Method for controlling a gas valve system for a gas burner and gas cooking appliance with a gas burner with such a gas valve system

摘要

The following steps are carried out in a method for controlling a gas flow to a gas burner (101) by means of a gas valve system (100): determining and recognizing a control valve fault as a control valve fault condition and closing a shut-off valve (104) in this case. For this purpose, the gas valve system has a control device (102), a control valve (103) and a shut-off valve (104). The control valve is a stepper motor valve with actuator (106) and stepper motor (107). The control valve error condition is when the stepper motor is blocked within a normal control range (110) of the control valve or when there is an actual position value error. This actual position value error occurs when the actuator is in a reference position (POS reference) and the stepper motor blocks it when it is reached with an actual position value (WIst) that is more than a predefined tolerance value from the position reference value ( WReference) differs.