YASKAWA SGD7S series Product Manual page 122

Adjusting the Feed
Shaft Servo Gain for
Cutting Applications
This chapter describes servo gain adjustments with a cut-
ting application that are necessary for high-speed, high-
precision trajectory tracking.
6.1 Introduction to Feed Shaft Servo Gain Adjustment . . 6-2
6.2 Flow of Feed Shaft Servo Gain Adjustments . . 6-3
6.3 Pre-adjustment Checks . . . . . . . . . . . . . . . . 6-4
6.3.1 Selection of Speed Loop Control Method . . . . . . 6-4
6.3.2 Setting the Moment of Inertia Ratio . . . . . . . . . . . 6-4
6.4 Mode (Gain) Selection . . . . . . . . . . . . . . . . . 6-5
6.4.1 Mode (Gain) Selection Specifications . . . . . . . . . 6-5
6.4.2 Servo Command I/O Signals (SVCMD_IO) . . . . . 6-6
6.4.3 Confirming the Set Gain Bank . . . . . . . . . . . . . . . 6-6
6.5 Tuning the Servo Gains . . . . . . . . . . . . . . . . 6-7
6.5.1 Parameters That Are Adjusted for Cutting
Feeding (G01) and Rapid Feeding (G00) . . . . . . . 6-7
6.5.2 Cutting Feed (G01) Servo Gain Adjustment . . . . . 6-9
6.5.3 Rapid Feed (G00) Servo Gain Adjustment . . . . . 6-14
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