HEIDENHAIN MANUALplus 620 Technical Manual page 779

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January 2012

For identical motors, the factors of the speed controller should be identical

to ensure identical dynamic behavior.

Test the tensioning torque:

With the integrated oscilloscope, record the nominal current (I nominal) of

the master and the slave axes at standstill.

Send a step to the speed controller and, with the integral oscilloscope,

record the nominal current of the master and slave axes.

If there is a discontinuity in the course of the nominal current, increase the

tensioning torque for the slave axis in MP_torqueBias.

The lower the ratio of the total mass moment of inertia (transmission,

machine table, etc.) to the motor mass moment of inertia, the smaller the

required tensioning torque is (MP_torqueBias).

6.14 Synchronized Axes (Option 24)

Discontinuity