Contents 12.2010
Siemens AG 6SE7087-6QX70 (Version AM)
SIMOVERT MASTERDRIVES Compendium Motion Control 9
9.4.19 Evaluation and control of the position sensing system,
simulation mode [815] .................................................................................... 9-62
9.4.20 Setpoint output and enabling [817]................................................................. 9-63
9.4.21 Faults, warnings, diagnostics [818] ................................................................ 9-63
9.4.22 Setup mode [819] ........................................................................................... 9-64
9.4.23 Homing mode [821] ........................................................................................ 9-65
9.4.23.1 Homing with homing switch only .................................................................... 9-68
9.4.23.2 Homing with encoder zero mark only ............................................................. 9-69
9.4.23.3 Use of a reversing switch during homing ....................................................... 9-69
9.4.24 MDI mode [823] .............................................................................................. 9-70
9.4.25 Control mode [825] ......................................................................................... 9-74
9.4.26 Automatic and automatic single-block mode [826, 828]................................. 9-75
9.4.27 Roll feed [830]................................................................................................. 9-75
9.4.28 Synchronization mode - overview [831] ......................................................... 9-76
9.4.29 Virtual master axis [832] ................................................................................. 9-84
9.4.30 Real master with deadtime compensation [833] ............................................ 9-85
9.4.31 Engaging/disengaging cycle [834].................................................................. 9-86
9.4.32 Gearbox function [835] ................................................................................... 9-91
9.4.33 Generation of the position setpoint [836]........................................................ 9-92
9.4.34 Catch-up function [837] .................................................................................. 9-92
9.4.35 Cam [839] ....................................................................................................... 9-93
9.4.36 Synchronization to master value [841] ........................................................... 9-99
9.4.37 Displacement angle setting [841] ................................................................. 9-100
9.4.38 Position correction [843] ............................................................................... 9-101
9.4.39 Referencing "on the fly" for synchronization [843]........................................ 9-102
9.4.40 Docking point between basic positioner [789b] and synchronism [836] ...... 9-103
9.4.41 Continue synchronism .................................................................................. 9-109
9.5 Communication with the technology............................................................. 9-110
9.5.1 Process data communication (PZD)............................................................. 9-110
9.5.2 Parameter transfer (PKW) ............................................................................ 9-113
9.5.3 Standard function blocks for PROFIBUS-DP and USS................................ 9-114
9.5.4 Additionally available SIMATIC S7 software ................................................ 9-115
9.5.5 USS interface................................................................................................ 9-117
9.5.6 SIMOLINK..................................................................................................... 9-118
9.6 Configuration ................................................................................................ 9-120
9.6.1 Encoders for the position sensing system.................................................... 9-120
9.6.2 Requirements of position encoders for rotary axes...................................... 9-121
9.6.3 Brake controller............................................................................................. 9-122
9.7 Application examples.................................................................................... 9-123
9.7.1 Positioning of a linear axis via PROFIBUS................................................... 9-123
9.7.2 Positioning and synchronization with virtual master axis
(suitable for self-study) ................................................................................. 9-123
9.7.2.1 Task description............................................................................................ 9-123
9.7.2.2 Overview diagram......................................................................................... 9-124
9.7.2.3 Connection of digital inputs .......................................................................... 9-127
9.7.2.4 Connection and parameters of the position sensing system........................ 9-130
9.7.2.5 Velocity normalization P353 [20.5] and P205 [340.2]................................... 9-131
9.7.2.6 Machine data input U501 and U502 [804].................................................... 9-132
9.7.2.7 Connecting the technology to the speed and position controllers................ 9-134
9.7.2.8 Setting the parameters for the positioning modes........................................ 9-135
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