
4.REFERENCE POSITION ESTABLISHMENT B-63943EN-1/02
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1821 Reference counter size for each axis
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] 2-word axis
[Unit of data] Detection unit
[Valid data range] 0 to 999999999
Set a reference counter size.
As a reference counter size, specify a grid interval for reference
position return based on the grid method.
When a value less than 0 is set, the specification of 10000 is assumed.
1836 Servo error amount where reference position return is possible
[Input type] Parameter input
[Data type] Word axis
[Unit of data] Detection unit
[Valid data range] 0 to 32767
This parameter sets a servo error used to enable reference position
return. In general, set this parameter to 0. (When 0 is set, 128 is
assumed as the default.)
If, during reference position return, such a feedrate as exceeding a set
value is not reached even once before the limit switch for deceleration
is released (the deceleration signal (*DEC) is set to 1 again), the alarm
(PS0090) "REFERENCE POSITION RETURN FAILURE" is issued.
If, during reference position return, such a feedrate as exceeding a set
servo error amount is not reached even once before the limit switch
for deceleration is released (the deceleration signal is set to 1 again),
the alarm (PS0090) "REFERENCE POSITION RETURN FAILURE"
is issued.
1850 Grid shift and reference position shift for each axis
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] 2-word axis
[Unit of data] Detection unit
[Valid data range] 0 to 99999999
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.
In case of parameter SFDx(No.1008#4) is 0: Grid shift
In case of parameter SFDx(No.1008#4) is 1: Reference point shift