Method Of Function - HEIDENHAIN TNC 426 PB/M Technical Manual

Table of Contents

Method of function

Position control is deactivated in the slave axis. The nominal velocity of the

master axis is at the same time the nominal velocity of the slave axis. The

speed controllers of both axes remain independent. The manipulated variables

coming from the speed controllers, i.e. the nominal torque current values, are

weighted with the torque constants of the motors and compared with each

other. In addition, a tensioning torque (MP2900.x) can be introduced at this

comparison point. To permit a distribution of drive torque, the nominal torque

of the slave axis can be multiplied with a weighting factor (MP2920.x). The

result at the comparison point is fed to a torque balancing controller that

amplifies it proportionally (MP2910.x). The manipulated variable of the

balancing controller is a speed compensation value that is added to the current

speed value.

HEIDENHAIN Technical Manual TNC 426, TNC 430