supporting the weight of the unit.
Ventilation and
Accessibility
The area chosen for the UPS must have sufficient space for the installation to be completed. Access doors
must be sufficiently sized to permit clearance of the unit, see “Installation” on page 8
It is necessary to leave a minimum space of at least two inches (50 mm) around the side and rear panels
to allow a flow of air.
Electrical maintenance and servicing, which may involve removal of the panels (see Figure 5) requires
access to all four sides of the UPS. Provide the necessary space or use a flexible wiring system to allow
movement of the UPS.
Fig. 5: Accessibility - Removable Panels
Linear Plus Series UPS User Instruction Manual 7
Installation
Installation
WARNING: Before connecting any input wiring to the UPS, take precautions to insure that all circuits
being worked on are de-energized and proper lock-out/tag-out procedures have been followed. This is to
ensure that the live input source cannot accidentally be connected to the UPS during installation.
WARNING: Installation and operation should only be performed by qualified electrical personnel and in
conformity with local and national codes and applicable safety standards.
WARNING: Electrical shock hazard: Even when the UPS is disconnected from the mains, hazardous
voltages may still exist inside the UPS. The UPS receives power from more than one source—AC input
and DC input from batteries. All input sources (AC and DC) must, therefore, be disconnected before
carrying out installation or maintenance work inside the UPS.
Table 2. Installation Data
Ambient temperature32°F to 104°F (0 °C to 40C°)
Relative humidity (non condensing)90%
EnvironmentControlled (i.e. Office or equivalent)
Max. altitude 3280 ft. above sea level (1000 m.a.s.l.)
Cable inletRear Center
Air inletFront and Sides
Air outletRear
NOTE: IEC/EN 62040-1 specifications do not include operation over 1000 meters. Contact Linear Plus
Technical Services for other applications.
ATTENTION: Some particularly sensitive electronic equipment may be susceptible to interference; in
order to prevent this it is suggested that input, output and any external battery cables to the UPS be housed
in properly grounded, metal conduits or that shielded cables be used. Routing of cables (e.g. power
supplies, communication or data lines) to other equipment should be kept separate from that of UPS cables.
External
Overcurrent
Protection and
Isolation Devices
External devices for the protection of wiring and for isolating the UPS should be installed upstream of the
equipment. Select and configure the isolating device by referring to Table 3, “Fuses or Circuit Breakers,”
on page 8. These devices must be designed to work with inductive loads such as transformers. Devices
should be provided in building installations and other locations.
The following table indicates the recommended size of input protection devices (circuit breakers and
fuses) that should be installed for the protection of both wiring and equipment.
Table 3. Fuses or Circuit Breakers
Description4 & 6 kVA8 & 10 kVA
Input: Fusible Disconnect/Breaker40 Amps70 Amps
To avoid spurious operation using GFCI breakers, these breakers must:
• be rated at differential current NOT LESS THAN 100 mA.
• be a SELECTIVE type (delayed intervention).
Emergency Switch
Device (ESD)/
Remote Power Off
(RPO) Function
8Linear Plus Series UPS User Instruction Manual
For reasons of safety, a device having the characteristics of an Emergency Off button must be installed
externally of the UPS. This UPS is equipped with separate terminals for connecting hardwired customer
protection ESD relays.
These external terminals, labeled “RPO,” are located next to the 9 pin SUB-D (interface COM3)
connector on the upper back section of the unit, see Figure 9.
If the circuit between the two RPO connector pins is “opened,” the output of the UPS is immediately
switched off.
The RPO circuit may be extended by connecting normally closed switches in series between the RPO
connection pins. Activating (opening) any of the series switches will causes the UPS to shut off its output.
Installation
Connections
WARNING: Confirm that all circuit breakers/switches feeding power to UPS are “Open” and locked out
per lock-out/tag-out procedures.
3. Set maintenance bypass switch to “Bypass,” Fig. 6
4. Remove terminal area safety cover, Fig. 6.
NOTE: If the UPS is fitted with an optional PDU, remove cover from PDU.
In order to gain access to the external electrical connections the rear wiring box protection panel of the
UPS must be removed. All wiring must be placed in proper conduits, and all cabling must be strain
relieved per local and national codes. See Table 4, “Cable Sizes,” on page 12.
Linear Plus Series UPS User Instruction Manual 9
Installation
Rear Panel
Rear Wiring Box Protection Panel
Cable Entry
Fig. 7: Side view
WARNING: Connect the ground cable first.
WARNING: Ensure that the UPS is isolated from ALL AC & DC sources before removing panels.
Connecting Power Cables
(Refer to section titled Table 4, “Cable Sizes,” on page 12)
5. Connect loads to “Output” terminals.
ATTENTION: If using separate inputs for Mains and Bypass, it is imperative that the inputs be in phase.
Failure to correctly recognize and adhere to this requirement will cause serious damage to the UPS.
6. Connect mains to the corresponding input terminals. UPS can utilize a single input (using same input
for both Mains and Bypass inputs) or two separate inputs (from same transformer and using same
phases, for separate Mains and Bypass inputs)
- If the UPS is supplied by a single source, connect jumpers from JL1 to BL1 and from JL2 to
BL2. Input is connected to Main Line (ML1 & ML2) terminals. See Figure 8.
