Problems with spindle encoding

[netboss]

I am setting up a quadrature spindle encoder for my lathe. Analysis with my scope indicates the encoder is working. Also, the Kmotion Digital I/O window shows bits 4 and 5 toggling as the spindle is rotated. However, GetSpindleRPS returns 0.0000 when spindle is rotating about 1000rpm

I have attached my init routine and my .h file with contains the definition of the spindles.

Gary

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[TomKerekes]

Hi Gary,

Bits 4 and 5 are connected to Encoder Counter #2. See the table for KFLOP JP7 here:
KFLOP Connectors

It looks like you are using KFLOP Axis channels #0 #2 and #3. I'm not sure why you skipped #1 but that is ok if you wish.

It looks like you plan to use KFLOP Axis #3 to monitor the encoder input. That is also ok, but it is configured to use Encoder Counter #4 which is not what you wired your encoder to. Change:

ch3->InputChan0=4;
to
ch3->InputChan0=2;

After doing so (and executing the program) then the Axis Screen should display your encoder Position for Axis #3

You might read this article:
Channels Channels Channels - Dynomotion

Regards