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HOME
The drive is equipped with a capability for six different HOME types:
TYPE
0
OFFSET (HOME TO MARK+ OFFSET)
1
FEED ON (HOME TO SENSOR)
2
FEED ON/OFFSET (HOME TO SENSOR THEN MARK+ OFFSET)
3
FEED ON/OFF (HOME TO SENSOR THEN OFF SENSOR)
4
FEED ON/OFF/OFFSET (HOME TO SENSOR THEN OFF SENSOR
T OFFSET)
5
FEED ON/OFF/ON (HOME TO SENSOR THEN OFF SENSOR THEN ON
SENSOR)
Home cycles are used in applications that require a starting (HOME) position to locate tooling,
fixtures, carriages, etc. that are required as a prerequisite to initiation of other cycles. Two
separate inputs can be programmed to accomplish HOME cycles, HOME SENSOR and HOME
INITIATE. The integration of motion relative to these inputs is what determines any specific
HOME cycle. Any of the HOME cycles may be set up as you program the HOME function with
PCX.
An example of a HOME cycle could be demonstrated with a ball screw or rack and pinion drive
that converts rotary motion output into linear motion.
Figure 68
Example of Home Cycle
This particular application would utilize most of the programming features in the HOME setup.
In this application, we want to position the carriage to the physical location of the external
HOME sensor and then to an offset.
This is a type 4 HOME, FEED ON/OFF/OFFSET (HOME TO SENSOR THEN OFF SENSOR
THEN OFFSET).
Notice that an additional feature in programming is the HOME lock ON/OFF. If the HOME
lock is ON, then upon powering up, the only request for motion that will be accepted is one for a
HOME cycle.
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