Miniaturized motor overload protector
First Claim
1. A miniaturized programmable motor overload protector comprising, in combination:
- means for sensing electrical power applied to a motor;
means for filtering noise from inputted signals;
signal processing means;
programming means for inputting, monitoring, diagnosing, and recording operating information;
memory means for storing information;
display means;
means for interrupting said electrical power applied to a motor;
power supply means for providing regulated output voltages;
reset actuator means for resetting the miniaturized programmable motor overload protector after a trip has occurred; and
means for maintaining operation during electrical power disruptions.
3 Assignments
0 Petitions
Accused Products
Abstract
A Digital Programmable Motor Overload Protector includes a base module and a detachable, removable user interface module interfaced through a serial communications link. The base module provides motor overload analysis through a programmable Digital Signal Processor (DSP) which digitizes real time motor operating conditions, comparing stored user trip and alarm levels against these conditions, communicating the results to the detachable user interface and a multi-drop communications link using the industry standard MODBUS RTU protocol to a facility'"'"'s automation system. Motor operating conditions, user settings, override conditions, pass events, and resettable parameters are available through the password protected removable user interface module or the multi-drop communications interface.
41 Citations
42 Claims
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1. A miniaturized programmable motor overload protector comprising, in combination:
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means for sensing electrical power applied to a motor;
means for filtering noise from inputted signals;
signal processing means;
programming means for inputting, monitoring, diagnosing, and recording operating information;
memory means for storing information;
display means;
means for interrupting said electrical power applied to a motor;
power supply means for providing regulated output voltages;
reset actuator means for resetting the miniaturized programmable motor overload protector after a trip has occurred; and
means for maintaining operation during electrical power disruptions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A miniaturized modular programmable motor overload protector for low voltage and three phase AC induction motors comprising:
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a combination of coupled modular components including;
a base housing portion having means for modularly coupling and mounting said base housing portion to a supporting substate;
a Switch Mode Power Supply (SMPS) circuit portion integrated in the base portion housing;
a Control Power (CP) input terminal portion integrated with the SMPS circuit portion;
a Current Transformer (CT) circuit portion integrated in a CT housing portion in electrical interface with the SMPS circuit portion and the CT housing portion being modularly coupled with base housing portion;
a phase current feed input terminal portion integrated with the CT circuit portion;
a Signal Processor (SP) portion integrated in a SP housing portion, which is modularly coupled with the CT housing portion; and
a removable user interface circuit assembly including a cover and base to house the user interface circuit assembly, the cover and base being modularly coupled to form the housing, and the base being modularly coupled with the SP housing, wherein a footprint of the combination of coupled modular components comprising said miniaturized programmable motor overload protector has mechanical dimensions of no greater than about 2.2 inches by 5.2 inches and wherein a total height of said miniaturized programmable motor overload protector is no greater than about 4.8 inches. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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Specification