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4-4 Regenerative Energy Absorption
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4
System Design
Driver Regeneration Absorption Capacity
Amount of Internal Regeneration Absorption in Drivers
This driver absorbs regenerative energy internally with built-in capacitors.
If the regenerative energy is too large to be processed internally, an overvoltage error occurs
and operation cannot continue.
The following table shows the regenerative energy (and amount of regeneration) that each
driver can absorb. If these values are exceeded, take the following processes.
Connect an External Regeneration Unit. (Regeneration process capacity improves.)
Reduce the operating rotation speed. (The amount of regeneration is proportional to the square of the rotation speed.)
Lengthen the deceleration time. (Regenerative energy per unit time decreases.)
Lengthen the operation cycle, i.e., the cycle time. (Average regenerative power decreases.)
Servo Drive model
Regenerative
energy (J) that can
be absorbed by
internal capacitor
Internal regeneration
resistance
Minimum value
of regeneration
resistance (
Ω
)
Average amount of
regeneration that can
be absorbed (W)
R88D-KTA5L
16
−
17
R88D-KT01L
16
−
17
R88D-KT02L
22
−
17
R88D-KT04L
32
17
13
R88D-KT01H
25
−
34
R88D-KT02H
25
−
34
R88D-KT04H
36
−
34
R88D-KT08H
62
12
25
R88D-KT10H
99
18
25
R88D-KT15H
99
18
25
R88D-KT20H
99
72
10
R88D-KT30H
150
60
7
R88D-KT50H
150
60
5
R88D-KT06F
128
21
100
R88D-KT10F
128
21
100
R88D-KT15F
128
21
100
R88D-KT20F
128
29
40
R88D-KT30F
285
60
40
R88D-KT50F
285
60
29