- If the bypass input is supplied separately, connect bypass line to the Bypass (BL1 & BL2)
terminals. Input is connected to Main Line (ML1 & ML2) terminals. Do not connect jumpers to
JL1 or JL2. See Figure 8.
7. If UPS is to be operated as single unit connect a jumper between S1 and S2. See Figure 8.
8. If UPS is to be operated as parallel unit ensure that no jumper is connected between S1 and S2.
Fig. 8: Terminal Block
10Linear Plus Series UPS User Instruction Manual
Rear Panel
NOTE: Once installation has been completed, the vertically adjustable feet on the UPS must be used to
fix it in position.
COM 3 Interface
ESD/RPO Contacts
Slot Interface COM (optional)
Fans
Ports for Parallel Operation
Maintenance Bypass Switch
Input Circuit Breaker for Main Input
Installation
External Battery
Receptacle
Input Circuit breaker for Bypass Input
Input and Output Terminal Block
Fig. 9: Rear View
Linear Plus Series UPS User Instruction Manual 11
Installation
Cable Sizes and
Current
The following table indicates the recommended sizes of conductors in accordance with the NEC®. (Air
temperature surrounding the conduits not greater than 86°F (30°C).)
NOTE: Cable sizes are suggested and based on standard configurations. Installers should verify correct
conductor sizes pursuant to NEC
runs, consult NEC
®
and/or state or local codes to account for electrical losses.
®
and/or state or local codes. If the installation requires long conductor
Table 4. Cable Sizes
6 kVA (4 kVA)10 kVA (8 kVA)
Term IDDescription
JMP
MAIN
BYPASS
OUTPUT
‡ Wire between JL1 & BL1 and between JL2 & BL2 if only single input power source is used.
‡‡ Output voltage available at output terminals dependent on specific model. See Table 5 - 7 on page 13 for details.
* Use insulated copper wire rated 75°C minimum
** Must be no smaller than wire connected to L1 and L2
NOTE: For installation per IEC regulations: If installing units per regulations IEC-287 and DIN VDE 0298, 6 kVA model
should be wired (inputs and outputs) with 6 mm2 cable torqued to 4.5 nt-m; and 10kVA model (inputs and outputs) should be
wired with 10 mm2 cable torqued to 5.0 nt-m. (Based on 70°C cable and ambient of 30°C)
JL1Line 1 (Jumper)
JL2Line 2 (Jumper)
ML1Line 1 (Main)8407564575
ML2Line 2 (Main)8407564575
E/GChassis Ground**4075**4575
BL1Line 1 (Bypass)8407564575
BL2Line 2 (Bypass)8407564575
E/GChassis Ground**4075**4575
X1Output Term 110357564575
X2Output Term 210357564575
X3Output Term 310357564575
‡‡
E/GChassis Ground10357564575
X4Output Term 410357564575
X5Output Term 510357564575
X6Output Term 610357564575
main wire
gauge (awg
‡
8407564575
‡
term torque
(in-lbs)
8407564575
min wire
temp (°C)
main wire
*
gauge (awg
term torque
(in-lbs)
min wire
temp (°C)*
12Linear Plus Series UPS User Instruction Manual
Output Terminal
Voltage
Installation
Table 5. 120/208/240 Output Terminal Voltage Configurations
X1X2X3E/GX4X5X6
Terminal Voltage(-)12000-88(+)120* (+)120*
120 Volts (from X2 and X3 to
X5 and X6)
208 Volts (from X1 to X4)
240 Volts (from X1 to X6)
ATTENTION:
*X2 & X3 are wired together, and X5 and X6 are wired together to provide full nameplate
rated current at 120 V (50 A for 6 kVA model and 83 A for 10 kVA model). However, each terminal can supply
only 1/2 of the total current and both terminals MUST be connected to the load in order to provide full power
Table 6. 120/208/230/240 Output Terminal Voltage Configurations
X1X2X3E/GX4X5X6
Terminal Voltage0120*--208230240
ATTENTION: *X2 provides only 1/2 of nameplate rated current power (25 A for 6 kVA model and 40 A
for 10kVA model. User must provide over current protection (fuse or circuit breaker) of proper size
.
Table 7. 100/200 Output Terminal Voltage Configurations
X1X2X3E/GX4X5X6
Terminal Voltage(-)10000--(+)100* (+)100*
100 Volts (from X2 and X3 to
X5 and X6)
200 Volts (from X1 to X6)
ATTENTION: *X2 & X3 are wired together, and X5 and X6 are wired together to provide full nameplate
rated current at 100 V (50 A for 6 kVA model and 83 A for 10 kVA model). However, each terminal can supply
only 1/2 of the total current and both terminals MUST be connected to the load in order to provide full power.
.
Linear Plus Series UPS User Instruction Manual 13
Installation
External Battery
Installation
Fig. 10: Connecting External battery Cabinets
For unpacking the battery cabinets, see “Unpacking” on page 4. See page 7 to page 8 for installation
considerations.
NOTE: The battery cabinet should be placed close to the UPS while still allowing the UPS adequate
ventilation.
