Unipower INV2500-HS User manual

PRICE: $25.00
INV2500-HS and INV5000-HS
TELECOM INVERTERS
OPERATING MANUAL
www.unipowertelecom.com
Manual No. INV-802-3 © 2002 UNIPOWER Corp.
All Rights Reserved
UNIPOWER Telecom, Division of UNIPOWER Corporation
09/4/02 INV2500HS-5000HS-Man-Rev3
NORTHAMERICA•3900CoralRidgeDrive,CoralSprings,Florida33065,USA•Tel:[phone]•Fax:[phone]•[e-mail]
EUROPE•ParklandBusinessCentre, ChartwellRoad,Lancing BN15 8UE, ENGLAND •Tel:[phone]•Fax: [phone] •[email protected]

CONTENTS
SECTION TOPIC PAGE
1.0 Introduction 1
2.0 ImportantFeatures 1
3.0 ProductLine 3
4.0 Safety Warnings 3
5.0 Warranty 4
6.0 UnpackingandInspection 4
7.0 DescriptionofOperation 5
8.0 Front andBackPanel Descriptions 5
9.0 ElectricalSpecifications 7
10.0 MechanicalDimensionsofShelves 8
11.0 Safetyand IndustryStandards 8
12.0 OperatingInformation 10
13.0 ParallelOperation 13
14.0 InstallationandTesting 15
15.0 InverterApplication 17
16.0 ReplacingAnInverterModule 18
17.0 Maintenance 19
18.0 TroubleshootingGuide 19

ILLUSTRATIONS
FIGURE TITLE PAGE
1 INV2500-HSandINV5000-HS InverterModels 2
2 Front& Backof INV2500-HS Module 6
3 Front& Back ofINV5000-HS System 6
4 MechanicalDimensions ofINV5000-HS &INVR2U-HS Shelves 9
5 INV2500-HSInverter Output Waveforms 11
6 INV2500-HS&INV5000-HS OverloadCharacteristic 12
7 Connectionsfor ORingForm C RelayOutputs onINV5000-HS 12
8 InverterModulePinConnections 14
9 Two115VAC INVR2U-HSs inParallel Using ACDistribution Panel 16
10 OutputConnections forInverters 16

1
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
1.0 INTRODUCTION
1.1 ThisOperatingManual shouldbe readthrough carefullybeforeinstalling and
operatingtheINV2500-HS invertermodulesor INV5000-HSinverter
systems.SeeFigure 1.
1.2 TheINV2500-HSis a2500volt-ampere hot-swap,telecom invertermodule.It
convertsa nominal 48VDCinput into a115VACoutput at 50or 60Hz. These
modulesaredesigned togo intoa 19-inch,hot-swapcompatible shelf,
INVR2U-HS,which holds one ortwo units. When twounits are used inthis
shelftheyareautomatically connectedinparallel andsynchronizedtopro-
duce5000 volt-amperesat 115VAC output(44 amperes).Or theycan be
operatedina1+1 redundantmodeat 2500volt-amperes.
1.3 For230VACoutput at 50or 60Hz thereare two otherinverter models,desig-
natedINV5000-HS-230, whichuse twoINV2500-HS units connectedin
seriesintheir shelfto givethe highervoltage. Seethe productline designa-
tionin Section 3.0.The output is230VAC at22 amperes, or5,000 volt-
amperes.
1.4 The48VDC nominalinput hasa range of42 to56VDC. Theinverters achieve
90%efficiencyand 7VA percubic inch powerdensity.Input andoutput are
bothcircuitbreaker protected.They havehigh surgecapabilityfor starting
loadssuch asmotors, butthe output breakerquickly tripsif powerattempts
toflowback intoa faultedinverter.
1.5 Theseinverters canbe paralleledfor higheroutput poweror for N+1redun-
dantapplications.They arefully isolatedfrom thebattery.Frontpanel LEDs
indicateinverterstatus, andFormC relayalarmcontacts areavailableon the
back.The unitsare self-cooledby internalfans.
2.0 IMPORTANT FEATURES
Thefollowing isa summaryof the importantfeatures ofthe INV2500-HSand
INV5000-HSinverters:
uTwoMounting PositionsHigh: 3.5 Inches
u2500VA Output for INV2500-HS
INV2500-HS AND INV5000-HS TELECOM INVERTERS
OPERATING MANUAL

