Omron ACCURAX G5 - Driver Regeneration Absorption Capacity

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4-4 Regenerative Energy Absorption
Accurax G5 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-KT08H62 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 28560 40
R88D-KT50F 28560 29