CNC newbie electronics query

**Skydeals** · 02-07-2014

Sorry what do you mean by all the screens and how do I connect all the screens from the control box end to one point. Do I have to use a certain cable?

**Clive S** · 02-07-2014

Originally Posted by Skydeals

Sorry what do you mean by all the screens and how do I connect all the screens from the control box end to one point. Do I have to use a certain cable?

I think it might be better if you state exactly what you are trying to achieve. The certain type of cable is CY 4 core you can Google it . What are you using the power supply for? Pictures!! ..Clive

**Skydeals** · 04-07-2014

Originally Posted by Clive S

I think it might be better if you state exactly what you are trying to achieve. The certain type of cable is CY 4 core you can Google it . What are you using the power supply for? Pictures!! ..Clive

Ok you''ll have to help me out here. I appreciate your time. Ive not got pictures so ive added links to the parts. Im using the power supply to power 3 drivers , the
link for the drivers is (http://www.leadshine.com/UploadFile/Down/DM442m.pdf). For the connection from power supply to driver, ill be using the wires from maplin (see link below)
http://www.maplin.co.uk/p/twin-core-...er-metre-xs71n

For the drivers to motors ill be using the cy 4 cable from zapp automation (http://www.zappautomation.co.uk/elec...-cy-cable.html)

Im not sure of the wire to use between my ZP5A- int BOB and driver, and whether this has to be grounded in between the connections.

I havent bought the cy 4 cable yet but i was wondering if all of them come with a wire which is used as ground as well as the 4 wires for driver to motor connection. If so do i connect all the ground wires at the driver end (between driver and motor) to the star point. Am i alright right in the choice of

**Skydeals** · 04-07-2014

Originally Posted by Clive S

I think it might be better if you state exactly what you are trying to achieve. The certain type of cable is CY 4 core you can Google it . What are you using the power supply for? Pictures!! ..Clive

Ok you''ll have to help me out here. I appreciate your time. Ive not got pictures so ive added links to the parts. Im using the power supply to power 3 drivers , the
link for the drivers is (http://www.leadshine.com/UploadFile/Down/DM442m.pdf). For the connection from power supplu to driver, ill be using the wires from maplin (see link below)
http://www.maplin.co.uk/p/twin-core-...er-metre-xs71n

For the drivers to motors ill be using the cy 4 cable from zapp automation (http://www.zappautomation.co.uk/elec...-cy-cable.html)

Im not sure of the wire to use between my ZP5A- int BOB and driver, and whether this has to be grounded in between the connections.

I havent bought the cy 4 cable yet but i was wondering if all of them come with a wire which is used as ground as well as the 4 wires for driver to motor connection. If so do i connect all the ground wires at the driver end (between driver and motor) to the star point. Am i alright right in the choice of wires chosen and could you advise me on wire between BOB and driver.
Thank you very much!

**Clive S** · 04-07-2014

Skydeals What steppers are you using?
""I havent bought the cy 4 cable yet but i was wondering if all of them come with a wire which is used as ground as well as the 4 wires for driver to motor connection. If so do i connect all the ground wires at the driver end (between driver and motor) to the star point. Am i alright right in the choice of wires chosen and could you advise me on wire between BOB and driver.""
You need 4 core cy cable I use 1mm but some use 1.5mm the screens (braid) of the cy cable are all connected together at the star point at the motor end the cy cable screen is just insulated ( not connected).
I use cat 5 cable between the BOB and driver (twisted pairs) ..Clive

**Skydeals** · 04-07-2014

Originally Posted by Clive S

Skydeals What steppers are you using?
""I havent bought the cy 4 cable yet but i was wondering if all of them come with a wire which is used as ground as well as the 4 wires for driver to motor connection. If so do i connect all the ground wires at the driver end (between driver and motor) to the star point. Am i alright right in the choice of wires chosen and could you advise me on wire between BOB and driver.""
You need 4 core cy cable I use 1mm but some use 1.5mm the screens (braid) of the cy cable are all connected together at the star point at the motor end the cy cable screen is just insulated ( not connected).
I use cat 5 cable between the BOB and driver (twisted pairs) ..Clive

Thanks!
Im using Nema 23 (sy60sth88-300bf) motors (link is http://www.zappautomation.co.uk/elec...per-motor.html).

So from what I gather, Ill connect all the screens to the star point from the motor end. Should I use any specific wire for connecting screens to star point?

**Clive S** · 05-07-2014

"Im using Nema 23 (sy60sth88-300bf) motors (link is http://www.zappautomation.co.uk/elec...per-motor.html).

So from what I gather, Ill connect all the screens to the star point from the motor end. Should I use any specific wire for connecting screens to star point?" no just as short as possible. ..Clive

**irving2008** · 05-07-2014

Originally Posted by Skydeals

...
So from what I gather, Ill connect all the screens to the star point from the motor end. Should I use any specific wire for connecting screens to star point?

No. The screens are connected to the star point at the driver end. The correct way to do this is to separate out the braid and solder onto it some hook up wire (use 7/0.2 or 16/0.2) then fold it back and put 1.5cm of heatshrink over it to 'seal' the end. At the motor end cut the braid off and again 'seal' the end with heatshrink. Keep the unshielded cables as short as you can without straining anything.