TIOK said:When you insert the connector, pin "6" closes to the negative output, and the unit starts.Does the contact "6" control output enable/disable?
If you don't need it, you can cut off the track coming from the contact, in the place indicated by the arrow on my photo. And start the unit as before, closing contact 10 on a common wire. And you don't need to glue anything.
These units are designed for round-the-clock operation, without shutting down. The battery is discharged, not the capacitors, but the dc/dc converter on the control board. The voltage from the output is supplied to it in parallel with the standby voltage through a diode. It is possible to remove the diode, but you are unlikely to be able to do it.I am charging a server rack battery that has pre-charge output so the issue now is that battery appears to repeatedly pre-charge/discharge the R4850g2 output capacitors at low current (~0.1A) when the R4850g2 output is physically connected but not powered even with contact "10" disconnected. This means the battery will slowly get drained when R4850g2 is physically connected which is not acceptable. It's a very strange behavior.
rigmo said:3. The module resets and restarts.
If the power module is shut down in case of failure, in any mode, press and hold the button for more than 6 seconds, the red/blue light flashes at the same time, and the power module resets and restarts.
4. Under voltage to turn off the power, (this function can be selected to turn off or on)
If the power supply encounters a fault or has a heavy load and the output voltage drops to less than 36V, the power output is turned off for 5 seconds. After the problem is removed, the power module is powered off and restarted, or the button is held down for more than 6 seconds.
5. The battery is fully delayed to turn off the power module output (you can choose to turn off this function, no delay shutdown)
When the battery is fully charged, the current starts when the current drops to 0.3A, and the power module output is turned off after the time is reached. (Delay time is 1 minute to 240 minutes optional) After the power module is powered off, it can be restarted, or the button can be reset for more than 6 seconds.
dr_lulz said:in case anyone cares, this is how my PSU looks now:
i soldered 8mm bolts for battery and attached screw terminals for 2.5mm^2 230v cables.
Hopefully enough for 70A for several hours
TIOK said:These units are designed for round-the-clock operation, without shutting down. The battery is discharged, not the capacitors, but the dc/dc converter on the control board. The voltage from the output is supplied to it in parallel with the standby voltage through a diode. It is possible to remove the diode, but you are unlikely to be able to do it.I am charging a server rack battery that has pre-charge output so the issue now is that battery appears to repeatedly pre-charge/discharge the R4850g2 output capacitors at low current (~0.1A) when the R4850g2 output is physically connected but not powered even with contact "10" disconnected. This means the battery will slowly get drained when R4850g2 is physically connected which is not acceptable. It's a very strange behavior.
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hwckent said:Mr.: Huawei R24050G1 plus Bluetooth control module is more suitable for your needs.celioregoli said:has anyone understand out how to raise the maximum voltage? I need 75v
this is my electric 106 project.
https://photos.app.goo.gl/7Ph1hQFYyCydSPNZ9
I want to make a three-phase charger to connect to the 22kw columns. I want to use 6 huawei rectifier. I would like to change them to 75v to put 3 in series and make 225v. And three more in parallel to have double the current. When I find a 11kw column with orion2 bms with the canbus it lowers the current. I just have to understand the modification to get 75v.
Or I could connect 6 , 41v rectifier in series and do the 246v and with some diodes in series I lower the voltage due to the drop of 0.7v for each diode, there are 12, I put 24. what do you recommend?
IMG_20211106_004135.jpg
Huawei R24050G1 is a high-efficiency, high-power density AC-DC rectifier module that supports three-phase voltage input from 260V AC to 530V AC, a rated output of 270V DC, and an output power of 15kW. The rectifier module adopts an isolated CAN communication interface, and the communication with the monitoring module adopts the CAN communication protocol. Through the monitoring module, the rectifier module can realize functions such as voltage regulation, current limiting, and single-module switching.
? Efficiency ≥ 97%
? Input voltage range 260~530Vac
? Operating temperature range -10~65°C
? Total harmonic distortion (THD) ≤ 5%
? Support hot swap function
? Fully digital control
? Support CAN bus communication function
? Support voltage regulation, current limiting, current sharing functions
? Meet RoHS requirements
? Obtained TUV, CE and Thiel certification
Product category R24050G1
Basic index
Size 206mm (width), 470mm (depth), 83mm (height)
Weight ≤12kg
Cooling mode: built-in fan, wind out after forward wind
Input characteristics
Input voltage 260~530 Vac
Rated voltage 380Vac / 480Vac
Input frequency 40~70Hz, rated value: 50Hz/60Hz
Rated input current ≤33A
Power factor ≥0.99 (25°C, full load)
THD ≤ 5% (50%-100% load)
Output characteristics
Output voltage 200 – 290 Vdc, rated value: 270 Vdc
Output Power
15kW(304 Vac~530Vac); 7.5~15kW(260Vac~304Vac linear derating)
Environmental indicators
Working temperature -10°C~65°C
Storage temperature -40°C~75°C (without packaging)
Relative humidity 5%~95% (non-condensing)
Altitude change
≤4000m (the high temperature derating under the operating environment conditions when 3000~4000m is used, every 200m increase will reduce 1°C)
Protection characteristics
Input overvoltage protection 530~550 Vac
Input undervoltage protection ≤ 260 Vac
Output overvoltage protection
297.5-302.5 Vac (1. When the internal fault is overvoltage, the module is locked; 2. When the external output voltage is within the protection point, the module works normally)
Output short circuit protection
Long-term short-circuit, automatic recovery after the short-circuit disappears; after the short-circuit> 10s, the module performs short-circuit protection in a period of 16s
Over temperature protection ≥ 65°C start-up protection, ≤ 60°C self-recovery
Reliability index
MTBF 450,000 hours (T=40°C, rated input, full load output)
Noise index
≤ 55dB (T=25°C, phase voltage Vin=220 Vac or 230 Vac, full load output)
dominik h said:On the Eltek Flatpack the commnds are the same between 24V 48V 120V 220V and 380VDC versions. They only have different multiplication factors 10 or 100 in the dezimal to hex conversion.
