page 44 / 84 0MLMHTM30RUENUA
EPO
= Emergency Power Off button.
Led status indicators
Indicat
or
Symb
ol
Color
Function
State
Meaning
Green
Bypass
line
indicator
On
Input Bypass line is present and correct
Flashin
g
Input Bypass line is present but not correct
Off
Input Bypass line is not present
Green
Mains
line
indicator
On
Mains is present and correct
Flashin
g
Mains is present but not correct
Off
Mains is not present
Yello
w
Battery
powerin
g the
load
On
When the battery is supplying the load
Flashin
g
The "LOW VOLTAGE ON BATTERY PRE-ALARM" is
active, or the BATTERY DISCHARGE OR SWB OPEN
alarm is active
Off
When the battery is not supplying the load
Yello
w
Load
on
bypass
On
The system output is switched onto the automatic bypass
line
Flashin
g
The system output is switched onto the automatic bypass
line with the output power greater than 100%VA, or the
manual bypass switch SWMB is closed (optional)
Off
When the system output is switched onto inverter or the
output is switched onto the bypass line and both switches
SWOUT and SWMB are open, or when the TOTAL
BLOCK command is active
Green
Normal
output
On
The system output is fed from inverter on normal or stand-
by operation, the output power is correct since it is less
than 100%VA and the output switch SWOUT is closed
Flashin
g
The system output is switched onto inverter, the output
power is greater than 100%VA, or switch SWMB is closed
(if present)
Off
The system output is switched onto automatic bypass, or
switch SWOUT is open.
Red
Alarm
for
internal
fault
On
An internal fault is present
Flashin
g
-
Off
There are no internal faults.