Renishaw HS20 Installation Manual page 55

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Stage 2 - Switching machine control to HS20 feedback
Having successfully completed the pre-integration testing the feedback system is ready to be
integrated into the machine position control loop.
The integration is completed in the following steps:
1. Ensure machine feed rate is turned down to 1% on all axes
2. Complete the integration by converting all axes concerned directly to Laser Feedback.
3. Move all axes and ensure that machine responds accordingly.
Prior to the integration of the HS20 laser head, the machine will have been running on its primary
feedback source (i.e. motor encoders or tape scale).
The process of integrating the laser scale into the machine's feedback loop is the point in the
installation where there is the most potential to cause problems with the machine if the operations
are or have not been carried-out correctly. Therefore it is essential that great care is taken when
integrating, and that the installer understands fully the operation of both the laser head, and the
machine control.
WARNING: It should also be noted that during the integration process certain safety features may
not be fully operational, hence the machine should only be operated by personnel who are aware of
this, and able to take appropriate action in the event of a problem. During the integration process the
machine should be kept clear of personnel until all functions have been enabled and tested.
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