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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
13.9.2 Regenerative option
CAUTION
The specified combinations of regenerative options, converter unit and drive unit
may only be used. Otherwise, a fire may occur.
POINT
The calculation method of regenerative energy is the same as that for servo
amplifiers with 22kW or less. Refer to section 11.2 (2).
(1) Combination and regenerative power
The regenerative power values in the table are the regenerative power of the resistor and are not the rated
power.
Regenerative Power [W]
Converter unit Drive unit
MR-RB139
(1.3
)
(Note 1) Three
MR-RB137
(1.3
) in parallel
MR-RB136-4
(5
)
(Note 2) Three
MR-RB138-4
(5
) in parallel
MR-J3-DU30KB
MR-J3-CR55K
MR-J3-DU37KB
1300 3900
MR-J3-DU30KB4
MR-J3-DU37KB4
MR-J3-CR55K4
MR-J3-DU45KB4
MR-J3-DU55KB4
1300 3900
Note. 1. The composite resistor value of three options is 1.3 . The resistor value of one option is 4 .
2. The composite resistor value of three options is 5
. The resistor value of one option is 15 .
(2) Parameter setting
POINT
Always set parameter No.PA02 of the drive unit to “ 00”(Not used) since
the regenerative option cannot be connected to the drive unit.
When using the regenerative option, set the parameter of the converter unit. Match parameter No.PA01 to
the regenerative option used.
Regenerative option selection
00: Not used
01: MR-RB139
02: MR-RB137 (3 pcs.)
11: MR-RB136-4
12: MR-RB138-4 (3 pcs.)
Parameter No.PA01
00
(3) Regenerative loss of drive unit and servo motor
Drive unit Inverse efficiency [%] C charge [J]
MR-J3-DU30KB
MR-J3-DU37KB
MR-J3-DU30KB4
MR-J3-DU37KB4
90 450
MR-J3-DU45KB4
MR-J3-DU55KB4