Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual page 242

11. OPTIONS AND AUXILIARY EQUIPMENT
(2) Combination with MT-BR5-(H) resistor unit
Servo motor
thermal relay
(Note 4)
NFB
(Note 1)
Power
supply
Note 1. For power supply specifications, refer to section 1.3.
2. Always connect between P
section 11.13.
3. Connect the P/ and N/
brake unit malfunction.
4. For the servo amplifier of 400V class, a step-down transformer is required.
5. Contact rating: 1a contact, 110VAC_5A/220VAC_3A
Normal condition: TH1-TH2 is not conducting. Abnormal condition: TH1-TH2 is conducting.
6. 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.
7. Do not connect more than one cable to each P and N terminals of the servo amplifier.
8. Always connect between BUE and SD terminals (Factory-wired).
9. For the servo amplifier of 22kW, do not connect a supplied regenerative resistor to the P and C terminals.
Controller
forced stop
EM1
RA2 RA3
ALM
RA1
Servo amplifier
MC
L
1
L
2
L
3
L
11
L
21
(Note 7)
- P( ) terminals (Factory-wired). When using the power factor improving DC reactor, refer to
1
terminals of the brake unit to a correct destination. Wrong connection results in servo amplifier and
ON
OFF
MC
CN3
20 EM1
3
DOCOM
24VDC
10 DICOM
15 ALM
RA1
C
(Note 9)
P
(Note 2)
1
P( )
N( )
11 - 39
RA4
MC
SK
MT-BR5-(H)
(Note 5)
TH1
P
TH2
PR
FR-BU2-(H)
PR MSG
P/
(Note 3)
N/
BUE
(Note 6)
(Note 8)
SD
SK
RA4
SD
A
B
C