Minuteman UPS Enterprise Plus Series - Manual (Page 7)

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English
The AC normal (green) LED illuminates in a steady state when the
UPS is on and operating in the AC normal mode. The AC normal
LED will extinguish when operating in the Battery mode.
The On-Battery (green) LED illuminates in a steady state when the
UPS is operating in the Battery mode. The On-Battery LED will
extinguish when operating in the AC normal, Boost and Buck modes.
The Boost (yellow) LED illuminates in a blinking state when the
UPS is operating in the Boost mode. The Boost LED will extinguish
when operating in the AC normal, Buck and Battery modes.
The Buck (yellow) LED illuminates in a blinking state when the UPS
is operating in the Buck mode. The Buck LED will extinguish when
operating in the AC normal, Boost and Battery modes.
The Fault (red) LED illuminates in a steady state when the UPS
detects an internal fault. The Fault LED is extinguished when the
UPS is operating properly.
The Weak/Bad Battery (red) LED illuminates in a steady state when
the UPS detects a weak battery, bad battery or if the battery is
disconnected. The Weak/Bad Battery LED is extinguished when
the battery's condition is good.
The Site Wiring Fault (red) LED (120V models) illuminates in a steady
state when the UPS detects a site wiring problem. The SWF LED is
extinguished when the UPS is connected to proper site wiring.
CONTROL PANEL