DE2149812A1 - SETUP IN PROGRAM CONTROL SYSTEMS - Google Patents

Description

2H9812

H 2207 '

W * Holier - 259

HÖLZER PATENT AG * CH-6301 Zug, Poststr.

Setup in program controls

The invention relates to a device in program controls which are used to switch off, in particular, in l. ^r ash and dishwashing machines has a contact ("blocking contact") when the consumers quickly run over ("Schnellgar.g") several program positions one after the other.

For program controls in washing machines and dishwashers it happens that certain benefits are faded out a larger number of Pr

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can be skipped in so-called "overdrive". Further it is possible to operate program controls by hand, with a larger number of individual program positions is skipped one after the other.

To when skipping a large number of individual program positions to prevent that various consumers present in washing machines or dishwashers, such as e.g. valves, detergent dispensing devices, relays etc. respond, although this is not intended per se when running over the relevant program sections, so-called blocking contacts are used in known program controls, which when quickly overrun the Switch off the affected program sections all or part of the consumers of the device. But here it can happen that the locking contact present in the program control when manual adjustment of the program control is open in AÜS-Poeition. Because household appliances and in particular Washing machines and dishwashers, for safety reasons, insulation tests before they are finished are subjected, the disconnection of consumers inside the household appliance has the consequence that with the iBOlation measurement of the switched off consumers and cler & n Feed lines not included in front of / orden, eo.forn the Tno -

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lation measurement in the vicinity of the power switch "or on the entire supply line is made.

Eb is the object of the invention to create a device with the help of which, even with manual adjustment of a program control up to the OFF position, insulation measurements are possible at central measuring points. For this purpose, separate additional ones, only used for insulation measurement, should be used Switching connections on the program control can be dispensed with. According to the invention, the stated object is achieved solved in that the blocking contact is parallel to an additional contact, which is in the OFF position of the program control closed is.

The subject of the application has the advantage over the known program controls that insulation measurements the program control itself and also the entire electrical device to which the program control is possible without additional wiring bridges that are only used for insulation measurement. This enables a quick electrical safety check to be carried out on the entire device with the simplest of means will.

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The subject of the application is made with the help of a drawing explained. In the drawing, an electrical circuit diagram of the subject of the application is shown.

An electrical household appliance, such as a washing machine or dishwasher, is in the Pig. 1 is provided with the reference number 6 and its housing is indicated by broken lines below. A program control 4 is housed within the household appliance 6. Various consumers of the household appliance, for example a heating coil 15, a valve 21, a relay 20, a motor 19, etc., are switched on and off from the program control 4. The entire household appliance 6 can be connected to mains cables 1 and 2 via a plug 3. For this purpose , the plug is plugged into sockets 12 and 13, and the protective conductor is connected via a socket 11. The protective conductor is connected to the housing of the household appliance 6 at a point 10. Instead of one. Plug 3 to be used, the household appliance 6 can be connected also via a fixed connection to the power lines. 1 and 2

Various program contacts 14, 16, 17, 18, etc. are actuated by the program control 4. In addition, in

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the program control 4 still, a blocking contact 7 and an additional contact 8 is available. The blocking contact 7 can temporarily individual consumers, so for example via the program contacts 16, 17, 18 and others. switched on can be disconnected from the mains. This always happens when the program switch is in high speed different program sections are skipped or turned further by hand. If the program switch is by hand has been switched to the ATJS position, it can happen that the blocking contact 7 is open and therefore, for example, the consumers 21, 20, 19 etc. are not connected to the mains supply lines or a mains switch 9.

Before the household appliance 6 is completed, insulation tests are carried out carried out. This happens, for example, in the in Pig. 1 between a measuring point 22 and the housing of the household appliance 6 or between a measuring point 23 and also the housing of the household appliance 6. With the blocking contact 7 open, the two measuring devices 24 and 25 in the embodiment according to the Pig. I.

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the consumers 19, "20 and 21 do not capture. To avoid this, the blocking contact 7 is an additional Contact 0 placed in parallel, which then automatically always ^ e-

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is closed when the program control 4 is in OFF position.

For the insulation measurement, the mains switch 9 is open or be closed.

The function of the additional switch 8 is in the OFF position the program control 4 is not influenced by the fact that the blocking contact 7 also accidentally closed. is.

209881/0583

Claims (3)

H 2207 - 7 - claims ^{1. A device in program controls, which has a contact ("blocking contact 11} )", characterized in that the blocking contact (7) has an additional contact, for switching off consumers in particular in washing machines and dishwashers when quickly driving over ("overdrive") several program positions one after the other (8) is parallel, which is closed in the OÜS position of the program control (4.). 2. Einriohtung according to claim 1, characterized in that the additional contact (8) is open in some program positions of the program control that is not identiech with the OFF position. 3. Device according to claim 1, characterized. that the additional contact (8) is open for all program positions of the program control that are not identical to the position. PT-Bri / Oe
9.6.4971 209881/0583 Lee r be e