ORIENTAL - BRAKE REGENERATION

When a conductor is moved through lines of magnetic flux, current is induced onto the conductor thus generating current. When a motor is back-driven by external power, this theory applies, and the motor actually becomes a power generator. If enough regenerative power is generated and it exceeds the rated value of the driver's components, damage may occur.

Since the AR series motors are much more power efficient than other motors, it actually generates more regenerative power. There is nothing to worry about since the AR series driver will generate an overvoltage alarm if it senses an increase in back EMF from the motor, and it will stop operation to prevent damage to the driver's components.

A regeneration unit such as the RGB100 (50W, 150 ohms) or RGB200 (200W, 50 ohms) is recommended when you are:
-direct-driving a load in the vertical direction,
-driving a large inertial load, or
-starting or stopping the motor abruptly.

These are the instances where regenerative power could be generated by the motor, and it needs to be dissipated with the regeneration unit. It also does depends on other factors such as inertia mismatch ratio (between load inertia to rotor inertia) and speed. AR motors using a linear actuator most likely won't need a regen unit even if it's vertical.

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