SunSaver Operator’s Manual

MORNINGSTAR CORPORATION
4.0 OPERATION
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will depend on many factors including:
• rate of discharge (amount of load draw)
• capacity of the battery
• health of the battery
• LVD set-point
If the battery discharges to the LVD set-point the load will
disconnect and a solid red Battery Status LED indication will
be displayed.
General Load Control Notes
• Only SS-6L/10L/20L models provide load control.
• Regulated voltage due to temperature compensation
is limited to a maximum of 15V (30V @ 24V nominal).
This protects certain DC loads that may be damaged
by high regulated input voltage.
• The load connection is NOT a regulated voltage
output. The load terminal voltage is approximately the
same as battery voltage unless the controller is in LVD
condition (load turned off).
• Do not wire multiple SunSaver load outputs together in
parallel to power DC loads with a current draw greater
than the lowest rated controller’s maximum load rating.
Equal current sharing cannot be guaranteed and an
over-load condition will likely occur on one or more
controllers.
• Exercise caution when connecting loads with specic
polarity to a live load circuit. A reverse polarity con
-
nection may damage the load. Always re-check load
connections before applying power.
• The SunSaver will go straight to LVD on start-up if the
battery voltage is at or below 11.7V / 23.4V.
4.0
4.4 Protections
Solar Overload
(Charging Status LED: Red ashing) If the solar current
exceeds the maximum solar rating, the SunSaver will
stop charging until the solar current returns to within its
operational rating. See Section 7.0 Technical Specications
for more information.
Load Overload
(Battery Status LEDs: G&R - Y sequencing) If the load
current exceeds the maximum load current rating, the
SunSaver will disconnect the load.
The SunSaver will attempt to reconnect the load two
(2) times approximately 10 seconds apart. If the overload
remains after the rst two (2) attempts, the fault must be
cleared by removing and reapplying power.
Solar Short Circuit
(Charging Status LED: off) Solar input power wires are
short-circuited. Charging automatically resumes when the
short is cleared.
Load Short Circuit
(Battery Status LEDs: G&R - Y sequencing) Fully
protected against load wiring short-circuits. After two (2)
automatic load reconnect attempts (10 seconds apart), the
fault must be cleared by removing and reapplying power.
PV Reverse Polarity
(Charge Status LED: off) Fully protected against reverse
solar connection. No damage to the controller will result.
Correct the mistake to resume normal operation.