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4-4 Regenerative Energy Absorption
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
4
System Design
Servo Drive Regeneration Absorption Capacity
Amount of Internal Regeneration Absorption in Servo Drives
This
Servo Drive
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
drive 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
absorbable by built-in
capacitor (J)
Internal regeneration
resistor
Allowable
minimum
regeneration
resistance (
)
Average amount of
regenerative energy
absorbable (W)
R88D-KNA5L-ML2
16
17
R88D-KN01L-ML2
16
17
R88D-KN02L-ML2
22
17
R88D-KN04L-ML2
32
17
13
R88D-KN01H-ML2
25
34
R88D-KN02H-ML2
25
34
R88D-KN04H-ML2
36
34
R88D-KN08H-ML2
62
12
25
R88D-KN10H-ML2
99
18
25
R88D-KN15H-ML2
99
18
25
R88D-KN20H-ML2
99
72
10
R88D-KN30H-ML2
150
60
7
R88D-KN50H-ML2
150
60
5
R88D-KN06F-ML2
128
21
100
R88D-KN10F-ML2
128
21
100
R88D-KN15F-ML2
128
21
100
R88D-KN20F-ML2
128
29
40
R88D-KN30F-ML2
285
60
40
R88D-KN50F-ML2
285
60
29
