Delta ASD-A2-5523 Series - 2.7 Selection of Regenerative Resistor

Chapter 2 Installation ASDA-A2
Revision February, 2017 2-9
2.7 Selection of Regenerative Resistor
When the direction of pull-out torque is different from the rotation, it means the electricity is sent
back to the servo drive from the load-end. It becomes the capacitance of DC Bus and increases
the voltage. When the voltage increases to a specific value, the come-back eletricity can only be
consumed by regenerative resistor. There is a built-in regenerative resistor in the servo drive.
Users can also use the external regenerative resistor if needed.
Specification of built-in regenerative resistor provided by ASDA-A2 220V Series
Servo Drive
(kW)
Specification of built-in regenerative
resistor
*
1
The capacity of built-
in regenerative resistor
(Watt)
Minimum allowable
resistance (Ohm)
Resistance
(P1-52) (Ohm)
Capacity
(P1-53) (Watt)
0.1 - - - 30
0.2
- - - 30
0.4
40 40 20 30
0.75 40 60 30 20
1.0 40 60 30 20
1.5 40 60 30 20
2.0 20 100 50 10
3.0 20 100 50 10
4.5 20 100 50 10
5.5 - - - 8
7.5 - - - 5
11 - - - 8
15 - - - 5
Specification of built-in regenerative resistor provided by ASDA-A2 400V Series
Servo Drive
(kW)
Specification of built-in regenerative
resistor
Minimum allowable
resistance (Ohm)
Resistance
(P1-52) (Ohm)
Capacity
(P1-53) (Watt)
0.75 80 100 60
1.0 80 100 60
1.5 80 100 40
2.0 - - 40
3.0 - - 30
4.5 - - 20
5.5 - - 20
7.5 - - 15