Xtreme Power Conversion Corporation
P91, TX91, TX91L, TXVR Service Manual
Page 25
Uninterruptible Power Supply
7.2.5 Regulation of the system
Parameter Setting Method:
1. Connect the RS232 port of the UPS to the RS232 port of the computer with RS232 cable.
Open Communication Test Tool software. You will see software interface as shown in Figure 7.2.
Figure 7.2 Communication Test Tool software interface
2. After completing the setting, you can type the command in the command area.
3. +BUS voltage regulation: Type “BUSP+/- XX” command (XX is two digits from 00 to 99). Then
press the “ENTER” key, and +BUS voltage will rise (drop) about X.XV.
4. -BUS voltage regulation: Type “BUSN+/- XX” command (XX is two digits from 00 to 99). Then
press the “ENTER” key, and -BUS voltage will rise (drop) about X.XV.
5. INV output voltage regulation: Type “V+/- XX” command (XX is two digits from 00 to 99) Then press
the “ENTER” key, and output voltage will rise (drop) about X.XV.
6. INV output voltage setting: Type “VXXX” command (XXX is 208/220/230/240). Then press the
“ENTER” key, and INV output voltage will be set to 208V/220V/230V/240V.
7. Output current regulation: Type “OC+/-XX” command (XX is two digits from 00 to 99). Then
press the “ENTER” key, and output current will rise (drop) about X.X A.
