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13. OPTIONS AND AUXILIARY EQUIPMENT
13. OPTIONS AND AUXILIARY EQUIPMENT
WARNING Before connecting any option or auxiliary equipm ent, make sure that the ch arge
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 el ectric shock.
CAUTION Use the specified auxiliary equipment and options. Uns pecified ones may lead to a
fault or fire.
13.1 Options
13.1.1 Regenerative brake options
CAUTION The specified combinations of regenerative brake 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 regenerative powers and not rated powers.
Regenerative power[W]
Servo amplifier Built-in regenerative
brake resistor
MR-RB032
[40 ]
MR-RB12
[40 ]
MR-RB32
[40 ]
MR-RB30
[13 ]
(Note)
MR-RB50
[13 ]
MR-E-10A 30
MR-E-20A 30 100
MR-E-40A 10 30 100
MR-E-70A 20 30 100 300
MR-E-100A 20 30 100 300
MR-E-200A 100 300 500
Note: Always install a cooling fan.
(2) Selection of the regenerative brake opti on
(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 perm issible d uty chang es accord ing to the inerti a momen t of
the load and can be calculated by the following fo rmula:
Permissible
duty
Permissible duty for servo motor with no load (value indication Section 5.1 in Servo Motor Instr uc t io n Ma nual)
(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 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.