Introduction; Function Overview; Recommended Gap Sensor Specifications; Restrictions - YASKAWA SGD7S series Product Manual

4.1 Introduction

4.1.1 Function Overview

4.1

Introduction

4.1.1

Function Overview

Clearance control is used to maintain a distance (gap) between a processing head and the sur-
face of the workpiece it is processing to match the offset specified by the host controller. Input
the analog signal from the gap sensor into the SERVOPACK to control the distance between
the processing head and workpiece surface.
4.1.2

Recommended Gap Sensor Specifications

• Output voltage: ±12 V
• Response frequency: 500 Hz min.
4.1.3

Restrictions

The following functions are disabled when clearance control is executed. When clearance con-
trol is not being executed, these functions operate according to the parameter settings.
• Predictive control
• Model following control
• Backlash compensation
4-2
Gap sensor on
processing head
Feed direction
Z
+
-
Gap
Workpiece surface