Operation
ProStar MPPT Operator’s Manual
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4.0
Lighting Control Mode (DIP 1 ON)
A quick press of the push-button will conduct a ten minute
lighting test. A lighting test is used to verify correct wiring in
the load circuit and /or verify that the lighting components
are operational. The lighting test will override LVD for ten
minutes - the override duration is not programmable.
• Press and hold the push-button for five seconds to initiate
or stop an Equalization (EQ).
Reset PS-MPPT to Factory Settings
To restore factory settings: Disconnect PV; disconnect
battery power; press and hold down the push-button;
re-start the PS-MPPT by connecting the battery; keep the
push-button depressed for 3-5 secs, until the battery LEDs
start to cycle R-Y-G.
A Custom Edit Settings fault will occur. See Section 5 for
details. The unit will need to be re-powered to resume
normal operation.
4.6 Alarms
Solar Overload
No LED indication. The ProStar MPPT will limit battery
current to the 25 or 40 amp maximum rating. An over-sized
solar array will not operate at peak power. The solar array
should be less than the ProStar MPPT nominal max. input
power rating for optimal performance. See Section 7.0 -
Technical Specifications for more information.
High Temperature Current Limit
The ProStar 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 Appendix B de-rating
graphs indicate maximum ambient temperatures at which
the ProStar MPPT will operate with full-rated current; as
indicated in each graph, maximum ambient temperature
depends on array input voltage. Actual de-rating
temperatures lower than specified in the graphs indicate
insufficient airflow. Maximum charging current depends
on many factors, and good ventilation can greatly reduce
the amount of de-rating. If the controller frequently reports
this alarm condition, corrective action should be taken to
provide better air flow, or to move the controller to a cooler
location.
High Input Voltage Current Limit
The ProStar MPPT will limit the solar input current as the
solar array Voc approaches the maximum input voltge
rating. The array Voc should never exceed the 120 volt
maximum input voltage - see the array voltage de-rating
graph in Appendix.
Current Limit
The array power exceeds the rating of the controller. This
alarm indicates that the ProStar MPPT is limiting battery
current to the maximum current rating.
RTS Open
The Remote Temperature Sensor is not connected to the
controller. Use of the RTS is recommended for proper
battery charging.
Heatsink Temperature Sensor Open / Shorted
The heatsink temperature sensor is damaged. Return the
controller to an authorized Morningstar dealer for service.
Battery Sense Out of Range / Disconnected
(only alarm
with LED indications)
Error status LED: Flashing red. Battery status LEDs: R/Y
- G/Y sequencing. A battery sense wire is disconnected.
Inspect the battery sense connections. This alarm is set
when the voltage at the battery sense terminals differs
by more than five volts from the voltage at the battery
terminals.
Uncalibrated
The controller was not factory calibrated. Return the
controller to an authorized Morningstar dealer for service.