Delta Electronics ASDA-B2 series User Manual page 33

Chapter 2 Installation and Storage
(2) Simple Calculation Method
The users can select the adequate regenerative resistors according to the allowable
frequency required by actual operation and the allowable frequency when the servo motor
runs without load. The allowable frequency when the servo motor run without load is the
maximum frequency that can be operated during continuous operation when servo motor
accelerate from 0r/min to rated speed and decelerate from rated speed down to 0r/min.
The allowable frequencies when the servo motor run without load are summarized in the
following table.
Allowable Frequencies for Servo Motor Running Without Load (times/min)
Motor Capacity
ECMA Series
ECMAC
ECMAE
ECMAG
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.
Allowable fr equency =
m = load/motor inertia ratio
The users can select the adequate regenerative resistors according to the allowable
frequency by referring to the table below:
Allowable Frequencies for Servo Motor Running Without Load (times/min)
Motor Capacity
Regenerative Resistor
200W 80Ω
400W 40Ω
1kW 30Ω
2-12
info@varitel.com - www.varitel.com - Tel. (54) 11-4243-1171 / Fax: (54) 11-4292-7545
Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.
VARITEL INGENIERIA ELECTRONICA S.A.
When Using Built-in Regenerative Resistor
600W 750W 900W
06 07 09
- 312 -
- - -
42 - 31
Allowable frequency when serv o motor run without load
m + 1
When Using External Regenerative Resistor
100W 200W
01 02
32793 6855
- -
- -
1.0kW 1.5kW 2.0kW
10 15
137 -
42 32
(F130)
- -
ECMA□□C
400W 400W
750W
(F60) (F80)
04 04 07
4380 1784 1074
- -
- -
ASDA-B2
2.0kW 3.0kW
20 20 30
83
-
(F100)
24 10
11
(F180)
- - -
2
times
Rated s peed
x
mi n.
Operating speed
1.0kW 2.0kW
10 20
458 273
- 916 545
- - 1363
Revision September 2013