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6. OPTION AND AUXILIARY EQUIPMENT
WARNING
CAUTION
6 - 1 Dedicated options
6 - 1 - 1 Regenerative brake options
CAUTION
(1) Combination and regenerative power
Servo Amplifier
Built-in regenerative
Model
brake resistor
MR-J2-10B
Without
MR-J2-20B
MR-J2-40B
MR-J2-60B
MR-J2-70B
MR-J2-100B
MR-J2-200B
MR-J2-350B
Note: This value is the regenerative power of the resistor and is not the rated power.
(2) Selection of the regenerative brake option
1) Simple selection method
In horizontal motion applications, select the regenerative brake option as described below:
When the servo motor is run without load in the regenerative mode from the running speed to a
stop, the permissible duty is as indicated in the standard specifications (Section 10-1). For the servo
motor with a load, the permissible duty changes according to the inertia moment of the load and can
be calculated by the following formula:
Permissible duty
From the permissible duty, find whether the regenerative brake option is required or not.
Permissible duty
Select the regenerative brake option out of the combinations in (1) in this section.
Before connecting any option or auxiliary equipment, make sure that the charge
lamp is off more than 10 minutes after power-off, then confirm the voltage with a
tester or the like. Otherwise, you may get an electric shock.
Use the specified auxiliary equipment and options. Unspecified ones may lead to a
fault or fire.
The specified combinations of regenerative brake options and servo amplifiers may
only be used. Otherwise, a fire may occur.
(Note) Regenerative Power[W]
MR-RB032
[40 ]
30
10
30
10
30
10
30
20
30
20
30
100
100
permissible duty for servo motor with no load (value indication Section 10-1)
number of positioning times n1
MR-RB12
MR-RB32
[40 ]
[40 ]
100
100
100
100
300
100
300
(m 1)
ratedspeed
running speed
6 - 1
MR-RB30
MR-RB50
[13 ]
[13 ]
300
500
300
500
2
[times/minute]
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