NOTE: Due to the weight of each battery cabinet, see “Appendix A: Features and Specifications” on
page 30 to ensure the area chosen is capable of supporting the total weight.
Battery cabinets (1 or 2 units) can be connected to the UPS. A cable used for connecting the batteries to
the UPS (or battery cabinet to battery cabinet as shown in Figure 10) is provided with each battery cabinet.
NOTE: External battery cabinets can be replaced during “normal operation” of the UPS (“hot
swappable”). However, care should be taken not to install or remove battery cabinets during an input AC
power failure or during “On Battery” operation (UPS is in the status “AC Fail = On Battery”)
NOTE: The unit indicates an alarm condition when the battery is not connected.
To connect an external battery cabinet:
1. Insure that the circuit breaker on the back of the external battery cabinet is in the “OFF” position.
2. Using the supplied keyed cable, plug one end of cable into the back of the battery closest to the UPS.
3. Plug the other end of the keyed cable into the UPS battery sockets.
4. Turn the external battery cabinet’s circuit breaker to the “ON” position.
NOTE: If your UPS has an integrated battery, a compensating current may occur during connection when
the circuit breaker is put in the “ON” position.
To connect an additional battery cabinet:
1. Insure that the circuit breakers on each battery cabinet are in the “OFF” position.
2. Using the supplied cable, plug one end of the cable into the back of the additional battery cabinet.
3. Plug the other end of the cable into the first battery cabinet, see Figure 10 above.
4. Turn all the external battery cabinet’s circuit breakers to the “ON” position.
WARNING: The operation of the UPS may only be carried out by qualified technical personnel according
to local and national electric codes such as NEC.
14Linear Plus Series UPS User Instruction Manual
UPS Operation
UPS Operation
UPS Mode
In use, the UPS is connected between the AC input power and the load. The operation of this UPS is based
on the on-line principle in which the input AC power is first converted to DC, and secondarily converted
back to a sine wave of a fixed frequency and voltage to supply controlled power to the load. This UPS
topology is used to isolate the critical load (e.g. servers, switches, routers, etc.) from a variety of power
line problems, including the total loss of input AC power.
Bypass ModeIn the unlikely event of a component failure within the UPS or a brief overload, the electronic bypass will
be activated to continue supplying the load directly from the input line.
Battery ModeIn the event of a mains failure, the batteries will continue to provide an uninterrupted supply of energy to
the load. In practice, most mains failures are of relatively short duration. Therefore, the energy stored in
the UPS’s batteries is, in most cases, sufficient to ensure continuous operation of the connected systems
until the mains power is reestablished. In the event of a long lasting mains failure, the UPS can be utilized
with shutdown software to enable a controlled shutdown of connected systems.
The most reliable method for determining the estimated battery runtime is the application of MopUPS
software or a ManageUPS network card. With this software, the estimated remaining battery capacity is
indicated before and during an AC power failure. These products also allow for automated shutdown
procedures that can shut down the attached devices after safely closing open application programs and the
operating system. After return of the mains voltage, the UPS automatically restores power to the
connected equipment.
Fig. 11: Block Diagram (120/208/240 Volt output)– Typical for models with A in the part number
Linear Plus Series UPS User Instruction Manual 15
UPS Operation
Fig. 12: Block Diagram (120/208/230/240 Volt output)–Typical for models with I in the part number
16Linear Plus Series UPS User Instruction Manual
UPS Operation
Fig. 13: Block Diagram (100/200 Volt output)–Typical for models with J in the part number
Linear Plus Series UPS User Instruction Manual 17
UPS Operation
Control Panel The front panel can be adjusted to be flush with the front of the UPS or set at an angle for easier viewing.
To move front panel between positions, press the panel on the lower edge. To restore panel to flush
position, reach behind panel and press center of support bracket while pressing panel down. Continue
pressing panel down until it latches into the flush mount position.
LCD Screen
Select Esc Button
Menu Down Button
Bypass LED (yellow)
ON LED (green)
Fig. 14: Control Panel
Select Menu Button
Menu Up Button
Fault LED (red)
BATT LED (red)
Control Panel Messages and Audible Alarms
The comprehensive front panel display provides visual indication of unit status at any given time.
LCD screen indicates:
• Status
• Load
• Runtime
• Faults
• Menu Controls
To scroll through the menu controls on the LCD screen, press the “Menu up” or “Menu down” and
“Select” buttons. Each menu has a dedicated number. See Figure 15 for menu content.
Table 8. LED Codes
LEDLED Code
Lighted LEDs:
Flashing LEDs:
18Linear Plus Series UPS User Instruction Manual
• “ON” indicates UPS running online.
• “BYPASS” indicates load fed from mains via automatic bypass.
• “BATT” indicates load fed from battery. An audible alarm signal is given.
• “BYPASS” flashing indicates that the bypass mains are out of tolerance.
•Do not give command to switch off the UPS or to switch from “Online” to
“Bypass” in this status, as this would interrupt the operation of the
connected critical load.
