Navio not powering up when i connect with ESC

Sathish_Kumar · January 19, 2016, 11:15am

Navio is not at all powering up when i try to connect it with the esc module. But its powering up when i power it via raspberry pi via usb cable. Help me solve this problem. @igor.vereninov

mikhail.avkhimenia · January 19, 2016, 3:15pm

@Sathish_Kumar please provide a photo where we can clearly see how ESC is connected to Navio.

Johannes_Zeiser · January 19, 2016, 3:52pm

Maybe you just have a OPTO ESC, these ESC’s don’t provide power via the servo lead, you would need to use a seperate BEC

Sathish_Kumar · January 21, 2016, 5:33am

When i tested the esc it with multimeter its giving output of 5 volts.

mikhail.avkhimenia · January 21, 2016, 9:45am

Could you please connect only one ESC and see if Navio powers?
Also, does it gets powered if you connect the power module without ESCs?

Sathish_Kumar · January 21, 2016, 9:46am

no i tried it… its not powering up

mikhail.avkhimenia · January 21, 2016, 9:47am

What about the power module?

Sathish_Kumar · January 21, 2016, 9:47am

but if i power it raspberry pi its powering up… i dont have the connecters to test via power module

mikhail.avkhimenia · January 21, 2016, 9:49am

What do you mean? I see that you have a power module with the cable.

Sathish_Kumar · January 21, 2016, 9:52am

ya sry… now i tried it … its powering up…with the power module…
But there is no power comming out in ppm… for the ppm encoder

mikhail.avkhimenia · January 21, 2016, 9:58am

Navio+ does not output power on PPM encoder from a power module. You still need to connect BEC to the servo rail for that.

Be careful, there’s a chance that you have a short circuit.
Disconnect all ESCs and other devices from Navio and PPM encoder.
Try to power PPM encoder with an ESC directly, does PPM encoder work like this?

Sathish_Kumar · January 21, 2016, 10:02am

now its not powering up… let me check and update you… thanks

schuermannsebastian · January 21, 2016, 4:15pm

Your cabling looks really odd. On the picture I see servo connectors only occupying 2 of three pins and the connectors are plugged in opposite orientations.

aquila · January 21, 2016, 6:10pm

It also looks like 12v+ is going directly to the servo rail in the 1st picture? Or is the picture playing tricks on me?

Definitely make sure you have only 1 x 5v+ connected to the rail. Anything else will cause problems…

schuermannsebastian · January 21, 2016, 6:37pm

Smartphone again…
I now could recognize what you did @Sathish_Kumar. You turned the connectors around to only connect the signal pin of three ESCs. On the Smartphone it looked like only one pin was free. Sorry

Sathish_Kumar · January 25, 2016, 1:16pm

ya i have connected only one cable. for other 3 esc i connected only signal wires.

Sathish_Kumar · January 28, 2016, 9:00am

so it is not at all powering up the ppm encoder so . connected ppm encoder to the esc power and signal wire to the ppm in navio. But there is no signal showing in my apm planner and also tried to use ppm decoder in navio examples its giving me the output of 0. What can i do is there any way to fix it.?? @mikhail.avkhimenia @igorvereninov @schuermannsebastian

Sathish_Kumar · February 1, 2016, 6:43am

Need your Support Please . Still no reply… @igorvereninov @schuermannsebastian @mikhail.avkhimenia

schuermannsebastian · February 1, 2016, 10:03am

I never used a ppm encoder. I would use a multimeter to check all connections from the power source to the load.

mikhail.avkhimenia · February 1, 2016, 10:13am

It’s a little bit hard to understand what is going on, but if PPM encoder is not powered by a BEC from the ESC then something is wrong with one of those two (or both).

Could you please check once again step by step:

Disconnect everything.
Connect 3-pin connector from an ESC to the PPM encoder. Does PPM encoder gets powered?
Please provide a photo