Regenerative Energy Absorption With An External Regeneration Resistor - Omron R88D-KN01L-ECT-L User Manual

Ac servomotors/servo drives g5-series with built-in ethercat communications linear motor type r88l-ec series; r88d-kn*-ect-l series
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4 System Design
4-5-3
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 approximately 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.
Model
R88A-RR08050S
R88A-RR080100S
R88A-RR22047S1
R88A-RR50020S
4 - 50
The amount of
regeneration
Resistance
Nominal
absorption for
value
capacity
120°C
temperature rise
50 Ω
80 W
20 W
100 Ω
80 W
20 W
47 Ω
220 W
70 W
20 Ω
500 W
180 W
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
Heat
Thermal switch output
radiation
specifications
condition
Aluminum
Operating temperature: 150°C ±5%
350 × 350,
NC contact
Thickness:
Rated output (resistive load)
3.0
125 VAC, 0.1 A max.
30 VDC, 0.1 A max.
(minimum current: 1 mA)
Aluminum
Operating temperature: 150°C ±5%
350 × 350,
NC contact
Thickness:
Rated output (resistive load)
3.0
125 VAC, 0.1 A max.
30 VDC, 0.1 A max.
(minimum current: 1 mA)
Aluminum
Operating temperature: 150°C ±5%
350 × 350,
NC contact
Thickness:
Rated output (resistive load)
3.0
250 VAC, 0.2 A max.
42 VDC, 0.2 A max.
(minimum current: 1 mA)
Aluminum
Operating temperature: 200°C ±7°C
600 × 600,
NC contact
Thickness:
Rated output (resistive load)
3.0
250 VAC, 0.2 A max.
42 VDC, 0.2 A max.
(minimum current: 1 mA)

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