Mitsubishi Electric FR-A700 Instruction Manual page 78

Connection of motor with encoder (vector control)
● Position control
Vector control dedicated motor, 12V complimentary
MELSEC QD75P1
Tab. 3-18: Position control
The pin number differs according to the encoder used. Speed control and torque control are
properly performed even without connecting Z phase.
Connect the encoder so that there is no looseness between the motor and motor shaft.
Speed ratio should be 1:1.
Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc.
(Refer to page 3-41.)
For the complementary, set the terminating resistor selection switch to off position. (Refer
to page 3-35.)
A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power
specification. When performing orientation control together, an encoder and power supply
can be shared.
For terminal compatibility of the FR-JCBL and FR-A7AP, refer to page 3-37.
Assign the function using Pr. 178 to Pr. 184, Pr. 187 to Pr. 189 "Input terminal function
selection".
When position control is selected, terminal JOG function is made invalid and conditional
position pulse train input terminal becomes valid.
Assign the function using Pr. 190 to Pr. 194 "Output terminal function selection".
NOTE The figure above shows the connection when using sink logic.
3 - 40
Positioning unit
Three-phase
AC power
supply
Forward stroke end
Reverse stroke end
Pre-excitation/servo on
24V DC power supply
Preparation ready signal
Torque limit
command
(±10 V)
Inverter
Clear signal
Pulse train
Sign signal
Differential
Terminating
resistor
Earth
Compli-
mentary
ON
OFF
5V DC power supply
Wiring
M
3~
Encoder
I001447E