I recently ordered an Ortur 10W laser module to replace the 5.5W that came with the OLM2 Pro (S1) I bought three years ago. All the listings I looked at showed this OUC universal adapter:
Sending it back is not really an option (I ordered it from AliExpress), so I guess my only option is to make a male to male (or is it female to female?) adapter cable and hope the pinout is the same. Anyone else run into this situation? And if so, what did you do? BTW, when I emailed them about the issue, they sent a picture of the V1.0 (first picture) and told me to plug it in where the blue circle is. (SMH)
I assume the concern is for the “IN” port but please correct me if I’m wrong.
Are the pin terminals the same for the original cable as well as the terminal current connected to IN in the diagram? If so, you may be able to remove the pins from the block and connect directly.
Confirm pin assignments by testing continuity in the wires from end to end on the IN and OUT ports.
Or check for markings on the port if you remove the cable. You could potentially open the adapter if that’s easy enough as well.
Correct. I came with two short adapter cables, one labeled “normal” and the other “OLMP2/S2”. The out cable goes directly to the laser. The S1 OEM cable has the 3-pin 2.54 JST type connector that plugged into the 5.5W laser module. That was supposed to go onto the corresponding input on the V1.0 board. Ortur is now sending out their 10W lasers with a V2.0 universal adapter, which isn’t. The “IN” connector has a 2 row 4 pin at one end, and as you can see, a 3 pin JST on the other, and it’s the same “sex” as the one that’s intended to go there. I bought some 3 pin JST connectors…
…and the plan is to make a sex change cable. I took the cover off the OUC but it’s a multi-layer board with very small connectors, so I couldn’t tell much. I feel that if I can, with a fair degree of certainty, identify ground and +24V, then the only one left, on the 3 pin connector, should be PWM. If I keep the plugs in the same orientation, I should be ok. My concern is that there is some digital circuitry on the board, so I’m not sure if I’ll get any continuity between IN and OUT. And since they are now using a round 5 pin connector on the laser module, and everything is enclosed, I don’t know how the internals are wired.
The circuitery is mostly a diode with some logic to understand what voltage is being sent through and what direction.
Being on S1 you must make sure your firmware is on latest this does matter.
Now with OUC V2 you should still able to use your S1 wiring with the cable addapters they sent you. could you post a full picture of the little adapters. They should go out in the 3 pin JST that connects to the laser → plug into the in:
So your adapter must be 3 pin JST female to 6 pin PHB Male. If so, no splicing or cutting is required
Also make sure to set it to AUTO so fan dont always gets going
Hi Gil, my OLM2 Pro is an S1 in name only as I am using a Tim Rothman control board. The 10W kit came with a V2.0 OUC and two adapter cables labeled: “normal” with an 8 pin (OUC end) to 6 pin female (controller end) connectors, and an “OLM2P/S2” with an 8 pin to 3 pin female JST connector. The cable coming from my controller (top left) to the 5.5W laser module also has a 3-pin female JST connector. As all the connectors have female ends, I can’t plug them together, and the 3 pin will not plug into the 8 pin V2.0 OUC universal adapter. Had they sent the V1.0 (first picture) I would already be up and running. In the upper left-hand corner of picture below you can see the 3 pin JST (plus ground lug) and the two adapter cables. I’m hoping to find a way forward, or I’ve just wasted a lot of money (I sure wish they’d sent the V1.0 board).
Gil, to provide you with an update; I was able to construct a short male-to-male adapter cable, as you can see in the picture, all the 3-pin JST plugs were female. Once the adapter was made, I connected all the cables and plugged in power. I set power at .5% (I was using .35 on the 5.5W laser) and when I clicked “FIRE” I saw this horrible blob of a dot (the 5.5W produced a nice pinpoint dot). Long story short, after using the built in focus gauge I was able to cut through some scrap 3mm basswood at 170mm/m @ 27% Pwr 1 pass, versus 170mm/m @ 48% Pwr from the 5.5W (I ran a check before I made the swap). The kerf looks very similar. The big problem is that the fan won’t shut off once a job has started. I can cycle power at the V2.0 OUC (unplug and plug it back in) but I don’t want too keep having to do that. You mentioned setting it to AUTO, but I’m probably not going to be able to do that with my Tim Rothman B-N-B 3 controller (or maybe I can, I don’t know). Any ideas? happy with it so far, except for the fan.
Hi,
Hope you don’t mind me jumping in on this but I have a similar issue and one of you may be able to help
I have an LU3-40A laser with OUC 2.0 adapter board, power connection is ok, connection to laser ok via the yellow connection
It’s the 8 pin connection I’m struggling with I only have an 8 pin to 8 pin cable, I only need to connect 2 cables, the PWM signal and GND.
Looks like only 5 of the 8 pins are used but does anyone know which pins I need to use
If I had the 8 pin to 3 pin cable OLM2P/S2 I could work it out but don’t have that and can’t find out where to get one
Any help appreciated
[quote=“Design, post:9, topic:128297, full:true”]
Hi,
Hope you don’t mind me jumping in on this but I have a similar issue and one of you may be able to help
I have an LU3-40A laser with OUC 2.0 adapter board, power connection is ok, connection to laser ok via the yellow connection
It’s the 8 pin connection I’m struggling with I only have an 8 pin to 8 pin cable, I only need to connect 2 cables, the PWM signal and GND.
Looks like only 5 of the 8 pins are used but does anyone know which pins I need to use
If I had the 8 pin to 3 pin cable OLM2P/S2 I could work it out but don’t have that and can’t find out where to get one
Any help appreciated
Please forgive my crude drawing. On the 8-pin connector I received from Ortur, if you are looking at the end of the connector (I’m going to call it female as the connector that mates with it has exposed pins) the 24V is on the first two pins, GND is on the second two and then PWM (the last 3 had no pins). If you look at the 6-pin connector on the OUC (second picture, circled in blue) they have done the same thing. Because of the smaller gauge wires, they double them up. Understand that this is the OUC.2 that I received from Ortur. If you have an Ohm meter, I would confirm that before I start hooking anything up. My laser module has the 6-pin cable although the 8-pin was also an option. Hope this helps.
Richard, as I mentioned in the DM, here is the pinout for the 8-pin PCB connector included with the OUC V.2, that came with the Ortur 10W laser module I bought from Ortur. YMMV.
