- The issue is likely due to a rigid connection between the DC motor and the mechanical load (unbalanced load).
- This rigid setup can cause initialization errors in Simscape because the solver struggles with perfectly stiff systems.
- To fix this, you can add compliance by inserting a "Rotational Spring" and "Rotational Damper"
- Connect these between the motor's R port and the unbalanced load.
- This will allow some mechanical flexibility and help the solver initialize the system correctly.
For more information on this you can refer to the below links and also the examples mentioned:
