Mitsubishi Electric MR-J3-10B Instruction Manual page 191

11. OPTIONS AND AUXILIARY EQUIPMENT
The cables between the servo amplifier and brake unit and between the resistor unit and brake unit
should be as short as possible. The cables longer than 5m should be twisted. If twisted, the cables must
not be longer than 10m.
The cable size should be equal to or larger than the recommended size. See the brake unit instruction
manual. You cannot connect one set of brake unit to two servo amplifiers or two sets of brake units to
one servo amplifier.
Servo amplifier
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(3) Outside dimensions
(a) Brake unit (FR-BU)
Brake Unit
FR-BU-15K
FR-BU-30K
Brake unit Resistor unit
P
P P P
PR
N N PR
5m 5m
or less or less
K
Operation
Control circuit
display
terminals
Main circuit
terminals
E
AA
Note: Ventilation ports are provided in both side faces and top face. The bottom face is open.
A AA B BA
100 60 240 225
160 90 240 225
Servo amplifier
P
N
D
K
EE E
A
C D E
128 6 18.5
128 6 33.5
11 - 28
Brake unit Resistor unit
Twist. Twist.
P P
P
PR
N
PR
10m 10m
or less or less
(Note)
C
EE K F
6 48.5 7.5
6 78.5 7.5
[Unit : mm]
Approx. Mass
[kg(Ib)]
2.4
(5.291)
3.2
(7.055)