installation guide

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 fl 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. St a tus LED defi nit ions
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. Bat te r y SOC LED de fi nit ions
!
CAUTION: An error condition exists if multiple Battery
SOC LEDs are fl ashing. See Section 5.1 Error Indications
for more information.