renovation cnc : communication MESA 7i96 - spindle

Hello,

I am updating an old  cnc machine to use it with linux cnc. For this I want to use a mesa 7i96 board.
My spindle is currently connected by a Commander Sk which is to act as a speed controller.
Then, for communication with the computer, the Commander is connected to a relay card by five wires in a cable (the cable is connected to the card via an RS232 connector). The mesa card will take the place of this card.

My problem is this: I have 5 wires for Commander-mesa communication and I don't understand how to connect them to the Mesa card. If I understand correctly, it's on the encoder connectors, with one on 5v and another on GND.
Can you help me with the others, please?

For your information, here are the commander's connections :
- 24Vdc output100mA
- Digital I/O or pulse output 10KHz or PWM output
- Digital output
- 0V commun
- Analog input 0-10V

 

Do you have link to the manual for the spindle driver?

Concerning the commander Sk I have also that : nicontrols.com/pub/media/pdfs/ctskbrochure.pdf

So, if I understand right I've chosen the wrong mesa card?

For me, the commander has just the e-pot role that you write (and a coolant control but it's different)
In addition, looking at the cable used, I also think that the electronic system already has a moldbus between the current card and the VFD (Sk commander).

Here are some pictures of the connections.
On the commander they are T1, T2, B2, B3 and B5
On the card it's the Analog connector

 

tommylight

I bought the card last Monday. Since I started, I use the following manual: www.mesanet.com/pdf/parallel/7i96sman.pdf
Yes, I saw the spindle connectors on TB2 line.
But my spindle voltage (220V star) is higher than what the card can give. Or can these connectors communicate with the commander ?
 andypughBut if I use the modbus protocol with the RS485 connector (so an ethernet cable), my computer will no longer be able to communicate with the card ?
Maybe, I can use the 25pin connector for that ? Sorry for my ignorance, I started in this field

This would be my guess, assuming B4 is programmed for FWD
and B5 is programmed fro REV:

7I96S TB2.22 --> VFD T1 0V
7I96S TB2.23 --> VFD T2 A1
7I96S TB2.24 --> VFD T3 +10V

7I96S TB3.22 --> VFD B2 +24V
7I96S TB3.21 --> VFD B4 FWD?
7I96S TB3.24 --> VFD B2 +24V
7I96S TB3.23 --> VFD B5 REV?

 

with the 7i96S you would usually use the electronic potentiometer on TB2 (pins 22,23,24) to the spindle drive analog 0..10V input (T1,T2,T3)