Long time user of the MMM, I have an issue with two of my MMM recently thats got me baffled. Im running them in a 8T2.0, with a venom 70c/5300 4 cell lipo, spectrum telemtry rec., castle CC BEC set to 6v, JR servo 9100t, currently running my truggy motor in it 2000kv(my 1900 is in for service).
Anyway thats the setup, now the problem:
I get intermittant throttle interuption on hard acceleration, and complete cutout out on 90% of my hard landings. I DNF'd two heats and the main last weekend it was quite frustrating. After the second heats DNF, I put in a spare ESC(MMM) that I have and the same stuff. After coming up with zero, I took this approach:
replaced deans connector on ESC
resoldered bullets that go into ESC from motor wires in case wire was broken inside sheathing
replaced receiver with spare spectrum
Went to park today with a buddy and just started hitting the skateboard ramp, with massive air, I was hitting this large grassy knoll to reduce slamming, but the G's of motion where still the same and I was able to recreate the shut down. My buddy was at the DMZ and said that when it landed the ESC would shut off and then he would hear it reboot. When the unit goes out, I still have steering from the BEC, but no throttle obviously. then you hear the start up tone and its back running.
Again, its on harsh landings but normal as far as track racing(even though I try to downside
). Also intermittent throttle outages under acceleration.
I am stumped, two ESC;s doing the same thing.
Any thoughts other than fan wire being cut into, which I am going to look for tonight, that was an issue with some MMM years ago.
going to motorama soon and I am stumped