I’m using HSR-5995TG servos for my arm and the SCC-32 to power them. The servos have a current draw of 5.2 amps at lock/stall when supplying 7.4V. Is there a max current that I can supply to the VS1 or VS2 Terminal? Specifically is I were the hook up 32 servos could I supply 7.4 Vdc with 83.2A (5.2*16) to each terminal without damaging anything?
The SSC-32 can handle 15 amps per side for a total of 30 amps. Even though the servo can draw 5 amps at stall there is no reason to design for this limit. In other words all opf the servos are not likely to be at stall at the same time. Besides the servos will overheat and become damaged if left at stall for even a short time.
One can make a simple heavy duty bus to handle the +v and ground for the servos if desired.
If you really think you need to, you could flip it over and solder a few pieces of wire along the back of the power terminals. You’d have to solder every pin, but you would definitely have no problem with current handling.
I wouldn’t want to see excessive current routed through the board and pins. It might be better to make up “satellite” boards, to split up the loads. Plated-through holes on proto board and .025" (as used) wire-wrap posts work well for this. It would also be a good idea to FUSE the motor circuits!
Alan KM6VV
If you’re looking for a plug-and-play option for separately powering servo groups, you could check out this servo power board. It would be pretty bulky with 4 of them though, I think I would rather rig something up myself. Just throwing it out there.
Thank you guys for being so responsive, I really appreciate it. Those are good ideas, I think either using those power boards or just beefing up the SCC might be my best options because ultimately I’m going to be using a lot of servos. Robot Dude, what limit should I design for? What would be a safe design so that I don’t damage my servos, but still utilize their high torque.
I’m going to start a new thread describing my whole project, and what I’m ultimately trying to accomplish because I feel like there are some major holes in my design.
The design limit depends on what you are building. If the SSC-32 can’t deliver the required current, it’s traces could be damaged, but the servos are never in danger. I wil look for the project description.