6. Precise homing with use of the servo drive and the encoder INDEX signal
Homing using the encoder INDEX signal is another argument for servo drives. This type of homing is very
precise even if the HOME switch has a large switching tolerance. In practice, homing with the INDEX
allows us to eliminate inaccuracy of the HOME switch.
CSMIO/IP-M is STEP/DIR type controller and does not have the encoder input. It does not mean that it is
impossible to base on INDEX. Digital inputs are defined as homing (HOME) in the Mach3 program and are
operated in the controller in special way, to eliminate all delays and ensure the highest work precision and
repeatability. To do the homing on INDEX we need the servo drive that includes HOME signal and encoder
index synchronization. simDrive servo drives offered by our company have this function.
Typical connection with homing on index.
In case, if you would like to choose the servo drive and see if it will be possible to do homing on index, the
HOME signal synchronization should look like this:
(See next page…)
CS- Lab s.c. – CNC CSMIO/IP- M controller
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