Control Panel Menu Flow Chart
UPS Operation
31
Turn UPS
ON/OFF
311
Turn UPS
to Online
0
1
Start Window
System Status
2
Main Menu
3
4
5
Control Menu
Status menu
Setup Menu
32
Reset Fault
33
Buzzer Control
34
Manual Battery Test
4x
See Status Menu
table on page 21
51
Buzzer Alarm
52
Output Voltage
53
Battery Pack
54
Battery Test
55
DC Start
312
Turn UPS
to Bypass
341
10 Second Test
342
X Minute Test
343
Test Till Battery Low
344
Cancel Battery Test
345
Test Report
541
Battery Test Time
542
Battery Test Period
543
Manual/Auto Test
56
UPS Address
57
Series Number
58
Language
61
6
7
Logging Menu
About Menu
Event and Time
62
Clear Event Log
Fig. 15: System Block (Main and Sub-Menus)
Linear Plus Series UPS User Instruction Manual 19
UPS Operation
Control Panel Menus
and Displayed Text/
Options
WindowDescription
O
Start
Window
WindowDescription
1.
System
Status
WindowDescription
2.
Main
Menu
UPS: “UPS Mode/Warning Table/Fault Table” Menu
NOTE: All UPS Mode/Warning Table/Fault Table
will alternate once a second.
UPS XX kVA
Self testing please wait
Wait about 6 seconds
UPS XX kVA
Control
Status
Setup
Logging
About
WindowDescription
311Turn UPS t o ONLINE
312Turn UPS to BYPASS
34110 Second Test
342X Minute Test
343Test Till Batt Low
344Cancel Batt Test
345Battery Test Report
3.
Control
Menu
31
32Reset Fault
33Buzzer Control
34Manual Battery Test
Turn UPS
ON/OFF
Reset Fault
No Fault Now
Alarm On
Alarm Off
No Test In Progress
Test In Progress
Test OK!
Test Fail
Test Inhibit
Test Stop By User
Test Autonomy
Test Unknown
20Linear Plus Series UPS User Instruction Manual
WindowDescription
Measured ValueUnit
L1 Input VoltV
Input Frequency0.1 Hz
Output VoltV
Output Frequency0.1 Hz
Output Load%
4.
Status
Menu
Output WattW
Output VAVA
Battery VoltV
Battery Capacity%
Back UpMin., Sec.
Run Timeday:hr:min:sec
UPS ID
Plus BUSV
Minus BUSV
UPS Operation
WindowDescription
51Buzzer AlarmDisable/Enable
52Output Voltage200/208/220/230/240 V
Set up 1. (1)Internal Batt(0)External Batt20 Batt Total
Set up 2. (1)Internal Batt(1)External Batt60 Batt Total
53Battery Pack
5:
Setup
Menu
54Battery Test
55DC StartDisable/Enable
56UPS Address0-31
57Series Number00000-99999
58language7 Languages
WindowDescription
6.
Logging
Menu
61Event and Time*
62Clear Event Log
NOTE: * Maximum four fault event records.
Set up 3. (1)Internal Batt(2)External Batt100 Batt Total
Set up 4.(0)Internal Batt(1)External Batt40 Batt Total
Set up 5. (0)Internal Batt(2)External Batt80 Batt Total
541Batt Test Time1-99 Minutes
542Batt Test Period7-180 Days
543Manual Auto TestManual/Auto
Linear Plus Series UPS User Instruction Manual 21
WindowDescription
7.
About
Menu
VXXXXX & Date (UPS Version & Date)
DSP Version XXXXX (Software Version)
UPS Operation
Warning and Fault
Indicators
If a warning indication appears, the UPS continues to operate. The warning message alternates with UPS
mode once a second. The various warnings indicators and their corrective steps are listed in Table 9 below.
Table 9. Warning indicators
WarningCauseCorrective Steps
1.Batt under volt.Call Technical Support
2.Utility failureRestore utility power
3.L1 failureCheck input circuit breaker/fuse
4.Over temp. 65Check/clear fans and/or reduce ambient temperature
Fault indicators
If a fault occurs, the UPS automatically switches to BYPASS operating mode; ONLY in case of a battery
disconnect fault will the original operating mode be maintained.
The fault message alternates with UPS mode once a second, the red fault LED illuminates on the control
panel and the buzzer sounds continuously.
If a fault occurs, proceed as follows:
Table 10. Fault Windows
ActionWindowDetails
Buzzer alarm33The buzzer alarm can be switched ON or OFF.
Clear fault32
Get fault information6
Present fault condition can be reset if fault condition is cleared, either
automatically or by the operator/technician.
A maximum of 4 fault events may be displayed in this window.See table 11
below for code details.
All fault displays include:
•the nature of the fault event
•time it occurred; the time is relative to the UPS operating time.
Table 11. Fault Codes
FaultCauseCorrective steps
1.DC BUS faultCall technical support
2.Inverter faultCall technical support
3.Over temperatureReduce temperature
4.Batt over volt.Call technical support
5.Batt. mode overloadReduce load
6.Output overloadReduce load
7.Output shortCall technical support
8.Fan lock faultCall technical support
9.Batt. DisconnectCheck battery connector
10.Charger failureCall technical support
11.RPO activatedCorrect problem, restart UPS
12.Parallel faultCall technical support
13.Internal faultCall technical support
14.Output failureCall technical support
22Linear Plus Series UPS User Instruction Manual
UPS Start-Up & Shut Down
UPS Start-Up &
Shut Down
UPS Start-Up
Procedure
WARNING: The operation of the UPS may only be carried out by qualified technical personnel according
to local and national electric codes such as NEC.
