Motor and feedback selection

The motor should be selected first, then the measuring system. This order ensures that the pole pair distance of the linear motor is automatically taken into account in the feedback settings of the parameter.

In the case of linear encoders with TTL signals, a distinction must be made between the signal period and the resolution. The manufacturers specify the resolution when evaluating all edges ("after quadrupling"). For the AX5000 the signal period must be specified. A measuring system whose resolution is specified by the manufacturer as 1 µm, for example, has a signal period of 4 µm and must be selected accordingly (picture below):

Motors with a pole pair distance that is not an integer represent a special case!
It is necessary to specify the "Signal periods per rotation" in parameter P-0-0150.

Sample:

With a pole pair distance of 28.1 mm and a sine period length of the linear encoder of 1 mm, a value of 28.1 would be correct. However, only integer values can be entered there. The Tc Drive Manager therefore enters the value 28 in P-0-0150 (picture below):

The feedback gear unit is now automatically activated in order to correct the error described above (picture below).