Table of Contents
Advertisement
TOSHIBA
5.0
Operating the UPS
5.6
Battery Low Voltage Tolerances
Excessive discharge will cause the UPS unit's battery voltage to drop. The chart shown
below lists the voltage level at which each UPS unit's low-voltage alarm will sound and
also at what level the low-voltage condition will cause the unit to automatically shut down.
UPS Capacity
in VA
Nominal voltage
in Vdc
Alarm voltage
31.7
in Vdc
Shutdown voltage
29.7
in Vdc
5.7
Audible Alarm Functions
Audible alarms will sound when the UPS unit is in the battery backup mode, has
low battery voltage, or is in an overload condition. The chart shown below depicts
the audible alarm pattern for each condition. Time units are shown in seconds.
Condition
UPS in battery
backup mode
(battery voltage:
100% - 88%)
UPS low battery
voltage (voltage
less than 88%)
Overload
600
800
1000
1200
36
48
60
42.3
52.8
63.4
38.9
48.6
58.3
1500
2000
500+
72
72
96
36
63.4
84.5
31.7
58.3
77.8
29.2
Audible Pattern
70 S
5 S
1 S
1 S
0.3 S 0.3 S
5 - 7
750+
1000+
1500+
48
60
72
42.3
52.8
63.4
38.9
48.6
58.3
Hide quick links:
Advertisement
Table of Contents
