CAM Profile not align with difference Master Axis Speed

[hsy]

Hi, 

I write a CAM function to sync 2 axis (Rotary & linear).

i am using a virtual servo as master, and 2 physical servos as slave. The problem i facing is, with the exact same CAM profile setting, when difference speed used will give difference result of movement.

Below is my setting,

Master axis     linear motor move

0-180degree   0-500mm

180-360          500-0

 

when running with slow speed, it move following the CAM profile setting, however, when moving in fast speed, the linear motor will only move halfway then start to moving back 0 already.

Has anyone encounter this issue before? is it i missed out some setting?

Thanks.