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User Manual 10H52258UM60 - Rev. 3 - 01/2019
Operation Control and Display
APM 400/600
Alarm
silencing
switch
SILENCE
ON/OFF
When an alarm is active, pressing this key silences the audible alarm.
Pressing this key again re-enables the buzzer
Note
Press and hold the preceding key for 2 to 3 seconds, after which it is possible to activate the function key.
5.5
LCD and Menu Keys
The Operation Control and Display panel consists of a LCD screen and 5 menu keys (all the function keys from F1
to HELP).
Table 5.5 illustrates the LCD and its respective menu keys:
Table 5.5
Key
F1
F2
F3
F4
Help
Function 1
Function 2
Thanks to its 320*240 dot matrix graphic display, the user-friendly, menu-driven LCD enables users to browse
through the UPS input, output, load, and battery parameters with ease, as well as accessing UPS status and alarm
information, as well as performing functional settings and control operations. The LCD can also store up to 2048
historical records, which can be retrieved for reference and diagnosis.
5.6
LCD Screen Type
This section examines the various screen types that are available on the APM UPS model.
•
Start Screen
•
Main Screen
•
Default screen
5.7
Start Screen
When the UPS is switched on it performs a self-test, following which the start screen is displayed. The start
screen will be visible for 25 seconds, as indicated in Figure 5-2.
Figure 5-2 Start Screen
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