Chapter 2 Installation
ASDA-A2R Series
Revision December, 2014
2-11
according to different load inertia or speed. The following is the calculation method.
m represents load / motor inertia ratio.
Allowable fr equency =
Allowable frequency w hen serv o motor run w ithout load
m + 1
x
Rated s peed
Operating speed
times
mi n.
2
The comparison table of external regenerative resistor is provided below. Please
choose the appropriate regenerative resistor according to the allowable frequency.
The table below describes the suggested allowable frequency (times/min) of
regenerative resistor when the servo drive runs without load.
Allowable frequency of regenerative resistor when the servo drive runs without load
(times/min)
Motor Capacity
Corresponding
Motor
ECMA
□ □
C
100 W 200 W
400 W
(F60)
400 W
(F80)
750 W 1.0 kW 2.0 kW
01
02
04
04
07
10
20
BR400W040 (400 W 40
Ω
) -
- 8608
3506
2110 925 562
BR1K0W020 (1 kW 20
Ω
)
-
-
-
8765 5274 2312 1406
Motor Capacity
Corresponding
Motor
ECMA
□ □
E
0.5 kW
1 kW
1.5 kW
2.0 kW
(F130)
2.0 kW
(F180)
3.0 kW
05
1.0
15
20
20
30
BR400W040 (400 W 40
Ω
) 291
283
213
163
68
-
BR1K0W020 (1 kW 20
Ω
) 729 708 533 408 171 -
BR1K5W005 (3 kW 10
Ω
)
- - - - -
331
Motor Capacity
Corresponding
Motor
ECMA
□ □
F
3.0 kW
30
BR1K5W005 (3 kW 10
Ω
) 331
Allowable frequency of regenerative resistor when the servo drive runs without load
(times/min)
