90zyt - 155 -12 - MCP4 - 60:1

Hi guys,
Im trying to get an idea on pricing for these in the US. Anyone know the most cost effective distributor in the US? Any idea on cost?

90zyt - 155 -12 - MCP4 - 60:1

Using wiper motors and being about 240 they are getting a little slow as I pack it on.

I am specifically looking for the 90zyt because of the feedback on the motor and the strength.

Anybody have a good PID starting point for these motors? The ones used for small wipers aint it lol

P : 0.4 to 0.5
I : 0
D : 0.6 to 0.8

0.45 / 0 / 0.7 seems to be not so bad.

Wow really so a 0.4 and so on....Im used to doing lie a 2/2

change the decimal figures instead of the fractions.
Guide to setting PID and motor settings on JRKS

max accell and max duty at 500, max duty while feedback out of range 500

current calibration 130

max current 0 (unlimited)

PID period 20ms

Integral limit 10000

With PID, Leave I alone and at 0

Using the slider bar in INPUT tab of utility only, no simtools, this is how its done.

Set P, I , D to 0 in the decimals, apply settings, now start with P only and work up in increments of 0.1 , aplly settings, go to INPUT tab, tick the box "automatically set target", click run motor and either slide the bar fast from side to side or use the home/end buttons to do max, min motor throwing.

Work up in 0.1, so next would be 0.2, then 0.3, etc. Until you find when you move the slider bar, the motor twitches like a bugger. Once you get that, halve that figure you have in P. So if its say 0.7 , you would put in 0.35.

Now dont worry if when you click apply settings, that the number is not exactly what you typed in.

Once the P number is halved like I said, go to D and work up in increments of 0.1 like you did with P. Apply settings, go to INPUT tab, and run motor and move the slider back and forth fast until the motor lever stops overshooting its stop point and starts to be very solid in stopping.

So for example, you may have a final figures of P 0.3672 , and D of 0.8231 for example. Do not use those figures, I am using an example of what may be the final numbers.

I have found when I do put in say 0.8, apply settings, it gives me 0.79999 or something like that.

Ok so that would account for the top number? the bottom? or both?

Im trying to get close so that I can use the graphing to judge my exactness

I dont have a JRK connected, but I circled the number areas that need to be changed

OHHH! duh....ok, you know I never tried to make the adjustment that way. I'll give that a whack tonight. Thanks bro.

@Erwan960 those setting worked great! Man these motors are so much better then my old wipers. I can feel the little movements so much better. All around a better experience and much neater setup on my rig. Having the rod go through so I can mount the pot on one side is fantastic. No more lever to the POT, straight on now.