Power-Up; Status Led; State-Of-Charge Leds; Alarms - Morningstar EcoBoost MPPT EB-MPPT-20 Manual De Instalación, Operación Y Mantenimiento

4.4.1. Power-up

Normal power-up: Status LED flashes G, then SOC LEDS
flash G - Y - R, then SOC LEDs indicate battery charge status
with a single battery status LED.
Failed bootload: Status LED flashes G, then SOC LEDS
flash G - Y and stop on solid Y.

4.4.2 Status LED

The Status LED indicates charging status and any exist-
ing solar input error conditions. The Status LED is on when
charging during the day and off at night. The Status LED will
flash red whenever an error condition(s) exists. Table 4.4 lists
the Status LED indications.
Color Indication
Off (with heart-
None
beat¹)
On Solid
Green ( with heart-
beat² )
Red Flashing
On Solid
Red ( with heart-
beat )
2
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 4.4. Status LED Definitions
NOTES:
1) R flashing is generally a user addressable fault / error
2) R charging status LED ON with heartbeat blink OFF
every 5 secs is a critical fault that generally requires service.
See, "Solid Charging Status LED with Self-test (R-Y-G) SOC
Faults", in Section 5.1.
28
Operation
Operating
State
Night
Charging
Error
Critical Error

4.4.3 State-of-Charge LEDs

Battery SOC LED Indications are shown in Table 4-5 below:
Condition
Absorption
Float
Equalize
SOC > 13.5V
13.5V > SOC > 13.0V
13.0V > SOC > 12.5V
SOC < 12.5V
Low voltage disconnect warning
Low voltage disconnect
Table 4.5. Battery SOC LED Indications

4.5 Alarms

Solar Overload
No LED indication. The EcoBoost MPPT will limit battery
current to the 20, 30 or 40 amp maximum rating. An over-
sized solar array will not operate at peak power. The solar
array should be less than the EcoBoost MPPT nominal max.
input power rating for optimal performance. See Section
7.0 - Technical Specifications for more information.
High Temperature Current Limit
The EcoBoost MPPT will limit the solar input current if the
heatsink temperature exceeds safe limits. Solar charge
current will be tapered back (to 0 amps if needed) to reduce
the heatsink temperature. The EcoBoost MPPT is designed
to operate at full rated current at the maximum ambient
temperature. This alarm indicates that there is insufficient
airflow and that the heatsink temperature is approaching
unsafe limits. If the controller frequently reports this alarm
condition, corrective action must be taken to provide better
air flow or to re-locate the controller to a cooler spot.
EcoBoost MPPT Operator's Manual
Indication
G flash - every sec
G flash - every 2 secs
G flash - 2 / sec
G solid
G / Y solid
Y solid
Y / R solid
R flash - every sec
R solid
29