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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-
5-2 Ser
v
o D
rive R
egener
ation Absor
ption
Capacity
The following table shows the regenerative energy (and amount of regeneration) that each drive can
absorb. If these values are exceeded, take the processes described above.
Regenerative energy to be absorbed by built-in capacitor varies depending on the input voltage to the
main circuit power supply for the Servo Drive. The above value for each Servo Drive model is calculated
when the input voltage is as follows.
4-5-2
Servo Drive Regeneration Absorption Capacity
Servo Drive model
Regenerative energy to be
absorbed by built-in
capacitor Ec [J]
Internal regeneration
resistor
Allowable
minimum
regeneration
resistance [
Ω
]
Average amount of
regenerative energy to
be absorbed [W]
R88D-KN01L-ECT-L
11
–
17
R88D-KN02L-ECT-L
15
–
17
R88D-KN04L-ECT-L
22
17
13
R88D-KN01H-ECT-L
18
–
34
R88D-KN02H-ECT-L
18
–
34
R88D-KN04H-ECT-L
26
–
34
R88D-KN08H-ECT-L
46
12
25
R88D-KN10H-ECT-L
74
18
25
R88D-KN15H-ECT-L
74
18
25
R88D-KN06F-ECT-L
64
21
100
R88D-KN10F-ECT-L
64
21
100
R88D-KN15F-ECT-L
64
21
100
R88D-KN20F-ECT-L
64
29
40
R88D-KN30F-ECT-L
106
60
40
Servo Drive model
Main circuit power supply input voltage
R88D-KN
L-ECT-L
100 VAC
R88D-KN
H-ECT-L
200 VAC
R88D-KN
F-ECT-L
400 VAC