Wiring Stepper Motors to drivers

[xyzeugene]

Hello - I just bought my stepper/Driver/Power Package specically:

CNC 4 Axis Package with 425 oz-in motor and KL-4030 Bipolar
Driver with 36V/9.6A Power Supply

Can I connect a RJ45 cable from the stepper to the driver?

Would be nice since there are so much accessories for RJ45
Thanks
Eugene

[Jesse B]

Originally Posted by xyzeugene Hello - I just bought my stepper/Driver/Power Package specically: CNC 4 Axis Package with 425 oz-in motor and KL-4030 Bipolar Driver with 36V/9.6A Power Supply Can I connect a RJ45 cable from the stepper to the driver? Would be nice since there are so much accessories for RJ45 Thanks Eugene

CAT-X Network cables are only 24awg, which can handle a maximum of 3.5A. You'll need to use something with a larger gauge wire.

[markcomp77]

CAT-X Network cables are only 24awg, which can handle a maximum of 3.5A. You'll need to use something with a larger gauge wire.

yes, for one wires limit is 3,5A for awg24
http://www.powerstream.com/Wire_Size.htm

but, if we connect parallel 2 wires -->> max current rise up to 7A
we need 4 wires for 2 phase bipolar stepper... but ethernet rj45 cable have 8 wires
it is good idea to use twisted pair as waveguide for powering phase of stepper (2 phase)

[RomanLini]

That's single core wire isn't it? You can't bend it more than a handful of times before it snaps.

[Jesse B]

Originally Posted by markcomp77 yes, for one wires limit is 3,5A for awg24 http://www.powerstream.com/Wire_Size.htm but, if we connect parallel 2 wires -->> max current rise up to 7A we need 4 wires for 2 phase bipolar stepper... but ethernet rj45 cable have 8 wires it is good idea to use twisted pair as waveguide for powering phase of stepper (2 phase)

Ahh, good point. I was under the impression it only had 6 for some ridiculous reason

[markcomp77]

maybe ethernet cable is good to connect motors because of current..
but, I like use higher diameter shielded cables...

0.5mm x4 - 4A motors
1mm (1.5mm) x4 - 8A motors

and... strong plug is important too

this is photo of control unit (3 x 7,8A 80V etc)



black plugs - 10A current possible... shielded cables 4x1mm
silver socket - easy up to 4A (6A)



smaller unit



cables for 4.2A motors (silver plugs)