Question about SDC controllers

9 years 2 months ago #29525781 by JAm1
Hi I\'m planning to get an SDC controllers for my project. But i have some questions that i want to ask before buying.
Please forgive me if my questions sound a bit noob. I\'m new in this motion control business :p

1. In position control mode when the motor gets to the desired position, will it hold the position and try to resist any torque applied to it?

2. If I\'m to operate my motor at its no load speed ungeared say around 5000rpm, can the controller still provide good position control?

3. Can I do position control with more than one revolution of the motor? for example i\'d like my motor to position 2000 degrees from reference position?

4. Can I have separate PID gains for the 2 motors(the motors might carry different loads)? the SDC datasheet says this is possible but the roboteq user manual says otherwise

5. Can i combine speed and position control on a single motor?

Thank you very much! :)

Please Log in or Create an account to join the conversation.

9 years 2 months ago #29525783 by roboteq
Replied by roboteq on topic Re:Question about SDC controllers
1- when stopped, the position will be held. Beware that this means power consumption

2- position mode works up to the maximum speed

3- position is based on encoder count. That can be any number of turns

4- PID parameters are set for each motor separately

5- In position mode, you determine the end position, and the acceleration, speed, and deceleration to get there.

Please Log in or Create an account to join the conversation.

9 years 2 months ago #29525785 by JAm1
Thanks!

Please Log in or Create an account to join the conversation.

9 years 2 months ago #29525791 by JAm1
Hi just a follow up question regarding holding the position of the motor and power consumption. Correct me if im wrong but the current draw of the motor while holding the position will still be dependent upon the load that it carries so obviously it wont be drawing the stall current to hold the hold the position right?

Please Log in or Create an account to join the conversation.

9 years 2 months ago #29525793 by roboteq
Replied by roboteq on topic Re:Question about SDC controllers
Current will be very low or null on a flat surface. Higher on a slope.

Please Log in or Create an account to join the conversation.

9 years 2 months ago #29525795 by JAm1
oh ok thanks. that answered my question. Although I wont be using the controller for a wheeled robot. I\'m gonna use it to make robot links. like an arm for example

Please Log in or Create an account to join the conversation.

Moderators: tonysantoni
Time to create page: 0.122 seconds