Connection Of Motor With Encoder; Control) - Mitsubishi Electric FR-A862-E Instruction Manual

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Connection of motor with encoder (Vector control)
2.8
Connection of 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.
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
c
Encoder type selection switch (SW3)
d
CON2 connector
Terminating resistor selection switch
e
(SW1)
Switch for manufacturer setting
f
(SW2)
g
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
Encoder power supply (positive side) input
PG
terminal
SD
Encoder power supply ground terminal
PIN
Not used.
PO
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.
48
INSTALLATION AND WIRING
(a)
(d)
(f)
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
Switches ON or OFF the internal terminating resistor.
Do not change from the initially-set status. (Switches 1 and 2 are OFF
Connected to the option connector of the inverter.
Not used.
Terminal name
Front view
(a)
(h)
1
O
2
N
SW2
SW3
(a)
(b)
Description
A-, B- and Z-phase signals are input from the encoder.
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.)
Rear view
1
2
Description
(a)
(a)
Refer
to page
50
49
49
.) —
O
N
9

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