Castle hydra ice hv 200 problem

[Cooper]

3914kv on 4s the lehner site shows 220 amps and almost 60000 rpm not tame by any strech

What he said

[RaceMechaniX]

When I plug it into the castle link it doesn't recognize it

Send it back, it's got a software bug.

[RaceMechaniX]

I have a 200 HV that I just got and was supposed to be Brand new, Its in a 29" Mystic on 4S with Lehner 1940/4 Motor, batteries are Turnigy Nanotech 5600mah 2S. PUt it in the water it went 5ft and quit, motor , esc, and batteries weren't even warm to touch, everything was pretty much air temperature, took it out of the water lifted hatch, both capacitors on it blew right out of it.

Pretty tame setup for this caliber of ESC if you ask me. If I knew this was going to happen I would have just bought a $80 Seaking ESC.

Has anyone else ever had this happen? And what was the cause of it?

[ATTACH=CONFIG]102941[/ATTACH]

Way too much amperage. What does the data say? A 1940/4 is a 4000kV motor loaded. That is SAW territory for a 4 cell set-up. The blown caps are a dead give away the ripple current is too high. Remember that part load is hard on the ESC and in particular the caps. With a hot motor, this causes huge motor phase currents even at partial throttle. Poor connectors and long battery leads will make the matter worse (just speculating here). Running 1P with average packs is also not helping.

Also, using an HV esc with a LV motor is somewhat of a mismatch. In particular the caps are rated for 50V and you are only using 16V max. The LV ICE would work better are the lower voltage caps have greater capacitance for the same case size. You can help the situation by using an external cap back hardwired between the ESC and battery leads.

TG