
4.REFERENCE POSITION ESTABLISHMENT B-63323EN-1/03
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NOTE
2 When reference position return is selected, an axis
whose reference position return end signal is
already "1" or an axis whose reference position
return end signal was set "1" upon completion of
reference position return is locked, and movement
along that axis is disabled while the reference
position return selection signal (ZRN) is "1". To
perform movement along such an axis, ZRN must
be set "0", and the feed axis and direction selection
signal must be set "0" then set "1" again.
Reference position return deceleration signals
*DEC1<G64#5>, *DEC2<G68#5>, ...
[Classification] Input Signal
[Function] These signals decelerate the feedrate for manual reference position
return so that the reference position is approached at a low feedrate.
The deceleration signals are provided for axes in a one-to-one
correspondence. A number appended to a deceleration signal
represents a controlled axis number.
*DECx
x : 1 : Reference position return deceleration signal for the first axis
2 : Reference position return deceleration signal for the second axis
3 : Reference position return deceleration signal for the third axis
:
:
[Operation] For the operation of the control unit in response to the deceleration
signal, see the description of the basic procedure for manual reference
position return.
Reference position proximity signal
*NZ1 <G384#4>, *NZ2<G392#4>, ...
[Classification] Input Signal
[Function] Indicates that a reference position is near in a reference position return
operation. When this signal is set to 0, the next grid becomes the
reference position. If this signal is not used, set this signal to 0 at all
times. In this case, the first grid after the deceleration signal (*DEC)
changes from 0 to 1 becomes the reference position.
[Operation] For information about reference position return operation using the
reference position proximity signal, see the description of the basic
procedure for the reference position return operation.
NOTE
With 15B, this signal is not entered through the PMC
but instead is directly entered into the CNC. With
15i, however, this signal is entered through the
PMC.