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4 System Design
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
4-5 Regenerative Energy Absorption
4
4-5-4 Connecting an External Regeneration Resistor
*1 Select a combination that has an absorption capacity greater than the average regeneration power [Pr].
*2 Do not use a combination with resistance values lower than the allowable minimum regeneration resistance of each drive.
For information on the allowable minimum regeneration resistance, refer to 4-5-2 Servo Drive Regeneration Absorption
Capacity on page 4-49.
Surface temperatures on regeneration resistance can reach 200°C.
Do not place objects that tend to catch fire nearby. To prevent people from touching them, install
a cover that enables heat dissipation.
Combining External Regeneration Resistors
Regeneration
absorption
capacity
*1
20 W 40 W 70 W 140 W
Model R88A-RR08050S
R88A-RR080100S
R88A-RR08050S
R88A-RR080100S
R88A-RR22047S
R88A-RR22047S1
R88A-RR22047S
R88A-RR22047S1
Resistance
value
*2
50 Ω/100 Ω 25 Ω/50 Ω 47 Ω 94 Ω
Connection
method
Regeneration
absorption
capacity
*1
140 W 280 W 560 W
Model R88A-RR22047S
R88A-RR22047S1
R88A-RR22047S
R88A-RR22047S1
R88A-RR22047S
R88A-RR22047S1
Resistance
value
*2
23.5 Ω 47 Ω 23.5 Ω
Connection
method
Regeneration
absorption
capacity
*1
180 W 360 W 1,440 W
Model R88A-RR50020S R88A-RR50020S R88A-RR50020S
Resistance
value
*2
20 Ω 10 Ω 10 Ω
Connection
method
R
R
R
R
R
RR
RR
RR
RR
R
R
RR
RR
RR
RR