Introduction, Main features, Introduction 1–2 – Hitachi SJ100 User Manual

Page 21

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Introduction

Getting Star

ted

1–2

Introduction

Main Features

Congratulations on your purchase of an SJ100
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 SJ100
product line includes more than a dozen inverter
models to cover motor sizes from 1/4 horsepower
to 10 horsepower, in either 230 VAC or 460 VAC
power input versions. The main features are:

• 200V and 400V Class inverters

• UL or CE version available

• Sensorless vector control

• Regenerative braking circuit

• Convenient keypad for parameter settings

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

• High starting torque of 200% rating or greater

• Continuous operation at 100% torque within a 1:10 speed range (6/60 Hz / 5/50 Hz)

without motor derating

• Fan has ON/OFF selection to provide longer life for cooling fan (on models with fan)

Model SJ100-004NFU

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