Fagor 8025 GP, Operating Manual

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8025/8030 CNC PROGRAMMING MANUAL 233
11.9. M19. ANALOG S OUTPUT (CREEP) FOR TOOL CHANGE AND SPINDLE
ORIENTATION
There are different possibilities for operating with M19.
a) If M19 is not followed by S4.3, when this function is executed the CNC will send out
code M19 and will apply to the spindle an analog output defined by P601(7) and P700.
The remaining analog output is deleted when execution any other M or programmed
S4.
b) If S4.3 is programmed right after M19 the CNC will send out code M19 and will apply
to the spindle an analog output defined by P601(7) and P700 until the spindle reaches
the position identified in degrees by S4.3, referred to the zero marker. In this case, no
other information is allowed in the same block.
c) If the machine parameter P615(8)=1, on executing function M19, the CNC will search
for machine reference in the spindle at the same time as the movement of the axes.
d) The machine parameter P916 determines the position of the spindle stop when the
functions M06 are executed (tool change) or M19 without programming S, in both
cases, whenever the machine is fitted with an encoder on the spindle, and due to this,
parameter P800 must have a different value from 0. If a value of 0 is given to it, the CNC
ignores all positions. The remaining assignable values go from 0.001 to 360.
e) Machine parameters P917 and P918 determine the lower and upper limits of the range
of travel of the spindle, respectively, with M19. When a movement is executed into the
forbidden area, the CNC will indicate error 74, this being the area which exists between
both limits.
More information on the use of M19 is to be found in the 8025/30 CNC START UP
MANUAL.The application of this feature involves the installation of rotary encoder on to
the spindle.