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Table 1: Low-Voltage Units
Example:
If you are changing the voltage to 115 volts, your new Voltage Setpoint setting should be
“2”; the recommended Low Voltage setting would be “101,” and the recommended High
Voltage setting would be “130.”
* Do not use 100-volt settings unless the UPS is specially designed for this voltage.
Table 2: High-Voltage Units
Example:
If you are changing the voltage to 240 volts, your new Voltage Setpoint setting should be
“3”; the recommended Low Voltage setting would be “204,” and the recommended High
Voltage setting would be “260.”
* Do not use 200 or 208-volt settings unless the UPS is specially designed for these voltages.
3.
Write the settings you found in step 2 in the blanks below.
Setpoint
Setting
Voltage Setpoint
__________
Low Voltage Setpoint
__________
High Voltage Setpoint
__________
4.
Now, press the CANCEL and TEST keys at the same time for a few seconds. When you first press the keys,
the UPS will beep. After a few seconds, the Fortress will click, and the display will show “1 0”; this is the
first level of setpoints. (Your Fortress Guide describes the setpoints in this level.)
The display shows
“1 0”
Settings
New Voltage
Voltage Setpoint
Low Voltage Setpoint High Voltage Setpoint
100 volts*
0
90
112
110 volts
1
96
125
115 volts
2
101
130
120 volts
3
105
136
260
253
204
196
3
2
240 volts
230 volts
242
187
1
220 volts
236
182
0
208 volts*
220
170
0
200 volts*
High Voltage Setpoint
Low Voltage Setpoint
Voltage Setpoint
New Voltage
Settings
Press both keys to
display setpoints.
