Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
dmc-60c:hardware-reference-manual [2019/01/11 18:52] – [4 Motor Controller LEDs] Thomas Kappenmandmc-60c:hardware-reference-manual [2019/01/11 18:54] – [6 Input Signal Calibration] Thomas Kappenman
Line 109: Line 109:
 ===== 5 Brake / Coast Mode ===== ===== 5 Brake / Coast Mode =====
  
-The DMC60C's response when a neutral duty cycle is applied to the output depends on the Brake / Coast setting. When the DMC60C is configured for Brake Mode, the M+ and M- leads are internally shorted when a neutral duty cycle is applied to the output, which causes an attached motor to resist rotation. If an attached motor is spinning, then its speed decreases at a much quicker rate than it would if the M+ and M- leads were allowed to float. When configured for Coast Mode, the M+ and M- leads float when a neutral duty cycle is applied to the output.+The DMC60C's response when a neutral duty cycle is applied to the output depends on the Brake/Coast setting. When the DMC60C is configured for Brake Mode, the M+ and M- leads are internally shorted when a neutral duty cycle is applied to the output, which causes an attached motor to resist rotation. If an attached motor is spinning, then its speed decreases at a much quicker rate than it would if the M+ and M- leads were allowed to float. When configured for Coast Mode, the M+ and M- leads float when a neutral duty cycle is applied to the output.
  
-The current Brake / Coast setting is displayed by the Brake / CAL LED, which is in the center of the triangle located at the center of the housing. When the device is operating in Brake Mode, the LED is illuminated Red. When the device is operating in Coast Mode, the LED is off. The Brake / Coast setting can be toggled by pressing down on the center of the triangle, then releasing the button.+The current Brake/Coast setting is displayed by the Brake/Coast CAL LED, which is in the center of the triangle located at the center of the housing. When the device is operating in Brake Mode, the LED is illuminated Red. When the device is operating in Coast Mode, the LED is off. The Brake/Coast setting can be toggled by pressing down on the center of the triangle, then releasing the button.
  
-The Brake / Coast setting is stored in non-volatile memory and is re-stored automatically after power cycles.+The Brake/Coast setting is stored in non-volatile memory and is re-stored automatically after power cycles.
  
-When the DMC60C is connected to a CAN bus the Brake / Coast setting may be overridden by the CAN control frame. When the Brake / Coast override is active the Brake / CAL LED is overridden to display the setting specified by the CAN control frame. During this time the DMC60C employs the Brake / Coast mode that is specified in the CAN frame when applying the neutral duty cycle to the output.+When the DMC60C is connected to a CAN bus the Brake/Coast setting may be overridden by the CAN control frame. When the Brake/Coast override is active the Brake/Coast CAL LED is overridden to display the setting specified by the CAN control frame. During this time the DMC60C employs the Brake/Coast mode that is specified in the CAN frame when applying the neutral duty cycle to the output.
  
 ---- ----
Line 123: Line 123:
  
 To perform calibration, follow these steps: To perform calibration, follow these steps:
-  * 1. Press and hold the Brake / CAL button. After approximately 5 seconds, the top and bottom LEDs will begin to alternate between Blue and Off. This indicates that calibration has started.+  * 1. Press and hold the Brake/Coast CAL button. After approximately 5 seconds, the top and bottom LEDs will begin to alternate between Blue and Off. This indicates that calibration has started.
   * 2. While continuing to hold the button, use the controller to move between full forward and full reverse (perhaps by moving a joystick), making sure to reach both extremes. This may be repeated more than once, but there is no required minimum.   * 2. While continuing to hold the button, use the controller to move between full forward and full reverse (perhaps by moving a joystick), making sure to reach both extremes. This may be repeated more than once, but there is no required minimum.
   * 3. Return the controller to neutral (return the joystick to the neutral position).   * 3. Return the controller to neutral (return the joystick to the neutral position).
-  * 4. Release the Brake / CAL button.+  * 4. Release the Brake/Coast CAL button.
   * 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.   * 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.
  
Line 133: Line 133:
 To restore default calibration: To restore default calibration:
   * 1. Disconnect the power source from the DMC60C.   * 1. Disconnect the power source from the DMC60C.
-  * 2. Hold the Brake / CAL button down.+  * 2. Hold the Brake/Coast CAL button down.
   * 3. While continuing to hold the button, apply power to the DMC60C.   * 3. While continuing to hold the button, apply power to the DMC60C.
   * 4. Continue holding down the button until the top and bottom LEDs alternate quickly between Green and Off.   * 4. Continue holding down the button until the top and bottom LEDs alternate quickly between Green and Off.
-  * 5. Release the Brake / CAL button.+  * 5. Release the Brake/Coast CAL button.
  
 **Note:** //This will also restore all DMC60C settings to their factory default state.// **Note:** //This will also restore all DMC60C settings to their factory default state.//