Asked — Edited
Resolved Resolved by Dave Schulpius!

H_Bridge Wiring Question

Hello,

I found an issue with the factory wiring with my Roli's H-Bridge wiring. When I was doing the h-bridge test I noticed that the unit wouldn't move. Upon inspecting the h- bridge wiring I noticed that the red and black wires coming from the on/off switch were wired wrong on the h- bridge. The red and black wires were off by one screw slot. I also noticed a burning smell, but couldn't see anything that was burnt. After correcting the wiring error,I still can't get the unit to move. I'm wondering if the wiring error blow out the h- bridge.

Is there any diagnostic that I can do to confirm this, and if the h- bridge is bad how do I go about getting it replaced under warranty?

Thanks in advance for your help

Calvin

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#2  

Yes, sadly the h-bridge is most likely bad now. The hot wire is going straight into the ground port of the h-bridge. Epic fail! eek

Your going to have to get a now one. It's an issue that has been talked about before. The people who assembled your unit screwed up. As bborastero pointed out; you need to use the Product Warranty section on the Contact Us page and EZ Robot will make it right.

It sucks that you have to now wait a week or more till the now H-Bridge arrives to use your robot. tired

#3  

They seem to be stocking some replacement parts in Canada now. I got the missing roation servos from my Scorpion kit overnight delivery from EZ-Robot headquarters, so it might not take too long.

It they tell you it will be more than a few days email me (address in my profile). I have a spare H-bridge I could express mail you and you can have EZ-Robot send the replacement to me.

Alan

#4  

Hello, Thanks for all the replies to my problem. I believe that as Dave says my h- bridge is fried from the wiring error made by the factory. I'm going to request a replacement from ez-robot. Will update this post if this resolves the issue.

Thanks, Calvin

#6  

Hello,

I sent in a warranty request on 12/28/2014 and I haven't heard back from ez-robot yet. Can someone from ez-robot tell when my warranty request will be processed?

Thanks, Calvin

#7  

Ez Robot have been closed since Dec 24th.... They just re-opened today... They should respond soon....

United Kingdom
#8  

@Alan, if you hadn't said anything I would have missed the fact my scorpion kit was missing the 2 rotation servos too. Thanks for the reminder.

@clovejr, they will respond, as Richard said, they have only just started back again after the holidays. Give it a few days/a week and if you still haven't heard chase it up. They are usually very good though so you shouldn't worry too much about it.