2
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
(a). INV2500-HS Inverter Module
(b). INV5000-HS Inverter System
Figure 1. INV2500-HS and INV5000-HS Inverter Models

3
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
u5000VA Output for INV5000-HS
u7VA perCubic InchPower Density
u115VACOutput at 22 or44 Amperes
u230VAC Outputat 22 Amperes
uLowDistortion 50or 60Hz SineWave
u42 to 56VDC Input
uFullyIsolatedfrom BatteryInput
u90%Typical Efficiency
uUpto300% SurgeCapability
uPowersReactiveLoads
uCircuitBreaker Input& OutputProtection
uN+1RedundantOperation
u19-or 23-InchRack Mounting
uOvertemperatureProtection
uFormCRelay AlarmContacts
uLEDStatus Indicators
uRearSafetyCoveronShelves
3.0 PRODUCTLINE
Table 3-1 Telecom Hot-Swap Inverter Modules
Table 3-2 Hot-Swap Inverter Shelf
Table 3-3 230VAC Inverter Systems
4.0 SAFETY WARNINGS
4.1 Thesetelecominvertershavehazardousexternal andinternalvoltages. They
shouldbehandled, testedandinstalled onlyby qualifiedtechnicalpersons
whoare trainedin theuse ofpower systemsand arewell awareof thehaz-
ardsinvolved.
4.2 Theinputand outputterminals areat hazardousvoltagepotentials. Do not
touchtheseareas whenpoweris applied.
MODEL RACK SIZE HEIGHT CAPACITY
INVR2U-HS 19 or 23 Inches 2RU (3.5 Inches) 2 INV2500-HS
MODEL INPUT OUTPUT FREQ.
INV2500-HS-60 42-56VDC 115VAC@22A 60Hz
INV2500-HS-50 42-56VDC 115VAC@22A 50Hz
MODEL INPUT OUTPUT FREQ.
INV5000-HS-230-60 42-56VDC 230VAC@22A 60Hz
INV5000-HS-230-50 42-56VDC 230VAC@22A 50Hz

4
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
4.3 Whenoperating theseinverters, thechassis groundterminal mustbe con-
nectedtosafety groundto minimizeelectrical shockhazardand toensure low
EMI(electromagneticinterference).
4.4 Theinternalvoltages areathazardous potentials. Theinvertercovers should
notberemoved. There arenouser-serviceable componentsin theseunits.
Removingthecovers oftheinverters willvoidthe warranty.
5.0 WARRANTY
All products of UNIPOWER Telecom, a division of UNIPOWER Corporation, are warranted for
two (2) years from date of shipment against defects in material and workmanship. This warranty
does not extend to products which have been opened, altered or repaired by persons other than
persons authorized by the manufacturer or to products which become defective due to acts of
God, negligence or the failure of customer to fully follow instructions with respect to installation,
application or maintenance. This warranty is extended directly by the manufacturer to the buyer
and is the sole warranty applicable. EXCEPT FOR THE FOREGOING EXPRESS WARRANTY,
THE MANUFACTURER MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICU-
LAR PURPOSE. As the sole and exclusive remedy under this warranty, the manufacturer, at its
option, may repair or replace the non-conforming product or issue credit, provided the
manufacturer’s inspection establishes the existence of a defect. To exercise this remedy, the
buyer must contact the manufacturer’s Customer Service Department to obtain a Return Material
Authorization number and shipping instructions. Products returned without prior authorization
will be returned to buyer. All products returned for repair must be shipped freight prepaid to
UNIPOWER. If the buyer fails to fully comply with the foregoing, the buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost
sales, injury to person or property or any other incidental or consequential losses) shall be
available to the buyer.
6.0 UNPACKING AND INSPECTION
6.1 ThisINV2500-HS orINV5000-HS was carefullytested, inspectedand pack-
agedfor shipment fromour factory. Upon receipt ofthe unit, itshould be
carefullyunpackedand inspectedforany damagein shipment.
6.2 Ifthere isevidence of damage,do notattempt to testthe unit. The freight
carriershouldbe notifiedimmediately anda claimfor thecost ofthe inverter
shouldbe filedwith the carrierfor directreimbursement. Be sure toinclude
themodeland serialnumber ofthe damagedunitin allcorrespondence with
thefreight carrier. Alsosavethe shippingcarton and packingmaterial as
evidenceofdamage forthe freightcarrier’sinspection.
6.3 UNIPOWERTelecom willcooperate fullyin caseof any shippingdamage
investigation.