1. Ensure all switches and circuit breakers upstream (input) and downstream (output) of the UPS are
open.
2. Remove the safety cover from the Maintenance Bypass Switch and switch from “UPS” to “Bypass.”
3. Ensure UPS mains connections are secured at the UPS input.
4. Close all switches and circuit breakers upstream of the UPS.
5. Close Main 1 and Bypass circuit breakers on rear panel. The control panel displays “Self testing,
please wait.”
6. Wait for at least 30 seconds until the output voltage has stabilized (yellow Bypass LED illuminated).
The control panel displays “UPS: Bypass Output.”
7. Switch Maintenance Bypass Switch to “UPS” position and replace cover.
Check Setup Menu 5, see “Control Panel Menus and Displayed Text/Options” on page 20. Check
and adjust parameters for language, voltage and battery pack(s) as necessary. The preset language is
ENGLISH.
8. Close any external switches or circuit breakers downstream of the UPS connecting the load (if
present).
9. Press the “MENU” button.
10. Select submenu “Control.”
11. Press “OK”.
12. Select submenu “Turn UPS ON/OFF” and press “OK.” The control panel displays “Turn UPS to
ONLINE.”
13. Press “OK” to switch on the inverter. The green “ON” LED is illuminated.
UPS Shutdown
Procedure
Maintenance
Bypass Procedure
ATTENTION: Carrying out this procedure will interrupt the supply to the connected critical load.
1. Press the “MENU” button.
2. Select submenu “Control.”
3. Press “OK.”
4. Select submenu “Turn UPS ON/OFF” and press “OK.” The control panel displays “Turn UPS to
BYPASS.”
5. Press OK to switch off the inverter.
6. The display reads: “UPS Bypass Output” and Bypass LED is illuminated.
7. Open any external switches or circuit breakers downstream of the UPS connecting the load (if
present).
8. Open both input circuit breakers (Main 1 and Bypass).
9. Ensure all switches and circuit breakers upstream of the UPS are open.
10. Ensure that all LEDs on the control panel are extinguished. The UPS is now completely shutdown.
WARNING: Electrical shock hazard: Even when the UPS is disconnected from the mains, hazardous
voltages may still exist inside the UPS. The UPS receives power from more than one source—AC input
and DC input from batteries. All input sources (AC and DC) must, therefore, be disconnected before
carrying out installation or maintenance work inside the UPS.
1. Press the “MENU” button.
2. Select submenu “Control.”
3. Press “OK.”
4. Select submenu “Turn UPS ON/OFF.”
5. Press “OK.” The control panel displays “Turn UPS to BYPASS.”
Linear Plus Series UPS User Instruction Manual 23
UPS Start-Up & Shut Down
6. Press “OK” to switch off the inverter.
7. The display reads: “UPS Bypass Output” and Bypass LED is illuminated.
8. Remove the safety cover from the Maintenance Bypass Switch and switch from “UPS” to “Bypass.”
ATTENTION: At this point the critical load is no longer protected by battery backup during interruptions and
disturbances on the mains supply.
9. Open both input circuit breakers (Main 1 and Bypass).
10. The UPS is now switched off, all LEDs are extinguished and the load is supplied directly from the mains
supply via bypass.
Return from
Maintenance
Bypass Procedure
Emergency Switch
Device (ESD)/
Remote Power Off
(RPO) Function
1. Ensure all switches and circuit breakers upstream of the UPS are closed.
2. Close both input circuit breakers (Main 1 and Bypass).
3. Wait for at least 30 seconds until the output voltage has stabilized (yellow “Bypass” LED illuminated).
The display reads: “UPS: Bypass.”
4. Switch the Maintenance bypass switch from “Bypass” to “UPS” and replace the cover.
5. Press the “MENU” button.
6. Select submenu “Control.”
7. Press “OK.”
8. Select submenu “Turn UPS ON/OFF.”
9. Press “OK.” The control panel displays “Turn UPS to ONLINE.”
10. Press “OK” to switch on the inverter. The green “ON” LED is illuminated. The UPS is now in ONLINE
operation.
For reasons of safety, a device having the characteristics of an Emergency Off button must be installed
externally of the UPS. This UPS is equipped with separate terminals for connecting hardwired customer
protection ESD relays.
These external terminals, labeled “RPO,” are located next to the 9 pin SUB-D (interface COM3) connector on
the upper back section of the unit, see Figure 9.
If the circuit between the two RPO connector pins is “opened,” the output of the UPS is immediately switched
off. To restart the UPS, the procedures outlined in the “UPS Start-Up Procedure” on page 23 must be followed.
The RPO circuit may be extended by connecting normally closed switches in series between the RPO
connector pins. Activating (opening) any of the series switches will cause the UPS to shut off its output.
Functional TestTo test readiness of the UPS, a functional test can be performed.
ATTENTION: Supply to the load is not guaranteed during this test. It should not be carried out if a critical
load is connected to the UPS.
