203 Inside The Front Door - Unity I UT3K Manuel D'utilisation

Table 1 explains what the keys do when the UPS is in its normal display mode. When you are displaying parameters or
E
alarm and system logs, the keys have different functions; see Table 3 in Section 302 and Table 6 in Section 403.
N
Table 1: Front Panel Key Functions (When parameters and logs are NOT displayed)
G
Key(s) Result
L
Pressed
I
CANCEL Silences any alarm that is currently sounding. If the UPS detects a new alarm condition later, it will restart
S
the alarm beep. Silencing an alarm does not correct the condition that caused it (see Section 204).
H
Cancels a battery test if one is in progress.
Holding the key down for two seconds clears an alarm. The alarm will restart if the condition that caused
it still exists.
If the UPS has shut down because of an alarm condition, holding the key down for two seconds restarts the
UPS if the problem that caused the alarm has been solved and the unit is not in bypass mode.
VOUT Displays the UPS output voltage.
%LOAD Displays the percentage of the UPS' total power capacity that your equipment is using.
VLINE Displays the AC input line voltage that the UPS is presently receiving.
RUNTIME Displays the estimated runtime remaining (in minutes and seconds). Note: The runtime display is most
accurate when the UPS is running on battery power.
VBATT Displays the present battery voltage (nominal is 48 V).
TEMP Displays the internal ambient temperature of the UPS in degrees Celsius.
SCAN Starts the scan mode. In scan mode, the UPS scrolls through a display of VBATT, VOUT, TEMP, %LOAD,
VLINE and RUNTIME. Each value displays for two seconds, and the small green lights tell you which value
is currently displayed.
TEST Holding down this pair of keys for two seconds starts a test of the front panel lights (except BYPASS) and four-
digit display. Note: If Parameter 77 (Test on Demand) is enabled, the unit will also test the batteries. If para-
meter 77 is enabled and parameter 62 (Nominal Input Voltage) is set, the unit will also test the BYPASS light
by briefly switching to internal bypass mode. See Section 300.

203 Inside the Front Door

The UPS' front door is below the front panel keys (see Figure 1 in Section 100). To open the door, pull the top of the
door toward you. The keyswitch and Emergency Power Off (EPO) reset button are inside the front door. In addition,
the labels inside the door contain useful reference information. See Figure 9.
Figure 9
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