Can a Servo stay still with no signal?

[yoraish]

Hi all,
I'm working on a project that needs a servo to stay still, while the receiver is not getting any signal (Tx shut off). Right now the servo freaks out until I turn on the Transmitter. Is there any way to make it work besides disconnecting power to the receiver?

Thanks,
Yorai

[Charlie-III]

When dealing with RC:

TX on, RX on
RX off, TX off

The RX should not have power when the TX is off, you never quite know what will happen.

[yulour]

Originally Posted by Charlie-III

The RX should not have power when the TX is off, you never quite know what will happen.

+1

You're looking for a 2G4 Rx/Tx with proper failsave settings. It will work, but the above statement applies.

[Meatwad]

Originally Posted by yoraish

Hi all,
I'm working on a project that needs a servo to stay still, while the receiver is not getting any signal (Tx shut off). Right now the servo freaks out until I turn on the Transmitter. Is there any way to make it work besides disconnecting power to the receiver?

Thanks,
Yorai

Find a way to disconnect power from the servo, turn it off before turning off the tx.

[Calderwood]

What's the project?

[TacoCrawler]

yes... but you'll need a bec

I installed the Castle BEC...
my servo comes on immediately and centers when the battery is connected
and the TX is off... it stays still as well.

Maybe your servo isn't receiving enough power and that is causing the erratic behavior ?
Is it a high torque servo or the stock thang ?

But yeah... like others said previous...
just a smart procedure to turn on the tx before connecting the battery...
and not turn the tx off until the battery has been disconnected.

If you don't have a BEC...
I'd recommend getting one.

[Charlie-III]

Digital servos tend to "hunt" for center all the time, even if they have a valid RX signal.

My original post still stands though.

[yoraish]

Thanks for all the replies!
Actually the project is a remote controlled door lock, not so RC related.
Well the servo is just a stock one ( better one on my truck (: ).
I guess I'll stick to Turn on Tx method and that's it.

[losikid]

Servo can't stay still with no signal. If you have a receiver with a fail safe feature then the rx will send a neutral signal to the rx when the tx is off.

[Calderwood]

Originally Posted by yoraish

Thanks for all the replies!
Actually the project is a remote controlled door lock, not so RC related.
Well the servo is just a stock one ( better one on my truck (: ).
I guess I'll stick to Turn on Tx method and that's it.

Door lock for what? Do you need the servo to stay still in both positions or will it always be in the same one position when the tx is turned off.

[yoraish]

Well an actual lock for the door. A real door. What I finished up with is just turning off power to the Rx and servo while Tx is closed. Or turn both on when I want control over the lock.