E9 – Speed Range Error
OVERVIEW
During normal run time operation the value stored during auto calibration is used to initially set the speed (e.g. target speed = 12 MPH, PWM ticks = Maximum PWM = 363). Once the speed stabilized the actual speed is monitored and if different than the target speed the PWM value is adjusted until the actual speed matches the target speed. If the PWM value is changed by more than the amount of ticks required to change 0.8 MPH and the actual speed does not match the target speed then an E9 error is flagged. This error indicates the motor controller system is unable to maintain the target speed.
E9 Error
Before cycling power inspect the
motor controller for error
MotorY controller error
N
Start PWM ½ MAX test
Measure speed and compare to value displayed in time window
Record the error
code from the
motor controller
Check for free movement of belt roller movement
Cycle Power
Run auto
calibration
Done
OK | N | Perform steps outlined in speed |
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| feedback issue | |
|
| |
| Y |
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Run Auto Calibration |
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Error | N | Perform steps outlined in |
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Gone |
| speed control issue |
Y |
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Done |
| 38 |