Hitachi SJ300-037HFE 사용자 설명서

Introduction

Geting Star

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Congratulations on your purchase of an SJ300 
Series Hitachi inverter! This inverter drive features 
state-of-the-art circuitry and components to provide 
high performance. The housing footprint is excep-
tionally small, given the size of the corresponding 
motor. The Hitachi SJ300 product line includes 
more than twenty inverter models to cover motor 
sizes from 1/2 horsepower to 200 horsepower, in 
either 230 VAC or 480 VAC power input versions. 
The main features are:

• 200V Class and 400V Class inverters

• UL or CE version available

• Sensorless vector control

• Regenerative braking circuit

• Different operator keypads available for RUN/

STOP control and setting parameters

• Built-in RS-422 communications interface to 

allow configuration from a PC and for field bus 
external modules

• Sixteen programmable speed levels

• Motor constants are programmable, or may be set 

via auto-tuning

• PID control adjusts motor speed automatically to 

maintain a process variable value

The design of Hitachi inverters overcomes many of 
the traditional trade-offs between speed, torque and 
efficiency. The performance characteristics are: 

• High starting torque of 150% rating or greater

• Continuous operation at 100% rated torque 

within a 1:10 speed range (6/60 Hz / 5/50 Hz) 
without motor derating

• Models from 0.4–11kW (1/2 to 15hp) have built-

in dynamic braking units

• Cooling fan has ON/OFF selection to provide 

longer life

A full line of accessories from Hitachi is avail-
able to complete your motor control application. 
These include:

• Digital remote operator keypad

• Expansion card for sensor feedback

• Braking resistors

• Radio noise filters

• CE compliance filters

• Additional factory I/O network interface cards 

(to be announced)