Motor Thermistor Interface; Connection Diagram - Mitsubishi Electric 800 Series Instruction Manual

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MOTOR THERMISTOR INTERFACE

A vector-controlled motor with thermistor (SF-V5RUT/A) detects the motor temperature with the motor-side
thermistor and sends the detected temperature to the inverter as a feedback. This operation reduces fluctuation of the
generated torque due to temperature changes. The detected motor temperature can be output as an output signal (Y55 signal)
or be displayed on the monitor.
Torque accuracy is ±3%.
6.1

Connection diagram

Three-phase
AC power supply
*1 When calibrating the thermistor, change the switch for thermistor calibration. (Refer to
MCCB MC
Inverter
U
R/L1
V
S/L2
W
T/L3
FR-A8AZ
TH1
TH2
Shielded twisted pair cable
SW2 ∗1
page 41)
MOTOR THERMISTOR INTERFACE
Motor
M
Thermistor
37
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