Boxford 190vmc upgrade

[swood1]

Hi all,

I have taken a photograph showing the board I have retained (mainly as it has the drives attached). With regards 0v, 12v, -12v, Ang, Dir, Ena. I believe these are all specific to the Spindle. My question is does anyone know if I can connect them directly to my BoB. I have worked out if Enable connector is 12v supply and when connected to the wire on the Lenze it starts the Spindle motor. I have also worked out that if you connect the 'dir' wire to 0v that also kicks the reversing relay.

Any help on how to wire to my BoB would be appreciated as struggling now. If you look in the photo XD, XC, ZD, ZC and CL5, CL6 are all the step, direction for the x, y, z axis which have all connected straight to my BoB.

PS. I have a PMDX-126 BoB and PMDX-107 Isolated Speed Control board although I am not 100% sure I need the 107 board.


Regards

Steven

[JAZZCNC]

Hi Steven,

You will need the 107 board has it provides the 0-10V analog voltage source. It also provides you with couple of Solid state relays to Control Run and Dir.
(thou strictly speaking these are not needed and you could just use normal outputs.)

I'm not expert on these Boxfords but I'm pretty sure that the +12v & -12V are not for the spindle speed unless the lenze needs analog + & - voltage for speed control and direction.? I think not thou.!!

Personally I think you would connect the Aout on the 107 to Ang and Agnd to 0V thou often the 0V usually as some ref to Analog Gnd like "Ana 0v".?
The Enable and Dir would just be controlled via the relays.

What Card is this your showing.?

[swood1]

What Card is this your showing.?

Hi JazzCNC,

It's showing the original Boxford card that has my drives attached. However I may move away from this when money permits but at the moment it would be nice to get the machine up and running even if it is slow. I was hoping I could use the machine to mill out the spokes on clock wheels as it takes me ages to cut and file them by hand.

Steve

[JAZZCNC]

It's showing the original Boxford card that has my drives attached.

Ok I didn't think that was the Lenze board and the reason why I asked.
Can you show the Lenze board and it's connections.

[swood1]

Hi attached are photos of a board attached to the Lenze with connections (which I assumed was doing the job similar to the 107 board ), I assume I should by pass this board and wire straight into the Lenze. I have also attached a photo showing the side of the Lenze with it's connections. The Lenze I have is the 534.

[JAZZCNC]

Hi attached are photos of a board attached to the Lenze with connections (which I assumed was doing the job similar to the 107 board ), I assume I should by pass this board and wire straight into the Lenze. I have also attached a photo showing the side of the Lenze with it's connections. The Lenze I have is the 534.

No if I remember correctly from helping Keith with his lathe this board is where you connect the 0-10V and Run signal from pmdx 107. Those 4 wires on the right are 0 & 10V and the + & - Enable for Run.

The Direction is changed by the Relay swaping the polarity of the DC spindle so you control this using the Dir relay on the 107.

Edit: Just be aware you will need to set Mach3 up so there is a pause for spindle to come to halt before reversing output is set other wise damage will be done.

[swood1]

Are you talking about the green board?

If so the connections on the right read look to read 10v, 5 (i assume volt), 0v, -10v. For some reason the machine was originally wired up using only the 5v and 0v connections. The bottom two wires are black/red for 240v ac. The Lenze seems to have a seperate 240v supply.