11. OPTIONS AND AUXILIARY EQUIPMENT
11 - 21
11.3.1 Selection
Use a combination of servo amplifier, brake unit and resistor unit listed below.
Brake unit Resistor unit
Number of
connected
units
Permissible
continuous
power
[kW]
Resultant
resistance
[Ω]
Applicable servo
amplifier
(Note 3)
1 0.99 8 MR-J4-500A(-RJ)
(Note 1)
FR-BU2-15K FR-BR-15K
2 (parallel) 1.98 4 MR-J4-500A(-RJ)
MR-J4-700A(-RJ)
MR-J4-11KA(-RJ)
MR-J4-15KA(-RJ)
FR-BU2-30K FR-BR-30K 1 1.99 4 MR-J4-500A(-RJ)
MR-J4-700A(-RJ)
MR-J4-11KA(-RJ)
MR-J4-15KA(-RJ)
FR-BR-55K 1 3.91 2 MR-J4-11KA(-RJ)
MR-J4-15KA(-RJ)
MR-J4-22KA(-RJ)
200 V
class
FR-BU2-55K
MT-BR5-55K 1 5.5 2 MR-J4-22KA(-RJ)
FR-BU2-H30K FR-BR-H30K 1 1.99 16 MR-J4-500A4(-RJ)
MR-J4-700A4(-RJ)
MR-J4-11KA4(-RJ)
(Note 2)
FR-BU2-H55K FR-BR-H55K 1 3.91 8 MR-J4-11KA4(-RJ)
MR-J4-15KA4(-RJ)
MR-J4-22KA4(-RJ)
400 V
class
FR-BU2-H75K MT-BR5-H75K 1 7.5 6.5 MR-J4-22KA4(-RJ)
Note 1. Only when using servo motor HG-RR353/HG-UR352
2. When HG-JR11K1M4 servo motor is used, limit the torque during power running to 180% or less, or the servo
motor speed to 1800 r/min or less.
3. When the brake unit is selected by using the capacity selection software, a brake unit other than the combinations
listed may be shown. Refer to the combinations displayed on the capacity selection software for detailed
combinations.
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