Richtel
Well-known member
Yes Sir
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Richtel
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Jumper 1 is out and i have restartet, but is the same
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Maybe INA226 i2c adress issue ?? or diode not in correct direction .
What is the version of the power PCB ?
Can you share a picture of the Power PCB ?
Here some value for old pcb version taht you can check on your PCB, unfortunatly it's with the charger connected.:
What is the version of the power PCB ?
Can you share a picture of the Power PCB ?
Here some value for old pcb version taht you can check on your PCB, unfortunatly it's with the charger connected.:
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Richtel
Well-known member
Oh yes, its v1.08 the the last one i think... and the little charge led on Board, is always on!?
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For led check the correct direction of D3 diode,
To avoid change on PCB ,Certainly it's more easy to remove (unsolder) pin3 from INA226 U3 and use a wire from U3/Pin3 to output of F1
Richtel
Well-known member
So fantastic, You are really crazy and extremely quick at solving problems. Thank you very very much for the quick help.
Bernard I take my hat off if I had one
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Richtel
Well-known member
OK, but unfortunately the LED still lights up very weakly. In my opinion, is the diode seated correctly?
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Richtel
Well-known member
OK, I might have figured out what the problem is. The spear diode still lets 2.4v through, which is enough for the LED to glow a little weakly. For example, as soon as I hold the multimeter to the charging sockets on the front and measure it, it goes off briefly because it doesn't seem to have enough juice. I take it away and it glows dimly again...
Ok ich könnte herausgegunden haben woran es liegt. Die speerdiode lässt noch so ca. 2.4v durch, das reicht der led um etwas schwach zu leuchten. sobald ich das multimeter zum beispiel an die lade buchsen an der front halte und messe, dann geht sie kurz aus weil sie nicht genug saft mehr zu haben scheint. nehme ich es weg dann leuchtet sie wieder schwach...
I think you can leave the led like that, but i am not sure it's something normal if JP1 is remove : possible Q2 issue
Can you test the automatic charging process ? (When you plug the charger on charge connector you need to see the led ON with strong light and into arduremote (setting battery) the charge voltage need to jump to 29 V and sense to 0.6A or more if battery is not full)
Into basic working mode the Led is mandatory for the station to detect if mower is dock or not and start or stop the sender , But in the last code version you can use WIFI to do that.
Can you test the automatic charging process ? (When you plug the charger on charge connector you need to see the led ON with strong light and into arduremote (setting battery) the charge voltage need to jump to 29 V and sense to 0.6A or more if battery is not full)
Into basic working mode the Led is mandatory for the station to detect if mower is dock or not and start or stop the sender , But in the last code version you can use WIFI to do that.
Richtel
Well-known member
Hello,
the charging circuit works!
The LED becomes brighter as soon as the charging station docks and darker again when it is off again. But only with jumper, as it should be.
Wonderful, I'm happy.
I wish you a nice Sunday....
It's OK for MOW800 if you have the li-ion charger and battery with BMS
But maybe your PCB have issue in Q2 (certainly shortcut and always on).It can explain the 2.42V on Charge instead of 0V
The correct working mode is made by Q2 : teensy use one output to close or open Q2 and start or stop the charging process according to bat voltage
Jumper is here to bypass Q2 and always charge the battery (teensy don't control the charge and you need a battery with BMS and a real charger LI-ION)
You can leave the jumper and use the mower like that without issue
Richtel
Well-known member
It's OK for MOW800 if you have the li-ion charger and battery with BMS
But maybe your PCB have issue in Q2 (certainly shortcut and always on).It can explain the 2.42V on Charge instead of 0V
The correct working mode is made by Q2 : teensy use one output to close or open Q2 and start or stop the charging process according to bat voltage
Jumper is here to bypass Q2 and always charge the battery (teensy don't control the charge and you need a battery with BMS and a real charger LI-ION)
You can leave the jumper and use the mower like that without issue
OK, I have a battery with BMS but could it possibly be a problem with the IRF Q2 of the MOSFET (n channel) or (p channel) type!?
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It should be an N-channel
The symbol in the wiring diagram is reversed, but the pin assignment is correct, according to my understanding.
1 - Gate
2 - Drain
3 - Source
But nothing has changed there from the first Version of the PCB.
But i should not be surprised if that is also wrong.
The symbol in the wiring diagram is reversed, but the pin assignment is correct, according to my understanding.
1 - Gate
2 - Drain
3 - Source
But nothing has changed there from the first Version of the PCB.
But i should not be surprised if that is also wrong.
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