Ebm-Papst Landshut Gmbh

Ebm-Papst Mulfingen Gmbh & Co Kg

Markus Weingart

Enno Jan Vrolijk

Sebastian Schroth

Martin Hertreiter

Frank Schlopakowski

Jens Hermann

Martin Deininger

Bernhard Simon

Stephan Wald

Volker Kleine

Tobias Ernst

Andreas Kerschreiter

Erich Greiner

Robert Goldner

Anton Berghammer

Franz Riedmueller

Frank Kutschbach

Jürgen Schwalme

Markus Holzner

Franz RIEDMÜLLER

Daniel Kreuzer

A method for evaluating a quasi-stationary pressure difference detectable by a sensor at a gas boiler. The gas boiler has a mixing device (), a fan (), a main flow regulator (), a control valve () and a safety valve (). The sensor detects a differential pressure between a pressure (p) at a measuring point upstream of the main flow regulator () and downstream of the control valve () and a reference pressure (p, p) at a reference measuring point. The sensor transmits a signal to an electronic evaluation system. The electronic evaluation system compares the differential pressure during a pre-purge phase, wherein the safety valve () is closed, with the differential pressure after the pre-purge phase and detects an error by the comparison.

Method for evaluating a quasi-stationary pressure difference detectable by a sensor at a gas boiler, and associated gas boiler

The invention relates to a method for checking a time-discrete signal value of a sensor for freedom from errors, wherein the signal value of the sensor is converted into a first measured value and a second measured value by two different evaluating devices of an electronic system, wherein the first and second measured values are transmitted to a control system by the electronic system, and the control system calculates a first control signal from the first measured value and, in parallel thereto, a second control signal from the second measured value, wherein the control system comprises a comparator which compares the first control signal and second control signal to verify the identity thereof.

Method for checking a time-discrete signal value of a sensor for freedom from errors

A method for detecting faulty operation of a gas blower driven by an electronically commutated DC motor. The DC motor of the gas blower is controlled by an integrated electronic motor control circuit. The electrical current draw, required in operation to reach a predetermined blower speed of the gas blower, is measured. It is measured as a measured variable via the electronic motor control circuit. The electronic motor control circuit performs a plausibility check of the measured electrical current draw. The measured value of the electrical current draw, at a predetermined blower speed, is compared to a current draw reference value characteristic stored in the electronic motor control circuit. Thus, a warning and/or an error code is issued by the electronic motor control circuit. The warning is based on deviation of the measured value of the electrical current draw beyond a tolerance range around the reference characteristic.

Method for detecting the faulty operation of a gas blower driven by a DC motor

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Rottenburg, Germany

Markus Weingart