Connection Of Motor With Encoder (Vector Control) - Mitsubishi Electric FR-A802-P Instruction Manual

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.
(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 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
PG Encoder power supply (positive side) input 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.
Front view
(a)
(d)
(f)
O
1
2 N
SW2
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

Connection of motor with encoder (Vector control)

(a)
(h)
SW3
(a)
(b)
Description
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.)
INSTALLATION AND WIRING
Rear view
(a)
(a)
Refer
to page
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62
60
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60
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1 O
N
2
9
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