Minuteman UPS MBK-E SERIES - Manual (Page 6)

5
On-Line On-Battery Boost
English
On-Line/On-Battery/Boost LED
Overload LED
Weak/Bad Battery LED
On/Off/Test Button
Fault LED
Press and release the ON/OFF/Test Button after 1 beep to turn the
UPS ON or OFF (see section 4).
The On-Line/On-Battery and Boost (green) LED illuminates in a steady state
when the UPS is on and supplying AC power to the load. The LED blinks and
the audible alarm sounds, when supplying battery power to the load. The LED
blinks and no audible alarm when the UPS is in the boost mode.
The Fault (red) LED illuminates when the UPS has detected an
internal fault. (see section 5)
The Overload (yellow) LED illuminates when the loads connected to
the UPS exceeds the UPS power rating. (see section 5)
The Weak/Bad Battery (red) LED illuminates when the UPS has
detected that the batteries are Weak/Bad. Battery replacement might
be required. (see section 5)