Help needed!!! PLEASE.

I have the GECKO G540 I also got my power supply From Keling (KL-350-48 48V/7.3A ) along with the E stop switch and 4 KL23H276-28-4B stepper motors, a bridge rectifier, filter capacitor, Now when it comes to the Resistor or Resistors from what I can tell pin 1 and 5 get a currant or just one resistor going from pin 1 to pin 5 ? I also see others talking about resistors for each motor, ok I am lost so if someone can add the missing info and maybe a picture or drawing on how this is to be.

Thank you for your time.

P.S. I do not know a thing about electronics!

Marty

The first page of the G540 manual says this:

Quote:

3) CURRENT SET RESISTORS: The current set resistor programs the axis drive current (0 to 3.5A) to match the rated phase current of the motor being used with the axis. Each axis requires a current set resistor. The resistor can be from 1/10 W to 1/2 W in size and 1% to 5% tolerance. The current set equals 1,000 Ohms per Amp of motor current. Example: A 3.3A per phase motor requires a 3.3K resistor, a 1.5A per phase motor requires a 1.5K resistor.

So you do need 1 resistor per axis (one inside each connector) as there is nothings that says you have to use the same motors for each axis. The resistor gets soldered across pins 1&5 inside the DB9 hood.

From Keling's website it looks like your motors are 2.8A per phase so you would need a 2.8K resistor. The closest standard resistor is a 2.7K.

Hope that helps.

_________________
Happy Machining!

Jeff Birt - Soigeneris.com
Proud Dealer of Taig, Precisebits, Gecko 540,
SmoothStepper and A2ZCNC products.

Ok Thanks Jeff - I knew I was missing something thanks for putting the peices back in place for me! I was looking at the G540 thinking pin 1 & 5 not in the DB9 Connector!

Your the best Bud! Thanks

Marty

Got to love this place!

Marty, here's a shot of how most of us have done it. I actually put a little bit of heat shring tubing over the resistor "legs" to keep it from hitting anything else.



Dave

mlp look here i got the resistors for my 2.8a motors at radioshack.

http://taigownersclub.forumotion.net/gecko-drives-f2/g540-deepgroove-conversion-t168.htm

" 4.7K + 10K + 22K
(connect these in parallel and you will get a hair under 2.8K Ohms)

Got it Thanks Len.

I have been following your build for some time now.

Thanks

Marty

By the way, you have some nice looking stuff on your site marty.

Thanks we have been closed for almost a year but will re-open in about 30 Days with a new complete lineup of stuff.

Marty