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16
T1
C1
C2
B1
7 – Parallel Redundancy Operation (Optional)
DANGER! LETHAL HIGH VOLTAGE HAZARD!
All wiring should be performed by a qualified electrician, in accordance with the warnings in this manual and all applicable
electricalandsafetycodes.Incorrectwiringmaycauseseriouspersonalinjuryandpropertydamage.Read,studyand
understand the warnings listed in Section 2 – Important Safety Instructions before proceeding.
Unpacking the Parallel Kit
Theparallelkitshouldincludetheseparts:
•2RJ45ParallelCommunicationCables
C1
,
C2
•1ParallelCommunicationBracket
B1
•1CableTie
T1
UPS System Placement
InordertominimizethepossibilityofdamagetotheUPSsystemandmaximizeitsoperationallifespan,followthelocationwarningslistedin
Section 2 – Important Safety Instructions. Remember to keep at least 30 cm clearance from the rear panel of the UPS system to the wall and
do not block any of the UPS system’s front or rear ventilation openings.
Warning: The UPS system is very heavy—be careful when moving or lifting it.
Installation
1. To avoid noise interference, install each wire and cable separately to the input, output and battery.
2. Keepallinput,outputandbatterywiresandcablesawayfromallconnectingwiresforparallelfunctionsandcontrolsignals,includingRJ45,
RS-232,RS-485,USBandEPO.Ifthisisnotpossible,setthemat90°anglesoratleast20cmapart.
3. Warning:TheUPSsystemincludesanEMIfilter.Topreventpotentialleakageofhazardouscurrent,confirmthattheACsupply
circuit is securely grounded.
Start-up Procedure
1. Position the UPS systems as specified above.
2. Connect the parallel communication cables
C1
,
C2
tothe“Ring”loopatamaximumlengthof7m.Securethecableswiththeparallel
communication brackets
B1
.
3. ArrangethepowercablesandthecontrolsignalcablesaccordingtoUPStype.Makesurethatallcircuitbreakersattheinputandoutput
ends are set to OFF.
4. For maintenance purposes, you may wish to purchase a manual bypass master panel (optional).
5. SettheterminalresistorsofonlytwoparallelUPSsystemstotheONposition.(Forthreeunitsinparallel,switchontheterminalresistorsof
UPS#1and#3only.Forfourunitsinparallel,switchontheterminalresistorsofUPS#1and#4only.)
6. Turnontheutilityinputbreaker.ConfigureeachUPSsystem’soperatingmodetoparallelmode(P02)andsettheIDs(e.g.UPS1,ID=1)of
the respective UPS systems. (See Section 6-6 – UPS System Settings and Measurements.)AllparallelUPSsystemparametersexceptID
number must be same, including the number and type of connected battery packs.
7. Ifanexternalmanualbypassmasterpanel(optional)isinstalled,makesuretheswitchisinthe“Bypass”position.ChecktoseeiftheUPS
system is in bypass mode with output voltage available.
8. Turn on the output breaker and ensure that the connected loads are supplied with power via the manual bypass master panel.
9. TurnontheoutputbreakeroftheUPSandturntheswitchofthemanualbypassmasterpanelto“UPS”position.Theconnectedloadswill
be supplied with power via the UPS bypass loop.
10. TurnoneachUPSsystemindividuallyandmakesureitisininvertersupply(normal)mode.Installationisnowcomplete.