needle position synchronizer setup explained

[Mrrattle]

if you have the typical amazon/vevor china made brushless servo motor controller and you have installed the typical needle position synchronizer you may have been fighting with trying to get it setup. there a several youtube videos on how to install it but nothing that i could find on how to actually set it up. so here is what i figured out by trial and error and it works great.

1-instal the sensor so the light triggers at top dead center (most videos show this)is pretty straight forward. just make sure you get top dead center set before proceeding.

2-go into setting P-04 and set it to ON

3-go into setting  P-13 and set it to  2: external single signal

4-this is the bit that was not clear setting P-10, this is what you use to set the down stop position, higher numbers advance the needle.

       4a--on controller press the P button to select needle down position

       4b- run a couple stitches, let off pedal, if your needle stops too soon, enter into P-10 and increase the number (press P and S at same time), press plus button to get to setting 10, press S to enter setting mode,  up or down arrow to make adjustment, then press S to save   

       4c- run a couple stitches, let off pedal, if your needle stops too soon, enter into P-10 again  and increase the number, repeat until you get your needle far enough on the upstroke to make sure hook has grabbed the thread.

once you have this set, when you have selected NEEDLE DOWN as indicated by the lower led on the P button lit, your needle will stop in the down position you set it to. from here a tap of the heel on the pedal will raise your needle to the up position.

if you have selected NEEDLE UP as indicated by the upper led on the P button lit, your needle will stop in the up position and the heel tap will do nothing

setting this up gives you stitch by stitch control with just a tap of the pedal

 

[1hp]

thank you for posting this info. put a NPS on my Cobra 4, seems to be working! only had to mod the bent rod and follow your lead.

[kgg]

On 2/10/2024 at 4:17 AM, Mrrattle said:

so here is what i figured out by trial and error and it works great.

Nice explanation.

kgg

[CdK]

Good information to have available. Thank you for sharing.