Synchronous controller

Details Synchronous controller Synchronous controller

2005-12-09

2010-12-28

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

C318S085000, C318S560000

Reexamination Certificate

active

07859214

ABSTRACT:
A synchronous controller capable of gently changing a synchronous multiplying factor and setting the gentleness of changing of the synchronous multiplying factor without shocking a machine. A block for gently changing the synchronous multiplying factor is added between blocks before and after the changing of the synchronous multiplying factor. Synchronous multiplying factors a and b before and after changing of the synchronous multiplying factor designated in the added block, a motion amount p of master axis, a motion amount of a slave axis, and a residual motion amount v of the master axis after the completion of changing the synchronous multiplying factor (or a preliminary motion amount u of the master axis from the start of motion of the block concerned to a position for the start of changing of the synchronous multiplying factor) are read out. A gradient of changing the synchronous multiplying factor and the preliminary motion amount u (or the residual motion amount v) are obtained based on these data. The slave axis is controlled based on the motion amounts u and v and the gradient of changing the synchronous multiplying factor. The synchronous multiplying factor is changed so gently that the machine cannot be shocked. The synchronous multiplying factor gradient can be settled depending on the designated data p, q and v (or u).

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Extended European Search Report issued in corresponding European Patent Application No. 05257527.1 on Apr. 1, 2008.

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