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Can I get absolute encoder position from my P Series Pulse/Indexer Drive?

Yes, if your controller programming is sophisticated enough to manipulate the data on the incremental encoder output port.  This is described in chapter 6.11 of the P Series Pulse/Indexer user guide.

1.  A digital input must be defined as type ABS_RQ   (absolute request).

2.  100msec after this input is asserted the drive will transmit the multi-turn data as incremental encoder counts on the A and B output channels (aka - 5 counts = 5 revolutions). 

3.  200msec after the multi-turn data starts the drive will then transmit the single-turn data as incremental encoder counts on the A and B output channels.  This data will be scaled by your drive configuration settings for the Encoder Output.

 

4.  Your controller must take the multi-turn data and multiply by the resolution (counts per turn) and then add the single turn data to get the overall absolute position.

5.  1200msec after the single turn data starts the drive will return to normal incremental encoder output on the A and B output channels.

 

glh   2/2016