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13. OPTIONS AND AUXILIARY EQUIPMENT
(c) 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
(d) Cables
For the brake unit, HIV cable (600V grade heat-resistant PVC insulated wire) is recommended.
a) Main circuit terminal
Cable size
Crimping
terminal
N/ , P/ , PR,
Brake unit
Main
circuit
terminal
screw
size
N/ , P/ ,
PR,
Tightening
torque
[N m]
([lb in])
HIV cables,
etc. [mm
2
]
AWG
FR-BU2-15K
M4
5.5-4
1.5 (13.3)
3.5
12
FR-BU2-30K
M5
5.5-5
2.5 (22.1)
5.5
10
N/
P/
PR
Terminal block
FR-BU2-55K
M6
14-6
4.4 (38.9)
14
6
b) Control circuit terminal
POINT
Undertightening can cause a cable disconnection or malfunction.
Overtightening can cause a short circuit or malfunction due to damage to
the screw or the brake unit.
A
RES
PC
B
SD
BUE
C
MSG
SD
MSG
SD SD
Jumper
Terminal block
6mm
Sheath
Core
Wire the stripped cable after twisting to prevent the cable
from becoming loose. In addition, do not solder it.
Screw size: M3
Tightening torque: 0.5N m to 0.6N m
Cable size: 0.3mm
2
to 0.75 mm
2
Screw driver: Small flat-blade screwdriver
(Tip thickness: 0.4mm/Tip width 2.5mm)
Summary of Contents for MR-J2S-*A
Page 13: ...WWW NNC IR A 12 MEMO ...
Page 117: ...WWW NNC IR 3 70 3 SIGNALS AND WIRING MEMO ...
Page 185: ...WWW NNC IR 7 12 7 GENERAL GAIN ADJUSTMENT MEMO ...
Page 195: ...WWW NNC IR 8 10 8 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 197: ...WWW NNC IR 9 2 9 INSPECTION MEMO ...
Page 221: ...WWW NNC IR 11 10 11 OUTLINE DIMENSION DRAWINGS MEMO ...
Page 293: ...WWW NNC IR 13 64 13 OPTIONS AND AUXILIARY EQUIPMENT MEMO ...
Page 321: ...WWW NNC IR 14 28 14 COMMUNICATION FUNCTIONS MEMO ...
Page 389: ...WWW NNC IR 15 68 15 ABSOLUTE POSITION DETECTION SYSTEM MEMO ...