Liebert UPS System - Manual (Page 69)

Chapter 5 Operation of Display Panel
63
Move the cursor to the corresponding bit to modify the number and confirm, then
the 0755 8787001 can be set, fill in the “*” character in other blank bits, as shown in
Fig.5-39. Pressing F1(ESC) to exit the setup of the fault call-back number 1. Other
fault call-back numbers will be set in the same way. At the moment, all the 12
setting items are finished.
2001-11-08 UL33-0400L 12:50:30
Inv. On Units 2/4 ID: 1
Input Breaker Closed 11£ -08 12:09
UPS in Battery Mode
Battery low
11£ -08 12:09
11£ -08 12:28
11£ -08 12:28
11£ -08 12:50
Records
Out
System
Local
Settings
Byp. Breaker Closed
Mains Volt. Abnormal
Battery
ok
К Ц ¶ ¯µ з³ Ш Ч Ф ¼ м
Phone Call No. 2
Phone Call No. 3
*******************
Phone Call No. 1
*******************
07558787001****** C
Figure 5-39 Call-back number setup
5.4 Prompt window
The prompt window will be displayed during the operation of the system when the
system needs the user to confirm or to conduct some operations. This system has
about 5 “prompt windows” that will be introduced below.
From bypass to inverter mode with interruption:
If the bypass voltage or frequency exceeds the synchronized range and utility
voltage or frequency is normal, the inverter can’t be in synchronize with the bypass,
and the output can only transfer to bypass after an interruption of about 15ms when
the user press the “Start” key of inverter. Before transferring, the system should let
the user to confirm whether the interruption can be accepted, as shown in Fig.5-40.
Other operations can only be done after confirmation. If the bypass voltage restores
to normal before the user makes confirmation, the UPS will transfer to inverter
mode automatically. At the same time, the prompt window will disappear
automatically.