Boxford 190vmc upgrade

[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.

[JAZZCNC]

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.

Yes the green board.

It's not unusual for some speed controlers to use 0-5V and the Pmdx 107 has this feature if required. However It's more common to use 0-10V.
The Lenze controller can obviously use either.

Agnd on pmdx 107 goes to 0v and Aout to 10V. By default the 107 outputs 0-10v so If you want to use 5V the set the Dip switches on the 107 board to output 5v.

If you want to test this with crude setup then put a 1.5Vdc battery between 0v and 10v. (Or 0-5v spindle will just spin faster thats all)
Then find the enable pins and put a NO switch on them to toggle ON/OFF.
(Warning don't do any of this wiring live has the speed controller could be at mains potential)