5
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
6.4 Alwayssave thepacking materialsfor lateruse inshipping theunit. Never
shiptheinverter withoutproperpacking.
7.0 DESCRIPTION OF OPERATION
7.1 TheINV2500-HSmodules employMOSFET andIGBT powersemiconductor
switcheswithadvanced, high-frequency, pulsemodulationtechniques to
producealow-distortion, 50or 60Hzsine waveoutput with90% efficiency
and7VAper cubic inchpower density. Asynchronization circuitlets two or
moreinvertermodules operateinparallel withtheiroutputs inphase-synchro-
nizationandcurrent shared.
7.2 TheINV5000-HS-230 invertersystem consistsof two INV2500-HSsoper-
atedin seriesfor a230VAC outputat 5,000volt-amperes (22A). Theseries
connectionof theunits ismade internally inthe shelf.Each ofthe two inverter
moduleshas itsown inputand output breakers,indicator LEDsand FormC
relaycontacts. Thetwo invertermodules in theINV5000-HS aredifferentin
thattheir outputsare 180oout ofphasewith eachother.
7.3 TwoINV2500-HS invertermodules in anINVR2U-HS shelfare connectedin
parallelin theshelf andbecome an invertersystem witha 115VACoutput at
5,000volt-amperes(44A).
7.4 For the purpose of this manual, the INV5000-HS-230 and two INV2500-
HS modules in an INVR2U-HS shelf are both 5,000 VA inverter systems
and will be referred to as an INV5000-HS where the generic meaning is
conveyed. Whilethe twodifferentshelves areidentical insize and appear-
ance,theydifferin theirinternal moduleconnection(series orparallel).
8.0 FRONT AND BACK PANEL DESCRIPTIONS
8.1 Figure2 shows thefront and backof an INV2500-HSinverter module. On
theleft side of thefront panel of theINV2500-HS is the inputcircuit breaker.
To theright are thetwo cooling fansand theoutput circuit breaker.Above the
outputbreaker from thetop are thegreen LED indicatorsfor Input OK,Sync
OK and Output OK.
8.2 Onthe INV2500-HSback panel onthe rightside is thehot-swap connector
whichcontainsall powerand signalconnections.
8.3 Figure3 shows the front and back ofan INV5000-HS. Each front half (side A

6
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
Figure 2. Front and Back of INV2500-HS Module
18.32
(465) ä
ä
ä
ä
3.46
(87.9)
Figure 3. Front and Back of INV5000-HS System
INV5000-HS FRONT VIEW
INV5000-HS BACK VIEW
ASIDE B SIDE
INV2500-HS BACK VIEW
INV2500-HS FRONT VIEW
8.50
(216) ä
ä
ä
ä
3.32
(84.3)
HOT-SWAP
CONNECTOR
ä
ACOUTPUT
BREAKER
DC INPUT
BREAKER
ACOUTPUT
BREAKER
DC INPUT
BREAKER
ä ä ä ä

