Operation
4.3Initial UPS Startup Procedure
1.Inspect all power connections to ensure they are correct and secure.
2.Open external circuit breakers/fused disconnects to the connected loads.
3.Close all upstream circuit breakers and fused disconnects.
4.Use a voltmeter to verify proper input voltage is present on the UPS and Bypass input terminals. See Table 9 for the range.
5.Close the input breakers on the rear panel of the UPS (UPS input and Bypass input).
6.Turn the Maintenance Bypass Breaker to the Bypass position (remove the cover plate if attached).
7.Use a voltmeter to verify that the proper output voltage is present on the UPS output terminals. See Table 9 for the range.
8.Turn the Maintenance Bypass Breaker to the Off position and reinstall the cover plate..
NOTE
The maintenance bypass breaker cover must be installed behind the captive screw and the screw must be tightened for the UPS to operate on inverter mode.
9.Use a voltmeter to verify the output voltage is NOT present on UPS output terminals.
10.Use the LCD display and control buttons to start the UPS, refer to 4.2.1 - Controls and Messages.
11.Use a voltmeter to verify proper output voltage is present on UPS output terminals. See Table 9 for range.
! CAUTION
Before reinstalling the hardwire terminal protective panel, follow the shutdown procedure in
4.4- UPS Shutdown Procedure
12.Open all upstream circuit breakers and fused disconnects.
13.Reinstall the hardwire terminal protective panel.
4.4UPS Shutdown Procedure
NOTE
Carrying out this procedure will interrupt the supply to the load.
1.Press the Menu button, select Control and press the Enter key 
.
2.Select Turn UPS On/Off and press the Enter key 
. The LCD displays Turn UPS to BYPASS.
3.Press the Enter key 
to switch off the inverter.
4.Open any external circuit breakers/fused disconnects connecting the load (if present).
5.Switch both Input circuit breakers to the Off position.
6.Ensure all circuit breakers/fused disconnects upstream of the UPS are open.
7.Ensure that all LEDs on the control panel are extinguished.
The UPS is now completely shut down.
4.5Maintenance Bypass Procedure
1.Press the Menu button, select Control and press the Enter key 
.
2.Select Turn UPS On/Off and press the Enter key 
.
The LCD displays Turn UPS to BYPASS. The UPS is now on Internal Bypass Mode.
3.Press the Enter key 
to switch off the inverter (see Figure 10).
4.Remove the safety cover from the Maintenance Bypass Breaker and turn UPS to BYPASS.
NOTE
At this point the load is no longer protected against interruptions and disturbances on the utility supply.
The UPS is now in Maintenance Bypass Mode. The Bypass LED on the front panel is illuminated (amber) and the load is supplied directly from the utility.
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