Mitsubishi Electric FR-A8AX Instruction Manual download pdf (Page 31)

VECTOR CONTROL

 The pin number differs according to the encoder used.

Speed, control, torque control, and position control by pulse train input are available with or without the Z-phase being connected.

 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio must be 1:1.

 Earth (ground) the shield of the encoder cable to the enclosure using a tool such as a P-clip. (Refer to page 12.)

 For the complementary, set the terminating resistor selection switch to OFF position. (Refer to page 10.)

 A separate power supply of 5 V/12 V/15 V/24 V is necessary according to the encoder power specification.

When the encoder output is the differential line driver type, only 5 V can be input.

Make the voltage of the external power supply the same as the encoder output voltage, and connect the external power supply across PG

and SD.

When performing orientation control together, an encoder and power supply can be shared.

 For terminal compatibility of the FR-JCBL, FR-V7CBL, and FR-A8AP, refer to page 16.

 For the fan of the 7.5 kW or lower dedicated motor, the power supply is single phase. (200 V/50 Hz, 200 to 230 V/60 Hz)

 To use a terminal as the terminal OH, assign the OH (external thermal O/L relay input) signal to an input terminal. (Set "7" in any of Pr.178

to Pr.189. For details, refer to the Instruction Manual (Detailed) of the inverter.)

 Assign the function using Pr.178 to Pr.184, Pr.187 to Pr.189 (input terminal function selection).

 When position control is selected, terminal JOG function is invalid and simple position pulse train input terminal becomes valid.

 Assign the function using Pr.190 to Pr.194 (output terminal function selection).

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Mitsubishi Electric FR-A8AX Instruction Manual Page 31