14 - 44
14. OPTIONS AND AUXILIARY EQUIPMENT
14.3.3 Connection example
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.
(1) Combination with FR-BR-(H) resistor unit
(a) When connecting a brake unit to a servo amplifier
SK
MCCB
MC
Servo amplifier
5
1
24VDC
SD
PR
B
C
A
SD
C
P
PR
(Note 8)
(Note 11)
OFF
ON
MC
MC
(Note 5)
L
1
L
2
L
3
L
11
L
21
CN6
17
(Note 11)
EMG
DOCOM
DICOM
ALM
(Note 12)
RA1
P
1
P
2
(Note 3)
P( )
(Note 9)
N( )
(Note 2)
BUE
N/
P/
(Note 4)
MSG
FR-BU2-(H)
(Note 6)
FR-BR-(H)
TH1
TH2
Servo motor
thermal
RA2
ALM
RA1
Forced stop
(Note 12)
(Note 1)
Power
supply
(Note 7)
(Note 10)
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
1
and P
2
terminals (P
1
and P for the servo amplifier of 11k to 22kW) (Factory-wired). When using the power
factor improving DC reactor, refer to section 14.11.
4. Connect the P/ and N/ terminals of the brake unit to a correct destination. Wrong connection results in servo amplifier and
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.
Содержание Melservo-J3 Series MR-J3-B
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