Selecting The Regenerative Resistor - Delta ASDA-A3 Series User Manual

ASDA-A3 Installation

2.8 Selecting the regenerative resistor

Some of our servo drive models has a built-in regenerative resistor, you can use an external
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regenerative resistor if needed. When the direction of torque is opposite to the direction of
rotation, the energy generated returns to the servo drive from the load. This energy is turned
into electricity in the capacitance of the DC Bus and thus increases the voltage. When the
voltage reaches a given value, the excess energy is consumed by a regenerative resistor. Refer
to the following table to select the suitable regenerative resistor.
(1) Moving direction of the object; (2) Direction of torque; (3) Regenerative energy
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