Yaskawa YASNAC PC NC Programming Manual - Manual (Page 218)

4 - 81
YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
Table 4.2.3.8 Parameters for Setting Valid/lnvalid of Stored Stroke Limit for Rotary
Axes
Note: Stored stroke limit check is executed or not executed according to the setting for the bits.
0: Limit check is not executed.
1: Limit check is executed.
(3) Supplements to the Stored Stroke Limit B and C Functions
• It is possible to set two areas in stored stroke limit B, C with stored stroke limit A.
• Whether the stored stroke limit function is valid or invalid is judged immediately after
the return to the reference point from the setting for the corresponding parameter bits.
If the reference point is set in the entry prohibited area, an alarm occurs; in this case,
set the parameter bit so that the stored stroke limit check function becomes valid after
the completion of reference point return of all axes after power ON.
• If the axis to be checked is in the entry prohibited area, an error occurs immediately
when the stored stroke limit check function becomes valid. In this case, turn OFF the
No. 2 to No. 5 entry prohibited areas by the setting operation and either change the
data or move the axes out of the entry prohibited area manually.
• If an alarm occurs due to the entry of an axis into the entry prohibited area, only the
axis movement in the opposite direction is allowed.
• If the machine lock function is ON, stored stroke limit check is not possible.
• With the axes not specified with G22 command, the stored stroke limit check is exe-
cuted with the values set for parameters.
• The stored stroke limits B and C allows the designation of two areas at the same time.
If more than two areas are made valid at the same time, an alarm occurs.
• When setting the coordinate values for defining a stored stroke limit area width, set the
values which are greater than the value obtained by the calculation using feedrates. If
the stored stroke limit area width is set smaller than the calculated value, there is a case
that an alarm cannot be detected.
Axis Name X Y Z 4 5
Parameter pm6004 D0 pm6004 D51 pm6004 D2 pm6004 D3 pm6004 D4