P Flashcards
What does the motor speed sensor provide feedback on?
The speed of the variable drive motors
Each motor has its own motor speed sensor.
Why does the controller require feedback from the motor speed sensor?
To determine if the desired motor RPM is being achieved
Where is the motor speed sensor coupled?
Directly to the motor shaft outboard from the drive sprocket
What rotates with the motor shaft inside the motor speed sensor?
A disc with 360 slots machined into it
What happens as each slot of the disc passes by the sensor pickup?
The sensor output voltage switches from 12 V to 0 V once for every slot
How does the controller interpret the sensor output signal?
As a digital input signal to determine shaft RPM
What does the controller compare the sensor signal frequency to?
The commanded RPM
What action can the controller take if the actual RPM does not match the commanded RPM?
Adjust the flow valve to ensure the speeds match
Fill in the blank: The motor speed sensor has _______ slots machined into its disc.
360
True or False: Each motor speed sensor provides feedback to the variable drive controller.
True
