Franklin 5870206300 Manual Do Utilizador

Página de 28
7
Motor Soft Start
Normally, when there is a demand for water, the SubDrive300 will 
be operating to accurately maintain system pressure. Whenever the 
SubDrive300 detects that water is being used, the controller always “ramps 
up” the motor speed while gradually increasing voltage, resulting in a cooler 
motor and lower start-up current compared to conventional water systems.
In those cases where the demand for water is small, the system may cycle 
on and off at low speed. Due to the controller’s soft-start feature and 
sensor’s robust design, this will not harm the motor or the pressure sensor.
System Diagnostics
In addition to regulating pump pressure and accurately controlling motor
operation, the SubDrive300 continuously monitors system performance and 
can detect a variety of abnormal conditions. In many cases, the controller 
will compensate as needed to maintain continuous system operation. But 
if there is high risk of equipment damage, the controller will protect the 
system and display the fault condition. If possible, the controller will try to 
restart itself when the fault condition subsides.
Unique Features
SubDrive controllers provide the ultimate in system performance, utilizing 
Franklin Electric’s three-phase motor series for maximum starting torque, 
high effi ciency and smooth operation. SubDrives convert residential single-
phase 60Hz power into the variable-frequency three-phase needed by the 
motor. In addition, SubDrives can spin a smaller pump slightly faster to 
boost output to roughly double its 60Hz horsepower rating. This allows use 
of smaller pumps for less system cost. If a smaller pump of the desired fl ow 
rating is not available, the controller can be confi gured to use larger pumps 
up to the horsepower rating of the motor.