Digilent DMC60C Manual de referência - Página 8

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3. Return the controller to neutral (return the joystick to the neutral position).

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4. Release the Brake/Coast CAL button.

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5. If calibration was successful, then the top and bottom LEDs will quickly alternate between

Green and Off and the new calibration constants will be stored in non-volatile memory. If

calibration failed, then the top and bottom LEDs will quickly alternate between Red and Off

and the device will continue to operate using the existing calibration constants.

Note: Calibration may only be performed while a servo input signal is present.

To restore default calibration:



1. Disconnect the power source from the DMC60C.



2. Hold the Brake/Coast CAL button down.

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3. While continuing to hold the button, apply power to the DMC60C.

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4. Continue holding down the button until the top and bottom LEDs alternate quickly between

Green and Off.

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5. Release the Brake/Coast CAL button.

Note: This will also restore all DMC60C settings to their factory default state.

7 Internal Temperature Monitoring and Over Temperature Protection

The DMC60C features an onboard thermistor, which allows the temperature of the circuit board to

be continuously monitored. When the motor controller detects that the temperature of the circuit

board has exceeded 70°C it will begin to decrease the duty cycle of the output. Additionally, the color

of the LED indicators will be changed to Cyan (forward) or Fuchsia (reverse) to indicate that the

device is operating in reduced duty cycle mode. As the temperature continues to rise, the duty cycle

will be further reduced at a rate of approximately 2.85% per degree C until the temperature of the

PCB exceeds 100°C, at which point the output duty cycle will be set to 0% and an over temperature

fault is signaled. The motor controller will continue to operate with a decreased duty cycle until the

temperature of the PCB falls below 70°C, at which point, it will resume outputting the duty cycle that

corresponds to the input signal.

8 Input Voltage Monitoring and Under Voltage Protection

The DMC60C continuously monitors the input voltage. If the input voltage falls below 5.75 Volts (+/-

2%) for 5 or more seconds, then the output duty cycle will be set to 0% and an under voltage fault is

signaled. The output will remain disabled until the fault is cleared (3 seconds), at which point it may

be re-enabled if the under-voltage condition is no longer present.