Setting The Functions - Liebert UPS System User Manual

Step 5 : After the UPS transfers from bypass to inverter, the bypass indicator turns
off, and the inverter and the load indicator turns on. The transfer may fail if the
phase rotation of bypass and inverter output are different.
During operation, if the AC power recovers after failure, the rectifier will restart
automatically after some time.
monitoring system will determine the quality of the generator supply. The time it
takes to determine this, ranges from 1 second to 255 seconds.
After startup, use the keypad to set the functions of the UPS.
Note
Power failure means the line to neutral voltage is lower than 120V or the Line to
Line voltage is lower than 208V over 10 msecs.

4.2 Setting the functions

The methods of setting the functions will be described in details in Chapter 5.
This chapter only introduces the setting that relates to commissioning.
The user enters the menu of "set functions" shown in the figure below.
Language selection : select "Chinese" or "English" as shown in Figure 4-3
Address setup : set the address of this UPS in the monitoring system as shown in
Figure 4-3.
Date and Time setup : format is "YYYY-MM-DD" and "HH:MM:SS" as shown in
Figure 4-3
Chapter 4 Commissioning of UPS
If the UPS transfer to generator power, the
UL33-0400L
2001-11-08
Inv. On Units 2/4
Language
Out
Chinese English
Local
System
Com. Adress Set
1
Battery
Records
Date & Time Set
2001£ - 1 1£ - 0 8
Settings
Input Breaker Closed 11£ - 0 8 12:09
11£ - 0 8 12:09
Byp. Breaker Closed
Mains Volt. Abnormal
11£ - 0 8 12:28
UPS in Battery Mode
11£ - 0 8 12:28
Battery low
11£ - 0 8 12:50
Fig. 4-1 Function Setup Menu
38
12:50:30
ID: 1
Chinese
1
12:50:30