[RMiroC]

Hi,

I have a 3 axis CNC with 4 total sensors, the Z has it`s own sensor, the X has it`s own sensor & the Y shares 2 sensors. I`m trying to figure out the wiring into the MX3660 as well as the external 12v DC plug.
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In the Leadshine mx3660 manual shows the sensors go to:Input 1,2 & 3.

Example for machine with 4 sensors:

Input 1 (X axis)1 black wire
Ground: Blue wire
Input 2 (Y axis) both black wires together
Ground: Blue wire
Input 3 (Z axis) 1 black wire
Ground: Blue wire

But there is no info showing the other +12v wire from the limit sensor. There is also no other info about what to do with the external 12v plugs (-) wire.

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I have heard on another forum that you only need to connect the black wire from the sensors to the 3 separate Inputs, and nothing goes into the MX3660 Ground
and then wire the 4 Brown wires to the external 12v + wire and the 4 Blue wires from the sensor goes to the external 12v- wire.

Or does something else need to me connected to the Ground for the sensors to work?

Is there anyone who can help me with this?

Thanks

[boydage]

It sounds like they are proximity sensors if you put a picture up someone will be able to help you. NPN I have attached the wiring diagram for. Common ground and 12v supply from your board, black to input pins. When activated the sensor will provide a ground to the input pin. I also dont know how your setup is wired, but you may need to put a resistor into the circuit, the proximity sensors often max out at 300ma. What this means is they will work for a short time if at all before not working.

[RMiroC]

Yes, they are definitely proximity sensors.

Thanks for your response, it is helpful, but I still don`t understand how the wiring goes as far as the GRND connections go with the MX3660, I think I need a more layman's instructions.

[RMiroC]

Hi,

Thank you for your help.

Yes, I have NPN NO proximity sensors on my CNC.

I understand in the schematic that the Black goes to the "Input" ( 1,2,3) of the MX3660.

But does this mean the "Ground" from the MX3660 goes out to connect to the (+) Brown line?