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Introduction

Geting Started

Introduction

Main Features 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 exceptionally 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

• U.S. or European 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

Model SJ300-037HFU (U.S. version)

•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 available 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)

Model SJ300-037HFE

(European version)

Expansion Card - Encoder Input