Canada
Asked — Edited

Answer To A Long Time Question

Hey All,

I wanted to demonstrate the current handle capabilities of the EZ-B and at the same time doing a small test. Here's a quick video I made of Six with 18 servos, I know a few of you asked a long time ago if Six could run with 18 servos, the answer is Yes!:D

Six with 18 Servos Video

I also wanted to demonstrate the large in rush current demand that Heavy Duty servos can have and how it might effect your power supply or battery pack so I made another quick video :

In-rush current example Video


ARC Pro

Upgrade to ARC Pro

Become a Synthiam ARC Pro subscriber to unleash the power of easy and powerful robot programming

#17  

Thanks for the clarification guys. I understand that there are Amp meters designed specifically to measure amps both ac and dc. The confusion entered when I was thinking and answering the question based on a Digital multimeter from my favorite Radio Shack store that has the ability to directly measure dc amps by being connected in series with the device under test.

United Kingdom
#18  

What battery are you using? Can it provide the required current to power all 13 servos?

From what I can find on those servos, they can pull 2500mA on startup and on stall. 13 x 2.5A = 32.5A (probably more if running above 6v)

United Kingdom
#19  

What voltage are you providing the servos? The datasheet only gives info for 4.8v and 6.0v, if you are pushing them at battery voltage this will increase the current draw (however it will vary depending on battery voltage).

Max continuous discharge may be more than 20x1.3A (26A) if all servos are under a full load. Inrush/Burst should be OK at 30x1.3A (39A) though.

#20  

Anthony no one replied regarding the posting of your meter pic and it may be obvious.... that meter will not measure above 10 amps. Not knowing all the particulars about your project is hard to say that the 10Amp scale would suffice.

                               Chris
#21  

Again, it comes down to what is the amperage consumption of your setup.

#22  

As Doc mentioned..... Everything seems to point to a power supply problem... Have you tried disconnecting all servos and then adding back one at a time until your get the ezb to reset? Do you have a picture of your setup (wiring, battery.... etc)? Is it possible to post your code here as well?

United Kingdom
#23  

@Ant you are comparing two completely different set ups. It's like asking why my work van will only do 60mph and takes a week to get there but my car does 155mph and takes 4 seconds to get there. Two totally different things.