Mitsubishi Electric 800 Series Instruction Manual page 63

Connection of motor with encoder (vector control)
Encoder cable
• As the terminal block of the FR-A8AP is an insertion type, cables need to be treated when the encoder cables of the
inverter are crimping terminals. Cut the crimping terminal of the encoder cable and strip its sheath to make its cable wires
loose.
Also, treat the shielding wires of the shielded twisted pair cable to ensure that they will not contact conductive areas.
Wire the stripped cable after twisting it to prevent it from becoming loose. In addition, do not solder it.
NOTE
• Information on crimp terminals
Commercially available products (as of January 2017)
Phoenix Contact Co., Ltd.
Cable gauge
Terminal screw
size
(mm
0.3
M2
0.5
NICHIFU Co., Ltd.
Cable gauge
Terminal screw
size
(mm
M2 0.3 to 0.75
• When using a crimp terminal (without insulation sleeve),
take caution that the twisted wires do not come out.
Wiring example
• Speed control
Three-phase
AC power
Frequency command
Frequency setting

The pin number differs according to the encoder used.
Speed control, torque control, and position control by pulse train input are available with or without the Z-phase being connected.

Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio must be 1:1.

Earth (ground) the shield of the encoder cable to the enclosure using a tool such as a P-clip. (Refer to

For the complementary, set the terminating resistor selection switch to OFF position. (Refer to

A separate power supply of 5 V/12 V/15 V/24 V is necessary according to the encoder power specification.
When the encoder output is the differential line driver type, only 5 V can be input.
Make the voltage of the external power supply the same as the encoder output voltage, and connect the external power supply across PG and
SD.
62
INSTALLATION AND WIRING
Cable stripping size
5 mm
2
With insulation sleeve
)
AI 0,34-6TQ
AI 0,5-6WH
Crimp terminal product
2
number
)
BT 0.75-7
5 V differential line driver
MCCB MC
supply
Forward rotation start
Reverse rotation start
Contact input common
3
2
potentiometer
1/2 W 1 kΩ 1
Torque limit
(+)
command
(-)
(±10 V)
Ferrule terminal model
Without insulation sleeve
A 0,34-7
A 0,5-6
Insulation cap product
number
VC 0.75
Inverter
R/L1 U
S/L2 V
W
T/L3
Earth
STF
FR-A8AP (Ground)
STR
PA1
PA2
SD
PB1
PB2
10
Differential
PZ1
PZ2
2
Complementary
5
PG
SD
Terminating
resistor ON
PG
1
∗3
SD
OFF
∗4
Crimping tool
name
CRIMPFOX 6
Crimping tool
product
number
NH 69
U
V
IM
W
E
∗1
C
R
A
N
Encoder
B
P ∗2
H
K
(-)
(+) 5 VDC power supply
∗5
page 63.)
page 61.)