Technology Option F01 08.2012
6SE7087-6QX70 (Version AN) Siemens AG
9-164 Compendium Motion Control SIMOVERT MASTERDRIVES
9.8.13 Machine data input MD1...MD50
Commissioning step:
Enter the machine data:
Machine data MD1 to MD50 (parameters U501.01 to U501.50) are
centralized settings required for positioning and synchronization from
the perspective of the working machine and the mechanical
transmission elements. The machine data are only active if they have
been transferred with U502 = 2 when the drive is stationary (see [804]).
The machine data are listed in abbreviated format in [804].
In the "Machine data of the technology" chapter of the Function
Description in manual /1/ you will find a detailed description of all
machine data. Please note that the decimal points specified in
some of the machine data there are not entered in parameters
U501.01...50, e.g. max. traversing velocity MD23 = 10000
LU/min → Input on MASTERDRIVES MC: U501.23 = 10, in OP
screen 10.000.
If you use the positioning functions, the following machine data are
relevant:
Machine Data Overview for Positioning
MD1, MD2, MD11 Encoder and axis type
MD3...MD7
Configuration of homing (only relevant for incremental
encoders); see [821] and "Positioning block" section
MD12...MD17
Software limit switches (for linear axis) in addition to
following error and "in position" monitoring
MD18, MD19,
MD23
Velocity, acceleration and deceleration ramps for
position control modes (see above for MD23)
MD41...MD43
Acceleration and deceleration ramps for speed control
modes (control and homing)
MD21, MD29...37,
MD46, MD48
Special machine data for roll feed only
MD20, MD24,
MD25, MD44
Special machine data for automatic mode only
MD38...MD40 Backlash compensation
MD45, MD47 Configuration of special digital I/Os for positioning
MD49, MD50 Weighting of velocity and acceleration precontrol
MD10 Offset value for absolute encoder
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