Alpha Technologies
67
4
Communication
4.8.2 Parameter Descriptions
Figure 4.8.2
Parameter Descriptions and Values
4.8
Input Voltage Parameters (Continued)
123% V
in
107% V
in
100% V
in
96% V
in
94% V
in
88% V
in
85% V
in
121% V
in
106% V
in
40 High Lmt
Decreasing this level makes the UPS more sensitive to
an overvoltage condition by lowering the overvoltage
detection level.
NOTE:
The High Hyst (42) should be adjusted by the
same % of rated line input voltage
42 High Hyst
Increasing this level raises the voltage level where the
UPS resumes Line mode after a overvoltage has been
corrected.
46 Buck High
Increasing this level raises the voltage level where the
UPS goes to Buck mode
47 Buck Low
Decreasing this level lowers the voltage level where
the UPS goes to Line mode.
44 Boost High
Increasing this level raises the return voltage level from
Boost mode to Line mode.
45 Boost Low
Increasing this level raises the voltage level where the
UPS goes to Boost mode.
43 Low Hyst
Decreasing this level lowers the voltage level where the
XTi resumes Line mode after a low line condition has
been corrected.
41 Low Lmt
Increasing this level makes the UPS more sensitive to
a low line disturbance (brownout) by raising the
brownout detection level.
NOTE:
The Low Hyst (43) should be adjusted by the
same % of rated line input voltage.
Factory Set
Parameters
Battery Mode
Battery Mode
Boost to Battery
Battery to Boost
Line to Boost
Boost to Line
Line to Buck
Buck to Line
Nominal
Battery to Buck
Buck to Battery
