Chapter 5 Operator Control And Display Panel 33
NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual
Indicator State
Description
Battery indicator
Solid green
Load on battery
Flashing green
Battery EOD pre-warning
Solid red
Battery abnormal (failed, absent or polarity reversed) or battery converter abnormal
(failed, overcurrent or overtemperature)
Off
Battery and battery converter normal, battery charging
Bypass indicator
Solid green
Load on bypass
Solid red
Bypass power abnormal or outside specifications, or static bypass switch fault
Off Bypass
normal
Inverter indicator
Solid green
Load on inverter
Flashing green
Inverter turning on, starting up, synchronizing
Solid red
Inverter fault
Off Inverter
not
operating
Output indicator
Solid green
UPS output on and normal
Solid red
UPS output on and overloaded
Off
UP output off
Status indicator
Solid green
Normal operation
Solid yellow
Alarm (for example, AC input failure)
Solid red
Fault (for example, fuse or hardware fault)
5.1.2 Audible Alarm (Buzzer)
UPS activity is accompanied by the three kinds of sound listed in Table 5-3.
Table 5-3 Audible alarm description
Alarm sound
Meaning
A short beep
Any key on the operator control and display panel is pressed
Beep every other second
The UPS has a general alarm, for example, AC input failure
Continuous beep
The UPS has a serious fault, for example, fuse or hardware fault
5.1.3 Control Keys
The operator control and display panel provides five control keys, as described in Table 5-4.
Table 5-4 Description of control keys
Control key
Silkscreen
Description
EPO switch
EPO
Emergency Power Off: Cuts off the load power, shuts down the rectifier,
inverter, static bypass
Inverter start switch
INVERTER ON
Starts the inverter
Inverter shutdown
switch
INVERTER OFF
Shuts down the inverter
Fault reset switch
FAULT CLEAR
Restarts the UPS (subject to any fault being cleared)
Audible alarm silencing
switch
SILENCE ON/OFF
When an alarm is active, pressing this button silences the audible alarm.
Pressing this button again enables the buzzer again
5.1.4 LCD And Menu Keys
The operator control and display panel provides an LCD and five menu keys (F1 ~ F5). The menu keys are described
in Table 5-5.
Table 5-5 Menu key description
Function 1
Function 2
F1
F2
F3
F4
ESC
Escape
Left
Up
Right
Down
Enter
Key
F5
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