Operator`s manual

4.3 Adjusting and Controlling the UPS
The Maintenance submenu (Figure 4.3.1) lets you control the UPS and change selected items
to meet your operational needs.
Procedure
At the main menu (Figure 4.2.1) type 3 and press ENTER.
Maintenance Submenu
30 Battery Test Options This starts the self test and sets for how long it will run. The default setting for the test
duration is 2 minutes, but this can be adjusted in 1 minute intervals with this submenu.
31 Inverter On/Off This switches the inverter on or off to allow you to prevent a deep damaging battery
discharge or to provide backup battery power to the load.
You can set a delay before the inverter is turned on to allow you time to thurn critical
loads off. The Set Inverter ON/OFF delay is only available when the UPS is in Battery or
Standby modes.
The delay can be adjusted in 1 second steps with a default of setting of 0 seconds to a
maximum of 600 seconds (5 minutes). The delay is only available in Standby or Battery
modes. Once the UPS returns to Line mode, the delay resets itself to 0 seconds.
32 Change Password This changes the UPS’s password. The factory set password is 1111. It can only be
changed when the when the UPS is in Line mode. The password must be only 4
numbers (no letters or spaces) long.
34 Line Qualify Time This lets you set the delay when the UPS goes from Battery mode to Line mode after
the line becomes requalied. The purpose of this delay is to make sure the line is stable
before the UPS switches back to it.
The default setting is 3 seconds, but you can set this to 3, 10, 20, 30, 40 or 50 seconds.
35 Low Battery Warning
Voltage
The lets you set the UPS’s low battery warning voltage, adjusting the setting to match the
batteries you are using and the actual operating conditions.
The default value is 40% (47 VDC) and can be adjusted in 1% (0.05 VDC) increments
between 45.0 (0 %) and 50.0 VDC (100%) by typing in the % battery voltage level where
you want the warning to be triggered at.
36 Load Shed Timer On/Off This lets you turn the timer contacts on or off.
Figure 4.3.1
Maintenance Submenu
Novus Micro Operator’s Manual
Doc# 017-221-B0 Rev 03 /07 38