Chapter 2 Installation ASDA-M
2-12 Revision December, 2014
0r/min to the rated speed and then decelerates from the rated speed to 0r/min. The
following table lists the allowable frequency of built-in regenerative resistor 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
600W 750W 900W 1.0kW 1.5kW
06 07 09 10 15
ECMA□□C
- 312 - 137 -
ECMA□□E
- - - 42 32
ECMA□□G
42 - 31 - -
When the servo motor runs with load, the allowable frequency will be different
according to different load inertia or speed. The following is the calculation method.
m represents load / motor inertia ratio.
Allowable frequency =
Allowable frequency when servo motor run without load
m + 1
x
Rated speed
Operating speed
times
min.
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.
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