umbratek ADRA HR Series, User Manual

Page: 43 / 52

EN Ver. 0.2.0
43 / 52 © 2022 Umbratek All Rights Reserved.
Electrical
Regenerative Braking Module
When the actuator is in deceleration motion, the kinetic energy is converted into electrical energy to
charge the capacitor of the actuator. The higher the deceleration rate and the higher the load, the
higher the charging power. When the power supply voltage increases and exceeds the maximum
operating voltage of the driver, the actuator will report an error and stop working. In this situation, we
recommend you to use Regenerative Braking Module here, or you can choose the following treatment
scheme according to the actual situation.
1. Regenerative Braking Module
A Regenerative Braking Module is added to the DC power of the actuator, which will detect the voltage
of the power in real time. When the voltage of the power supply is higher than the rated voltage, the
part of excessive energy will be released through the brake resistance, and so the voltage is stabilized.
The module is available for purchase at the Umbratek website.
2. Use Battery Power
Battery can absorb the excessive power and thus to stabilize the voltage.
3. Adding a Supercapacitor
The supercapacitor is added to the power of the actuator to absorb the excessive electric energy by
charging, thus to stabilize the voltage. Note: The capacity of the capacitor must be calculated based on
actual situations.
Brake
The default actuator of ADRA series is equipped with brake module, and the locking torque of the
brake is greater than the rated torque of the actuator. Do not use external forces to try to rotate the
actuator when the brake is locked, otherwise it may damage the actuator.