17. FULLY CLOSED LOOP SYSTEM 
17 -  7 
 
17.2.3 Configuration diagram of encoder cable 
Configuration diagram for servo amplifier and load-side encoder is shown below. Cables used vary, 
depending on the load-side encoder. 
 
(1) Linear encoder 
Refer to Linear Encoder Instruction Manual for encoder cables for linear encoder. 
 
(a)  MR-J4-_A_ servo amplifier 
Servo amplifier
Linear encoder
CN2
MR-J4FCCBL03M branch cable
(Refer to section 17.2.4)
Encoder of rotary servo motor
Encoder cable
(Refer to the Linear Encoder Instruction Manual.)
CN2 MOTOR
SCALE
Load-side
encoder
 
(b)  MR-J4-_A_-RJ servo amplifier 
You can connect the linear encoder without using a branch cable shown in (a) for MR-J4-_A_-RJ 
servo amplifier. You can also use a four-wire type linear encoder. 
Servo amplifier
Linear encoder
CN2
Encoder of rotary servo motor
CN2L
Encoder cable
(Refer to the Linear Encoder Instruction Manual.)
Load-side
encoder