Chapter 4 Fault Diagnosis
4.1 Fault Codes Description and Countermeasure
Solartech PD series solar DC pumping controller has complete protection functions.
When system fault occurs, the controller will take protection countermeasures: The
general protection measure is stopping the driving signal output (jump stop)
immediately and not allowing the controller to restart in a while.
When fault or protection occurs, the controller operation panel will automatically
display the blinking fault code in the last 2 digit nixie tubes. If the first 1 digit nixie
tube displays “P”, it means the fault or protection requires the controller to reset to
restore normal operation. User can shut off the power supply and then power on the
controller until the internal power supply is off, or press the “RESET” key
combination to reset. If the fault still exists after resetting, please contact the
manufacturer to report the fault and get a solution.
When the fault or protection has been cleared after resetting, the controller will
automatically proceed with the restart countdown. During this time, the fault code
will appear in the first 2 nixie tubes, and the last 3 digit nixie tubes will display the
restart countdown time, when the countdown time arrives 0, fault code display will
disappear automatically and then the controller is in running data display status.
CODE Code Description Possible Cause Countermeasures
Over-voltage Too high input voltage Inspect solar array voltage
Under-voltage
Low input voltage
weak sunlight intensity
Inspect solar array voltage
Over-current
Too large pump load
Low solar array voltage
Motor stalling
Change to low-power pump load
Inspect solar array voltages
Inspect the pump
Overload Too large load Reduce the highest operation frequency
Over-current of the
internal module
Output short-circuit
or grounding
module damaged
Inspect the wiring
Ask manufacturer for help
To Next Page
Loading...
Need help?
General