Mitsubishi Electric FR-A700 Technical Manual page 93

1.4.32 Connection of motor with encoder (vector control)
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
Terminal
block
SW2
SW1
Mounting
hole
CON2 connector
Not used.
Encoder specification selection switch (SW1)
Used to change the specification of encoder
(differential line driver/complementary).
Terminal layout
PA2
PB2
PZ2
SD
SD
PO
PIN and PO are
not used.
(2) Terminals of the FR-A7AP
Terminal
Terminal Name
Symbol
PA1 Encoder A-phase signal input
Encoder A-phase inverse
PA2
signal input
Encoder B-phase signal input
PB1
terminal
Encoder B-phase inverse
PB2
signal input terminal
Encoder Z-phase signal input
PZ1
terminal
Encoder Z-phase inverse signal
PZ2
input terminal
Encoder power supply
PG
(positive side) input terminal
Encoder power ground
SD
terminal
PIN
Not used.
PO
Mounting
Front view
hole
LED1
LED2
LED3
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.
PA1
PB1
PZ1
PG
PG
PIN
Application
Explanation
A-, B- and Z-phase
signals are input from
the encoder.
Input terminal for the
encoder power
supply. Connect the
external power supply
(5V, 12V, 15V, 24V)
and the power cable
from encoder.
A700
(A700)
(3) Terminals of the FR-A7AP
1) Encoder specification selection switch (SW1)
Select either
complementary
It is initially set to the differential line driver. Switch
its position according to output circuit.
Differential line
driver (initial status)
Complementary
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.
Internal terminating
resistor-ON
(initial status)
Internal terminating resistor-OFF
86
SPECIFICATIONS
differential line driver
SW2
SW1
SW2
SW1
or