Chapter 2 Installation
ASDA-A2R Series
2-10
Revision December, 2014
馬 達 轉 速
外 部 負 載 扭 矩
馬 達 輸 出 扭 矩
馬 達 輸 出 負 功
正 功
負 功
正功
Negative torque: TL × Wr TL: external load torque
For safety reasons, please calculate it by considering the safest situation.
For example, when the external load torque is the +70% rated torque and the rotation
reaches 3000 r/min, then take 400 W (the rated torque is 1.27 Nt-m) as the example,
the user has to connect the regenerative resistor of 40
, which is 2 × (0.7× 1.27) ×
(3000 × 2 ×
π
／
60) = 560W.
(2) Simple
Selection
Choose the appropriate regenerative resistor according to the allowable frequency
and empty load frequency in actual operation. The so-called empty allowable
frequency is the frequency of continuous operation when the servo motor runs from
0r/min to the rated speed and then decelerates from the rated speed to 0r/min within
the shortest time. The following table lists the allowable frequency when the servo
drive runs without load (times/min).
Allowable frequency of built-in regenerative resistor when the servo drive runs without load
(times/min)
Motor Capacity
Corresponding
Motor
600 W 750 W 900 W 1.0 kW 1.5 kW 2.0 kW 2.0 kW 3.0 kW 11 kW 15 kW
06
07
09
10
15
20
20
30
1B
1F
ECMA
□ □
C
- 312 - 137 -
83
(F100)
- - - -
ECMA
□ □
E
- - - 42 32
24
(F130)
10
(F180)
11 - -
ECMA
□ □
F
- - - - - - - 11 - -
ECMA
□ □
G
42 - 31 - - - - - - -
ECMA
□ □
L
- - - - - - - - - -
When the servo motor runs with load, the allowable frequency will be different
Motor Speed
External Load Torque
Motor Output Torque
Positive
torque
Positive
torque
Negative
torque
Negative
torque
