Specifications

CT Corsair Final Report May 2, 2014
7
The following points outline the general workflow of the primary servo/induction installation
and design process.
- Repair Induction motors
- Write, test and demonstrate system control code program for induction motors
- Servo drive factory fault clearance
- Factory reset via high-level access code
- Commissioning software installation
- Commissioning software comprehension
- Commissioning software parameter refinement
- Servo actuator tuning
- Demonstrate one time actuator shaft control with microcontroller
- Establish automatic data uploading
- Recode servo encoder feedback adjustments
- Install and incorporate limit switch flags to code
- Install and incorporate variable voltage potentiometer feedback for induction motors
- Component mounting and soldering
- Final kinematic model testing
The following points outline the alternative three induction motor design plan.
- Repair Induction motors
- Clean and fix up third induction motor: stator, housing and gaskets
- Wire and install Yaskawa VFD
- Modify relay switching circuit with extra relays and wirings
- Write, test and demonstrate system control code program for one induction motor
- Microcontroller code duplication
- Install and incorporate limit switch flags to code
- Install and incorporate variable voltage potentiometer feedback for induction motors
- Component mounting and soldering
- Final kinematic model testing
3.2.1 Clarifications on Induction vs. Servo Systems
Induction motors are controlled using VFDs to vary
input signal frequencies. This changes the motor shaft’s
output speed and torque. Induction motors require
separate encoders on the output shaft to get position
feedback. Thus, position control is more difficult using
induction motors. The current Nord motor position
encoder is shown in Figure 6.
F
F
i
Figure 6. Induction Motor Encoder