Yaskawa SMCGUI-THK1 - Manual (Page 5)

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THK VLA Indexer
Introduction
The THK VLA Indexer allows a user to “program” motion on a
VLA slide without ever learning or knowing a programming
language.
The user simply answers a series of questions about the slide
being used, the load connected to it, and what will cause it to
energize and home. Then the user creates one or more sequences
that the slide is required to perform using pre-defined events like
“Move Start”. Once all of the parameters are entered into the
events chosen by the user, a program can be generated and sent to
the controller by compiling and downloading.
The program created and downloaded will begin running
immediately. It will set all necessary parameters, wait for the
condition chosen to energize the servomotor, and then enter
either the manual or automatic mode. The manual or automatic
mode is dictated by the state of input 8. If input 8 is high or off
the program enters Manual mode, if it is low or on, Auto mode is
run; but only after the servo is enabled the first time.
Manual mode allows the user to enable and disable the servo (if
the choice to energize the servo was by input or variable), and
once the servo is enabled, to jog forward or reverse.
Auto mode will home the servo once after a power-up when the
condition to home is true, and then run sequences when their
individual start conditions are true. If there is more than one
sequence defined and the condition to start each sequence is true,
then the sequences will be run in order one after the other, and
will continue to run until the start condition is false. Remember,
in order to enter the Auto mode, the servo must be energized.