So, I’ve been working with my new LYNX-6 Arm for several weeks now - flickr.com/gp/10283762@N06/H557S1 - and all is going fairly well… This morning I even started expanding from the Mini-ABB to add an Emergency Stop and Resume/Reset… more about that later…
The problem occurs under laptop or Mini-ABB control, and at unrepeatable locations in the path program execution… - 1 or more servos will simply drop out of action while the rest of the servos attempt to perform the command steps. This has happened while in manual mode during motion, and during manual mode while at rest (and jogging the arm exhibits erratic path due to the “off” or dis-enabled servos). This has also occurred while teaching new positions (regardless of which of the three motion types are active). And it occurs, with great frustration, during critical auto-run paths (“critical” means; the mini-servo which operates the pincers is now damaged “stripped-out” because the two shoulder servos simply disabled while the grip was closing, permitting the arm to colapse to the table against the motion of the closing grip!)
Now I need a new mini-servo and advice from the masters out there…
Check out image 3 in this forum thread. This will power the VL (logic) separately from the VS (servos). Remember to remove the VS=VL jumper on the SSC-32. lynxmotion.net/viewtopic.php?p=23944#23944
Thanks for suggestion - I was already starting to connect a 9-volt battery to each processor, so I was glad to hear your confirmation of my suspisions(sp?)
I’ll purchase another power supply for the processors tonight. I’ll return and report the results - (I hate reading a dead-end forum thread…)
…I added a 9 volt transformer (850ma) and seperated the power supplies at both the SSC-32 and Mini-ABB. All is going well so far - no lost servos…
…I still need to replace the mini servo for the gripper, but, I have a ‘show-n-tell’ tomarrow! “No time to say hello/goodbye - I’m late - I’m late!!”
I’ll get some pictures posted tomarrow evening - I think I’ll have time. There is this issue about four other industrial robot manufacturing cells that need my attention… OH well,…
YUP! The extra tranformer solved the problem. The servos failing to respond to the SSC-32 -or- the SSC-32 forgetting about the servos… what ever the case, all is running well now…
I ran an endurance test yesterday. If something is giong to fail, I want it to fail a week before the show - not during the show… The arm and electronics ran flawlessly for 5 hours straight. I got bored of watching it after 2 hours and went to watch Star Wars - Revenge of the Sith. I forgot all about the bot until I headed back up stairs to see " what is that funny ‘hissing’ sound " - " Oh! it’s you! – sorry, daddy forgot,…"
I’ve got a few people, here at work, who want to have bots of thier own! I think I need to start and adoption agency!
what is that funny ‘hissing’ sound 
Oh! it’s you! 
– sorry, daddy forgot,…"