| 摘要 |
A beverage preparation machine is electrically operated and has a control unit, at least one functional unit, and an electric circuit for supplying the functional unit and the control unit with current. The electric circuit has a switch for switching the current on or off, through respective first and second operations of an operating element. The switch has a first switch contact and a second switch contact, which are connected in parallel in the electric circuit. The first switch contact is brought into a closed state by the first operation of the operating element, and assumes an open state after the second operation. The control unit provides a control signal so that the second switch contact is closed after the first operation of the switch and opened after the second operation of the switch. |
| 主权项 |
1. A method of operating a beverage preparation machine for preparing and dispensing a beverage, said beverage preparation machine comprising:
an electrically operated control unit; at least one electrically operated functional unit for carrying out at least one process involved in the preparation and dispensing of the beverage; an electric circuit for supplying the functional unit and the control unit with current, and comprising a switch for switching current (I) on and/or off, said switch comprising:
a first switch contact;a second switch contact; andan operable operating element, wherein said switch contacts are connected in parallel with electric circuit, and wherein the current is switched on by way of a first operation of the operating element to bring said switch contacts into a closed state and the current is switched off by a second operation of the operating element following the first operation, by bringing said switch contacts into an open state; the method comprising the following steps:
switching on the beverage preparation machine by operating the operating element a first time, to bring the first switch contact into the closed state;bringing the control unit into an operational state in which the control unit provides a control signal which causes the second switch contact to assume the closed state;switching off the beverage preparation machine by operating the operating element a second time by bringing the first switch contact into the open state;registering the operation of the operating element by the control unit; andproviding a control signal from the control unit by which control signal the second switch contact, after registering the operation of the operating element, is brought into the open state. |
