Regenerative Energy Absorption With An External Regeneration Resistor - Omron OMNUC G5 Series 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 surface of the External Regeneration Resistor will heat up to approx. 200°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-
RR22047S
R88A-
RR50020S
4-35
Resistance Nominal
Model
value capacity
50 Ω
100 Ω
47 Ω
20 Ω
OMNUC G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
The amount of
regeneration
absorption for
120°C
temperature rise
80 W 20 W
80 W 20 W
220 W 70 W
500 W 180 W
Heat
Thermal switch
radiation
output specifications
condition
Operating temperature:
150°C ± 5%
Aluminum
250 × 250, NC contact
Thickness: 3.0 Rated output: 30 VDC,
50 mA max.
Operating temperature:
150°C ± 5%
Aluminum
250 × 250,
NC contact
Thickness: 3.0 Rated output: 30 VDC,
50 mA max.
Operating temperature:
Aluminum 170 ± 7°C
350 × 350,
NC contact
Thickness: 3.0 Rated output: 250
VAC, 0.2 A max.
Operating temperature:
200 ± 7°C
Aluminum
NC contact
600 × 600,
Rated output: 250
Thickness: 3.0
VAC, 0.2 A max.
24 VDC, 0.2 A max.