User Manual

RoboClaw Series

Brushed DC Motor Controllers

RoboClaw Series User Manual

Voltage Clamp Setup and Testing

Open Ion Studio and set S5 to the Voltage Clamp option in the drop down and save the setting

before exiting the application (see user manual).

The circuit shown will need to be tuned for each application to properly dissipate the

regenerative voltages. Testing should consist of a running the motor up to 25% of its speed and

then quickly slowing down without braking or e-stop while checking the voltage spike. Repeat,

by increasing the speed and power by 5% and checking the voltage spikes again. Repeat this

process until 100% power is achieved without a major spike or until the voltage clamp is not

dissipating the voltage spikes. If over voltages are not completely clamped, either a lower Ohm

resistor is required or additional capacitance is required. Add a capacitor of 5000uF to 10000uF

or more across B+ and B-.