Method for transmitting information in controller and method for detecting abnormality in encoder

A robot including a motor is used to machine a workpiece. The robot further includes the following components: a controller configured to output a speed command and commanded-position information; an encoder; a position sensor configured to output, as a differential signal, the amount of displacemen...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Aimi, Kei, Kinugasa, Yasuhiro
Format:	Patent
Sprache:	eng
Schlagworte:	CHAMBERS PROVIDED WITH MANIPULATION DEVICES CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HAND TOOLS MANIPULATORS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS PORTABLE POWER-DRIVEN TOOLS REGULATING TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A robot including a motor is used to machine a workpiece. The robot further includes the following components: a controller configured to output a speed command and commanded-position information; an encoder; a position sensor configured to output, as a differential signal, the amount of displacement of the position of the workpiece W from a predetermined position; a servo driver configured to control the motor upon receiving the speed command, the output signal of the encoder, and the differential signal; and a safety unit configured to detect a fault in the encoder. When controlling the motor based on the speed command, the output signal, and the differential signal, the servo driver sends the differential signal to the controller. The controller sends the safety unit new commanded-position information, which is generated by adding a correction value based on the differential signal to the commanded-position information.