Fault tolerant analog outputs for turbo compressors
US8805593B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jun 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/14019
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control system for operating a device in a turbo machine system. The system includes a first programmable logic control device producing an analog output signal and a relay circuit electrically connected to the first programmable logic control device to receive the analog output signal. A field device is electrically connected to the relay circuit to receive the analog output signal to operate based on the analog output signal to provide a load. In addition, the relay circuit is electrically connected to a second programmable logic control device to communicate the analog output signal to the second programmable logic control device to monitor the analog output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.