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4. REFERENCE POSITION ESTABLISHMENT
377
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
[Unitofdata] 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.
NOTE
When this parameter has been set, the power must be
turned off before operation is continued.
Number Message Description
090 REFERENCE RETURN
INCOMPLETE
The reference position return cannot
be performed normally because the ref-
erence position return start point is too
close to the reference position or the
speed is too slow. Separate the start
point far enough from the reference
position, or specify a sufficiently fast
speed for reference position return.
Check the program contents.
091 REFERENCE RETURN
INCOMPLETE
Manual reference position return can-
not be performed in the feed hold state.
Perform a manual reference position
return in the automatic operation stop
state or reset state.
224 RETURN TO
REFERENCE POINT
Not ret ur ned to ref er ence position before
cycle star t . (Only when parameter ZRNx
(No. 1005#0) =0).
Do reference position return.
NOTE
P/S alarm No. 090 is issued when G28 is specified if the
reference position has not yet be established.
Alarm and message
Note