Chapter 6 Control Modes of Operation|ASDA-A&A+ Series
Revision April 2009 6-43
ASDA-A+ Series
Allowable frequency when the servo motor run without load (times/min)
and uses built-in regenerative resistor
3.0kW 3.5KW 4.5kW
Motor Capacity
Servo Motor
30 35 45
ECMA Series 11 11 8
When the servo motor runs with load, the allowable frequency will change according to the changes of
the load inertia and rotation speed. Use the following equation to calculate the allowable frequency.
Allow able fr equen cy =
Allowable frequency when servo motor run without load
m + 1
x
Rate d s peed
Operating speed
times
min.
2
m = load/motor inertia ratio
The users can select the adequate external regenerative resistors according to the allowable frequency
by referring to the table below:
ASDA-A Series
Allowable frequency when the servo motor run without load (times/min)
and uses external regenerative resistor
ASMTL
100W 200W 400W 750W 1.0kW 1.5kW 2.0kW 3.0kW
Motor Capacity
Recommended
Regenerative Resistor
Specifications
01 02 04 07 10 15 20 30
400W 40Ω - - 7137 2247 933 674 - -
1kW 20Ω - - - - 2333 1685 1291 523
Allowable frequency when the servo motor run without load (times/min)
and uses external regenerative resistor
ASMTM
1.0kW 1.5kW 2.0kW 3.0kW
Motor Capacity
Recommended
Regenerative Resistor
Specifications
10 15 20 30
400W 40Ω 913 621 - -
1kW 20Ω 2282 1552 863 315
ASDA-A+ Series
Allowable frequency when the servo motor run without load (times/min)
and uses external regenerative resistor
ECMA Series
3.0kW 3.5KW 4.5kW
Motor Capacity
Recommended
Regenerative Resistor
Specifications
30 35 45
3kW 10Ω 331 331 234
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales
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