Numerically controlled machine tool safety circuit has pair of image tables in the numerical control circuit connected to robotic safety circuits

摘要

The numerically controlled machine tool has a first automatic safety control robot (16) in the NC control circuit. A first image table (15) in the same control contains images representing the machine tool. A safety module (20) is connected to the NC control by a safety connection. A second automatic safety robot circuit (26) in the module has connections (29) to exchange information with the first safety circuit. A second image table (25) is accessible by the second automatic safety circuit.