Hitachi WJ C1 Series User Manual

Chapter 8 Mandatory Setting for Motor Drive and Test Run
8-1-1
8.1 Mandatory Setting for Operation
8.1.1 Overview of Mandatory Setting Items
 What are the essential parameters to operate the motor and inverter?
 This chapter describes the parameter settings and procedures required to drive the motor and
inverter correctly.
 It also describes the electronic thermal function for protecting the motor.
 Follow the sections in the table below to set the parameters appropriately before starting test
run and adjustment.
Item
Description
"8.1.2 Changing the Load Rating of the
Inverter"
Set the load rating according to the application.
Select from normal duty mode suitable for elevators,
conveyors, etc. and low duty mode suitable for fans, pumps,
etc.
"8.1.3 Setting the Motor Specification
Label Data to Parameters"
Set the driven motor specification to the inverter.
Set the base frequency, maximum frequency, motor capacity,
number of motor poles, motor rated voltage, motor rated
current, etc. before starting operation.
"8.1.4 Setting Electronic Thermal for the
Motor"
The electronic thermal function is used to protect the motor
from burnout. Be sure to set it according to the motor to be
used.
"8.1.5 Setting Motor Constant"
When automatic torque boost/sensorless vector control is
used, the motor constant must be set.
If the motor constant is unknown, obtain it from the motor
manufacturer or measure the motor constant by referring to
"8.3 Carrying Out Motor Auto-tuning".
"8.2 Test Run"
In order to confirm that the inverter and motor operate
properly, conduct test runs with the motor alone and with the
actual load.
When using automatic torque boost or sensorless vector
control, set the motor constant referring to "8.1.5 Setting
Motor Constant" or "8.3 Carrying Out Motor Auto-tuning".
"8.3 Carrying Out Motor Auto-tuning"
This section explains how to perform auto-tuning. When
using a motor other than Hitachi's standard or an unknown
motor, measure the motor constant using the auto-tuning
function.
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Q
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Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English