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2.4 Procedure for Switching the UPS ON from a Maintenance Power down
condition
This procedure will describe how to start the UPS and then how to
transfer the load from the maintenance bypass to the UPS Inverter.
1. Close the output power switch Q4 and the Bypass power switch
Q2.
The Module Mimic indicators (1) Bypass supply present and (3) Load
on Bypass will illuminate.
2. Close the Rectifier Input power switch Q1.
The rectifier will 'walk-in' and stabilize at float voltage. Check the
battery voltage on the measurement screen.
3. Wait for 20 seconds then close the battery circuit breaker. This is
located inside the battery cabinet (if used) or is otherwise located
adjacent to the battery racks.
The Module Mimic indicator (4) Battery unavailable should
extinguish. Several LED's on the Battery state of charge bargraph will
illuminate showing the battery state of charge
4. Open the Maintenance Bypass power switch Q3 and fit lock. The
Module Mimic indicator Load on Bypass (3) will flash amber. The
display window will show the present status of the UPS
5. From the above window press the ENTER key: The Main Menu
Window will display:
6. Select FUNCTION and press ENTER key:
Before being allowed into the FUNCTION windows you are requested
to enter a password. This Is achieved by pressing the UP arrow key
repeatedly until the first digit displays the character required, you then
press the DOWN arrow key once to move on to the second digit. This
action is repeated for all eight digits. When the PASSWORD has been
completed press the ENTER key.
CAUTION
This operation gives the operator access to modify UPS's
operating mode, it is advised that only trained qualified
personnel should attempt to do that.
7. You now have access to all function windows.
Press the DOWN arrow key until the cursors have selected NEXT
PAGE - press the ENTER key:
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