7i96S card arrived what setup is recomended

Please help me with the wiring of a single CL57T-V4.1 closed loop driver to Mesa 7i96S

( I am able to get PnCconf to see the Mesa 7i96S board. )

This is the manual of the CL57T driver: www.omc-stepperonline.com/download/CL57T_V4.0.pdf

The printed manual comes with the driver is version CL57T-V4.1, but I can't see any difference.

Based on the manuals for the driver and 7i96S, I understand that:

● Mesa 7i96S STEP pin is the Driver PUL pin. E.g., for a 1.8° step motor, 200 PULSES is a full STEP.

● Mesa 7i96S DIR pin is the Driver DIR pin. I.e., Clockwise or Counter Clockwise.

● The CL57T_V4.x driver requires input voltage 18-50VDC (recommended 24-48VDC). Peak Current: Minimum 2.4 (RMS 2A), typical 5.6 (RMS 4A), max 7.0 (RMS 5A). So it is not a "higher than normal input current requirements" as per Mesa 7i96S manual page 12.

● The CL57T_V4.x driver supports both differential inputs and single-ended inputs. ( I'll wire it to use differential inputs, since it offers better performance. )

And so I am going to attempt this:



1. Is the wiring correct please?

2. The driver manual, page 7, states:

[
The 1-bit selector is located on the top (S3 in figure 2), used to configure the voltage of control signals. For the safety of optically coupled, the factory setting is 24V, which no need to connect 2K resistors, making it easier to use. When the voltage of the control signal is 5V, the S3 must be set to 5V, otherwise, the motor won't work.
]

To use the driver using Rasberry Pi 4 as a controller, I have to set the driver S3 to 5V ( I have documented in this video: )

Using it with 7i96S, should I set it to 5V or 24V, please?

3. Do we just leave the driver ENA, ALM and BRK un-used, please?

Thank you.

7I96S    CL57
+5V     PUL+
STEP-   PUL-
+5V     DIR+
DIR-     DIR-

SW3 Set for 5V mode

The ENA, ALM and BRK can be left unconnected

PCW wrote:

7I96S    CL57
+5V     PUL+
STEP-   PUL-
+5V     DIR+
DIR-     DIR-

SW3 Set for 5V mode

The ENA, ALM and BRK can be left unconnected
 

Thank you PWC for your helps. I appreciate it.

I have read page 12 of the 7I96S manual several times, but I don't think I fully understand it ( this is all new for me ):

[
...
Some drives with higher than normal input current requirements benefit from single ended wiring as this cuts the output resistance of the 7I96S drivers in half. In this case, suggested wiring is PUL+, DIR+ to 5VP then PUL- to STEP- and DIR- to DIR-
]

The wiring you have corrected matches the above manual instructions. Might I have the following questions, please:

1. This CL57T drive has "higher than normal input current requirements"?

2. This is a single ended wiring?

3. To connect CL57T's PUL+ and DIR+ to 7I96S' +5V, can I join the two wires from PUL+ and DIR+ and screw the single end to 7I96S' +5V?



Thank you.

1.
Yes (this appllies to most step motor drives with opto-coupler inputs)
2.
Yes.
3.
Yes, you can make a little loop at the drive.
(if you are good with a wire-stripper you can do this with a single piece of wire)