good to hear that the basic ESC should work out if the box.
I checked again today - the problem is repeatable, also at 14V input voltage. There is no debris is the water (it is a water bassin made from stone which gets water from a spring). It also does not suck air at all at 14V (rarely at 16V).
Additionally, I also observed that the thrust goes down to zero once in a while for a split second letting the whole setup shake. No way to use this with a SUP
Today, I looked with an oscilloscope at the voltages - one can see the ripple caused by the ESC but this is normal - the ripple does not change when the motor switches from the high thrust / low current mode to the low thrust / high current mode.And again, the low thrust / high current mode comes with a different, slightly rattling sound.
Also the PWM for controlling looks fine. And yes, all contacts are well soldered, no loose contacts or shorts!
The ESC is mounted on a large cooling block and does not heat up remarkable.
I left the cable from the T200 in the original length because I plan to mount the betters and ESC on top of the SUB and would need the full cable length.
The whole setup is just the T200, the basic ESC, the servotester (generating the PWM) and 1500W regulated power supply. No any capacitors, coils, ferrite, … for any type of noise cancellation)
I have no other ESC with which I could try the setup.
Can you please confirm that my setup sounds good for running the T200 with basic ESC or if I should add any components?
Any other idea what I could do?