Simulate a mains failure by interrupting the mains supply to the UPS. If the UPS is operating correctly and the
batteries are fully charged, the following will occur:
• An acoustic signal at intervals of 4 seconds will be heard
• The “ON” LED indication will be extinguished
• The “BATT” LED will be lit.
Once the interval between the acoustic signals has decreased to 1 second, the UPS will continue to supply
energy via the batteries for a maximum of 3 more minutes, after which it will automatically switch off.
The load will be supplied from the batteries during the specified emergency supply period. If this does not
occur, see “Troubleshooting” on page 29.
If the test is successful, restore the UPS mains supply. The UPS is ready for operation.
NOTE: The batteries must be recharged before the complete emergency supply period is again available.
24Linear Plus Series UPS User Instruction Manual
Battery TestTo test batteries, follow the procedure below.
1. Press the “MENU” button.
2. Select submenu “CONTROL” and press “OK.”
3. Select submenu “MANUAL BATT TEST” and press “OK.”
A single acoustic signal confirms testing and the load will be supplied by the battery.
NOTE: During the test an acoustic signal will be heard as though the UPS is operating in battery mode.
If the test is successful, the “BATT” LED will extinguish and the UPS will return to “On-Line mode.”
If the UPS detects a battery malfunction, an alarm will be displayed.
Maintenance
Maintenance
Cleaning
Do not use abrasive powder or plastic-dissolving solutions to clean the UPS.
Do not allow liquid to penetrate the interior of the UPS.
Make sure that the air vents on the UPS are not obstructed. Remove dust from the air vents with a vacuum
cleaner.
Clean the outside of the UPS housing by wiping with a dry or a slightly damp cloth.
StorageFor extended storage at an ambient temperature < 77°F (25°C) the batteries should be charged for 5 hours
once every 4 months; at higher storage temperatures it is advised that this period be reduced to two
months.
To charge the batteries while in storage:
1. Connect the UPS to an appropriate source (refer to “Installation” on page 8 for more details).
2. Switch on the Main 1 input circuit breaker at the rear of the UPS.
3. After 5 hours, switch off the Main 1 input circuit breaker.
4. Disconnect the mains supply to the UPS.
5. Note the date recharging was carried out on the UPS packaging.
Battery Maintenance
and Disposal/
Recycling of
Batteries
WARNING:
• Servicing of batteries should be performed or supervised by personnel knowledgeable about
batteries and the required precautions.
• The batteries installed in the UPS and in the external battery cabinets contain electrolyte. Under
normal conditions the containers are dry. A damaged battery may leak electrolyte that can be
dangerous in contact with the skin and cause irritation to the eyes. Should this happen, wash the
affected part with copious amounts of water and seek immediate medical attention.
• When replacing batteries, replace with the same type and number of batteries or battery packs.
• Do not dispose of batteries in a fire. The batteries may explode.
• Do not open or damage the battery cases. Released electrolyte is harmful to the skin and eyes and
may be toxic.
• A battery can present a risk of electrical shock and high short-circuit current. The following
precautions should be observed when working on batteries:
•Remove watches, rings or other metal objects
•Use tools with insulated handles
•Wear rubber gloves and boots
•Do not lay tools or metal parts on top of batteries
•Disconnect charging source prior to connecting or disconnecting battery terminals
The UPS does not require maintenance by the user, however, battery maintenance in recommended in
accordance with IEEE Recommended Practice for Maintenance, Testing and Replacement of
Valve-Regulated Lead-Acid (VRLA) Batteries for Stationary Applications (IEEE Std 1188-1996). When
Linear Plus Series UPS User Instruction Manual 25
Interfaces
the batteries expire, trained battery service personnel must replace them. A certified disposal/recycling
company should carry out disposal/recycling of the UPS and/or batteries. Exhausted rechargeable
batteries are classified as “harmful toxic waste” and as such the law demands that they be disposed of/
recycled by an authorized recycling center.
The manufacturer’s service center is fully equipped to deal with such batteries, in accordance with the law
and with the greatest respect for the environment. Contact Technical Support to arrange for maintenance
and/or battery replacement.
The typical battery life cycle is 3 to 5 years, at an ambient temperature of 77°F (25°C), however battery
life is also dependent on the frequency and duration of mains failures or battery discharge cycles.
The BATTERY TEST (see section titled “Battery Test”) should be carried out periodically (6 to 12
months) in order to ascertain the general condition of the batteries.
Interfaces
The UPS is equipped with a serial interface port RS232 “COM 3” and an options interface slot “COM”.
These interfaces can be used for:
• Direct communication between UPS and a workstation/server.
• Integration of the UPS as client into a network with centralized monitoring via an optional
ManageUPS Net SNMP adapter installed in the “COM” slot.
• Transfer of operational states to external alarm systems via an optional voltage-free contacts
interface card, installed in the “COM” slot.
MopUPS Express Communication Software (download certificate) and serial cable are standard with the
UPS. To download the MopUPS Express software:
1. Go to http://connectivity.chloridepower.com/mopexpress
2. Complete the on line registration form.
3. Download MopUPS Express.
4. Run Setup, following the screen prompts for installation.
Other communication software packages and interface cables are available as options.
