14 - 48
14. OPTIONS AND AUXILIARY EQUIPMENT
(3) Precautions for wiring
The cables between the servo amplifier and the brake unit, and between the resistor unit and the brake unit
should be as short as possible. Always twist the cable longer than 5m (twist five times or more per one
meter). Even when the cable is twisted, the cable should be less than 10m. Using cables longer than 5m
without twisting or twisted cables longer than 10m, may result in the brake unit malfunction.
Servo amplifier
Brake unit
5m or less
5m or less
Servo amplifier
Brake unit
10m or less
10m or less
P( )
N( )
P
N
P
PR
PR
P
N
P
PR
P
PR
Twist
Resistor unit
Resistor unit
P( )
N( )
Twist
P
(4) Cables
(a) Cables for the brake unit
For the brake unit, HIV wire (600V Grade heat-resistant polyvinyl chloride insulated wire) is
recommended.
1) Main circuit terminal
Brake unit
Main
circuit
terminal
screw
size
Crimping
terminal
Tightening
torque
[N m]
([Ib in])
Wire size
N/ , P/ , PR,
N/
P/
PR
Terminal block
N/ , P/ ,
PR,
HIV wire [mm
2
] AWG
200V FR-BU2-15K
M4
5.5-4
1.5(13.3)
3.5
12
class FR-BU2-30K
M5
5.5-5
2.5(22.1)
5.5
10
FR-BU2-55K
M6
14-6 4.4(38.9)
14
6
400V FR-BU2-H30K
M4
5.5-4
1.5(13.3)
3.5
12
class FR-BU2-H55K
M5
5.5-5
2.5(22.1)
5.5
10
FR-BU2-H75K M6
14-6 4.4(38.9)
14
6
Summary of Contents for Melservo-J3 Series MR-J3-B
Page 19: ...10 MEMO ...
Page 55: ...1 36 1 FUNCTIONS AND CONFIGURATION MEMO ...
Page 61: ...2 6 2 INSTALLATION MEMO ...
Page 179: ...4 58 4 SIGNALS AND WIRING MEMO ...
Page 241: ...5 62 5 OPERATION MEMO ...
Page 357: ...10 16 10 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 385: ...11 28 11 TROUBLESHOOTING MEMO ...
Page 397: ...12 12 12 OUTLINE DRAWINGS MEMO ...
Page 755: ...17 70 17 SPEED CONTROL OPERATION MEMO ...
Page 793: ...App 38 APPENDIX MEMO ...
Page 799: ...MEMO ...