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3. If the green V and I LED’s flash at the same time, it means that your
system is in its protection (brake) mode. To evaluate the problem,
further press the SET button, and the LED display will show a set code
PR1~PR7. Refer to the description listed above to know what each
code stands for.
System protection:
Your MPPT charge controller, equipped with sensors
inside the unit, comes with four main protection functions.
Self-protection:
The MPPT charge controller has a temperature sensor. The
temperature of the internal circuitry is moderated by an internal fan that is
activated at 45°C (110°F). When the temperature exceeds 65°C (150°F), the
MPPT will apply both the fan and braking system to prevent damage.
Protection for Battery:
The MPPT charge controller can sense the voltage of
the battery and the current output/input to the battery. If the parameter of
voltage and current is wrong, then the braking system will be turned on.
Protection for Wind Turbine:
The MPPT charge controller can sense the
rotation speed of the wind turbine. If the rotation speed is over the setting
value in the program, the braking system will be turned on. The latest
version of the MPPT charger controller has also equipped the phase detector
technology. If the AC output warefrom generator is incorrect, that means the
generator may be damaged. At that moment, the MPPT will apply the braking
system and the LED lamp to warn users.
Protection for No Battery Connection:
When the MPPT charge controller
shuts down due to the abnormal battery and improper connection; it will
cause free-spin issues. At 150 RPM and above, the MPPT charge controller
should apply the braking system automatically and the power from the
wind turbine should be cut off at once. The wind turbine will turn on and
brake repeatedly. Under safety conditions, please check the battery wire and
function as soon as possible.