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4 System Design
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
4-5 R
egen
erative En
ergy Ab
sorp
tion
4
4-
5-4 C
onnecting a
n Exter
nal Regener
ation
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.
Precautions for Safe Use
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
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R