Mitsubishi Electric FR-A700 Series, Technical Manual

Page: 93 / 550

86
SPECIFICATIONS
1.4.32 Connection of motor with encoder (vector control)
(A700)
Orientation control and encoder feedback control, and
speed control, torque control and position control by full-
scale vector control operation can be performed using a
motor with encoder and a plug-in option FR-A7AP.
(1) Structure of the FR-A7AP
(2) Terminals of the FR-A7AP
(3) Terminals of the FR-A7AP
1) Encoder specification selection switch (SW1)
Select either differential line driver or
complementary
It is initially set to the differential line driver. Switch
its position according to output circuit.
2) Terminating resistor selection switch (SW2)
Select ON/OFF of the internal terminating resistor.
Set the switch to ON (initial status) when an
encoder output type is differential line driver and
set to OFF when complementary.
ON:
with internal terminating resistor (initial
setting status)
OFF: without internal terminating resistor
*1 Set all switches to the same setting (ON/OFF).
*2 If the encoder output type is differential line
driver, set the terminating resistor switch to the
"OFF" position when sharing the same encoder
with other unit (NC (numerical controller), etc)
and a terminating resistor is connected to other
unit.
A700
Terminal
Symbol
Terminal Name
Application
Explanation
PA1 Encoder A-phase signal input
A-, B- and Z-phase
signals are input from
the encoder.
PA2
Encoder A-phase inverse
signal input
PB1
Encoder B-phase signal input
terminal
PB2
Encoder B-phase inverse
signal input terminal
PZ1
Encoder Z-phase signal input
terminal
PZ2
Encoder Z-phase inverse signal
input terminal
PG
Encoder power supply
(positive side) input terminal Input terminal for the
encoder power
supply. Connect the
external power supply
(5V, 12V, 15V, 24V)
and the power cable
from encoder.
SD
Encoder power ground
terminal
PIN
Not used.
PO
Front view
Mounting
hole
Mounting
hole
Encoder specification selection switch (SW1)
Used to change the specification of encoder
(differential line driver/complementary).
Switch for manufacturer
setting (SW3)
Do not change from initially-
set status (1, 2:OFF ).
Terminating resistor selection
switch (SW2)
Switch ON/OFF of the internal
terminating resistor.
CON2 connector
Not used.
Terminal
block
1
2
3
4
O
N
1
2
O
N
1
2
O
N
SW2
SW1
LED1
LED2
LED3
SW3
FR-A7AP
Terminal layout
PA2
PB2
PZ2
SD
SD
PO
PA1
PB1
PZ1
PG
PG
PIN
PIN and PO are
not used.
Complementary
Differential line
driver (initial status)
1
2
3
4
O
N
1
2
O
N
SW2
SW1
SW3
FR-A7AP
Internal terminating
resistor-ON
(initial status)
Internal terminating resistor-OFF
1
2
3
4
O
N
1
2
O
N
SW2
SW1
SW3
FR-A7AP