Megmeet also uses the same commands for the 24V 48V and 60/72V Modell and they use the same pinout and connectors like Huawei.
I would just try it with the huawei , perhaps with different multiplication factors for voltage and current.
Veriv uses floating point to hex conversion.
The Chinese remove this diode when they redo the blocks at 90-120 Volts, and the block works without problems. There are 4 revisions of the R4850G2 blocks and the schematics are slightly different. In the photo on the board, in series with the diode, there is a resistance of 2R2. You can delete it.That makes sense ... thanks! For clarity, is the diode you circled D310 on the schematic? The diode doesn't look too hard to remove with a hot air gun assuming the module is not too hard to access. However, would removing the diode cause DC-DC converter output disruption in some situations?
I am very interested in the results when your R24050G2 arrives. I am using many R4850G2's for 48V batteries and for a High Voltage project I am building a 27kW 3 x 3 stack. First 3 x R4850G2 serial in a 1U rack powered by 3-phase 230/380VAC to charge a single 42S Li-NCM battery upto 175.5V. And second 3 x those 42S battery/charger combo's to get a total string of 126S and 526.5V.celioregoli said:Thanks so much for the advice. I read it after a year. I just bought it for 300usd on taobao. shipping excluded, shipping is done by cssbuy.com
You seem very well informed about these Huawai units, any chance you can help us find some official can-bus protocol information? That would be much appreciated.TIOK said:These units are designed for round-the-clock operation, without shutting down. The battery is discharged, not the capacitors, but the dc/dc converter on the control board. The voltage from the output is supplied to it in parallel with the standby voltage through a diode. It is possible to remove the diode, but you are unlikely to be able to do it.I am charging a server rack battery that has pre-charge output so the issue now is that battery appears to repeatedly pre-charge/discharge the R4850g2 output capacitors at low current (~0.1A) when the R4850g2 output is physically connected but not powered even with contact "10" disconnected. This means the battery will slowly get drained when R4850g2 is physically connected which is not acceptable. It's a very strange behavior.
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I have no information on can.You seem very well informed about these Huawai units, any chance you can help us find some official can-bus protocol information? That would be much appreciated.
TIOK said:These units are designed for round-the-clock operation, without shutting down. The battery is discharged, not the capacitors, but the dc/dc converter on the control board. The voltage from the output is supplied to it in parallel with the standby voltage through a diode. It is possible to remove the diode, but you are unlikely to be able to do it.I am charging a server rack battery that has pre-charge output so the issue now is that battery appears to repeatedly pre-charge/discharge the R4850g2 output capacitors at low current (~0.1A) when the R4850g2 output is physically connected but not powered even with contact "10" disconnected. This means the battery will slowly get drained when R4850g2 is physically connected which is not acceptable. It's a very strange behavior.
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The CAN bus is just two wires, CAN - H and CAN - L. No more wires are needed.Do you happen to know where the can-bus transceiver is located as well? And what is true about can-bus ground, _on the other end of the (can-)bus_, to be required to be connected to the PSU's DC- (or DC+ or GND for that matter, just not to float nor any GND elsewhere)
the R24050G1 has arrived, I was able to buy it directly on taobao and have it sent to me by cssbuy. with 300 euros on taobao and 150 euros on cssbuy with DHL it arrived in 1 week. Now I have a 15Kw 200-270vdc charger. It works perfectly with the commands of the little brother r4850g2, the 220v voltage takes it correctly and obviously at 50v give error. In the past I had thought of putting the 4850 outputs in series, but I think this is the best solution for high voltages. I found these R75020G1 R50030G1 R33640G1 R24050G1, the r24050 comes up to 270vdc. Then this did a great job based on botox esp32, made linux commands.I am very interested in the results when your R24050G2 arrives. I am using many R4850G2's for 48V batteries and for a High Voltage project I am building a 27kW 3 x 3 stack. First 3 x R4850G2 serial in a 1U rack powered by 3-phase 230/380VAC to charge a single 42S Li-NCM battery upto 175.5V. And second 3 x those 42S battery/charger combo's to get a total string of 126S and 526.5V.
Thanks.Very nice, but something is mixed.
Output power is higher than Input power