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4) 4) After you After you remove one remove one UPS, you UPS, you need tneed to connect o connect the the shortshort
connection wire of the JP1 and JP2 located on the Terminalconnection wire of the JP1 and JP2 located on the Terminal
block of the UPS if the remained UPS system only remain oneblock of the UPS if the remained UPS system only remain one
UPS runs by itselfUPS runs by itself
5) 5) After all After all panels panels of the of the UPSs do UPSs do not not display anything display anything any any more,more,
remove the cover board of the parallel port on the UPSremove the cover board of the parallel port on the UPS
connected with the parallel cable of the UPS that need to beconnected with the parallel cable of the UPS that need to be
removed. Remove the parallel cable and screw the cover boardremoved. Remove the parallel cable and screw the cover board
of the parallel port back again.of the parallel port back again.
6) 6) Remove the Remove the cover cover board board of thof the e parallel parallel port port located located on on the the UPSUPS
that need to be removed and remove the parallel cable, andthat need to be removed and remove the parallel cable, and
then screw the cover board back again.then screw the cover board back again.
7) 7) Turn Turn on on all of all of the the input mains input mains breakers of breakers of the the remained remained UPSs.UPSs.
After all UPSs transfer to the Bypass mode, set the UPSAfter all UPSs transfer to the Bypass mode, set the UPS
maintenance switch from “BPS” to “UPS” and screw themaintenance switch from “BPS” to “UPS” and screw the
maintenance cover board back again. Then turn on all of themaintenance cover board back again. Then turn on all of the
UPSs in the Line mode to perform the parallel operation.UPSs in the Line mode to perform the parallel operation.
8) 8) If If the the removed removed UPS UPS will will be be used used in in a a stand-alone stand-alone mode, mode, thenthen
JP1 and JP2 on the terminal block should be connected with aJP1 and JP2 on the terminal block should be connected with a
short connection wire.short connection wire.
Combine machine warning:Combine machine warning:
1) 1) When UWhen UPS PS combine combine system system work work at at inverter inverter mode, mode, make make suresure
that all UPS maintain switches at the same place, that is to say,that all UPS maintain switches at the same place, that is to say,
be at the position of “UPS”, or be at the position of “BPS”.be at the position of “UPS”, or be at the position of “BPS”.
2) 2) When turning When turning on thon the e UPS cUPS combine ombine system bsystem before enter efore enter intointo
inverter mode, UPS output switch must at the “OFF” position.inverter mode, UPS output switch must at the “OFF” position.
3) 3) When UWhen UPS PS combine combine system system work work at at inverter modeinverter model, l, please please dodo
not operate any UPS maintain switch.not operate any UPS maintain switch.
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