Received the HMI programmer and have not been able to serially connect to a HSR-5990TG servo. The HSR-5990TG is listed as a supported servo; I have tried two servos with no luck.
The program to adjust servo parameters provides com port selection, connection time (high, medium, low) and a connect button; pressing the connect button results in a message box displaying āno connectionā.
The HMI programmer CD contains another program written in VB with source code that allows you to control servo position and read feedback parameters current and voltage. The VB program does serially connect with the servo and enables control of servo movement by serial commands but fails to read current and voltage.
The supplied connection cable for servo, power, and DB9 RS232 is wired differently then the supplied schematic. I may try making up a cable that matches the schematic to see if that works.
Has anyone else tried the HMI programmer kit and what results have you had?
Found the problem. . . The schematic shows a 3.3K Ohm resistor wired between TX and RX. The supplied cable had 3.3 Ohm resistor, changed it to 3.3K Ohms and all works well
With cable working correctly I tried the VB program that enables servo movement and feedback of voltage and current. It seems that you can read the voltage and current while the servo is moving The programming of servo parameters also works well.
Discovered reading voltage and current briefly interrupts servo motion and you can hear a tick sound whenever reading parameters during movement. Decided to control servos using pulse width and measure current using a resistor rather then using RS232 interface. Programmer works great for matching dual motor servos like the shoulder of SES arm.
Are you using a USB adapter to connect to the HMI cable? If you are, which one?
Iām currently trying to get more information from Korea to see if there has been a change to the cable. When I get some more information, Iāll post it here.
Just so you know, when I tried one of the cables with an off-brand adapter I purchased in Korea, it didnāt work either, but when I tried it with a Belkin adapter, no problem.
I think SL said it wouldnāt work till he changed the resistor from 3.3ohm to 3.3kohm. So it looks as if a catastrophic failure has occured during the assembly of this batch of cables.
Um, the factory is apparently still making this mistake?
I just got the HMI cable today, it wouldnāt connect for me either, and after opening it up, I too have a 33 ohm inside. Also, pins 8 and 7 arenāt connected for me either like they should be in the schematic.
Now I am going to hope I am lucky and happen to have a 3.3k lying aboutā¦
So it looks as if a catastrophic failure has occured during the assembly of this batch of cables.