Mitsubishi Electric FR-A820-00046 Instruction Manual page 92

Connection of motor with encoder (vector control)
Terminals of the FR-A8AP
Terminal
symbol
PA1
PA2
PB1
PB2
PZ1
PZ2
PG
SD
PIN
PO
Tab. 2-30:
NOTES 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 wiring and setting to the encoder.
2 - 62
Terminal name
Encoder A-phase signal input terminal
Encoder A-phase inverse signal input terminal
Encoder B-phase signal input terminal
Encoder B-phase inverse signal input terminal
Encoder Z-phase signal input terminal
Encoder Z-phase inverse signal input terminal
Encoder power supply (positive side) input terminal
Encoder power supply ground terminal
Not used.
Terminals of the FR-A8AP
Installation and wiring
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.)