ESC problems, I think
This is a case of the blind leading the blind as I am a relative novice trying to help out a complete newbie by trial and error.
The ESC in photos, of which the Newbie has bought three off, is a Chinese sourced item here is the description
EL Water Resistant 110A Electric Speed Controller
Model Number: rcps61604
The EL Model 110A ESC allows remote control of boat electric motors from an RC System. When connected with motor, it is capable of supplying up to 110 Amps (forward) or 40Amps (backward) of continuous motor current. Its integrated Battery Eliminator Circuit (BEC) powers the receiver from the motor battery, with automatic cutoff of the motor power to preserve receiver power as the battery becomes depleted. It is small, powerful and waterproof, which can be used for different type of boat.
The ESC has been installed into a speedboat type GRP hull with a typical high pitch 2 bladed prop and 500 type brushed motor.
On its first run the ESC died.
My thoughts, right or wrong?????
Must be pulling more than ESC rating?
Checked ESC it was a BEC, ESC and Receiver battery was also installed. Also noted no fuse installed
RC is 6 channel 2.4 system.
Newbie went away after BEC was made inoperable on new same type ESC. Thanks after reference to this forum and diagrams on ACTION web site and a fuse was also installed.
A quick out of water amp test showed motor was drawing 10 amps well below ESC rating.
Thought maybe ESC, BEC being connected with receiver batteries installed might have caused ESC to die.
The black art is indeed black for me.
So off goes the Novice and comes back, help this ESC has also died and looks damaged same as the first one; case slightly melted and burnt smell.
But the 30 mp fuse, which he installed in fuse holder, power feed from battery didnt blow.
Could it be that ESC cant handle the Amps which did not exceed 30 amps because fuse was still intact?
Is that conclusion correct or is there something else amiss.
Even considering Chinese amps I would have thought that the 110 amp ESC should have been able to handle at least 30 amps.
By the way he also had two 7.2volt battery packs connected in parallel. Suggested that he runs with one battery and install a lower strength fuse, 20amp, plus an extra fuse between motor and ESC which is overkill, but cant hurt.
Suppose it is possible to have faulty ESC but two the same or perhaps a faulty fuse.
Any suggestions or ideas/thoughts of what else to check for would be appreciated.