Mitsubishi Electric FR-A8AX Instruction Manual download pdf (Page 19)

ENCODER SPECIFICATIONS AND PARAMETER SETTINGS

 Power supply

Choose a power supply for encoder according to the encoder used (5 V/12 V/15 V/24 V). When the encoder output is the

differential line driver type, only 5 V can be input. Make sure the voltage of the external power supply the same as the encoder

output voltage. (Check the encoder specification.)

When an encoder is used under orientation control, encoder feedback control, and vector control, the power supply is shared

between the inverter and encoder.

• Specifications of the encoders equipped in the motors with encoders and the vector-control dedicated motors

NOTE

• When the input power supply voltage to the encoder and its output voltage differ, the protective function (E.ECT) may

be activated.

Item Encoder for SF-JR/HR/JRCA/HRCA Encoder for SF-V5RU, SF-THY

Resolution 1024 pulses/rev 2048 pulses/rev

Power supply voltage 5 VDC±10% 12 VDC±10%

Current consumption 150 mA

Output signal form

A, B phases (90° phase shift)

Z phase: 1 pulse/rev

Output circuit Differential line driver 74LS113 equivalent Complementary

Output voltage

H level: 2.4 V or more

L level: 0.5 V or less

H level: "Power supply for encoder-3 V" or more

L level: 3 V or less

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Mitsubishi Electric FR-A8AX Instruction Manual Page 19