Chapter 4 Operator Control And Display Panel 43
NX UPS Single Module And Parallel System 250kVA ~ 800kVA User Manual
The functions of the menu keys F1 ~ F4 and HELP for the current screen are shown by self-explanatory icons in the
keypad window as appropriate. From any menu on the primary screen, pressing the F1 key returns to the OutPut
menu.
4.2.3 UPS Help Screen & Flow Chart
At the primary screen, press the HELP key, and the help screen appears, as shown in Figure 4-4.
This screen displays a simulated diagram of the UPS, including the power flow and the status of the isolators and
transfer switch of the UPS. It also displays the current meaning of the menu keys for the convenience of users’ menu
operation. Pressing the HELP key again will exit the help screen and return to the primary screen.
Liebert NX
2008 - 10 - 31
12 :30 :
150
kVA
-3 X 3
单机在线
正常
?
功率因数
0 . 99
0 . 99
0 . 99
主路空开闭合
01 - 12
主路逆变供电
01 - 22
单机在线
NXr
150 kVA
16: 21: 17
交流输出
F1
F2
F3
F4
HELP
#1
NX 0300 kVA
16:27:17
OutPut
Q3
SCR
FLOW
Figure 4-4 Help screen
4.2.4 Default Screen
During UPS operation, if there is no alarm within two minutes, the default screen will appear, as shown in Figure 4-5.
After a short delay, the LCD backlight will turn off. Pressing any menu keys (F1 ~ F4, HELP) restores the default
screen.
NX 300kVA
16:21:17
#1
F1
F2
F4
HELP
F3
Figure 4-5 Default screen