Will do, Thanks for all your help Dave

OK, so I've finally had some time to install two of the three new Sabertooth 2x32s into the Robot and of course, this has not been a straight forward operation. I cant get one of them to do an auto tune. I have set the dip switches on the troubsome Sabertooth 1 & 2 "Off" and 3 to 6 "On" as per the Kangaroo Instruction sheet. I have set the Dip switches 1 - 4 on the Roo all "On" as I am using an encoder for feedback. I have tried connecting to the Roo with the DEScribe software and reset the Roo to default settings. I also checked that both the Roo and the Tooth are set to 9600 baud. I am using limit switches so I am trying to do a #2 Auto tune and after it should start there is no movement and I get an error code on the roo. (six flashes) which according to the manual is a limit switch fault. I have checked and rechecked the limit switches (normally closed) and they seem to be fine, I'm now wondering if the roo is faulty. This is the roo that was connected to the faulty Sabertooth 2x12 I replaced with these new 2x32s

Does anybody have any suggestions?

Steve

Well, If this is the same roo you used with the sabertooth you were having trouble with then maybe your problem was a bad roo all along? If you move this roo over the other working system does the problem follow?

Can you remove the limit switches and use one of the other tuning options and have it do a successful tune?

Hi Dave,

I am hoping to have some time tonight to swap the roo's around to see what happens. I'm not sure if the roo was the cause of the last issue with the Sabertooth because the Sabertooth had the red error light on with nothing else connected to it..... unless..... the roo IS faulty and it damaged the tooth.... doesn't seem likely though.

I'm planing to move a known working roo to the non working tooth and see if that fixes it. I'll let you know how that goes.

Steve

Also make sure you have continuity all the way through the connectors and switches of the limit switch circuit. If the roo doesn't see a signal traveling through from pin to pin them it will think there is a open somewhere. Could be a badly crimped connector, broken wire, miswired or bad switch. Disconnect the circuit from the roo and do your testing apart from the roo. A continuity tester is one of the most variable testers you can have. Most multi testers have them.

Thanks Dave,

I have confirmed the limit switch circuit continuity already. I checked the plug connections for tightness, broken terminals, the limit switches themselves for correct operation and the whole circuit by checking across both sets of limit switch terminals on the rear of the Roo with everything plugged in.

I still haven't had a chance to investigate any further and it looks like I will have to wait until tomorrow for another go at it. Too busy at the moment with other stuff and my poor robot is having to take a back seat tired

Thanks again for your thoughts Dave.

Steve

Cool, sounds like you're doing all the right things.

If this is a old roo that you have already did an autotune on (or tried to) you may want to try to get into the software and do a reset. You may be picking up the old limit switch limit settings.

Once in the software try to tune it from within there. You'll find it easier to see what's going on and make adjustments.

Well ya learn stuff every day. I didnt know you could auto tune while connected with the DEScribe software. I might try that too.

I already tried resetting the roo back to "Default" with the software, I could have sworn that was going to work....... but no dice.

I also was thinking of trying the "Teach" tune, but I have my doubts that will work because I still suspect the roo is faulty. I will confirm that by swapping them around on the weekend.

Steve