Xtreme Power Conversion Corporation
M90U-80 & 140 User’s Manual
Page 16
Uninterruptible Power Supply
2.8.2 LED Indicators
LED
Color
Status
Definition
LINE
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.
INV
BATTERY
Green
Red
On
Load on inverters.
Off
Inverters not operating.
On
Load on Battery.
FAULT/
ALARM
Red
Flashing
Low battery
Off
UPS is normal and battery is charging.
On
UPS fault.
2.8.3 Control Key
Turn on or turn off the UPS.
2.9 Introduction of Modules
The design of STS Module, Power Module and Battery Module make maintenance and replacement quick and easy.
The modular and hot-swappable design of the power and battery modules makes a highly cost-effective solution
to meet your power requirement. The number of power or battery modules installed in the UPS can be based on
the initial needs. Once the power or runtime requirement increases, you can easily install more power or battery
modules without interrupting the operation of the system.
Figure 2-17 Front View of Module
Battery Breaker
Maintenance Bypass