Input wiring

[Mircea3M]

Hi guys!

I'm new to Motoman robots and to this forum and I would appreciate some  to start on .

I work on a SDA10D robot and a DX100 controller.

My first program will be to use an external input signal in order to move forward in  the robot program.

Before start working on, I took a look over the I/O unit from the cabinet, its a JZNC-YIU02-E.
I search for more information about this unit on the cd that we got with the robot.
I have attached some pictures about what information I found regarding this unit and its connector in the Instructions_EuropeanStandard.pdf.

My understanding on this diagram is as follows( please correct me if I'm wrong ):

      1. the external signal should be connected to B1...B4 or A1...A4
      2. B1 is connected to the resistor from the opto-coupler.
      3. this should lit the led and produce on the other side 24V and max 8mA.

What rely confused me in the diagram is when I saw that B1 should be connected to ground through a NO switch.
What's unclear to me its how I connect my external signal to the connector?
How do I turn on the optocoupler since everything will be connected to ground?

Thanks for your time and patience.

[Fabian Munoz]

Hi Mircea3M

Welcome to the robot forum



"What rely confused me in the diagram is when I saw that B1 should be connected to ground through a NO switch."

That's correct and that's all you have to do to answer your questions
Get a piece of wire and jumped from B7 to B1,, you will see IN17 ON.

If you are using a 3 wire device,   1 wire to B1,   2 wire to B7 (-)     3 wire to B19 (+)

[Mircea3M]

Hello Fabian Munoz,

thanks for your quick reply.
In this case is simpler than I though.

Would a current limiting resistor be a good idea in series with the wire connected between B1 and B7?

Thanks!

[Fabian Munoz]

I never used one in many years of wiring and never had problems BUT that doesn't mean it's not a bad idea.