Installation Guide

MORNINGSTAR CORPORATION
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3.0 INSTALLATION
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nitions
For more information on Status LED errors, see Section
5.1 - Error Indications.
Step 5: Conrm Wiring
Double-check the wiring in steps 1 through 4. Conrm
correct polarity at each connection. Verify that all seven (7)
SS-MPPT power terminals are tightened.
Figure 7. System Wiring Review
+
-
2
1
3
Step 6: Install Fuses
Install a properly sized DC-rated fuse in each fuse holder
in the following order:
1. Load circuit
2. Battery circuit
Step 7: Conrm Power-up
The SS-MPPT should begin the power-up LED sequence
when battery power is applied. Observe that the Battery
Status LEDs blink in sequence one time.
If the SS- MPPT does not power up or a ashing LED
error sequence exists, refer to Section 6.0 - Troubleshooting.
4.0