7
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
orside B) ofthis inverter is aINV2500-HS. The backpanel has a transparent
plasticsafety cover. The INVR2U-HSshelf with twoINV2500-HS inverters in it
isidentical inappearance anddimensions to theINV5000-HS, bothfront and
back.Bothunits havea frontretention panelover theINV2500-HS modules.
8.4 Onthe INV5000-HS backpanel to the leftare the ACoutput screw terminals.
Atthe center is a terminalstrip with the Form Crelay contacts N.O., C and
N.C.for each side (A and B) of the inverter. To the right are the inputbus bars
with no. 1/4-20 studs. At the lower far right is the no. 10-32 stud chassis
groundconnection.
9.0 ELECTRICAL SPECIFICATIONS
Specifications typical at 48V input, full load and 25°C unless otherwise noted. Asterisk (*) means
specification is same as center column.
INPUT
Voltage Range ..................................................... * ................................ 42-56 VDC................................ *
Input Current, Full Load, 48VDC .................. <60A DC ..........................<120ADC.......................... <120ADC
Input Current, No Load, 48VDC..................... <1A DC ............................. <2ADC.............................. <2ADC
Input Protection....................................................* ......................100A Circuit Breaker(s)...................... *
EMI Filter, Conducted ..........................................* .....................FCC2078 pt.15J Curve A .................... *
EN55022 Curve A
Voice Band Noise/ A-H Battery ................<32dBrnC/240 .................. <32dBrnC/480.................. <32dBrnC/480
OUTPUT
Voltage, Full Load..........................................115VAC ............................ 115VAC............................ 230VAC
Voltage, No Load...........................................120VAC ............................ 120VAC............................240VAC
Current, Max. ................................................22A RMS .......................... 44A RMS.......................... 22A RMS
Frequency, ± 0.1%...............................................* ................................ 50 or 60Hz................................ *
Total Harmonic Distortion .................................... * ..................................... <2% ..................................... *
Load Crest Factor ................................................* ...................................2.8 to 1 .................................. *
Output Protection.................................................* ....................... 25A Circuit Breaker(s)....................... *
Surge Capability ..................................................* ............................... Up to 300% ............................... *
Reactive Loads ....................................................* ....................+90° to - 90° Phase Angle ................... *
Efficiency ............................................................. * ..................................... 90% ..................................... *
SAFETY STANDARDS ......................... * ................... UL1950, CSA22.2 No.950, ................... *
EN60950
STATUS INDICATORS
Input OK............................................................... * ................................Green LED ............................... *
Sync OK............................................................... * ................................Green LED ............................... *
Output OK ............................................................ * ................................Green LED ............................... *
Form C Relay Alarm Contacts.............................* .......................... Inverter Fail Alarm..........................*
INV2500-HS INV5000-HS-230
2 INV2500-HS
IN INVR2U-HS

8
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
ENVIRONMENTAL
Operating Temp. Range ...................................... * ............................... 0°C to 70°C ............................... *
Output Current Derating ......................................* ...................... 2.5%/°C, 50°C to 70°C ...................... *
Storage Temp. Range .........................................* ............................ -40°C to +85°C ............................ *
Humidity...............................................................* ................. 0% to 95%, Non-Condensing ................. *
Cooling ................................................................* .............................. Internal Fans .............................. *
PHYSICAL SPECIFICATIONS
Case Material ......................................................* ................................ Aluminum ................................ *
Finish, Front Panel & Shelf..................................* .......................... Powder Coat Gray.......................... *
Dimensions, Inches (mm)
INV2500-HS............................... 3.32 H x 8.50 W x 12.00 D
(84.3 x 216 x 305)
INVR2U-HS Shelf .................................................................3.46 H x 18.32 W x 16.38 D
(87.9 x 465 x 416)
INV5000-HS-230 ..................................................................................................... 3.46 H x 18.32 W x 16.38 D
.............................................................................. (87.9 x 465 x 416)
Rack Mounting Width ......................................* ............................ 19 or 23 Inches ............................ *
10.0 MECHANICAL DIMENSIONS OF SHELVES
Figure4 showsthe mechanical dimensionsfor theINVR2U-HS and INV5000-HS
shelves.The shelvesare identicalat 16.38inches (416mm)deep; withthe rear
plasticcoverthey are18.00 inches(457mm) deep.
11.0 SAFETY AND INDUSTRY STANDARDS
11.1 TheINV2500-HS andINV5000-HS invertersmeet thefollowing safety
certifications:
STANDARD AGENCY
UL1950 UL
CSA22.2 No.950 CUL
EN60950 DEMKO
11.2 TheINV2500-HS andINV5000-HS invertersare CEmarked toindicate
conformance totheEuropeanUnion’sLowVoltageDirective.
11.3 Inputconducted EMImeets FCC20780 part15J Curve Aand EN55022
CurveA.
11.4 Inputvoice band noiseis less than32dBrnC for a singleINV2500-HS with a
240ampere-hour batteryor anINV5000-HS or twoINV2500-HSs witha 480
ampere-hourbattery.

