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Chapter Four Machine Debugging
233
V
o
lume IV
Inst
allation &
Connecti
on
Appendix: The setting method of rigid and flexible tapping when GSK218MC
system matches with DAP03 spindle servo drive unit
Precautions:
(1) 218MC must be matched with the DAP03 spindle servo drive unit when it is performed the rigid
tapping.
(2) 218MC should be correctly connected with the DAP03 spindle servo drive unit when it is
performed the rigid tapping.
Setting processing:
A. Rigid tapping setting: Use the system default parameter; and only the following parameters can
be altered.
1. Bit parameter:
NO:46#1
changes into 1 (Servo mode)
2. PLC parameter:
K7#7
changes into 1 (User the spindle position mode).
3. Data parameter: The upper limit velocity of the
P257
parameter set into consistent with the one
of the spindle.
4. Data parameter: The P294 parameter tapping corresponding to the gear 1 velocity is set to the
same with the tapping upper limit one.
5. The parameter PA4 in the DAP03 parameter is set to 5. (Velocity and position shifting mode)
6. The spindle’s rotation direction is inconsistent with the one of the command when performing the
rigid tapping command, it is better to set the PA15 in the DAP03 into 1.
7. Data parameter: The linear acceleration/deceleration time constant of both the P298 spindle and
tapping axis are altered into 300.
8. Data parameter: The time constant both the spindle and tapping axis are altered into 300 when
P302 retracts.
9. It is supposed to shift the position mode, when the spindle rotation velocity is inconsistent with
the one of the command, the data parameter P323 and P326 can be modified, or alter the PA12
and PA13 in DAP03 parameter, and then calculate the electric gear ratio based upon the
formula P*G=N*C*4.
P: Input the pulse number of the code
G: Electric gear ratio
N: The circles of the motor rotation
C: Photoelectric encoder resolution
10. When the gear ratio between the spindle and motor is not 1:1, the corresponding gear ratio that
inputs the PA35, PA36 in the DAP03 should be calculated out.
11. The positive/negative of the spindle should be guaranteed consistent with the rotation direction
of the tapping when tapping. The revolving wave should not be too much, and it is better to
control the error within 3 rotations.