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SubMonitor Motor Protection System
The SubMonitor Motor Protection System represents the ultimate in protection for the three phase
submersible motors used in the Giant Fountain. The submersible motor and the SubMonitor system
are both manufactured by Franklin Electric.
Digital electronics has made it possible to develop a unique programmed system capable of detecting
overloads, underloads, overvoltage, undervoltage, unbalanced currents, chattering contacts, and
phase reversal. Operates with the Subtrol-equipped submersible motor to provide motor overheat
protection. SubMonitor turns off the submersible motor when any of these faults occur and provides
a visual display of the fault condition and status which is recorded in the system’s history. When the
Giant Fountain is in operation the SubMonitor monitors and displays the three phase voltages, three
phase currents, and the pump status.
The SubMonitor Motor Protection System will come prewired and programmed in the Giant Foun-
tain Power Control Center from the factory. The programming can be verified by following the
“Quick Guide to Setup” section in the Franklin SubMonitor Installation & Operation Manual. See
Table 1 for the settings of each motor rating. All other programmable settings should remain at the
default settings.
Additional contents of the Franklin SubMonitor Installation & Operation Manual are as follows:
- Password Protection
- Event History
- Key Parameters in Event History
- Other Features
- Troubleshooting
WARNING: This equipment should be installed by a technically qualified electrician in compliance
with national and local electrical codes.
Before Installing the SubMonitor System
1. Read both manuals thoroughly.
2. Be sure the incoming power supply is turned off before working on motor or controls.
WARNING: SubMonitor is NOT compatible with phase converters, reduced voltage starters or
variable-speed inverter drives.
WARNING: The Warranty is VOID if the SubMonitor program settings are changed without first
consulting with Otterbine.
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