HEIDENHAIN MANUALPLUS 620 - 6.4.2 Signal period of encoders

648 HEIDENHAIN Technical Manual MANUALplus 620
6.4.2 Signal period of encoders
For any given distance the position encoder supplies a fixed number of signal
periods. The signal (except for EnDat 2.2 encoders) is also interpolated in the
control.
The settings you need to define may vary depending on the type of position
measurement on your machine.
Linear encoder General information
The MANUALplus 620 requires the following values:
 MP_posEncoderDist: For each axis, enter the distance required for the
number of grating periods given in MP_posEncoderIncr.
 MP_posEncoderIncr: Enter the number of grating periods required for the
distance given in MP_posEncoderDist.
 MP_distPerMotorTurn: Enter the traverse distance per motor revolution.
The MANUALplus 620 calculates the quotient:
Signal period =
The MANUALplus 620 needs the following values for linear encoders with
EnDat 2.1 interface or for linear encoders with EnDat 2.2 interface, which
supply a grating period:
 MP_posEncoderDist: For each axis, enter the length of one grating period
of the encoder.
 MP_posEncoderIncr: Enter the number of increments per grating period.
 MP_distPerMotorTurn: Enter the traverse distance of the axis per motor
revolution.
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the parameter set]
CfgAxisHardware
distPerMotorTurn
posEncoderDist
posEncoderIncr
posEncoderRefDist
400004
400005
400006
400007
MP_posEncoderDist
MP_posEncoderIncr
--------------------------------------------------------------------
Note
The MC 320 (TNC 320) and MC 320T (MANUALplus 620) main computers
do not yet support the connection of EnDat 2.2 encoders.