HeliosII-485MCP off grid solar inverter
inverter no vac output and the error code is DCBUS-L.
1.customer connected on the output other voltage engine generstor
As illustrated in above image, the place marked by red box is the actual location of IPM module.
The four points within the red ellipse are the points we need to measure.
Measurement procedures: measure IPM module-using multimeter,
and discharge white capacitance at first.
1.Use black probe to connect 0 point, and use red probe to connect 1, 2, 3 point respectively.
The value of measurement should be more than 500 normally.
2. Change black probe and red probe connection points.
Use red probe to connect 0 point, and connect 1, 2, 3 point
using black probe respectively. The value should be 1 under
normal condition as shown below, in another words,
exceeding multimeter’s measurement range.
If check all display 0V, means AC output part Mosfet(IPM Module) damaged.
2. change the Mosfet
The cooling fan rotates slowly when only connected with mains supply, but rotates normally after being connected with mains supply and turning its switch on.
The switch has not been controlled entirely by the control part of the cooling fan. There is something wrong with U3 optocoupler and N6 triode.
1. Remove all wire from BP series with charge, include battery and AC output.
2. Clear surface dust.
3. Uninstall screws from Front and rear panels.
4. Open the top cover.
5. Find the damaged parts.
6. Change U3, N6 parts.
7. Close the top cover and run it.
change the parameter for Muse series MPPT solar charge controller by PC software( widnows 10)
Over voltage value
1.Different batteries have different over-voltage protection values. If the over-voltage values to high ,
than the battery will broken, so must select the correct battery type.
2. The Muse series MPPT solar charge controller are damaged
If theMuse series MPPT solar charge controller have damage, need remove the controller asap, because the PV voltage will direct to
battery, is very high voltage, than battery will damage.
Accessories required: tablet computer *1, RJ45 communication line *1, USB to RJ45*1
RJ45 communication line USB to RJ45
RJ45 communication line connected to the RJ45 interface RJ45 line connected to 485 interface of the Muse Mppt solar charge controller
The USB port connects to the computer(windows 10)
Open the software "CNBOU" app
Click "Open file" and select "cnbou_mbt.xls"
Select Port COM
Click "Write Target" to bring up the bar code dialog box and click skip
Popup please replace the target, operation completed, restart the controller
Now the Muse series MPPT solar charge controller finish the parameter reset.
Chinese and English interface comparison
DC or Battery input Reverse solution for Pure sine wave inverter B24P600-2
Product and model: BP series Pure sine wave inverter/B24P600-2
Fault description：Inverter running , LED lights off . AC output no power.
Causes：DC or Battery Input Reverse
Solution and step:
1. Remove all wire from Pure sine wave inverter, include battery and AC output.
2.Clear surface dust
3.Uninstall screws from Front and rear panels
4.Open the top cover
5.Dial out the fuse
6.Check and replace bad fuses
7.Close and complete
BP series 600W vehicle inverter
pure sine wave inverter DCBUS-low off grid solar inverter no vac output off grid solar inverter car inverter 600W vehicle inverter AC output DC input MOS tube BP series dc to ac BP series pure sine wave inverter B12P2000 BP series with charge inverter power inverter pure sine wave Ppure sine wave inverter Helios II Series BPlus series Mppt solar charge controller