5.0
Troubleshooting
ProStar MPPT Operator’s Manual
63
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A metered model, an RM-1 meter, or MSView PC software,
can be used to determine if the RTS is working properly.
Solar-Battery High Voltage Disconnect (HVD)
Error status LED: Flashing red. Battery status LEDs: R-G
sequencing. This fault is set when battery voltage is above
normal operating limits. The controller will disconnect the
solar input and set a Solar High Voltage Disconnect fault.
This fault is commonly caused by other charging sources in
the system, charging the battery above the ProStar MPPT
regulation voltage. Recovery occurs at HVD re-connect
threshold, and the fault will clear automatically.
Load High Voltage disconnect (HVD) -
disabled by default
Error status LED: None. Battery status LEDs: R-G
sequencing. This fault is set when battery voltage is above
normal operating limits. The controller will disconnect
the load output and set a Load High Voltage Disconnect
fault. This fault is designed to protect sensitive loads
from excessive voltage. Recovery occurs at HVD re-
connect threshold, if programmed, and the fault will clear
automatically.
High Heatsink Temperature
Error status LED: Flashing red. Battery status LEDs: R-Y
sequencing. The heatsink temperature has exceeded safe
limits and the load is disconnected. The load will automati-
cally reconnect when the heatsink cools to a safe
temperature.
Battery Over-current
Error status LED: Flashing red. Battery status LEDs:
R/Y-G sequencing. While rare, if battery current exceeds
approximately 130% of the controller’s output current
rating, this fault can occur. The fault is generally related
to fast, large battery voltage transients (connecting a very
heavy or capacitive load like an inverter) that are faster
than the controller can regulate, and it shuts off to protect
the circuitry. The controller will automatically re-start in 10
seconds.
Settings (DIP) Switch Changed
Error status LED: Flashing red. Battery status LEDs:
R-Y-G sequencing.
If a settings switch is changed while
there is power to the controller, the LEDs will begin
sequencing and the solar input will disconnect. The
controller must be re-started to clear the fault and begin
operation with the new settings.
Custom Settings Edit
Error status LED: Flashing red. Battery status LEDs: R-Y-G
sequencing.
A value has been modified in custom settings
memory. The controller will stop charging and indicate a
fault condition. After all settings have been modified, the
controller must be reset by removing and then restoring
power to the controller. The new programmed settings will
be used after the power reset.
Firmware Update Failure
The firmware update was not successfully programmed. The
controller will not indicate the full power-up LED sequence
of G-Y-R when power to the controller is reset. Instead, the
controller will display green, and then stop on yellow. The
yellow LED will continue to be lit and the controller will not
complete start up or begin charging.
Re-try the firmware update. The firmware must be
successfully loaded before the controller will start up.