Emerson/Vertiv R48-series CAN programming?

jollmo

1 mW
Joined
Apr 14, 2021
Messages
15
Hmm, did you remove those screws connecting the chassis to GND? (locatet at the bottom, back side) that could solve your problems when putting them in series......
 

dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
All the rectifiers are not very precise in measuring current. I know from other companies that the values vary by plus or minus 1,5A.
Voltage reading is more accurate. It is around -0,1 to +0,3V to the voltage setting.
I programmed nearly 120 rectifiers from Eltek , Huawei , Vertiv and Megmeet in the last two years and checked their voltages unloaded and also the current settings with load applied. The best thing was all of them always reached the claimed output power.
 
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dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
I had the same series connected voltage problem during my first tries with the Eltek 48V 3kW Frontend Version, but only under full load. If one of them drops under 30V they reduce the output current to 50%, and at this point the voltage drops and on the other the voltage rises
 
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dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
The vertiv r48-2000e3 ,and the others to, reduce the output current when the voltage drops.
At 10V the r48-2000e3 drops down to 20A. It was set to full current.
 

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dominik h

10 kW
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Jul 24, 2021
Messages
525
Sorry , some of the pics are not good anymore, since my old SD-Card died
 

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qwertyvitas

1 µW
Joined
Jun 25, 2023
Messages
1
Location
Stavropol
Hello! I have Emerson R48-1000 and mcp2515 CAN from aliexpress.
When I connect my rectifier with arduino, I see this:
15:37:43.619 -> RX ID: 0x0707F803 Length: 8 Data: 0x04 0xF0 0x01 0x5A 0x00 0x00 0x00 0x00 Z
15:37:46.258 -> RX ID: 0x0707F803 Length: 8 Data: 0x02 0xF0 0x00 0x00 0x00 0x00 0x00 0x00
15:37:46.755 -> RX ID: 0x0707F803 Length: 8 Data: 0x03 0xF0 0x10 0x5A 0xCB 0xA7 0x05 0xB9 Z
15:37:49.265 -> RX ID: 0x0707F803 Length: 8 Data: 0x02 0xF0 0x00 0x00 0x00 0x00 0x00 0x00
15:37:52.308 -> RX ID: 0x0707F803 Length: 8 Data: 0x02 0xF0 0x00 0x00 0x00 0x00 0x00 0x00
15:37:52.705 -> RX ID: 0x0707F803 Length: 8 Data: 0x01 0xF0 0x00 0x00 0x3A 0x80 0x00 0x00 :
15:38:00.345 -> TX ID: 0x0607FF83 Length: 8 Data: 0x03 0xF0 0x00 0x21 0x42 0x48 0x00 0x00 !BH
15:38:00.345 -> RX ID: 0x0707F803 Length: 8 Data: 0x01 0xF0 0x00 0x00 0x3A 0x80 0x00 0x00 :
15:38:01.404 -> RX ID: 0x0707F803 Length: 8 Data: 0x02 0xF0 0x00 0x00 0x3A 0x80 0x00 0x00 :
15:38:10.539 -> RX ID: 0x0707F803 Length: 8 Data: 0x02 0xF0 0x00 0x00 0x00 0x00 0x00 0x00
TX ID: 0x0607FF83 Length: 8 Data: 0x03 0xF0 0x00 0x21 0x42 0x48 0x00 0x00 - excellent works and set 50.0V on 30 sec
But I can not decipher the RX ID commands that the rectifier sends.
What is encrypted here 0x02 0xF0 0x00 0x00 0x3A 0x80 0x00 0x00 for example?
 

thnorthstar

10 µW
Joined
May 18, 2023
Messages
5
Location
turkey
Hello! I have Emerson R48-1000 and mcp2515 CAN from aliexpress.
When I connect my rectifier with arduino, I see this:

TX ID: 0x0607FF83 Length: 8 Data: 0x03 0xF0 0x00 0x21 0x42 0x48 0x00 0x00 - excellent works and set 50.0V on 30 sec
But I can not decipher the RX ID commands that the rectifier sends.
What is encrypted here 0x02 0xF0 0x00 0x00 0x3A 0x80 0x00 0x00 for example?
If it is not a problem for you, can you share the codes and documents you made with Arduino?
 

AshevtsovS

1 µW
Joined
Oct 24, 2023
Messages
2
Location
Dnipro
Hi!
How to correctly set the power supply unit to a constant voltage? According to the instructions, it was possible to set the voltage value to 58.8V, the unit outputs this voltage, but after rebooting it resets to 53.5
 

dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
CAN-ID 06 07 FF 83
1. Data 03 F0 00 21 42 50 00 00 online-voltage value gets lost after 30 seconds , just to see the changes
2. Data 03 F0 00 24 42 50 00 00 offline voltage Setting Voltage permanent to 52,5V
this works between 42 24 00 00 min 41V and 42 6A 00 00 max 58,5V
You can also only send the offline value command, but then you have to wait 30 seconds until the rectifier changes the voltages.

If you set the offline voltage and it looses this setting, either you set a to high value or the rectifier is not ok
 

AshevtsovS

1 µW
Joined
Oct 24, 2023
Messages
2
Location
Dnipro
Everything is correct, I set a constant voltage of 58.5V using the command:
"CAN-ID: 06 07 FF 83
Data: 03 F0 00 24 42 6А 00 00 ". After 30s, the rectifier changed the voltage. But after restarting, it reset the value to 53.5V again.
It turned out that 58.5V was a lot for him.
I set 58.4 - and he remembered it even after rebooting.
Thank you!
 

dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
OK that is new for me,
could be some sort of overvoltage protection.
 
Joined
Jul 21, 2023
Messages
2
Location
Ha Noi
Everything is correct, I set a constant voltage of 58.5V using the command:
"CAN-ID: 06 07 FF 83
Data: 03 F0 00 24 42 6А 00 00 ". After 30s, the rectifier changed the voltage. But after restarting, it reset the value to 53.5V again.
It turned out that 58.5V was a lot for him.
I set 58.4 - and he remembered it even after rebooting.
Thank you!
You use Data: 03 F0 00 21 42 6А 00 00 ( Equalize Charge Voltage command ) will set DCout = 58.5 after restarting ;and Data: 03 F0 00 24 42 6А 00 00 (default voltage command ) will set DCout = 58.5 when running offline
 

Yodany

1 µW
Joined
Jun 25, 2023
Messages
4
Location
Romania
Hi there,
Can you please a can programing interface and program for this Vertiv? I suspect we need something to match the baud rate... any advice would be appreciated.

Did anybody create something for raspberrypi?

Thank you.
 

dominik h

10 kW
Joined
Jul 24, 2021
Messages
525
Frame ID 06080783 or 0607FF83 speed 125kB/s
Sorry no Arduino , Rapsberry or ESP program from my side,I use a USB to CAN converter and my laptop
Baud rate see above and you need to set extended frame , at least in my tool.
I use the canalyst 2 for programming.
 
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