Instruction manual

Optional accessories Accessories
MELSERVO J2-Super 7 - 3
Selection of the regenerative brake option
● 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 tab. 10-4, tab. 10-5 and tab. 10-6 in section 10.2.2.
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:
From the permissible duty, find whether the regenerative brake option is required or not.
Select the regenerative brake option out of the combinations in tab. 7-1 or tab. 7-2.
permissible duty
permissible duty for servo motor with no load (value refer 10.2)
m1+()
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
rated speed
running speed
--------------------------------------
⎝⎠
⎛⎞
2
× times/min[]=
m
load inertia moment
servo motor inertia moment
-------------------------------------------------------------------------=