Ar7200Bx savox servo overheating

[tonywv12]

Put some savox sh-0257mg servo,s in my 300x set Ar7200Bx to 200hz as in savox specs and servo,s were getting really hot unpluged power and turned hz down to 50 still really hot, unpluged one servo out of aux one socket and cooled, these are brand new servo,s if I plug all three in they get Hot if I just plug two in ok if I plug third one in when powered up they are ok but if I leave them all pluged in and switch bk on they begin to overheat done a factory reset but still the same do you think beastx could be faulty heli was tipping to the right when eflight servo,s were installed without a input put these in my trex 250 with micro beastx and there is no tipping to the right any one any idea,s please.


Thanks
Tony

[WildWake]

check the power/volts going to the servo's, you might be running them at too higher voltage

[Boggy]

knock the frequency down a bit see if that helps? maybe 133?

http://www.rcheliaddict.co.uk/main-d...frequency.html

[tonywv12]

Thanks for reply, These are the same voltage as the ones that were stock 4.8 to 6.v is there any way of reducing voltage do you know if it is too high would I have to change the esc

[tonywv12]

Knocked the freq down to 50 but still really hot

[bigpops]

I used to run 65Hz, which is the slowest digital setting when I had SH-0257MGs on a Beast X. They didn't get hot, but I did have three burn out in my 450 sport, all in the front left aileron position. There must have been something binding them up. I changed to Hitecs and had no further problems.

I ran the same (Savox) servos on the 450 Pro with no problem at all.

[WildWake]

Thanks for reply, These are the same voltage as the ones that were stock 4.8 to 6.v is there any way of reducing voltage do you know if it is too high would I have to change the esc

I was asking if you have checked the voltage supply isn't exceeding 6volts, could be faulty supply voltage, just a thought.

[tonywv12]

Yes I will give that a check thanks

[tonywv12]

measured voltage and bang on 6v I am going to atach servo,s to my micro beastx in my trex and see if I have the same problem

[tonywv12]

Tried savox servo,s on micro beasx and controller will not set it flashes all led,s dim, tried one servo at a time with the same results but when I plug eflight servo,s in it is ok, sent beastx bk to hh for testing after phoning them.

[tonywv12]

I got beastx bk a new one and servo,s still the same on phoning around looks like its a faulty batch which supplier denied. So how come shop had got the same number as the date on the bottom and had sent 6 or so bk and who foots the bill for post and that and what if it has done anything to the beastx as two had melted together on removing them

[razerman1]

Hi, I have had quite a number of these servos and hadno problems, but recently I have purchased quite a few of the following servos"Savox SH-0257 MG" and had quite a few burn-out.
I have found that if 3 or more of these havetheir cables harnessed together they overheat (seems to be if the signal cablesare close to each other), as soon as they are separated the problem stops andthey work OK. As I build quite a few helicopters it is often necessary to havecables harnessed together. The only way I have found to use these servos is toput a wire sleeve on each cable and ground them