External Dynamic Brake - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

13. OPTIONS AND AUXILIARY EQUIPMENT

13.1.4 External dynamic brake

(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. Set " 1
No. 1.
Servo amplifier
MR-J2S-11KA
MR-J2S-15KA
MR-J2S-22KA
(2) Connection example
(Note1) EMG
NFB
Power supply
3-phase
200 to
230VAC
RA1
Note1. Configure up the circuit so that power is switched off in the external sequence at servo alarm occurrence.
2. When using servo ampliflers of 11kw to 22kw, always connect P-P1.(Factory-wired.) When using the power factor
improving DC reactor, refer to Section 13.2.4
Dynamic brake
DBU-11K
DBU-15K
DBU-22K
Operation-ready
ON
OFF
MC
MC
SK
(Note2)
Servo amplifier
CN1B
3 VDD
13
COM
18 DB
MC
L
1
U
L
2
V
L
3
L W
11
L
21
P
CN1B
5
SON
P
1
15 EMG
10 SG
Plate SD
a
b
13 - 15
" in the parameter
RA1
U
V
W
E
RA1
EMG
14 13 U V W
Dynamic brake
Servo motor
M