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11. OPTIONS AND AUXILIARY EQUIPMENT
11.6 External dynamic brake
POINT
Configure up a sequence which switches off the contact of the brake unit after
(or as soon as) it has turned off the servo on signal at a power failure or
failure.
For the braking time taken when the dynamic brake is operated, refer to
section 10.3.
The brake unit is rated for a short duration. Do not use it for high duty.
When using the 400V class dynamic brake, the power supply voltage is
restricted to 1-phase 380VAC to 463VAC (50Hz/60Hz).
(1) Selection of dynamic brake
The dynamic brake is designed to bring the servo motor to a sudden stop when a power failure occurs
or the protective circuit is activated, and is built in the 7kW or less servo amplifier. Since it is not built
in the 11kW or more servo amplifier, purchase it separately if required. Assign the dynamic brake interlock
(DB) to any of CN3-9, CN3-13, and CN3-15 pins in parameter No.PD07 to PD09.
Servo amplifier Dynamic brake
MR-J3-11KB DBU-11K
MR-J3-15KB DBU-15K
MR-J3-22KB DBU-22K
MR-J3-11KB4 DBU-11K-4
MR-J3-15KB4
MR-J3-22KB4
DBU-22K-4