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HI,
I also suspect a capacitor .Thous that chip could also be faulty. I would put a voltmeter on the power supply of the board to see any change during startup ....
HI,
the problem is that the motor is not getting nominal voltage . While not getting nominal voltage , nominal speed will not be reached . Try to run it without load . Without load is easy for the motor to speed up. Also if you get to this, you can check if the rotor is spinning easy in it's...
yep , something with setup. The setup is pretty basic , i also found a manual with 10 step's indicating how to setup remote/local mode . Maybe the drive has something ...
I also can't enter all access levels to gain access to all settings ,... eventually a factory reset
HI,
I tried to setup an ATV312 inverter to drive a 3ph ac induction motor with 4-20 mA reference on AI3 input . The trouble is that the inverter does not take in account the signal from AI3, it drives the motor only taking account of the internal reference . For some reason can't program it...
Re: lead acid batteries , desulfation circuits
meantime i set up a small cristal oscillator with a cmos cip that drives a 2sk27.. something like transistor (its a mosfet savaged from a dc dc converter ). I manage to get 44Ah batteries back to about 80 % of their capacity ... batteries are not...
Re: lead acid batteries , desulfation circuits
i used function generator to drive a very good mosfet ... series resonance can bee seen easy on the supply's ampermeter.... anyway conclusion is that high frequency pulses can regenerate battery , and low frequency not . At 10 Khz the battery...
Re: lead acid batteries , desulfation circuits
low frequency does not solve the problem , battery regeneration is very slow thous i think it can prevent sulfation. I will build a 4 Mhz circuit do the job more fast
Re: lead acid batteries , desulfation circuits
1.6 Mhz, 40V , ~300mA . Started with 50 V but had to reduce it because radiation, i was disturbing other equipment around...The battery died because working on a small solar system and got frequently under charged . Now that is fixed with a low...
Re: lead acid batteries , desulfation circuits
i saved a 44Ah battery with 1.6 Mhz , with 10 khz the result was all most zero , thous i let it 24 hours on .
Then started desulfation with 8 Mhz , and in 2 days i got to 1.6 Mhz .
Practice kills theory
PS: references : google it :)
Oh and...
lead acid batteries , desulfation circuits
HI,
lead acid batteries can be desulfated with high current spikes at 2.... 10 Mhz frequencies . Why do most desulfation circuits from the internet work in khz range?
Most <50Ah batteries resonate around 1.6 Mhz , that's when the crystals break from...
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