14.2 Servo control
14-45
7. When the MD3030 value is determined, set the speed loop integration time constant
MD3030 (Pn101) as follows:
• MD3030 = 2000000/(MD3030
×
2
π
)
• Be sure to set speed loop integration time constants to the same value among the interpolation
axes; otherwise, processing accuracy is affected.
• If a low frequency vibration is produced when you use this function, use torque filters or torque
reference notch filters instead.
14.2.8 Predictive control
To use predictive control for cutting feed and positioning, set the following machine data
and parameters.
Predictive control having been enabled with the following settings may become active/inac-
tive in the following cases:
• Predictive control for cutting feed: Always active during programmed operation except
during rigid tapping.
(Predictive control becomes inactive during rigid tapping because the Spindle and servo
gain are to be equal each other.)
• Predictive control for positioning: Always active for positioning during RAPID, JOG,
and programmed operations excluding during handle or step feed operations.
(During handle and step feed operations, predictive control becomes inactive.)
For procedures how to set predictive control, refer to a separate manual.
If model following control is used for positioning, disable predictive control.
CNC setting
For feed axis
• MD37610 PROFIBUS_CTRL_CONFIG (For each Servo axis)
Meaning:
CNC feed mode transmission to a drive
Setting value: 0 --- Disabled
1 --- Enabled
Assign "1" (Enabled) to this parameter if the predictive control is used.
Note: Set this parameter to "Disabled" for Spindle; otherwise, you cannot
change over Spindle drive parameters (DBX21.0-2) from PLC.
INFO
INFO
Summary of Contents for CNC Series
Page 1: ...Maintenance Manual Serviceman Handbook MANUAL No NCSIE SP02 19 Yaskawa Siemens CNC Series...
Page 26: ...Part 1 Hardware...
Page 38: ...System Configuration 1 2 3 Spindle motor designations 1 12...
Page 58: ...Installing the control panels 2 3 5 Installing lightning surge absorbers 2 20...
Page 62: ...Installing the motors 3 4...
Page 84: ...Connection method 4 3 2 Setting the rotary switches on the inverters and servo units 4 22...
Page 96: ...Part 2 Software...
Page 102: ...Software configuration 6 6...
Page 113: ...7 2 Network settings 7 11 8 Click on the radio button to the left of Specify an IP address...
Page 121: ...7 2 Network settings 7 19...
Page 122: ...Part 3 PLC...
Page 154: ...Part 4 Setting up and maintenance...
Page 160: ...Overview of System 10 1 2 Basic operation 10 6...
Page 204: ...How to use Digital Operation 12 2 9 Setting the password setting for write prohibit 12 32...
Page 327: ...Error and Troubleshooting 15 4...
Page 328: ...15 1 Errors without Alarm Display and Troubleshooting 15 5...
Page 329: ...Error and Troubleshooting 15 6...
Page 343: ...Maintenance and Check 16 3 3 Setting up Initializing Absolute encoder 16 14...