Xtreme Power Conversion Corporation
M90U-80 & 140 User’s Manual
Page 40
Uninterruptible Power Supply
4. Control Panel and Display Description
4.1 Introduction
The control panel and display are located on the front door of the UPS. The LCD is on the front. The LED indicators,
the display description and the Power on/off button are on the back of the front door.
The control panel and display allows user control and monitoring of all measured parameters, UPS and battery
status and alarms. The control panel and display are divided into four functional areas: (1) LCD display, (2) LED
indications, (3) Control key, (4) Audio Alarm, as shown in Figure 4-1.
Figure 4-1 Control Panel
1. LCD display: Graphic display and all measured parameters.
2. LED indications. Refer to Table 4-1.
3. Control key. Refer to Table 4-2.
4. Audible Alarm. Refer to table 4-3.
Table 4.1:
LED indications
LED
Color
Status
Definition
INPUT
Green
On
Input source is normal.
Flashing
Input source is abnormal.
Off
No input source
BYPASS
Yellow
On
Load on Bypass.
Flashing
Input source is abnormal.
Off
Bypass not operating.
LOAD
Green
On
There is power output for the load.
Off
There is no power output for the load.
INVERTER
Green
On
Load on inverters.
Off
Inverters not operating.
BATTERY
Red
On
Load on Battery.
Flashing
Low battery
Off
Battery converter is normal and battery is charging.
FAULT/ ALARM
Red
On
UPS fault.
Flashing
UPS alarm.
Off
Normal.