Xtreme Power Conversion Corporation
M90S Service Manual
Page 27
Uninterruptible Power Supply
Communication protocol setting
Display setting
Figure 7.1 Hyper terminal setting
2. After you finished the setting, you can type the command in the comma nd area.
3. +BUS voltage regulation: Type “BUSP+/- XX” command (XX is two digits from 00 to 19), then
press the “ENTER” key, +BUS voltage will rise (drop) a little step.
4. -BUS voltage regulation: Type “BUSN+/- XX” command (XX is two digits from 00 to 19), then press the
“ENTER” key, -BUS voltage will rise (drop) a little step.
5. INV output voltage regulation: Type “V+/- X” command (X is a digit from 0 to 6), then press the
“ENTER” key, output voltage will rise (drop) a little step.
6. INV output voltage setting: Type “VXXX” command (XXX is 208/220/230/240), then press the
“ENTER” key, INV output voltage will be set to 208V/220V/230V/240V.
7. charger current setting: CHGC XX” command (XX is from 0 to 4 ), then press the
“ENTER” key, Charger current will be set to 1A~4A
Regulation Process for Single UPS:
1. BUS voltage regulation: When the UPS runs into AC mode, measure ±BUS voltage with the
multimeter, and then regulate the ±BUS voltages to 370±0.5V by using BUS regulation command.
(BUS voltage can be regulated about 0.5V every point by using BUS regulation command).
2. INV output voltage regulation: When the UPS runs in the Inverter mode, measure the output
voltage withthe multimeter, then regulate the output voltage to 230±0.5V by using output voltage
regulation command. (INV output voltage can be regulated about 0.8V every point by using output
voltage regulation command).
