iCON iSOLAR 4” PDP Instruction Manual
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SECTION FOUR – Troubleshooting
8a. Trouble shooting - Overview
Isolate all electrical sources before commencing any installation, servicing,
or repair on any component in the installation.
The
iSOLAR
PDP4 motor has internal capacitors that MUST be allowed to
discharge before handling. Allow 2 minutes for stored energy to dissipate
before handling the pump/motor.
The V3 Controller is used to switch AC and DC power supplies and can
automatically start a connected generator or switch between DC (Solar) or
AC (Generator / Mains) power sources at ANY time.
Ensure all energy sources and generator starting circuit is properly locked-
out before working on the system.
For the end-user, their expectation of how the pump should operate is often based
on conventional electric pumping systems.
In normal operation the iSOLAR M220HR motor is an ever-changing device as it constantly
adjusts itself to optimise the available power to maximise water delivery.
Every application is different, every power combination has an effect and environmental
conditions change how the pump operates. On sunny windy days with clouds blowing by
the pump operation can be positively erratic.
It may be that the ‘strange behaviour’ observed is simply the pump optimising the
available energy.
The best indication that there is a problem is if the water delivered per day is
dramatically less than normal.
Take the time to read the following information to gain an all-important understanding of
how the pump and controller are intended to operate.
Motor Internal electronics
The electronics inside the motor monitor current, rpm and electrical load. They adjust the
motor
according to the input power available
.
If there is insufficient power for the motor to reach its target speed range (0 – 3600 rpm)
then the motor will shut down and begin its start-up cycle again.
Just because ‘the sun is shining’ does not automatically guarantee there is sufficient solar
energy for the pump to run, particularly early or late in the day.
If for example, the day is overcast, the pump may struggle to reach its optimum operating
range. The motor may have sufficient voltage but the overall wattage is too low to run the
motor at the necessary head so the motor will shut down and restart until the power is
stable. The same behaviour occurs if there is excessive start-up torque.
