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Operation 95
Figure 60 Module Start-Up Procedures Screen
Select the Walk-In screen on the LCD display.
Step 3. To energize the UPS module, manually close the input circuit breaker (CB1, Figure 8). This will provide
power to the rectifier. Use the Walk-In screen to monitor the Module DC Bus voltage.
The Input Amps bars should settle at about 10% after the momentary inrush current has subsided.
Verify that the DC Voltage bar begins to gradually move to the right.
Verify that the Output Voltage bar moves to the right after the DC Voltage bar has reached the 90% level. Both
bars should settle near the 100% line.
Select the Monitor/Mimic display from the Master Menu and confirm that the module DC bus and AC output
are at their proper operating voltages.
Step 4. When the Module DC Bus voltage is at 100%, you can manually close the module battery disconnect
(MBD) circuit breaker (external to the UPS).
WARNING
IF ANY ABNORMAL SITUATION OCCURS DURING THIS WALK-IN
PROCEDURE, OPEN THE INPUT CIRCUIT BREAKER AND
INVESTIGATE THE PROBLEM. EACH INPUT AMPS BAR SHOULD BE
WITHIN 10% OF THE AVERAGE BAR LENGTH. CALL LIEBERT
GLOBAL SERVICES IF YOU NEED HELP.
START-UP PROCEDURES
1. Verify that the control power is applied to the system control cabinet (check the display
on the system control cabinet).
2. Wait approximately two (2) minutes before attempting any other action .
3. Select "SYSTEM CONFIGURATION" screen to verify that the correct model is
displayed.
4. Select "WALK-IN" screen and do the following:
a) Close module input circuit breaker. Verifythat the DC voltage bar on
the display begins to gradually move to the right and the AC input
current bars do not move to the right more than 10% (40%for modules
with input filters) afterthe transformer inrush has subsided.
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START-UP PROCEDURES (Cont'd)
b) Verify that the output voltage bar moves to the right after the DC
bus bar has reached the 90% point. Both bars should settle near
their respective 100% levels.
c) If anything happens on the display not mentioned in (a) or (b),
immediately open the module input circuit breaker and investigate.
5. If step 4 is successful, select "MONITOR/MIMIC" screen and verify module
DC bus and output voltages are at proper nominal level. If so, close
module battery circuit breaker.
6. If no alarms are present on the "MONITOR/MIMIC" screen, the module may be
placed online by closing the module output breaker.
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