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HomeAircraftHelicopterMain Discussion › Vbar volt out in question
10-16-2011 03:48 PM  6 years agoPost 1
helixangle

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Mamaroneck, NY - USA

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so I had a servo failure with vbar gov servo socket as it was explained to me the servo socket out (above sensor II port) was regulated down to 5V, apparently not the case here.

if you are running HV and using a 6V servo for throttle make sure you use a step down, hate to see anyone falling victim to this

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10-16-2011 08:44 PM  6 years agoPost 2
gotnoclue

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sydney

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never seen anything to say that side of the unit is regulated to 5v, i fairly certain even MRMEL has confirmed this a few times as well.

their is no voltage reg inside the unit, they would advertise as such if it was the case

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10-16-2011 09:05 PM  6 years agoPost 3
cdrking

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Seattle

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That's one of the reasons I check voltage on the bench BEFORE plugging anything into the receiver/v-bar unit. The output voltage for the sensor is 3.3 volts but everything else is voltage in, equals voltage out. Also by checking voltage before plugging anything into it you may pick up a bad regulator, if you are running one.

Jeff

To hover is divine, the alternative is rather PLANE.

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10-16-2011 10:03 PM  6 years agoPost 4
helixangle

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Mamaroneck, NY - USA

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was told 5v out BY mrmel...looks like not the case, yes for future should double check

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Remember life is hard...even harder for stupid people

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10-16-2011 10:04 PM  6 years agoPost 5
BobOD

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New York- USA

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What was your voltage in during that measurement?
I'm wondering if it is dropping it down some or were you using a depleted pack.

Team POP Secret

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10-16-2011 10:06 PM  6 years agoPost 6
helixangle

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Mamaroneck, NY - USA

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Vbar live display says 7.2v, and out servo port 6.9, maybe a step down?

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Remember life is hard...even harder for stupid people

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10-16-2011 10:10 PM  6 years agoPost 7
BobOD

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New York- USA

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Could be a step down.
Also could be that some regulators don't regulate properly without a load on them. The meter doesn't apply enough of a load.
Try plugging in a servo and see if you can take a measurement somehow.
It seems it is doing something though...isn't there any mention in the manual?

Team POP Secret

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10-16-2011 10:21 PM  6 years agoPost 8
Eco8gator

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Palm Beach, FL

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Its on power bus...what you put in is what you get out on all plugs.

Carlo

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10-16-2011 10:43 PM  6 years agoPost 9
cdrking

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Seattle

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I found a quote by MrMel,
Vbar has other ports with 5v output (servo etc), might be that it works if I pull the power from that, putting the signal into Sensor II
Maybe this is what you're referring to.

Jeff

To hover is divine, the alternative is rather PLANE.

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10-16-2011 11:22 PM  6 years agoPost 10
helixangle

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Mamaroneck, NY - USA

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No I'm refering to the fact that he directly told me in a post that my servo ddin't fry plugged into the servo port as the servo port is regulated to 5V

Be sure the juice is worth the sqweeze
Remember life is hard...even harder for stupid people

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10-16-2011 11:58 PM  6 years agoPost 11
Nycatt

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New York

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No I'm refering to the fact that he directly told me in a post that my servo ddin't fry plugged into the servo port as the servo port is regulated to 5V
Just to refresh peoples memory.

https://rc.runryder.com/t666251p1/

I could of confirmed the same thing. What voltage goes into the Vbar comes out the same, except for the 3.3 sensor port.




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10-17-2011 12:09 AM  6 years agoPost 12
helixangle

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Mamaroneck, NY - USA

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OK my bad, guess I never went back to pg one...

K Vbar is pass through with exception to sensor II port

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Remember life is hard...even harder for stupid people

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