S1: Spindles
16.2 Operating modes
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1267
16.2.5.2
Positioning from rotation
Initial situation
The spindle can be in speed control mode or in position control mode when positioning starts (
SPOS
,
M19
or
SPOSA
command in the program).
One must distinguish between the following cases:
Procedure
Figure 16-1 Positioning from rotation
Case 1:
Spindle in speed control mode, encoder limit frequency exceeded
Case 2:
Spindle in speed control mode, encoder limit frequency not exceeded
Case 3:
Spindle in position control mode
Case 4:
Spindle speed ‹ Position-control activation speed
Note
The speed arising from the configuration of the encoder limit frequency for the
resynchronization of the encoder (MD36302 $MA_ENC_FREQ_LOW) must be greater than
the position-control activation speed (MD35300 $MA_SPIND_POSCTRL_VELO).
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