Options And Auxiliary Equipment; Options; Regenerative Brake Options - Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual

13. OPTIONS AND AUXILIARY EQUIPMENT

13. OPTIONS AND AUXILIARY EQUIPMENT
WARNING
CAUTION

13.1 Options

13.1.1 Regenerative brake options

CAUTION
(1) Combination and regenerative power
The power values in the table are resistor-generated regenerative powers and not rated powers.
Servo amplifier Built-in regenerative
brake resistor
MR-E-10A
MR-E-20A
MR-E-40A
MR-E-70A
MR-E-100A
MR-E-200A
Note: Always install a cooling fan.
(2) Selection of the regenerative brake option
(a) 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 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 for servo motor with no load (value indication Section 5.1 in Servo Motor Instruction Manual)
Permissible
duty
where m
From the permissible duty, find whether the regenerative brake option is required or not.
Permissible duty number of positioning times [times/min]
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.
Regenerative power[W]
MR-RB032
[40 ]
30
30
10 30
20 30
20 30
100
ratedspeed
running speed
load inertia moment/servo motor inertia moment
MR-RB12 MR-RB32
[40 ] [40 ]
100
100
100 300
100 300
(m 1)
2
[times/min]
13 - 1
(Note)
MR-RB30
MR-RB50
[13 ]
[13 ]
300 500