Wow Im impressed, I was given a couple of these, both have red lights on, both were running large fans which exploded taking the PSU with them. When I looked inside and saw that control board and without a circuit I put it down. Now I have the Schematics for the RSP-1000 Im going to give it a go, thank you for sharing your experience.
Fantastic fix - congrats, and thanks for sharing! Just scored three used 48V models hooked up in either in series or parallel, and they will most likely have issues. I don't have your smarts to find issues so quickly but your video will still help. Would like to parallel them to get more amps so murphy's law says they may be hooked in series(dam that murphy.
FYI I don't remember if the V- terminal is bonded to chassis ground ; if so, they cannot be wired in series. The datasheet doesn't say it can be done, so assume it can't, unless you can thoroughly review the schematics to ensure it can work. For operation in parallel, the RSP series isn't specifically designed for load sharing (some more sophisticated models are), so YMMV. Good luck !
Did you succeed? I was told by Meanwell Tech Support. in no uncertain terms, that the RSP-750-15 can not be used in parallel. "No, the RSP-750 cannot be wired in parallel to achieve greater current output. Models that support parallel operation will have instructions for operating in that mode on their spec sheet. Only our models with the “current sharing” function are designed to be operated in parallel. It is necessary to avoid the load becoming unbalanced between the power supplies. The RSP-750 does not have this function." My question about current programming function being sufficient to protect from load imbalance received a simple not supported answer.
@@flintsmith4771 No luck yet, have not had time to do much troubleshooting. All three definitely have issues (the worst - water damage). Big filter caps on all three are blown and found a couple other bad components. Goal now is to just get two running and use other for parts - just wish I had more time and EE knowledge.
Hi, I'm having the same problem right now 😩 A resistor has come loose! I don't know its value! The model is rsp-1600-24, can you help me find it? Where can I find it?😢🙏🏻
Hi tanx a lot for your good description.i have a question a bout ZTE zxd030 s480. I have 290volte on Filter capacitors.i have no vcc voltage for 2pcs01.no short dieod on auxiliary supply.i have 12v for vcc ice2a2 and 1.4 v feedback.i don't know why soft start not working.i check isenc is connected to ground.what I should check? Pls help me
From the datasheet : "built-in fan with fan speed control"; from the RSP-1000 schematics it's modulated directly by the sensed output current, but the fan is always on even with the "REMOTE ON" shorting plug removed.
@@fenugrec5697 Thank you for your quick response! I received a new one (RSP750-48) today and can now say that it’s true 😕 To me it’s way to loud even with no load connected. Do you have an idea how to reduce fan speed on the controller/ board? I could also change to Noctua fans which are quieter… 🤷🏼♂️
@@Chris-sc3rf The smaller the fan, the stronger the correlation between "noise" and "airflow"; you can't win. Of course you could tweak the fan control, or re-engineer one like I did for a GPC-3020 ( th-cam.com/video/3FC4myguLyw/w-d-xo.html ), but when providing any kind of power, your PSU will generate heat and need sufficient airflow. You might rewire the REMOTE_ON switch to also disable the fan, but that's not great: if you run full tilt and then turn off - lots of residual heat, not good for reliability.
@@fenugrec5697 Yes that’s true. I can’t half the airflow without impacting the cooling. The load I will connect is dynamic with a low duty cycle 30-50% (SSB power amp) so I hope it will work… I will check with an electronic load if the airflow is sufficient. What I really don’t like is the fact that the fans are controlled by sensed current and not by the actual system temperature 🙄
Hello I need your help. On the RSP-750-24. To wire a simple 2-wire on/off switch on pin13 and 14. Do you by any chance know how to wire a simple 2-wire on of switch for the RSP-1500-24?
Manual is not very clear on this issue. Another thing the manual does not have is how to actually adjust the current. In this situation again, he RSP-750-24 is clear on how to do that adjustment but the 1500 doesn't even mention it. It only shows how to do a voltage adjustment.
@@KeithOlbermannn "Remote ON-OFF is activated by the configuration with respect to CN1,CN2 and CN3 as shown in the following diagram.", page 5... Can't comment on current adjustment, not familiar with that
@@fenugrec5697 come on bro, I read that in the manual. You know as well as i do that that is mumbo jumbo to layman like me. If you understand it, can you put it in layman's terms?
@@KeithOlbermannn There is a wiring diagram showing exactly how to rig a switch for remote on/off. If that is "mumbo jumbo", I don't think I can explain it any better and I don't think I should - sorry to have to say this, but it tells me maybe you are not fully aware of the risks involved in playing with a 1.5kW power supply capable of causing serious damage to you and whatever you're working on. Or maybe you are; I don't know, I'm just some random stranger.
Hi. You may know reason to my issue. Its sdr 480-24v and after supplying 230v i get nil at dc output and i get dc-ok led pulsating as well as clicking relay. What can it be??
Can you help me with my meanwell? The company is useless they dont honor warranties or anything. No dc output voltage. No schematic. Nothing. Typical chinese company
Wow Im impressed, I was given a couple of these, both have red lights on, both were running large fans which exploded taking the PSU with them. When I looked inside and saw that control board and without a circuit I put it down. Now I have the Schematics for the RSP-1000 Im going to give it a go, thank you for sharing your experience.
Fantastic fix - congrats, and thanks for sharing! Just scored three used 48V models hooked up in either in series or parallel, and they will most likely have issues. I don't have your smarts to find issues so quickly but your video will still help. Would like to parallel them to get more amps so murphy's law says they may be hooked in series(dam that murphy.