26Linear Plus Series UPS User Instruction Manual
Interfaces
Serial Interface COM 3
The 9-pole SUB-D connector (pin contacts) contains RS232 compatible signals.
NOTE: The interface COM 3 is electrically isolated from primary UPS circuits.
Fig. 16: Serial Interface RS232
Table 12. RS232 Pins
Pin 2RxD (receive RS232 compatible signals)
Pin 3 TxD (transmit RS232 compatible signals)
Pin 4not used
Pin 7not used
Pin 8not used
Pin 1not used
Pin 9not used
Pin 6not used
Pin 5SGN (signal ground for pins)
Interface Slot COMThe interface slot COM can be fitted with various optional interface cards.
Optional interface cards include:
• SNMP-adapter (ManageUPS
• Isolated contacts card.
Installation instructions are included with each card.
Linear Plus Series UPS User Instruction Manual 27
NET) for connecting the UPS to a network,
Interfaces
Optional Isolated
Contacts Card
Below are the descriptions of the interface signals for the isolated contacts card that may be installed into
the COM slot. This optional card provides potential-free signaling contacts and a shutdown input.
Fig. 17: Isolated Contacts Card Interface Signals
INV SHUTDOWN
This input (pin 3) is enabled with a high signal (+5 V to +12 V with respect to pin 4 (0 V)) and when
enabled, switches off the UPS after a mains failure has occurred. After the mains have been reestablished,
the UPS starts again independent of this signal status. This input must be high for one (1) second before
shut off will occur.
AC FAIL
This output provides an N/O (Normally Open) contact between pins 9 and 5, and an N/C (Normally
Closed) contact between pins 8 and 5. The 9-5 contact closes when the mains voltage fails at the UPS input
or when the mains voltage falls below the lower limit for a minimum of 10 seconds. This contact opens
approximately 850 ms after the mains have been reestablished. The 8-5 contact provides a mirror function,
opening when the mains voltage fails and closing when main power returns
LOW BATT
This output provides a N/O contact between pins 6 and 5 and an N/C contact between pins 7 and 5. The
6-5 contact closes when the battery has been depleted to the point that it can only supply current for
approximately three (3) more minutes at nominal load. The 7-5 contact provides a mirror function opening
when the battery is low.
BYPASS ACTIVE
This output provides an N/O contact between pins 1 and 5. The 1-5 contact closes after switching to the
bypass mode. In the bypass mode, energy to the output of the UPS is being supplied by the mains power
and not through the inverter.
SUM ALARM
This output provides an N/O contact between pins 2 and 5. The 2-5 contact closes when one of the alarms
“AC FAIL,” “LOW BATT” or “BYPASS ACTIVE” is active or when the indication “ALARM” at the
front-panel is on.
28Linear Plus Series UPS User Instruction Manual
Troubleshooting
Troubleshooting
If, in spite of the high reliability of this UPS, problems should occur, please check the following points
before contacting Technical Support:
• Is the mains voltage present at the UPS input?
• Is the input fuse blown or have circuit breakers tripped?
When contacting Technical Support, please have the following information ready:
• UPS information = model #, system #, serial # as per nameplate
• An exact description of the problem (what loads are being operated, does the problem occur
regularly or sporadically etc.) including any fault message description(s)
• For description of the indicators mentioned below see section titled “Control Panel”
Table 13. Troubleshooting Table
ProblemPossible causeCorrective Actions
Mains switched off.Switch on main switch.
No indication
No alarm
(UPS switched off)
“ON” LED does not illuminate, acoustic
alarm active at intervals
“ON” LED does not illuminate when mains
voltage present, acoustic alarm active at
intervals
FAULT indicator illuminates, acoustic
alarm active continuously
Battery run time less than specified
OVERLOAD message displayedOverload at UPS output.Reduce load to the permissible value.
No communication between UPS and PC
No mains voltage present.
Input fuse blown or input circuit breaker
tripped.
No mains voltage present.
Input fuse defective or input circuit breaker
tripped.
UPS error.Contact technical support.
OverheatingDecrease ambient temperature.
The fuse switch of the battery extension(s)
is blown.
Batteries are not fully charged.
Batteries are defective.Contact technical support.
Charging device is defective.Contact technical support.
Wrong serial connection cable.
Interface on the PC is being used by
another process or is defective.
Interference on the data cable.Lay cable differently. Reinstall cabling.
Have mains inspected by qualified
electrician.
Replace with fuse of same type or switch on
circuit breaker. If the problem persists,
contact technical support.
UPS operation. see “Control Panel Menus
and Displayed Text/Options” on page 20
Replace with fuse of same type or switch on
circuit breaker. If the problem persists,
contact technical support.
Check for open fuses.
Charge batteries (see “Batteries” on page 4)
and test backup time, see “Battery Test” on
page 25. If the problem persists, contact
technical support.
Check whether the correct cable has been
used (standard modem/null modem cables
are not permissible).
Check whether other software/service is
accessing the interface on the PC; try
selecting a different serial interface.
Linear Plus Series UPS User Instruction Manual 29
Appendix A: Features and Specifications
Appendix A:
Features and
Specifications
eatures
Your Chloride Linear Plus Series UPS features an on-line double conversion integrated isolation
transformer. This provides the highest level of protection from power line disturbances available.
