Originally Posted by
LeeWay
Peter, here is an image of the DC-06. I think I may know why this wasn't working for me. It may be that 5 VDC connection. I don't think I wired the ground pin on the incoming to the 5 volt -, but to a PP ground pin. However the power light does work as does a relay light. I may
Hi Lee,
Thanks for the image. From the photo, you have the rev:3 board. The only thing missing is the optional DC/DC converter. I'll put one in the mail.
Once you receive it you need to plug it into the empty IC socket, and move the JP2 jumper from the AV+ position to the DC/DC position. You can then revove the red wire from the DC-06 AV+ terminal to the speed controller.
Then, remove the 9-way pluggable connector from the DC-06 board for testing and set-up. With the DC-06 turned on and being driven at full speed from Mach, you will be able to measure about 12V between the AGnd and Vout pins on the DC-06. You can then adjust the VR1 trimpot to reduce the max voltage out to 2.8V.
One thing to check is that the Input logic polarity jumper is in the correct position. From the photo, you have it set to positive logic. That is, a logic 1 from Mach will turn on the relays, and povide positve edge logic to the DC-06. Make sure that Mach is setup the same way. If you have Mach configured to use -Ve logic, then change the JP1 jumper on the DC-06.
Cheers,
Peter.
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