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2.8
Connection to a motor with encoder (Vector
control)
Using encoder-equipped motors together with a Vector control compatible option enables speed, torque, and positioning
control operations under orientation control, encoder feedback control, and full-scale Vector control.
(The vector control compatible options can be installed only to the master inverter.)
This section explains wiring for use of the FR-A8AP.
Appearance and parts name of the FR-A8AP
Terminal layout
Symbol
Name
(a)
Mounting hole
(b)
Terminal block
Encoder type selection switch
(c)
(SW3)
(d)
CON2 connector
Terminating resistor selection
(e)
switches (SW1)
Switches (SW2) for manufacturer
(f)
setting
(g)
Board mounted option connector
(h)
LED for manufacturer check
Terminals of the FR-A8AP
Terminal
symbol
PA1
Encoder A-phase signal input terminal
PA2
Encoder A-phase inverse signal input terminal
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) input terminal Input terminal for the encoder power supply.
SD
Encoder power supply ground terminal
PIN
Not used.
PO
Front view
(a)
(d)
(f)
1
2
PIN and PO
(c)
are not used.
(e)
(a)
Used for installation to the inverter.
Connected with the encoder.
Switches the encoder type (differential line driver/complementary).
Used for extension.
Switch ON or OFF the internal terminating resistor.
Do not change the initial setting (both SW2-1 and SW2-2 switches: OFF
).
1
O
N
2
Used to connect this product to the option connector on the inverter.
Not used.
Terminal name
(a)
(h)
O
N
SW2
SW3
(b)
(a)
Description
A-, B- and Z-phase signals are input from the encoder.
Connect the external power supply (5 V, 12 V, 15 V, 24 V) and the encoder
power cable. When the encoder output is the differential line driver type,
only 5 V can be input. Make the voltage of the external power supply same
as the encoder output voltage. (Check the encoder specification.)
2.8 Connection to a motor with encoder (Vector control)
Rear view
Refer to page
—
72
70
—
70
—
15
—
Description
2. INSTALLATION AND WIRING
1
2
3
4
(a)
5
6
7
(a)
8
9
10
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