Method for adjusting a magnetic release mechanism
AssigneeJohnson Electric S.A.
InventorsMatthias Kulke, Christian Urban, Jörg Schierz
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AssigneeJohnson Electric S.A.
InventorsMatthias Kulke, Christian Urban, Jörg Schierz
Estimating the term…
A method for adjusting a magnetic release mechanism includes steps: a first measurement of the present release current I of the magnetic release mechanism is carried out, a decision is made as to whether an adjustment step is performed, a start-adjustment current IJ0 is selected, a second measurement of the present release current I of the magnetic release mechanism is carried out, a decision is made as to whether an adjustment step is performed and that in the event that an adjustment step is necessary, a selection of a certain differential amount ΔIJ takes place, partial demagnetisation of the permanent magnet is carried out in a further adjustment step with the adjustment current IJ formed in this way and the steps are carried out in succession until the release current I measured lies within a specified range between ITARGET_min and ITARGET_max.
A method for adjusting a magnetic release mechanism (1), in which at least partial demagnetisation of a permanent magnet (2) arranged in the magnet release mechanism (1) takes place to achieve a specified release current, wherein an adjustment takes place automatically in one or more adjustment steps, whereby in a first step of the method a first measurement of the present release current I of the magnetic release mechanism (1) is carried out, whereby in a second step of the method, depending on this release current I measured, a decision is made as to whether an adjustment step is performed and that in the event that an adjustment step is necessary, a start-adjustment current IJ0 is selected in a third step with which, in a fourth step of the method, the partial demagnetisation of the permanent magnet (2) is carried out in an adjustment step, that in a subsequent fifth step of the method a second measurement of the present release current I of the magnetic release mechanism (1) is carried out, that in a sixth step of the method, depending on this present measured release current I, a decision is made as to whether an adjustment step is performed and that in the event that an adjustment step is necessary, in a seventh step of the method a selection of a certain differential amount ΔIJ takes place, which is added in an eighth step of the method to the adjustment current IJ selected in the previous adjustment step, that in a ninth step of the method the further partial demagnetisation of the permanent magnet (2) is carried out in a further adjustment step with the adjustment current IJ formed in this way and that the steps five to nine of the method are carried out in succession until the release current I measured in the fifth step of the method lies within a specified range between ITARGET_min and ITARGET_max.
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