RepRap Configuration - 5V Relay

Phaedrux

@SANJR said in RepRap Configuration - 5V Relay:

Is the name "5V PWM" mentioned is correct?

No. It would be out9.

https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mainboard_6HC_Hardware_Overview#pin-names

SANJR

Would the pin name be "out9" (or) "out9,laser,vfd"?
Because the out9 refers to the two pin while the pin trying to use is a 4 pin which is next to the out9.

Phaedrux

Let's start from the top. Which board are you using exactly?

SANJR

@Phaedrux Thanks

I will be using an Duet 3 Mainboard 6HC for building an DIY Research Project. I am planning to install and 5V Relay module for Switching ON and OFF a torch. Planning to control this Relay Module by 4 Pin Laser/VFD/Servo which is between the out9 and Temp3 pins.

Wiring of the same is shown below for reference

Certain set G-Codes would be required to control this operation. I am unable to find a example or reference for this purpose. Requesting support from members..........

Phaedrux

LASER/VFD v1.0 and later boards only. This provides 5V power and a 5V level signal for a TTL-compatible input to a laser controller, a PWM-to-0 to 10V converter (for variable-frequency drives), or a servo. The control signal for this output is shared with OUT9, so don't use OUT9 if you use this connector.

OUT 7, OUT 8, OUT 9 These are intended for fans. Maximum recommended current 2.5A each when supplied by VIN.
Note: These outputs are protected by a flyback diode connected to V_OUT_LC_2. Do not mix loads connected to V_OUT_LC_2 with the jumper set to 12V and loads connected to V_FUSED on the same bank.

OUT7-OUT9_SelectV The positive supply to the OUT 7, OUT 8 and OUT 9 connectors is the centre pin of the 3-pin jumper block labeled OUT7-OUT9_SelectV. A jumper in the top position will power them from the fused VIN supply. Alternatively you can connect a 3-terminal buck regulator to the 3-pin jumper block to supply the required voltage to the centre pin.

The pin name is still out9, but you can also use laser, or VFD.

In your case I'm not sure if it makes sense to use VFD or laser. What mode of operation will you be running in normally? If you just need to switch the relay, out9 seems to make sense to me.

Perhaps @DC42 has better advice though.

SANJR

@Phaedrux Thanks for Your Feedback.

I have got some clarity the name of the pin is out9. I would be doing a simple ON & OFF Operation.

The Relay module is a simple 5V relay. This is my first time doing an DIY project so wanted it to as simple as it could be. That's the main reason of using an "5V PWM".

If I could use any other with a simple plug and play similar to that of an stepper motor would be of a great help. However in certain cases need to customize or change as required.

Request the users to support for a simple hardware wiring and to validate the G-Code Macro as per the trailing.

Phaedrux

Have you reviewed the M950 and M42 commands? Do you require more examples?

SANJR

@Phaedrux

Yes. I have gone through commands M950 and M42. Tried to write this ON & OFF program as shown below

M950 P3 C“out9“ ; allocate GPIO port 3 to OUT_9 (fan output),
M42 P3 S1 ; set 100% PWM on GPIO port 3

In the M950 line G-Code have removed the the Q parameter since the speed is not going to be varied.

Would the above program suffice the Relay Module ON & OFF? Requesting your feedback.

Phaedrux

That looks ok, except the quotes around out9 don't look correct.

C“out9“ versus C"out9"

SANJR

@Phaedrux Thanks for the feedback would be changing the quotes.