9
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
18.32
(465) ä
ä
ä
ä
3.46
(87.9)
Figure 4.Mechanical Dimensions of INV5000-HS & INVR2U-HS Shelves
17.38
(441)

10
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
12.0 OPERATING INFORMATION
12.1 Input Voltage. Thesetelecom invertersoperate offanominal 48VDCinput
sourcewhich maybe abattery orother DCsource. Theinput voltagerange is
42to 56VDC. Inputconnections on the backof the INV5000-HSand
INVR2U-HSare to bus bars with no. 1/4-20studs.
12.2 Output Voltage. The outputvoltage for an INV2500-HSis 115VAC atfull
load,120VACat no load;for an INV5000-HS-230it is 230VACat full load,
240VAC atno load.See Figure 5(a).Frequency is 50or 60Hz,±0.1%. The
outputvoltagehas totalharmonic distortionof lessthan 2.0%.The load
currentcrest factor is 2.8to 1, and surgecapability is up to300%. The output
willdrivereactive loadswith upto ±90ophaseangle. Theoutput connectors
arescrew terminals onthe back ofthe INV5000-HS orINVR2U-HS.
12.3 Output Power. Maximum outputpower for anINV2500-HS is 115VACat
22ARMS givinga maximum of2530 volt-amperes.For an INV5000-HSit is
230VAC at22A RMS,giving amaximumof 5060volt-amperes. Exceeding
thesevaluesmay causeelectronic shutdownof theoutput. Fulloutput power
isproduced atup to50oCambienttemperature. Abovethis, outputcurrent
mustbederated at2.5%/oC.Maximum operatingtemperature is70oC,at
whichthe outputcurrent must bederated by50%.
12.4 Overload Characteristic. Theseinvertersincorporate electronicshutdown
circuitry;shutdowntakes placeduring anoverload, beforethe output circuit
breakertrips.Figure 5shows INV2500-HSoutput voltageandcurrent wave-
formsfor afull load step,sudden overload,and short circuit.Figure 6 shows
shutdowntime versusoutput current forboth theINV2500-HS and INV5000-
HS.Below isa table thatshows thesame data ina differentformat:
Table 12-1. Typical Load Current vs. Shutdown Time
Asthe tableshows, the INV2500-HSand INV5000-HSare capable ofhan-
dlinglargeoutput surgecurrents, specificallymore thanthree timesrated
outputcurrent for1/4 second, morethan twicerated output currentfor 1
secondand more than1.5 times ratedoutput current for10 seconds. Ifthe
surgeexceedsapproximately 318%ofrated outputcurrentor exceedsthe
114-173% 10 sec.
173-223% 1 sec.
223-318% 0.25 sec.
PERCENT OF
RATEDLOAD SHUTDOWN
TIME

11
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
Figure 5. INV2500-HS Inverter Output Waveforms
(a) Full Load Step. Vo (top) & Io (bot@20A/cm).
(c) Short Circuit Applied. Vo (top) & Io (bot @50A/cm).
1
2
1
2
1
2
(b)Sudden Overload Applied. Vo (top) & Io (bot @ 50A/cm).

12
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
Figure 6. INV2500-HS & INV5000-HS Overload Characteristic.
01020304050607080
0 20 40 60 80 100 120 140 160 INV2500-HS or 230VAC INV5000-HS 2- INV2500-HS IN INVR2U-HS
Figure 7. Connections for ORing Form C Relay Outputs
(a) Normally Open (b) Normally Closed
OutputRMS Amperes
Shutdown Time, Sec.

