4. REFERENCE POSITION ESTABLISHMENT
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1821 Reference counter size for each axis
[Data type] Two–word axis
[Valid data range] 0 to 99999999
Set the size of the reference counter.
To set the size of the reference counter, specify the grid interval for the
reference position return in the grid method.
Size of the reference counter =
grid interval
detection unit
Grid interval = the amount of travel per rotation of the pulse coder
NOTE
When this parameter has been set, the power must be
turned off before operation is continued.
1836 Servo error amount where reference position return is possible
[Data type] Byte axis
[Unit of data] Detection unit
[Valid data range] 0 to 127
This parameter sets the servo error used to enable reference position return
in manual reference position return.
In general, set this parameter to 0. (When 0 is set, 128 is assumed as the
default.)
WARNING
When bit 0 of parameter No. 2000 is set to 1, a value ten
times greater than the value set in this parameter is used to
make the check.
Example: When the value 10 is set in this parameter, and bit 0 of
parameter No. 2000 is set to 1, reference position return
operation is enabled when a servo error of 100 or more occurs.
1850 Grid shift for each axis
[Data type] Two–word axis
[Unit of data] Detection unit
[Valid data range] –99999999 to 99999999
A grid shift is set for each axis.
To shift the reference position, the grid can be shifted by the amount set in
this parameter. Up to the maximum value counted by the reference
counter can be specified as the grid shift.