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Limits are typically set to protect the controller hardware, the motor, or other system elements from damage. They should only be changed by a knowledgeable system engineer. It is usually best to change them incrementally and observe the result before continuing.


The following should be considered when setting up a new system:

  • Nominal battery voltage
  • Undervoltage warning limit
  • Severe undervoltage (shutdown) limit. Note that the controller will not power on unless input voltage is at least as high as the shutdown limit.
  • High Voltage Limit determines when the controller protects itself against unsually high input voltage.


The controller can cut back power to protect the hardware from damage due to over-temperature. Refer to:


Configuration of controller current limits is not yet part of this documentation


When the controller is able to measure motor RPM (eg brushless motors) it can implement an RPM limit.