Chapter 2 Installation and Storage
2.7 Regenerative Resistors
Built-in Regenerative Resistor
When the output torque of servo motor in reverse direction of motor rotation speed, it
indicates that regenerative power has returned from the load to the servo drive. This
power will be transmitted into the capacitance of the DC Bus and result in rising voltage.
When the voltage rises too high, the servo system need to dissipate the extra energy by
using a regenerative resistor. The ASDA-A2 series servo drive provides a built-in
regenerative resistor which is equipped as standard (400W~5.5kW models only). Users
can also connect an external regenerative resistor if more regenerative capacity is needed.
The following table shows the specifications of the servo drive’s built-in regenerative
resistor and the amount of regenerative power (average value) that it can process.
220V Series
Specifications of Built-in Regenerative Resistors
Servo Drive
(kW)
Resistance
(Ohm)
(Parameter
P1-52)
Capacity (Watt)
(Parameter
P1-53)
Regenerative Power
processed by built-in
regenerative resistor
(Watt) *
1
Min. Allowable
Resistance
(Ohm)
0.1 - - - 30
0.2 - - - 30
0.4 - - - 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 - - - 8
400V Series
Specifications of Built-in Regenerative Resistors
Servo Drive (kW)
Resistance (Ohm)
(Parameter P1-52)
Capacity (Watt)
(Parameter P1-53)
Min. Allowable
Resistance (Ohm)
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
Revision January 2011 2-13
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales
To Next Page
Loading...
Need help?
General
