MITSUBISHI ELECTRIC MR-J2S- CP - Manual (Page 258)

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14. OPTIONS AND AUXILIARY EQUIPMENT
14. OPTIONS AND AUXILIARY EQUIPMENT
WARNING
Before connecting any option or peripheral equipment, turn off the power and wait
for 15 minutes or more until the charge lamp turns off. Then, confirm that the
voltage between P and N is safe with a voltage tester and others. Otherwise, an
electric shock may occur. In addition, always confirm from the front of the servo
amplifier whether the charge lamp is off or not.
CAUTION
Use the specified auxiliary equipment and options. Unspecified ones may lead to a
fault or fire.
14.1 Options
14.1.1 Regenerative options
CAUTION
The specified combinations of regenerative options and servo amplifiers may only
be used. Otherwise, a fire may occur.
(1) Combination and regenerative power
The power values in the table are resistor-generated powers and not rated powers.
Regenerative power[W]
Servo amplifier Built-in regenerative
resistor
MR-RB032
[40 ]
MR-RB12
[40 ]
MR-RB32
[40 ]
MR-RB30
[13 ]
(Note)
MR-RB50
[13 ]
MR-RB31
[6.7 ]
(Note)
MR-RB51
[6.7 ]
MR-J2S-10CP(1) 30
MR-J2S-20CP (1) 10 30 100
MR-J2S-40CP (1) 10 30 100
MR-J2S-60CP 10 30 100
MR-J2S-70CP 20 30 100 300
MR-J2S-100CP 20 30 100 300
MR-J2S-200CP 100 300 500
MR-J2S-350CP 100 300 500
MR-J2S-500CP 130 300 500
MR-J2S-700CP 170 300 500
Note. Always install a cooling fan.
(2) Selection of the regenerative option
(a) Simple selection method
In horizontal motion applications, select the regenerative 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 section 5.1 of the separately available Servo Motor
Instruction Manual.
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 Permissible duty for servo motor with no load (value indication section 5.1 in Servo Motor Instruction Manual)
(m 1)
ratedspeed
running speed
[times/min]
2
where m load inertia moment/servo motor inertia moment
From the permissible duty, find whether the regenerative option is required or not.
Permissible duty number of positioning times [times/min]
Select the regenerative option out of the combinations in (1) of this section.