Real-Time Tuning 1 (Speed Gain); Outline - Mitsubishi Electric M800VW Series Programming Manual

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M800V/M80V Series PLC Programming Manual (2/2)

14 PLC Help Function

14.29 Real-Time Tuning 1 (Speed Gain)

This function estimates the inertia (or workpiece weight) of mechanical system and changes the speed control gain

automatically according to the estimation results to suppress mechanical vibration.

For example, this suppresses vibration caused when a large workpiece becomes smaller in turning machining as illustrated in

Example 1 below. This function also suppresses vibration caused when a workpiece that is relatively small for the table is

replaced by a larger one as illustrated in Example 2 below.

Using this function, users can expect suppression of vibration caused by inertia fluctuation, as well as reduction of machining

time through adaptation of appropriate speed control gain.

This function also commands a stop of speed control gain change and displays the estimated inertia ratio and magnification of

speed control gain (ratio of the changed speed control gain to the initially set gain).

Example1: Turning machining

Example2: Workpiece replacement

Speed waveform

Example1: Turning machining

Example2: Workpiece replacement

Speed waveform

Real-time tuning 1

IB-1501668-B

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