I am wiring a Laser Tree lt80-AA-Pro 24v laser with adapter board to a Mean Well RD 65B dual output power supply.24v and 5v.The goal is a standalone setup.The laser will run at 100% power ,1 min on/4 min off.The 24v will power the laser and fan.,and the 5v pwm will turn laser on/off.Will probably place a SPST switch on 5v pwm wire.I have experience with lasers,just not wiring power supplies.
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The above was about needing help to wire this.Thanks
To get you started, you might make a block diagram of what components you have. I doubt anything about the drive motors or any fans is needed.
This definately sounds like a DIY job. I do not have a CO2 machine, but electronics I know.
Thanks for replying Mike! It’s a 10w diode laser module.There are only 6 wiring connections.The only change is the 5v pwm signal wire.I pretty much know the wiring except that one.Plus,many different opinions made it confusing.
Does the laser have 2 or 3 wires? The cooling fan should be separate.
Actually the laser has 3 wires coming from the power supply to the laser.The laser has a built in cooling fan.
The red 24v wire powers both the laser and fan.
Hopefully they followed normal wire color assignments. Black is minus (-) and red is plus (+). The remaining color is is the PWM signal. All of these should have marked terminals on the controller board you connect to.
You said 10w laser and 24v supply. My 10w laser is a 12v unit, so be sure you are correct about the voltage.
Yes,the wires are red,black,yellow.Since this will be standalone laser,it will use an adapter board.Most connections go there.The wiring is standard,but the pwm signal wire is giving me fits.It will bypass the adapter board and runs a straight line from terminal 7 on power supply to a SPST switch and on to the pwm wire going to power supply.
Yeah,my laser runs on 24v.
Sorry,I made error.I meant that the 5v pwm wire goes to the laser.
This will only work if it has a common ground. You can just wire the PWM signal to a steady 5V line, so the laser will fire at 100%. But this will only work if the laser power supply and the PWM signal wire share the same ground line. Then that’s no issue at all.
Thanks for your reply! I am using mean well RD 65B power supply.7 terminals.#1 live#2 neutral #3 gnd #4 com #5 +24v #6 com #7 +5v.There is a adapter driver board too.I believe if you could walk me thru wiring #6,and especially #7,I think I would be ok.I know I will need a SPST switch to manually turn laser on/off.Thanks
Terminals 1/2/3: Your AC in; L-L, N-N, GND-GND.
Terminal 4/5: your 24v connection. 4 to laser GND, 5 to laser +24v.
Terminal 6/7: your 5v supply. 6 is GND, 7 is +5v.
here, it depends. If the laser PWM is active HIGH, when you connect the PWM to +5v it will fire 100% of the time. If it is active LOW, connecting it to +5v will fire 0% of the time. You also dont want it floating when in the inverse state, i.e. if it’s active high, you want it to be tied to GND when off, not just floating.
In your SPST switch solution, you’d wire laser PWM to C, PSU pin 7 to NC and PSU pin 6 to NO. In that way, the PWM is connected to high or GND at any given time, preventing floating.
Thanks! I understand wiring of terminals 1-5.Could you explain “C” “NC” and “NO” Not sure of their meaning.Very difficult to find any info on wiring this as a standalone laser.I have experience with lasers,but not wiring power supplies.
It’s the standard terminal names on a SPDT switch. C is common, NC is normally connected, NO is normally open. A SPST (single pole, single throw) switch won’t work, as it’s either connected or floating. Internally within a SPDT, you are either connecting the C terminal to NC when the switch is closed, or to the NO terminal when it is open.
Some of the controllers I’ve used in the past would not like one of outputs tied to Vcc. Most open collector devices you can get away with it, but if it’s actively driving something, not a good idea. You’d have to know how it’s built, circuitry wise.
This is the pwm output of my woodpecker grbl controller.
This one looks like d2 is blocking any kind of of external Vcc voltage.
I don’t know a lot of these smaller controllers like you do, so I’ll bow to your statement.
I don’t believe this to be correct. The pwm is connected all the time, so it should never be floating, if I’m reading this right.
There may be a better option if are using connections to devices.. using a table or headers and columns in the discourse editor.
> |Column 1 | Column 2 | Column 3 | Column 4|
> |--- | --- | --- | ---|
> |power supply pin | controller signal | | |
> |7 | 2 | | |
> |6 | 1 | | |
The above is text I enter to get the following.
| Column 1 | Column 2 | Column 3 | Column 4 |
|---|---|---|---|
| power supply pin | controller signal | ||
| 7 | 2 | ||
| 6 | 1 |
Different characters in the mask determine placement, such as centered, right or left.
You can also click on the + sign in the toolbar and select insert table. I haven’t really used it too much, once.
I meant the pwm from the laser (i.e. PWM in) when connected to the SPDT switch to either 5v or GND at any given switch position, so will not be floating in this configuration.
Normally,on the laser tree,which comes with an adapter driver board,the 2 pin pwm goes to input D on board.And,the 3 pin output goes to output A and then on to the 3pin connector on laser module.Not using a controller.I am getting a little confused.
Show a picture of the driver board. The labels should help selecting the correct pins.