FYI I don't remember if the V- terminal is bonded to chassis ground ; if so, they cannot be wired in series. The datasheet doesn't say it can be done, so assume it can't, unless you can thoroughly review the schematics to ensure it can work. For operation in parallel, the RSP series isn't specifically designed for load sharing (some more sophisticated models are), so YMMV. Good luck !
Did you succeed? I was told by Meanwell Tech Support. in no uncertain terms, that the RSP-750-15 can not be used in parallel.
"No, the RSP-750 cannot be wired in parallel to achieve greater current output. Models that support parallel operation will have instructions for operating in that mode on their spec sheet. Only our models with the “current sharing” function are designed to be operated in parallel. It is necessary to avoid the load becoming unbalanced between the power supplies. The RSP-750 does not have this function."
My question about current programming function being sufficient to protect from load imbalance received a simple not supported answer.
@@flintsmith4771 No luck yet, have not had time to do much troubleshooting. All three definitely have issues (the worst - water damage). Big filter caps on all three are blown and found a couple other bad components. Goal now is to just get two running and use other for parts - just wish I had more time and EE knowledge.
Hi, I'm having the same problem right now 😩 A resistor has come loose! I don't know its value! The model is rsp-1600-24, can you help me find it? Where can I find it?😢🙏🏻
Thanks a lot. Please say why there is the capacitor C22 between Line and FG.
Hi tanx a lot for your good description.i have a question a bout ZTE zxd030 s480.
I have 290volte on Filter capacitors.i have no vcc voltage for 2pcs01.no short dieod on auxiliary supply.i have 12v for vcc ice2a2 and 1.4 v feedback.i don't know why soft start not working.i check isenc is connected to ground.what I should check? Pls help me
Nice video and repair👍🏻
One question… are the fans permanently running or only when switching on the psu?
Are they temperature controlled?
From the datasheet : "built-in fan with fan speed control"; from the RSP-1000 schematics it's modulated directly by the sensed output current, but the fan is always on even with the "REMOTE ON" shorting plug removed.
@@fenugrec5697
Thank you for your quick response!
I received a new one (RSP750-48) today and can now say that it’s true 😕
To me it’s way to loud even with no load connected. Do you have an idea how to reduce fan speed on the controller/ board? I could also change to Noctua
fans which are quieter… 🤷🏼♂️
@@Chris-sc3rf The smaller the fan, the stronger the correlation between "noise" and "airflow"; you can't win. Of course you could tweak the fan control, or re-engineer one like I did for a GPC-3020 ( th-cam.com/video/3FC4myguLyw/w-d-xo.html ), but when providing any kind of power, your PSU will generate heat and need sufficient airflow. You might rewire the REMOTE_ON switch to also disable the fan, but that's not great: if you run full tilt and then turn off - lots of residual heat, not good for reliability.
@@fenugrec5697
Yes that’s true. I can’t half the airflow without impacting the cooling. The load I will connect is dynamic with a low duty cycle 30-50% (SSB power amp) so I hope it will work…
I will check with an electronic load if the airflow is sufficient.
What I really don’t like is the fact that the fans are controlled by sensed current and not by the actual system temperature 🙄
Hello
How can I have the schematic diagram?
Hello I need your help. On the RSP-750-24. To wire a simple 2-wire on/off switch on pin13 and 14. Do you by any chance know how to wire a simple 2-wire on of switch for the RSP-1500-24?
That should already be explained in the rsp1500 manual, no ?
Manual is not very clear on this issue. Another thing the manual does not have is how to actually adjust the current. In this situation again, he RSP-750-24 is clear on how to do that adjustment but the 1500 doesn't even mention it. It only shows how to do a voltage adjustment.
@@KeithOlbermannn "Remote ON-OFF is activated by the configuration with respect to CN1,CN2 and CN3 as shown in the following diagram.", page 5... Can't comment on current adjustment, not familiar with that
@@fenugrec5697 come on bro, I read that in the manual. You know as well as i do that that is mumbo jumbo to layman like me. If you understand it, can you put it in layman's terms?
@@KeithOlbermannn There is a wiring diagram showing exactly how to rig a switch for remote on/off. If that is "mumbo jumbo", I don't think I can explain it any better and I don't think I should - sorry to have to say this, but it tells me maybe you are not fully aware of the risks involved in playing with a 1.5kW power supply capable of causing serious damage to you and whatever you're working on. Or maybe you are; I don't know, I'm just some random stranger.
very good
How can I download the circuit map of this power supply?
Thank You
Hi.
You may know reason to my issue.
Its sdr 480-24v and after supplying 230v i get nil at dc output and i get dc-ok led pulsating as well as clicking relay. What can it be??
i don't know, it's a different PSU. Do visual inspection, look at auxiliary supplies during poweron, etc.
Hello , thanks for the movie, do you have your schematic to share or the RSP2000-48 I do work on? Thanks in advance, Luc
Unfortunately not, I only have the RSP1000 schems that I showed in the video.
The RSP series have built in current sharing and designed to be ganged together.
Indeed. That's why the voltage and current feedback loops are fairly complex.
Hello. Can you please tell me the brand and model of your multimeter probes? Thanks
Sure, they are standard Probemaster 8000 series
What are you powering with these?
Do you have circuit diagram of RSP-3000-48 ? I have searched in Google but i did not find
I do not, sorry
Wish I had your drain to understand these pcb! I been studying them myself for 5 years now and I'm just dumb! Lol.
Can you help me with my meanwell? The company is useless they dont honor warranties or anything. No dc output voltage. No schematic. Nothing. Typical chinese company
good teacher, this is a great video,
Can you send the circuit diagram for RSP-1000ABCD-RA.sch? For repair of RSP-1000.
google "rsp-1000 schematics", should be easy to find