Siemens SINUMERIK 802S Technical Manual page 80

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Dynamic adaptation for thread G331/G332
Function
Activation
4-40
Connect the storage oscilloscope to X7 (50-pin plug connector):
Pin 1 – setpoint +10V
Pin 6 – analog ground
The axis setpoint value is switched using MD:
31500 AXIS_NUMBER_FOR_MONITORING
Example:
The axis setpoint value of the Z axis is to be output at connector X7.
To this end, enter the following value in the axis MD of the 3rd machine axis
(Sp):
Turning: AXIS_NUMBER_FOR_MONITORING[AX4] = 2
(Z axis always has axis number 2)
Milling: AXIS_NUMBER_FOR_MONITORING[AX4] = 3
(Z axis always has axis number 3)
Notice
With this setpoint assignment (AXIS_NUMBER_FOR_MONITORING unequal
to 0), servo enable is always 0.
After the measuring process, but at least before the spindle setpoint value is
connected to X7, the MD AXIS_NUMBER_FOR_MONITORING[AX4] = 0
must be set and the control system be switched off and back on again
(POWER ON).
The dynamic response of spindle and involved axis for the function G331 /
G332- thread interpolation - can be adapted to the "slower" control loop.
Usually, this concerns the Z axis, which is adapted to the more inert response
of the spindle.
If an exact adjustment is carried out, it is possible to sacrifice of a
compensating chuck for tapping. At least, higher spindle speeds/smaller
compensation paths can be achieved.
The values for the adaptation are entered in MD 32910 DYN_MATCH_TIME
[n], usually for the axis.
The adaptation is only possible if MD 32900 DYN_MATCH_ENABLE =1 has
bee set for the axis/spindle.
With the function G331/G332 active, parameter block n (0...5) of the axis of
MD 32910 acting corresponding to the spindle gear stage
becomes active. The gear stage is dependent on the spindle speed with M40
or is set directly via M41...M45 (see also Section 4.5.3 "Start-up of the
spindle").
Number
32900 Dynamic response adaptation
32910 Time constant of dynamic adaption
(control parameter set no): 0...5
Description
automatically
Default Value
0
0.0
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