Apparatus and method for programming and reviewing a plurality of parameters of electrical switching device
US5699222A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Nov 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical switching device such as a motor starter includes separable contacts; a coil for operating the separable contacts; two light emitting diode indicators having a plurality of states; a pushbutton switch; and a control circuit responsive to the pushbutton switch employing a plurality of parameters for controlling operation of the coil and the indicators, with the control circuit having a setup mode and including a microcomputer for detecting actuation of the pushbutton switch to enter the setup mode, indicating a first one of the states on the indicators corresponding to a first one of the parameters, and detecting de-actuation of the pushbutton switch to indicate a value of the first parameter on the indicators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.