sh030106u.pdf - 第627页

17. APPLICATIO N OF FUNCTIONS 17 - 76 1) MR-J4-_B_ servo am plifier Servo amplifier Linear encoder CN2 MR-J4FCCBL03M branch cabl e (Refer to section 16.2.4.) Encoder of rotary servo motor Encoder cable (Refer to "Li…

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17. APPLICATION OF FUNCTIONS
17 - 75
17.3.2 Scale measurement encoder
POINT
Always use the scale measurement encoder cable introduced in this section.
Using other products may cause a malfunction.
For details of the scale measurement encoder specifications, performance and
assurance, contact each encoder manufacturer.
(1) Linear encoder
Refer to "Linear Encoder Instruction Manual" for usable linear encoders.
To use the scale measurement function in the absolute position detection system ([Pr. PA22] = 1_ _ _),
an absolute position linear encoder is required. In this case, you do not need to install the encoder
battery to the servo amplifier for backing up the absolute position data of the load side. To use a servo
motor in the absolute position detection system ([Pr. PA03] = _ _ _1), the encoder battery must be
installed to the servo amplifier for backing up the absolute position data of the servo motor side.
(2) Rotary encoder
If using a rotary encoder as a scale measurement encoder, use the following servo motor or encoder.
Servo amplifier HG-KR HG-MR
Synchronous encoder
Q171ENC-W8
A/B/Z-phase differential
output (Note)
MR-J4-_B_
MR-J4-_B_-RJ
Note.
A
/B/Z-phase differential output rotary encoders with the same specifications as A/B/Z-phase differential output
linear encoders can be used as scale measurement encoders. Refer to "Linear Encoder Instruction Manual".
Use a two-wire type encoder cable for MR-J4-_B_ servo amplifiers. Do not use MR-EKCBL30M-L, MR-
EKCBL30M-H, MR-EKCBL40M-H, or MR-EKCBL50M-H as they are four-wire type.
When an encoder cable of 30 m to 50 m is needed, fabricate a two-wire type encoder cable according to
app. 8.
To use the scale measurement function in the absolute position detection system ([Pr. PA22] = 1_ _ _),
the encoder battery must be installed to the servo amplifier for backing up the absolute position data of
the load side. In this case, the battery life will be shorter because the power consumption is increased as
the power is supplied to the two encoders of motor side and load side.
(3) Configuration diagram of encoder cable
Configuration diagram for servo amplifier and scale measurement encoder is shown below. Cables vary
depending on the scale measurement encoder.
(a) Linear encoder
Refer to Linear Encoder Instruction Manual for encoder cables for linear encoder.
17. APPLICATION OF FUNCTIONS
17 - 76
1) MR-J4-_B_ servo amplifier
Servo amplifier
Linear encoder
CN2
MR-J4FCCBL03M branch cabl
e
(Refer to section 16.2.4.)
Encoder of rotary servo motor
Encoder cable
(Refer to "Linear Encoder Instruction Manual".)
CN2 MOTOR
SCALE
Scale
measurement
encoder
2) MR-J4-_B_-RJ servo amplifier
You can connect the linear encoder without using a branch cable shown in 1) for MR-J4-_B_-RJ
servo amplifier. You can also use a four-wire type linear encoder.
Servo amplifier
Linear encoder
CN2
Encoder of rotary servo motor
Encoder cable
(Refer to "Linear Encoder Instruction Manual".)
Scale
measurement
encoder
CN2L
(b) Rotary encoder
Refer to "Servo Motor Instruction Manual (Vol. 3)" for encoder cables for rotary encoders.
1) MR-J4-_B_ servo amplifier
Servo amplifier
CN2
MR-J4FCCBL03M branch cable
(Refer to section 16.2.4.)
Encoder of rotary servo motor
Encoder cable
(Refer to "Servo Motor Instruction Manual (Vol. 3)".)
CN2 MOTOR
SCALE
(Note)
Scale
measurement
encoder
Servo motor
HG-KR
HG-MR
(Note)
Note. Use a two-wire t
y
pe encoder cable. A fou
r
-wire t
y
pe linear encoder cable cannot be used.
17. APPLICATION OF FUNCTIONS
17 - 77
2) MR-J4-_B_-RJ servo amplifier
You can connect the rotary encoder without using a branch cable shown in 1) for MR-J4-_B-RJ
servo amplifier. In addition, a four-wire type or A/B/Z-phase differential output rotary encoder can
also be used.
CN2
CN2L
Q170ENCCBL_M-A
HG-KR
HG-MR
Servo amplifier
Encoder of rotary servo motor
Encoder cable
(Refer to "Servo Motor Instruction Manual (Vol. 3)".)
Scale
measurement
encoder
Servo motor
Synchronous encoder Q171ENC-W8
Encoder cable
(Refer to "Linear Encoder Instruction Manual".)
A/B/Z-phase differential output rotary
encoder (Note)
Note.
A
/B/Z-phase differential output rotary encoders with the same specifications as A/B/Z-phase differential output linear encoders can
be used as scale measurement encoders. Refer to "Linear Encoder Instruction Manual".