13
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
shutdowntimes shownin the table,the outputwill be shutdown and mustbe
resetby turning both inputand output circuit breakersoff.After this, the
inputbreaker(s) shouldbe turned backon (upposition); after theOutput OK
LED(s)come onthe output breaker(s)should beturned back on(up posi-
tion).
12.5 Grounding. TheDC input ground,AC output ground,AC neutral and
chassisground areall incommon. The chassisground shouldbe connected
tosystemground.
12.6 Status Indicators. ThreegreenLEDs indicatethe operatingstatus ofeach
INV2500-HSinverter module.They are(from topto bottom):Input OK,Sync
OK and Output OK.
12.7 Form C Relay Contacts. Thesecontacts have normallyopen (N.O.) and
normallyclosed(N.C.) positionsfornormal operationof eachinverter.See
Figure3 for connections.Note that thereis a separateset of contactsfor
eachhalf (A andB sides) of theinverter. Ifit is desiredto monitor the inverter
asa whole, thetwo sets ofcontacts may beconnected as shownin Figure 7
togive an OR functionfor either set ofcontacts.
12.8 Sync Connections. Thereare+Sync and-Sync terminalson theterminal
block.Whentwo ormore invertersare connectedinparallel theseSync
terminalsmustbeconnected together,observingthe polarities.
12.9 Inverter Module Connections. If theINV2500-HS inverter moduleis oper-
atedortested separatelyfrom theshelf, connectionsshouldbe madeto the
J1connector witha matingconnector andthe pinconnections givenin Figure
8.
13.0 PARALLEL OPERATION
13.1 TheINV2500-HSand INV5000-HSSeries invertersare designedtooperate
inparallel forhigher outputcurrent. For theINV2500-HS, theunits areauto-
maticallyconnected inparallel inthe INVR2U-HS shelf.The INV5000-HS
230VAC unitshave twoINV2500-HS invertersconnected in seriesin the
shelf.Twoor moreINV5000-HS-230 invertersmaybe connectedin parallel
foradditionaloutput poweror forN+1 redundantoperation. Thisis doneby
connectingallinputs inparallel andall outputsin parallel(line, neutral,line),
althoughthe DCinputs couldcome fromtwo separatesources. Inaddition,
thesync terminalsmust beconnected together,+Sync to+ Sync and-Sync
to-Sync. TheSync terminalsare usedonly forparallel connectionof twoor

14
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
Figure 8. Inverter Module Pin Connections
J1Connector:
PositronicsGFSH01M182
MatingConnector:
PositronicsGFSH01F10
Contacts No. FC112N2 for
Pins1, 3,5, 7,8, 25-28and 30-33.
Conacts No. FC720N2 for
Pins14-18.
J1
3 2 1
6 5 4
9 8 7
11 10
13 12
15 14
17 16
19 18
21 20
24 23 22
27 26 25
30 29 28
33 32 31
PIN FUNCTION
1 AC Line
2NC
3 AC Line
4NC
5 AC Neutral
6NC
7 AC Ground
8 AC Neutral
9NC
10 NC
11 NC
PIN FUNCTION
12 NC
13 NC
14 +Sync
15 -Sync
16 Form C: NC
17 Form C: C
18 Form C: NO
19 NC
20 NC
21 NC
22 NC
PIN FUNCTION
23 NC
24 NC
25 +DC In
26 -DC In
27 -DC In
28 +DC In
29 NC
30 -DC In
31 +DC In
32 +DC In
33 -DC In
NC = No Connection
J1 Connections

