Electricity: motive power systems – Positional servo systems – With compensating features
Patent
1990-05-23
1991-08-27
Ip, Paul
Electricity: motive power systems
Positional servo systems
With compensating features
318563, 318564, 36442605, G06F 1100, G05B 1902, B60L 1500
Patent
active
050436481
ABSTRACT:
A nominal value is supplied both to a control in a first channel and to a regulator in a second channel parallel to the first channel. The control signal and the regulation signal are transmitted to an apparatus to be regulated. The regulation signal is monitored by a regulator monitoring unit, which generates a shutdown signal when a certain regulation signal level is exceeded and thereby controls or regulates the apparatus into a safe state of operation. In order to effect the regulation, an apparatus output quality is detected by a sensor and the output signal from the sensor is substracted from the nominal value at the input of the second channel. Due to the installation of a control in the first channel, only a single sensor is required for secure two-channel regulation.
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H. Holscher and J. Rader, "Mikrocomputer in der Sicherheitstechnik" (Microcomputers in Safety Technology), Verlag TUV-Rheinland 1984, Chapter 7.3.
Ip Paul
Linde Aktiengesellschaft
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