VariMax: ORIENTATION REQUIREMENTS Pump Orientation Image Pump Orientation Run Condition OK Pump runs normally in these positions NOT GOOD Pump DOES NOT run normally in these positions Note: Attachment hoses should be fixed so as to not create an axial push/pull load on the pump.
VariMax: ELECTRICAL CONNECTION PIN ASSIGNMENTS: PIN#3:PWM INPUT PIN#2:GND PIN#4:PWM OUTPUT PIN#1:V_BAT MATES WITH: SUMITOMO SYSTEMS 91 SEALED SERIES STANDARD CONNECTOR F.
VariMax: PWM WAVE FREQUENCY (REFERENCE):
VariMax: Simplifed Operation Diagram
VariMax: PWM 'in' diagram
VariMax: PWM 'out' diagram Pump Warning 4 - 6% A) Low Back EMF (possible impeller blockage) – Stops forward rotation, reverses the motor for 2.5s to clear potential impeller blockage, and then restarts. B) High temperature warning (Temperature is close to operational thermal limit) Motor slows to 2500RPM, in an attempt to cool. The lower RPM lowers the current which in turn, lowers the pump self heating characteristic.