4.0 OPERATION
MORNINGSTAR CORPORATION
21
4.0
4.0 Operation
4.1 LED Indications
STATUS LED
The Status LED indicates charging status and any
existing solar input error conditions. The Status LED is on
when charging during the day and off at night. The Status
LED will
ash red whenever an error condition(s) exists.
Table 2 lists the Status LED indications.
Color
Indication
Operating
State
None
Off (with heartbeat¹)
Night
Green
On Solid
( with heartbeat² )
Charging
Red
Flashing
Error
Red
On Solid
( with heartbeat
2
)
Critical Error
¹ heartbeat indication flickers the Status LED on briefly every 5 seconds
² heartbeat indication flickers the Status LED off briefly every 5 seconds
Table 2. Status LED de
fi
nitions
For more information on Status LED errors, see
Section
5.1 Error Indications
.
BATTERY SOC LEDS
Three (3) battery “state of charge” LEDs indicate the
level of charge on the battery. The SOC indication is based
on battery voltage setpoints alone, which only provides an
approximation of the actual state of charge of the battery.
Table 3 lists the SOC LED indications.
SOC LED
Indication
Battery Status
Load Status
Green
Fast Flashing
(2 Flash / sec)
Equalize Charge
Load On
Green
Med. Flashing
(1 Flash / sec)
Absorption Charge
Load On
Green
Slow Flashing
(1 Flash / 2 sec)
Float Charge
Load On
Green
On solid
Nearly Full
Load On
Yellow
On solid
Half Full
Load On
Red
Flashing
(1 Flash / sec)
Battery Low
LVD Warning
(Load On)
Red
On solid
Battery Empty
LVD
(Load Off)
Table 3. Battery SOC LED de
fi
nitions
!
CAUTION: An error condition exists if multiple Battery
SOC LEDs are
fl
ashing. See Section 5.1 Error Indications
for more information.
