Okay well I am trying to do a little servo work and purchased the SSC-32 to do the job. I am having some trouble though, and am hoping that somebody can be of assistance.
I have connected 2 servos to the board at 0 and 1.
when i plug in the battery the servos twitch a little (I am guessing the 9V battery does not have the power needed to move the load on the servo).
I connected a 5V power source from an old ibm server power supply (it does not have cabling for motherboards or anything, just 3.3v,5v, and 12v contacts) to the VS1. At this point I removed the VL=VS jumper. Is this correct? I have tried it both ways but have not had any luck.
Does the SSC-32 have to be plugged in to a computer at this point? I dont have it plugged in because i dont want to until I have the cabling right and dont have to worry about sending an electric shock to my PC. I assume that just by applying the power the servos should be setting to their 0 position.
Okay well I have been messing around with this some more, but with little luck. I am plugged into my computer now using a serial to USB adapter. The drivers are installed for the adapter, and COM3 shows up. When I open LynxTerminal I setup with 115k baud with 8 bits, 1 stop bit, and no parity or flow control. I click connect and the light on the terminal turns green like it connected, but there is no response from the board. If i click firmware info, it is blank, suggesting that, in fact, it is not connected.
The green light on the SSC32 is on, so that has power. The jumpers are set to 115k, the two DB9 jumpers are in place, I have removed the VL=VS1 jumper because I have 5 volts coming in from a separate power supply, and have removed the VS1=VS2 jumper because I am only trying to use servos 0-15.
Is there a command like the equilavent to a “ping” to see if the microboard is even responding?
I don’t have near the experience that other do here with ssc-32 but I would try crossing the jumper for the logic to share the servo power. Then hook your 5 Volt power lead to the servo power for the first bank. I’m using this method with 7 Volts and have not had any problems.
I’m not sure you have a power problem though. If the servos twitch, you have servo power. If your green light is on, you have logic power. I believe when the SSC is receiving or sending information via the DB9 cable, it blinks rapidly. It would seem it’s not communicating with the PC.
And at that point, someone else will have to chime in. I’ve only used the SEQ and RIOS software with the SSC so I can’t help you with the lynxterminal. Someone here probably can though. Just wait for someone to chime in.
After the SSC-32 receives the first valid command, the power light will go off and from then on it will act as an activity indicator and be on only when the SSC-32 is receiving input. Otherwise, the LED will be OFF.
Try sending the ‘ver’ command. The power LED should go off and the SSC-32 should return the firmware version. If this does not happen, then there is still something wrong with your PC connection to the SSC-32.
Check the COM port baud rate in Control Panel -> System -> Hardware -> Device Manager. This should not make a difference, but sometimes it can if it does not match the speed you are using (115200 in this case).
There are issues with some USB->Serial adapters not working with the SSC-32 and its software. There is a sticky thread about this where problems can be posted for non working adapters and people can post what adapters work and in what configurations.
