Connection Example - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

14. OPTIONS AND AUXILIARY EQUIPMENT

14.3.3 Connection example

(1) Combination with FR-BR-(H) resistor unit
(a) When connecting a brake unit to a servo amplifier
(Note 8)
(Note 5)
MCCB
(Note 1)
Power
supply
Note 1. For power supply specifications, refer to section 1.2.
2. For the servo amplifier of 5k and 7kW, always disconnect the lead of built-in regenerative resistor, which is connected to the P
and C terminals. For the servo amplifier of 11k to 22kW, do not connect a supplied regenerative resistor to the P and C
terminals.
3. Always connect P and P
1
factor improving DC reactor, refer to section 14.11.
4. Connect the P/ and N/
brake unit malfunction.
5. For 400VAC class, a step-down transformer is required.
6. Contact rating: 1b contact, 110VAC_5A/220VAC_3A
Normal condition: TH1-TH2 is conducting. Abnormal condition: TH1-TH2 is not conducting.
7. Contact rating: 230VAC_0.3A/30VDC_0.3A
Normal condition: B-C is conducting/A-C is not conducting. Abnormal condition: B-C is not conducting/A-C is conducting.
8. For the servo motor with thermal sensor, connect the thermal sensor of the servo motor.
9. Do not connect more than one cable to each P( ) to N( ) terminals of the servo amplifier.
10. Always connect BUE and SD terminals (Factory-wired).
11. The diagram is for when outputting the malfunction (ALM) is enabled by changing the parameter. If disabling malfunction (ALM)
output, configure the power supply circuit which switches off the magnetic contactor after detection of alarm occurrence on the
controller side.
12. Configure the circuit which shuts off main circuit power with external sequence at forced stop (EMG) off.
POINT
Connecting PR terminal of the brake unit to P terminal of the servo amplifier
results in brake unit malfunction. Always connect the PR terminal of the brake
unit to the PR terminal of the resistor unit.
Servo motor (Note 11)
thermal ALM
RA2 RA1
Servo amplifier
MC
L
1
L
2
L
3
L
11
L
21
terminals (P and P for the servo amplifier of 11k to 22kW) (Factory-wired). When using the power
2 1
terminals of the brake unit to a correct destination. Wrong connection results in servo amplifier and
OFF
ON
Forced stop
MC
(Note 12)
CN6
EMG
1
17
DOCOM
5
DICOM
ALM
(Note 11)
P
1
(Note 3)
P
2
P( )
(Note 9)
N( )
C
(Note 2)
14 - 44
MC
SK
(Note 12)
FR-BR-(H)
24VDC
(Note 6)
P
RA1 PR
FR-BU2-(H)
PR
P/
(Note 4)
N/
BUE
(Note 10)
SD
TH1
TH2
MSG
SD
A
B
C
(Note 7)