Regenerative Energy Absorption With An External Regeneration Resistor - Omron R88D-KTA5L User Manual

4-4 Regenerative Energy Absorption

Regenerative Energy Absorption with an External Regeneration Resistor

If the regenerative energy exceeds the regeneration absorption capacity of the Servo Drive,
connect an External Regeneration Resistor.
Connect the External Regeneration Resistor between B1 and B2 terminals on the Servo Drive.
Double-check the terminal names when connecting the resistor because the drive may be
damaged if connected to the wrong terminals.
The External Regeneration Resistor will heat up to approx. 120°C. Do not place it near
equipment and wiring that is easily affected by heat. Attach radiator plates suitable for the heat
radiation conditions.
External Regeneration Resistor
Characteristics
4
R88A-
RR08050S
R88A-
RR080100S
R88A-
RR22047S1
R88A-
RR50020S
4-57
Resistance Nominal
Model
value capacity
50 Ω
80 W
100 Ω
80 W
47 Ω
220 W
20 Ω
500 W
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Regeneration Heat
absorption for 120°C radiation
temperature rise condition
Aluminum
350 × 350,
20 W
Thickness: 3.0
Aluminum
350 × 350,
20 W
Thickness: 3.0
Aluminum
350 × 350,
70 W
Thickness: 3.0
Aluminum
600 × 600,
180 W
Thickness: 3.0
Thermal switch output
specifications
Operating temperature:
150°C ± 5%
NC contact
Rated output (resistive
load): 125 VAC, 0.1 A max.
30 VDC, 0.1 A max.
(minimum current: 1 mA)
Operating temperature:
150°C ± 5%
NC contact
Rated output (resistive
load): 125 VAC, 0.1 A max.
30 VDC, 0.1 A max.
(minimum current: 1 mA)
Operating temperature:
150°C ± 5%
NC contact
Rated output (resistive
load): 250 VAC, 0.2 A max.
42 VDC, 0.2 A max.
(minimum current: 1 mA)
Operating temperature
200°C ± 7°C
NC contact
Rated output (resistive
load): 250 VAC, 0.2 A max.
42 VDC, 0.2 A max.
(minimum current: 1 mA)