• Hot-swappable, field replaceable batteries
• Scalable power and runtimes
• Integrated manual and automatic bypass
• Comprehensive front panel control/indicators
• Remote Power Off (RPO/ESD)
• Operates as a frequency converter
30Linear Plus Series User Instruction Manual
Appendix A: Features and Specifications
Specifications
Table 14. Specifications
UPS ModelLinear PlusLinear PlusLinear PlusLinear Plus
Part numberLT041XATLT061XATLT081XATLT101XAT
Maximum load (VA/W)4000 VA/2800 W6000 VA/ 4200 W8000 VA/5600 W10000 VA/7000 W
Acceptable input voltage range (VAC)176 to 276
Nominal input voltages (VAC)200/208/220/230/240
120/208/240 models with A in the part number
Available output voltage
Input frequency50/60 Hz ±5, auto-select, input frequency 40-70 Hz
Output current @ 208 V (Arms)19.2 27.938.446.0
Output frequency50/60 Hz ± 0.5%
Frequency tolerance, normal operationoutput frequency synchronized with mains frequency
Larger loads may be supported with 12, 16, and 20 kVA Linear Plus kits, created by paralleling two 6, 8, or 10
kVA units respectively. By adding a third UPS, a parallel-redundant system is created.
General information for paralleling UPSs:
• A maximum of 3 UPSs of the following ratings can be connected in parallel: 4 kVA, 6 kVA, 8 kVA, or
10 kVA
• The units to be connected in parallel must be of the same type. All configurable UPS parameters must be
the same.
• On 4 kVA, 6 kVA, 8 kVA, and 10 kVA: check settings of all parallel units. The table on page 21 shows
setup parameters (setup menu 5). The settings of output voltage must be the same.
General information for designing a parallel system:
• UPSs configured as a parallel system must all be configured for single input (same source to both main
and bypass) mode. Jumpers must be installed between JL1 & BL1 and between JL2 and BL2 on each
unit.
• When connecting mains and loads to a parallel UPS system additional distribution has to be taken into
account.
• A system of two parallel UPS blocks can be connected directly to the distribution if the system load
doesn’t exceed the nominal power of the UPS module (configuration: half load, two module parallel
system)
• If the systems load is greater, another UPS must be added to provide the additional capacity.
Fig. 18: Typical Parallel Set Up
Linear Plus Series User Instruction Manual33
Appendix B: Paralleling UPS Devices
Fig. 19: Paralleling Linear Plus with A in the part numbers)
34Linear Plus Series User Instruction Manual
Appendix B: Paralleling UPS Devices
Fig. 20: Paralleling Linear Plus (models with I in the part number)
Linear Plus Series User Instruction Manual35
Appendix B: Paralleling UPS Devices
Fig. 21: Paralleling Linear Plus (models with J in the part number)
Installing a Parallel
System
Step A
1. Ensure that the mains supply distribution is switched OFF.
2. Ensure that all the main1/bypass input breakers are switched to “OFF” on all UPSs. All terminals,
breakers and plugs of UPS can be found on the respective rear panels of UPS/batteries.
Step B
1. Remove jumper from parallel terminals (S1 & S2), from each of the UPSs blocks to be connected.
2. Connect the input terminals (per the “Connecting Power Cables” on page 10) from each of the UPSs
terminal blocks to the mains distribution.
3. Connect the output terminals (per “Output Terminal Voltage” on page 13) together from each of the
UPSs to the load distribution.
36Linear Plus Series User Instruction Manual
Appendix B: Paralleling UPS Devices
Step C
1. Remove cover of the parallel port of all parallel devices for linking between UPSs.
2. Use the 25-pin standard control cable to connect to one of the parallel ports (the cable is supplied with
the UPS). Parallel UPS are connected in-line, not in a circle, i.e., 2 cables connect 3 UPSs, 1 cable
connects 2 UPSs.
Step D
1. Close the UPS input breakers (main1/bypass) of UPS 1, then UPS 2, and UPS3.
2. Close the mains supply distribution circuit breaker. All bypass indicators should illuminate
simultaneously.
3. Switch the bypass switch (located under orange cover) on the rear of UPS 1 from “OFF” to “UPS”.
4. On UPS 2 repeat step 3.
5. On UPS 3 repeat step 3.
6. Close all UPS downstream circuit breakers/fuses to the load distribution.
NOTE: At this point all UPSs will be in parallel “BYPASS” mode. This mode will allow for full rated
output of the parallel system. UPS will have the “BYPASS” LED illuminated.
7. Press the “MENU” button on UPS 1.
8. Select submenu “CONTROL.”
9. Press “OK”, the LCD displays ‘TURN UPS TO ONLINE.”
10. Press “OK”, the UPS system will stay waiting in “BYPASS” mode.
11. Repeat step 7-10 on UPS 2 and UPS 3.
NOTE: After a few seconds, the “BYPASS” LEDs on UPSs will extinguish and all “ON” LED’s will
illuminate simultaneously, indicating that all parallel UPS inverters are running. The total load is spread
evenly across all UPSs.
Linear Plus Series User Instruction Manual37
Appendix B: Paralleling UPS Devices
38Linear Plus Series User Instruction Manual
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