Contents
Output Cams and Measuring Inputs
4 Function Manual, Edition 03/2007
3 Cam Track TO - Part II ............................................................................................................................ 49
3.1 Overview of TO Cam Track......................................................................................................... 49
3.1.1 General information about Cam Track TO.................................................................................. 49
3.1.2 Functionality ................................................................................................................................ 51
3.1.3 Comparison of Output Cam TO and Cam Track TO .................................................................. 52
3.2 TO Cam Track basics ................................................................................................................. 53
3.2.1 Cam Track TO basics ................................................................................................................. 53
3.2.2 Cam track features...................................................................................................................... 54
3.2.3 Output cam types of the single output cams on a track.............................................................. 55
3.2.3.1 Software cam .............................................................................................................................. 55
3.2.3.2 Hardware cam............................................................................................................................. 55
3.2.3.3 Position-based cam..................................................................................................................... 56
3.2.3.4 Time-based output cam .............................................................................................................. 57
3.2.3.5 Time-based cam with maximum ON length................................................................................ 58
3.2.3.6 High-speed/accurate output cam ................................................................................................ 59
3.2.4 Cam track parameters................................................................................................................. 60
3.2.4.1 Track length ................................................................................................................................ 61
3.2.4.2 Effective direction and behavior.................................................................................................. 61
3.2.4.3 Hysteresis.................................................................................................................................... 61
3.2.4.4 Derivative-action times (activation time/deactivation time) ......................................................... 64
3.2.4.5 Cam track activation.................................................................................................................... 65
3.2.4.6 Cam track deactivation................................................................................................................ 66
3.2.4.7 Leave cam track active in the axis range (as of V4.1) ................................................................ 66
3.2.4.8 Start mode and stop mode.......................................................................................................... 67
3.2.4.9 Output activation mode ............................................................................................................... 69
3.2.4.10 Axis reference position and cam track offset .............................................................................. 70
3.2.4.11 Simulation.................................................................................................................................... 71
3.2.5 Configure Units ........................................................................................................................... 71
3.2.6 Mapping a cam track onto an axis .............................................................................................. 71
3.2.6.1 Basics of cam track mapping ...................................................................................................... 71
3.2.6.2 Mapping output cams onto the cam track................................................................................... 72
3.2.6.3 Mapping onto negative axis positions (e.g. linear axes) ............................................................. 73
3.2.6.4 Relation of track length, modulo length and activation mode in mapping .................................. 74
3.2.7 Cam track operating behavior..................................................................................................... 77
3.2.7.1 Changing output cams on a cam track during runtime ............................................................... 77
3.2.7.2 Changing the track length during operation................................................................................ 78
3.2.7.3 Changing the axis configuration when a cam track is active ...................................................... 78
3.2.7.4 Calling up the status of cam tracks and single output cams....................................................... 79
3.2.8 Inverting a cam track................................................................................................................... 79
3.2.9 Effect of cam track parameters on mapping ............................................................................... 79
3.2.9.1 Basic mapping of a simple cam track ......................................................................................... 80
3.2.9.2 Advanced mappings with shifted output cam positions .............................................................. 81
3.3 Configuring the TO Cam Track ................................................................................................... 82
3.3.1 Inserting cam tracks .................................................................................................................... 83
3.3.2 Parameterizing the Cam Track technology object ...................................................................... 83
3.3.3 Using expert list for cam tracks................................................................................................... 84
3.3.4 Configuring a cam track .............................................................................................................. 85
3.3.5 Defining cam track defaults......................................................................................................... 87
3.3.5.1 Track data ................................................................................................................................... 88
3.3.5.2 Output cam data.......................................................................................................................... 90
3.3.6 Configuring hardware output cams for cam tracks ..................................................................... 91
3.3.7 Determining derivative-action times for cam tracks (dead time compensation) ......................... 94
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