13 - 15
13. OPTIONS AND AUXILIARY EQUIPMENT
13.1.4 External dynamic brake(1) Selection of dynamic brakeThe dynamic brake is designed to bring the servo motor to a sudden stop when a power failure occursor the protective circuit is activated, and is built in the 7kW or less servo amplifier. Since it is not builtin the 11kW or more servo amplifier, purchase it separately if required. Set " 1 " in the para mete rNo. 1.
Servo amplifier Dynamic brake
MR-J2S-11KA DBU-11K
MR-J2S-15KA DBU-15K
MR-J2S-22KA DBU-22K
(2) Connection example
13 U14 V W
NFB MC
L11
L21
U
V
W
U
V
W
E
M
a
b
RA1
RA1
EMG
CN1B
5SON
CN1B
L3
L2
L1
RA1
15 EMG
10 SG
SDPlate
18 DB
13 COM
3VDD
MC SK
MC
ON
OFF
(Note1)EMG
Servo amplifier
Servo motor
Dynamic brake
Power supply
3-phase
200 to
230VAC
Operation-ready
Note1. Configure up the circuit so that power is switched off in the external sequence at servo alarm occurrence.
P
P1
(Note2)
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