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14. OPTIONS AND AUXILIARY EQUIPMENT
(2) Connection example
NFB
L11
L21
U
V
W
U
V
W
M
Servo amplifier
Servo motor
RA2
MC
SK
MC
ON
OFF
ALM
RA1
Operation-ready
EMG
L
3
L
2
L
1
(Note 5)
Power
supply
13 U14 V W
External dynamic brake
a
b
(Note 1)
P
P
1
(Note 2)
(Note 4)
EMG
17
1
SDPlate
DB
(Note 3)
DOCOM
5
DICOM
ALM15
CN6
RA2
MC
24VDC
RA1
(Note 6)
Note 1. Terminals 13, 14 are normally open contact outputs. If the dynamic brake is seized, terminals 13, 14 will open.
Therefore, configure up an external sequence to prevent servo-on.
2. When using the servo amplifier of 11k to 22kW, make sure to connect P
1
and P. (Factory-wired.)
When using the power factor DC reactor, refer to section 14.11.
3. Assign the dynamic brake interlock (DB) in the parameters No.PD12 to PD14.
4. Stepdown transformer is required for coil voltage of magnetic contactor more than 200V class in 400V class servo amplifiers.
5. Refer to section 1.2 for the power supply specification.
6. The power supply voltage of the inside magnet contactor for 400V class dynamic brake DBU-11K-4 and DBU-22K-4 is restricted
as follows. When using these dynamic brakes, use them within the range of the power supply.
Dynamic brake Power supply voltage
DBU-11K-4
DBU-22K-4
1-phase 380 to 463VAC 50Hz/60Hz