YGE 60a LV esc and MKS servos

[aclysma]

I am running mks servos on the YGE 60LV. I've run a microbeast, sk540, and MSH brain. I've not had a problem.

A friend of mine had the same problem as you are having with a castle ESC. He installed a BEC and the problem went away.

I think a capacitor *would* fix your problem though. Any way you can measure servo current draw?

[dl5973]

Originally Posted by aclysma

I am running mks servos on the YGE 60LV. I've run a microbeast, sk540, and MSH brain. I've not had a problem.

A friend of mine had the same problem as you are having with a castle ESC. He installed a BEC and the problem went away.

I think a capacitor *would* fix your problem though. Any way you can measure servo current draw?

I ordered a servo current logger and should have it in a week.

It would be interesting to see how much current they draw

[dl5973]

Originally Posted by aclysma

I am running mks servos on the YGE 60LV. I've run a microbeast, sk540, and MSH brain. I've not had a problem.

A friend of mine had the same problem as you are having with a castle ESC. He installed a BEC and the problem went away.

I think a capacitor *would* fix your problem though. Any way you can measure servo current draw?

sorry to go off topic

how does the brain fly compared to sk540?

I have been curious about the brain just holding off until all issues have beeen sorted out.

[desertstalker]

Originally Posted by aclysma

I am running mks servos on the YGE 60LV

Same here (DS95s/DS95i) and a SK720. Telemetry for RX voltage shows no drops below 5V and the SK log backs this up.

[dl5973]

Originally Posted by desertstalker

Same here (DS95s/DS95i) and a SK720. Telemetry for RX voltage shows no drops below 5V and the SK log backs this up.

I might have a servo that is puttting out an abnormal amount of current.

or a faulty bec

not having much luck lately with RC gear

[spykez]

Originally Posted by desertstalker

Same here (DS95s/DS95i) and a SK720. Telemetry for RX voltage shows no drops below 5V and the SK log backs this up.

The SK log is probably the most useful I think, if the SK can log a satellite going offline or rebooting.

Telemetry for receiver voltage I doubt has that much temporal resolution to catch a momentary voltage undershoot but I could be wrong.

But I guess there are other signs that could suggest this phenomena if you don't have a logger; you would also see this by the 'blinky' sat and and might perceive a moment of loss of control.

[rossk]

I tried to recreate what the OP is experiencing with my setup, YGE60A, MKS DS95/95i, 2x DSMX sats and MSH Brain.
I was unable to get any sats flashing.
I had the servo's pretty warm after loading them and then I was flicking the sticks as fast as I could for as long as I could and everything was solid.
So I am thinking something is not right in your setup, maybe a bad servo drawing too much current etc.
There is nothing wrong with the YGE60 BEC if everything is working as expected.

[LVeillon]

Originally Posted by dl5973

I loose signal within a few seconds
Also I loose power in normal flight towards the end of the lipo. My motor cuts out and back in

I'm using a Skoookum 540

So you are using the Skookum as a RX with a Sat? I'm not familiar with the 540 at all, but I've had some similar issues.

If you are using a RX....which one is it?

[desertstalker]

Originally Posted by rossk

I tried to recreate what the OP is experiencing with my setup, YGE60A, MKS DS95/95i, 2x DSMX sats and MSH Brain.
I was unable to get any sats flashing.

No surprise there, DSMX sats will NOT flash under power loss conditions. They have no way to detect the brownout.

[rossk]

Originally Posted by desertstalker

No surprise there, DSMX sats will NOT flash under power loss conditions. They have no way to detect the brownout.

I thought read that if they have a brownout, they will be flashing?
Either way, I also could not get the servos to slow down/stop at all

[desertstalker]

Originally Posted by rossk

I thought read that if they have a brownout, they will be flashing?

Only DSM2 ones do that, they flash on powerup if the TX is using the same 2 channels as it was when they last linked. As DSMX is channel hopping the TX will have moved on by the time the RXs link up so they have no way to know the power interruption was not deliberate on the part of the user.

[spykez]

Originally Posted by desertstalker

Only DSM2 ones do that, they flash on powerup if the TX is using the same 2 channels as it was when they last linked. As DSMX is channel hopping the TX will have moved on by the time the RXs link up so they have no way to know the power interruption was not deliberate on the part of the user.

If you're talking about loss of signal maybe, but I thought DSM X sats would blink if they reboot. I don't have the literature in front of me but FWIW, cast a gander at this below, maybe you might be able to explain it a wee bit more!

https://www.helifreak.com/showpost.p...50&postcount=3

[desertstalker]

Originally Posted by spykez

If you're talking about loss of signal maybe, but I thought DSM X sats would blink if they reboot.

No, because they cannot tell if you intended to power them off or not, without the ability to detect that the TX has not been power cycled they would flash on every power-on.

[spykez]

Hmm.. mine don't - the LED stays solid as I power up the heli's and fortunately stay that way.

Take a look at that video again. The guy has a DSMX sat bound to his AR7200BX and it starts off with a solid LED. Some malfunction appears to occur. I think it's the satellite rebooting. I think the SBEC caused the satellite to reboot with a transient voltage undershoot. It subsequently blinks.

That said: I am no electrical engineer.

[desertstalker]

Originally Posted by spykez

Take a look at that video again. The guy has a DSMX sat bound to his AR7200BX and it starts off with a solid LED. Some malfunction appears to occur. I think it's the satellite rebooting. I think the SBEC caused the satellite to reboot with a transient voltage undershoot. It subsequently blinks.

That said: I am no electrical engineer.

But bound to what and in what mode, if you bind in DSM2 mode then they will blink, they dont in DSMX.

It is easy to test, bind in DSM2 mode and then unplug the heli (leave TX on) and plug it back in, sats will flash. Do the same thing after binding in DSMX mode and they will not flash.

[spykez]

Ah, thanks. Now you have me with a little doubt. Haha

[dl5973]

Originally Posted by LVeillon

So you are using the Skookum as a RX with a Sat? I'm not familiar with the 540 at all, but I've had some similar issues.

If you are using a RX....which one is it?

Yes im using the sk 540 as an RX with dsmx sats

I had a dsm2 sat and had same problem.

I installed an external bec and problem is gone.

[crf69]

if the yge is the newer one with 6amp cont. and 12 amp peak.

you are golden.

Sent from my phone using Tapatalk2...otherwise i would of sent it from my home PC.

[desertstalker]

Originally Posted by crf69

if the yge is the newer one with 6amp cont. and 12 amp peak.

There is no new 60A ESC, the smallest with a 6A BEC is the 90LV, much to big for a mini P.

[aclysma]

Originally Posted by dl5973

sorry to go off topic

how does the brain fly compared to sk540?

I have been curious about the brain just holding off until all issues have beeen sorted out.

I need to do more tuning. It definitely flies. It has a weird tail habit I haven't had time to try to tune out, and I can't get the cyclic to feel like I want it. But I haven't had the time to tune it because I've been trying to chase an issue on one of my bigger machines. The SK540 flew perfect out of the box with default settings, though the tail was maybe a little harsh. I'm sure I can tune that out. The Brain has amazingly friendly software that encourages you to tweak it but of the BeastX, SK540, V-Bar, and Brain, the Brain is the only one that I don't feel comfortable with on the default settings within a few flights. So I wouldn't recommend to a beginner, but for someone willing to experiment, it's worth trying.

Regarding the OP's issue, have you tried putting a capacitor on the model? It might fix the symptom.

As to fixing the root cause, I am anxious to know how your servo ampmeter test goes.