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  1. T

    Emerson/Vertiv R48-series CAN programming?

    I did send one offline message to one (each) psu using esp32->mcp2515 and nothing happens, it remained outputting 51.8V. I'll buy USB-CAN converter to test it, or it is work too to config the psu using USB-RS485 converter?
  2. T

    Emerson/Vertiv R48-series CAN programming?

    I keep the relays in the end. When its dead, mayble I'll switch to ssr. About the set offline voltage failure, my best guest is the eeprom in the psu that used to store the offline value already wear out, so its unable to save the new default voltage permanently.
  3. T

    Emerson/Vertiv R48-series CAN programming?

    Trying using your esp32 code here to set to 42V, works like charm. But when I turn off the esp32, in about 40 seconds, the r48-3000e3 revert back to 51.8V (no load, just test using voltmeter). The set voltage offline should set the default voltage permanently right? So I can't use relay because...
  4. T

    Emerson/Vertiv R48-series CAN programming?

    Not yet Om. just got the last piece of the puzzle, a step down converter from 84V to 12V to power Voltmeter+100A Amperemeter (as I want to measure the output V and I directly, and worry about which ground point should I take, so I plant to power the Voltmeter/Amperemeter directly from 84V output...
  5. T

    Emerson/Vertiv R48-series CAN programming?

    I just bought 2 r48-3000e3 and plan to set the each voltage 42V 20A, connected in series to make 84V 20A charger for my Polytron Fox R. Did You had set the current limit trough CAN BUS?
  6. T

    ULtra Compact 1800W charger + Eltek programming

    I want output 84V from two eltek PSU. Since minimum output voltage is 43V, can i use high power diode to reduce the output voltage, lets say from 86V to 84V? it is safe? Thank You.
  7. T

    Eaton APR48-3G 1.8kW Light Compact Charger PSU

    You need install the driver from the downloaded zip file. Mine don't work on windows 11 (I have newer libusb from zadig, can't downgrade the driver), but work on windows 10, using manual driver update in device manager.
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    Eaton APR48-3G 1.8kW Light Compact Charger PSU

    Hi, I can connect usbasp and read eeprom data successfully with 3.3V usbasp voltage with both led remain off. It is safe to use 5V usbasp (jumper on) to connect to this board? Thank You
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