jr 8900 with csm 720

[nightstalker]

Hi all

Is there anyone else running a jr8900 with a csm 720 ??
Iv just bought a 720 as my 401 blew the 8900 due to incorrect frame rate and now i have new one and now connected up to a 720 and its working awsome but my question is about the servo getting warm,

so is anyone esle running this set up and the servo is also warm with yours??

I spoke to Wayne Osborne on the way home last night from testing and setting up and he said its normal for these servos to get warm like the 9256 with the 611 due to them taking high ampage.

thanks

steve

[Edders]

Im running the same combo, never really checked the temp

I should be flying it at lunch so Ill let you know


Edders

[nightstalker]

cheers edders

[SRH990]

I've just had an 8900g delivered to use with the CSM 720 in my Trex 600. What settings do you use for this servo with the 720, frame rate, pulse width?

[nightstalker]

I have mine running default the way it come out of the box being i dont have a lead,
But Duncan Osborne is changing over to 8900s and they will be finding out shortly whats the recommended frame and pulse rate should be,
Some say it can take 333 but 4 of us have had them blow on a 401 and that runs at 333,

So watch this space as soon as i know l post on here, unless Edders knows

[nightstalker]

Any luck edders?

[Edders]

sorry I forgot to check the temp

as for settings im currently running the servo at 760us and 333fps not sure what if any damage this will do

Edders

[3dbasher]

I have mine running default the way it come out of the box being i dont have a lead,
But Duncan Osborne is changing over to 8900s and they will be finding out shortly whats the recommended frame and pulse rate should be,
Some say it can take 333 but 4 of us have had them blow on a 401 and that runs at 333,

So watch this space as soon as i know l post on here, unless Edders knows

I'm using that combo in my raptor you saw fly at nuneaton, i've heard it runs333 but like you said the 401 uses that frame rate in ds mode which seems to cook the 8900.. i went for the middle ground 285ms?

[nightstalker]

sorry I forgot to check the temp

as for settings im currently running the servo at 760us and 333fps not sure what if any damage this will do

Edders

Ant the 760us for servos like 9256??

[3dbasher]

Ant the 760us for servos like 9256??

yep only the 9251 & 9256 run in 760us you want 1520us for all other servo's just the frame rate varies

[nightstalker]

that's what i thought, well Wayne ozzy will be plugging hes laptop into mine to do some fine tuning as i don't have a cable

[Edders]

sorry about the delay the 8900g does get warm but not hot during 3 1/2 mins of hardish flying

Edders

[nightstalker]

Good stuff and i thought you forgot about me, but yeah it was confirmed with my mates set up as also getting warm so all good

[Edders]

me forgot you nah never mate


Edders