Description; Features And Benefits; Over Temperature Foldback - Franklin Electric MonoDrive Connect N3R Manual Del Propietário

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SubDrive/MonoDrive Connect

Description

The Franklin Electric SubDrive/MonoDrive is a variable frequency controller that uses
advanced electronics to protect the motor and enhance the performance of standard
pumps used in residential and light commercial water system applications. When used
with Franklin Electric motors (see Table 2 on Page 16), the SubDrive/MonoDrive provides
constant "city-like" water pressure by eliminating the effects of pressure cycling associated
with conventional water well systems.

Features and Benefits

Constant Water Pressure
The Franklin Electric SubDrive/MonoDrive provides consistent pressure regulation using
advanced electronics to drive a standard motor and pump according to the pressure
demands indicated by a highly accurate, heavy-duty, long-life pressure sensor or analog
pressure transducer. By adjusting the motor/pump speed, the SubDrive/MonoDrive can
deliver constant pressure dependably, even as water demand changes. For example,
a small demand on the system, such as a bathroom faucet, results in the motor/pump
running at a relatively low speed. As greater demands are placed on the system, such
as opening additional faucets or using appliances, the speed increases accordingly to
maintain the desired system pressure. Using the provided analog pressure transducer,
system pressure can be set in the range of 5–95 psi (0.3–6.6 bar).
Reduced Tank Size
Conventional systems use larger tanks in order to store water, whereas SubDrive systems
utilize a smaller tank in order to maintain constant pressure. See Table 3 on page 17 for
pressure tank size requirements.
Reduced Pump Size
SubDrive/MonoDrive controllers fit the pump to the application by adjusting the
speed of the pump and motor. In SubDrive applications, a pump with a power rating
of half the motor's power rating can be used when properly sized. See pump sizing
information on page 18.

Over Temperature Foldback

SubDrive/MonoDrive controllers are designed for full power operation in ambient
temperatures up to 122 °F (50 °C) at nominal input voltage. In extreme thermal conditions,
the controller will reduce output power in an attempt to avoid shutdown and potential
damage while still trying to provide water. Full output power is restored when the internal
controller temperature cools to a safe level.
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