Aerotech UNIDEX 600 Series, User Manual

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U600 User’s Guide Setup Wizard
Version 1.4
Aerotech, Inc.
12-19
1. The Hall effect inputs, D/A, limits, and the secondary feedback channel must be
assigned to the same channel number (which must be channels 1-8 and the option to use
velocity limits must be selected). For example, if the velocity encoder uses channel 2,
then the D/A should also use channel 2. You must specify the Number of Lines \
Electrical Cycle relative to the secondary feedback device, even though the value is
entered on the screen for the primary feedback device.
2. The primary feedback can be connected to any available encoder channel and this
connection contains only the encoder and marker information.
In this configuration all of the I/O is coming back on the same physical channel for both
the drive and encoder interface and as a result the status word will display the hall effect
feedback correctly and you will not have spurious drive fault errors.
12.4.7. Configuring Axis Calibration Data
This screen, within the Axis Configuration Wizard, allows ASCII axis calibration files to
be specified for the axis. 2D calibration files are specified on the main setup page of the
MMI600. Axis calibration files contain a look-up table of absolute positions and
correction values at those absolute positions. Multiple calibration files (up to 8) may be
simultaneously active per axis.
Figure 12-11. The Axis Configuration Wizard – Set Axis Cal. File Screen
Selecting the ‘Add’ button will allow an axis calibration file to be specified for the axis.
This will cause a dialog box to be displayed allowing a file to be specified. The path and
file name may be manually entered, or you may select the ‘…’ (Browse) button to find the
desired file.
The Master Axis specifies the axis whose absolute positions are used as the index
into the look-up table to produce the correction values for this axis. The master axis
is normally the current axis and will be the default master axis number. Another axis
may be used as the master axis, such as for orthogonality correction.