15
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
moreinverters.Currentsharing betweenparalleledinverters is±10%.
13.2 Alternatively, separatesourcesmay beusedfor theinputs totheseinverters
whiletheoutputs areconnected inparallel. Ineithercase, outputloads
shouldhaveindividual distributioncircuitbreakers. Thefollowing tableshows
outputcurrentand totalvolt-amperesfor invertersconnected inparallel.As
mentionedearlier,INV5000-HS refersto boththe 230VAC INV5000-HS-230
andtwo INV2500-HSinverters in anINVR2U-HS shelfproducing 115VAC.
Table 13-1. Output For Paralleled Inverters
13.3 FourINV2500-HSinverters intwo INVR2U-HSshelves connectedin parallel
couldbeused toproduce 10kilovolt-amperes of115VAC orcould alsobe
usedasa 3+1redundant inverterproviding 7.5kilovolt-amperesof 115VAC to
aload.
13.4 Figure9 showsfour INV2500-HS invertermodules intwo INVR2U-HS
shelvesconnected inparallel to give10KVA ofAC output at115VAC. TheAC
outputis distributed bya DPAC1UTAC Distribution Panelmade by UNIP-
OWERTelecom. Note thatonly 115VACinverters canbe used withthe
DPAC1UT distributionpanel andnot the 230VAC INV5000-HS-230.230VAC
INV5000-HSsrequirebreakers onboth linesides, andthis isnot available
withthe DPAC1UT.Note alsothat only the“T” (Terminal Strip)Option of the
DPAC1Ucan be usedwith these invertersand that, asshown in Figure9,
theA side ACinput terminals mustbe strapped inparallel, i.e., A1Gto A2G,
A1Nto A2N and A1Lto A2L; in thesame way, the B sideAC input terminals
mustalsobe strappedin parallel.
14.0 INSTALLATION AND TESTING
14.1 Theinverteror invertersshould beinitially testedin theirshelves. For23-inch
rackmountingusepanelextenders.
14.2 Putall inputand output circuitbreakers inthe off(down) position.See Figure
3.Removethe rearplasticsafety cover.
14.3 Connectthe input batteryto the -48VDCand 48VDC Returninput bus bars
1 2.5 22
2 5.0 44
3 7.5 66
4 10.0 88
NO.OFINV2500-HS
INVERTERS KVA RATING OUTPUT
AMPS 1 5.0 44 22
2 10.0 88 44
3 15.0 132 66
4 20.0 176 88
NO.OFINV5000-HS
INVERTERS KVA
RATING 115VAC
AMPS 230VAC
AMPS

16
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
Figure 9. Two 115VAC INVR2U-HSs in Parallel Using AC Distribution Panel
Figure 10. Output Connections for Inverters
AC OUTPUTS
INVR2U-HS INV5000-HS-230

17
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
bymeans of the1/4-20 studs. Connect theinput ground (10-32stud) to the
systemground. Makesure thecorrect polarityis usedand makesure the
connectionsareclean andfirm.Reversed inputpolaritycould causedamage
totheinverter.
14.4 Connectthe ACoutput cableto theproper outputscrew terminals.See
Figure10 forthe correct connectionfor 115 or 230VAC outputversions.
Connectaload ofapproximately10 amperesacross theoutputof theinverter.
14.5 To powerup the inverter, turnthe A side (left)DC input circuitbreaker on by
movingthe toggle tothe up position. TheA side fansand input OK andSync
OKLEDs shouldcome onfollowed by theOutput OKLED approximatelyfour
seconds later. After the Output OK LED is on, turn on the A side AC output
breakerby placingthe toggle inthe upposition. Next, turnthe B side(right)
DC input breaker on. The B side fans and Input OK and Sync OK LEDs
shouldcomeon followedby theOutput OKLED approximatelyfour seconds
later.After the Output OK LEDis on, turn on theB side AC output breaker.
ChecktheAC voltageacross theload withadigital ACvoltmeter.Thevoltage
shouldbebetween 115 and120VACorbetween 230and 240VAC, depend-
ingonthe model.
14.6 ChecktheForm CRelay contactswith anohmmeter.SeeFigure 3.Measure
theresistance betweenthe N.O.contacts andC contacts.They should
indicateanopen. Measurethe resistancebetween theN.C.contacts andthe
Ccontacts. Theyshould indicatea short.
14.7 Turnoffthe AC output circuitbreakers first, followedby the DC inputbreak-
ers,by placingthe togglesin the downposition. Testeach inverter inthe
mannerdescribedabove.
15.0 INVERTERAPPLICATION
15.1 Intheactual applicationof theinverter,followthe procedurein sections14.2
through14.6,except theinverter shouldbe connectedto itsactual load.The
loadsconnectedto theoutputof theinverter shouldalwayshave theirown
individualcircuitbreakers. Make connectionsto theForm Crelay contactsas
required.Thenre-install therear plasticsafety cover.
15.2 For twoormore invertersin parallel,make theinput andoutput connections
tothe invertersas described inSection 13.0.See Figure 9.Put all output
distributioncircuit breakersin theoffposition. Connectthe syncterminals
togetherobservingproperpolarity.