HEIDENHAIN TNC 335 Technical Manual - Manual (Page 98)

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TNC 360 1 Machine Axes 4-1
Machine Integration – Contents 4
1 Machine axes 4-5
1.1 Measuring systems 4-5
1.1.1 Signal period 4-5
1.1.2 Direction of traverse 4-7
1.1.3 Measuring system monitoring 4-8
1.2 Axis designation 4-11
1.2.1 Assignment 4-12
1.2.2 Current tool axis 4-13
1.3 VDU display 4-13
1.4 Traverse ranges 4-15
1.5 Lubrication pulse 4-18
1.6 Axis-error compensation 4-21
1.6.1 Backlash compensation 4-21
1.6.2 Compensation for reversal errors in circular motion 4-22
1.6.3 Linear axis-error compensation 4-23
1.6.4 Nonlinear axis error compensation 4-24
1.6.5 Temperature compensation 4-29
1.7 PLC positioning 4-32
1.8 PLC Axes 4-35
2 Reference marks 4-36
2.1 Passing over the reference marks 4-38
2.1.1 Measuring systems with distance-coded reference marks 4-39
2.1.2 Measuring systems with one reference mark 4-43
2.1.3 Linear measurement via rotary encoder 4-46
2.2 Machine datum 4-49
3 Servo positioning of the NC-axes 4-51
3.1 The position control loop of an NC-machine 4-51
3.2 Servo positioning in TNC controls 4-52
3.2.1 Control with servo lag 4-52
3.2.2 Control with feed forward 4-60
3.3 Offset adjustment 4-63
3.3.1 Offset adjustment by code number 4-63
3.3.2 Automatic cyclical offset adjustment 4-63
3.3.3 Offset adjustment with integral factor 4-64
3.4 Contour behavior in corners 4-66
3.4.1 Radial acceleration 4-66
3.4.2 Constant feed rate in corners 4-66
3.4.3 Constant feed rate in corners with M90 4-67
3.5 Monitoring functions 4-68
3.5.1 Position monitoring for operation with lag 4-69