Connection of motor with encoder (vector control)
60
2.8
Connection of motor with encoder (vector
control)
Using encoder-equipped motors together with a vector control compatible option enables speed and torque control operations
under orientation control, encoder feedback control, and full-scale vector control.
This section explains wiring for use of the FR-A8AP.
Appearance and parts name of FR-A8AP
Terminals of the FR-A8AP
NOTE
• When the encoder's output voltage differs from its input power supply voltage, the signal loss detection (E.ECT) may occur.
• Incorrect wiring or faulty setting to the encoder will cause a fault such as an overcurrent (E.OC[ ]) and an inverter
overload (E.THT).
Correctly perform the encoder wiring and setting.
Symbol
Name
Description
Refer
to page
a
Mounting hole
Used for installation to the inverter.
—
b
Terminal block
Connected with the encoder.
c
Encoder type selection switch (SW3) Switches the encoder type (differential line driver/complementary).
d
CON2 connector
Used for extension
—
e
Terminating resistor selection switch
(SW1)
Switches ON or OFF the internal terminating resistor.
f
Switch for manufacturer setting
(SW2)
Do not change from the initially-set status. (Switches 1 and 2 are OFF
.) —
g
Connector
Connected to the option connector of the inverter.
h
LED for manufacturer check
Not used.
—
Terminal
symbol
Terminal name
Description
PA1
Encoder A-phase signal input terminal
A-, B- and Z-phase signals are input from the encoder.
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 side) input terminal
Input terminal for the encoder power supply.
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.)
SD
Encoder power supply ground terminal
PIN
Not used.
PO
Front view
Rear view
Terminal layout
PA
2
PB2
PZ2
SD
SD
PO
PA
1
PB1
PZ1
PG
PG
PIN
PIN and PO
are not used.
1
2
3
4
O
N
1
2
O
N
SW2
SW3
SW1
(a)
(a)
(a)
(b)
(a)
(a)
(a)
(e)
(d)
(f)
(c)
(h)
1
2
O
N
Summary of Contents for FR-A842-07700
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