Forza Elipse Series, Руководство по обслуживанию

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the voltage between the JP1 and JP2 on the terminal block of each UPS to check if the
voltage is less than 1V. Or measure the impedance value between JP1 and JP2 to check if
the resistor is short circuit. If the voltage difference is more than 1V, the output relay of the
UPS may have problem and can not be closed.
11. Measure the voltage between JP2s of each UPS (JP2 of Unit I-JP2 of Unit II, and so on) to
check if the voltage value is less than 5V (Generally 2V). If the difference is more than 5V.
You need to check that whether the parallel cable or the parallel board is normal.
12. Measure the inverter output voltage between JP2 and input neutral on each UPS, the
inverter output voltage of each UPS should be as close as possible, if the voltage
difference higher than 1V, please execute a calibration process.
13. Turn off all of the UPS systems that are running. After all of them transfer to the bypass
mode, disassemble the maintenance cover of each UPS and turn the maintenance switch
from “BPS” to “UPS” and screw the maintenance cover right back.
14. Turn on the UPSs and the system work in parallel operation.
5.3.2.2 Operating procedure of adding a new UPS to the parallel system
1. Prepare the input and output cables, the input/output breaker (switch) and the parallel
cable.
2. Keep the input and output switch of the UPS to add-in remain off. Connect the input and
output cables as well as the battery pack according to the marking on the terminal block.
Remove the short connection wire between JP1 and JP2 on the terminal block.
3. Turn off the UPS that are running. After all of the UPSs that are running transfer to the
Bypass mode.
4. Disassemble the maintenance bypass switch cover each UPS (including the one to add in)
and turn the maintenance bypass switch from “UPS” to “BPS” state, then switch off the
input breaker on rear panel of each UPS.
5. If the UPS system that is running is single UPS, you need to remove the short connection
wire between JP1 and JP2 on the terminal block.
6. Disassemble the cover of the parallel port on the new UPS, plug one end of the parallel
cable into parallel communication port and screw up the connector; the other end of the
parallel cable is connected to rest parallel communication port of the working UPS, screw
up the connector, screw covers of the parallel port of all UPSs.