10.2 Spindle orientation with standard PLC-program
With the standard PLCprogram as of 234 601 03, three possibilities are available for spindle orientation:
.via an orientation cycle
.as a PLC-positioning routine
.to the reference mark (the positioning value for the reference mark is stored under MP 240)
Selection between the 3 possibilities is possible via MP 158.
The entry value for MP 158 is derived from the sum of these entry values and, if applicable, previous
entry values.
Function
Parameter
luo.
Entry value
Spindle orientation with Ml9
158
0 f inactive
4096 2 from orientation cycle or as per MP 240”
Spindle position with Ml9
8192 1 PLC-positioning routine, nominal value
from MP 156
The spindle position is activated through M 19, the position is held by itself until M 00, M 02, M 04, M 05,
M 13, M 14 or M 30 is output.
With output of M 19, the strobe signal is maintained at 1 until the spindle is orientated. The feedback
signal may only take place when the M-strobe is at 0 again. M.05 is simultaneously output with M 19.
*the spindle Iposition is derived from MP 240 if no cycle was programmed.
With spindlle positioning for a spindle which is already rotating, the slewing speed is firstly reduced
corresponding to the ramp setting (machine parameter MP 248). Positioning then takes place within
the positioning loop.
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