Introduction - Hitachi L100 Instruction Manual

5–2

Introduction

Introduction
A motor control system will obviously include a motor and inverter, as well as fuses for
safety. If you are connecting a motor to the inverter on a test bench just to get started,
that's all you may need for now. But a fully developed system can also have a variety of
additional components. Some can be for noise suppression, while others may enhance
the inverter's braking performance. The figure below shows a system with several
possible optional components, and the table gives part number information.
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From power supply
Cut-off
switch
AC reactor
RF noise filter
EMI filter
Capacitive filter
L1 L2
L3
+1
DC link choke
+
Braking
unit
Inverter
–
GND
T1
T2 T3
RF noise
filter
AC reactor, or
LCR filter
Motor
Thermal switch
Part No. Series
Name
Europe,
Japan
AC reactor, input ALI–xxx
side
RF noise filter, ZCL–x
input side
EMI filter FFL100–xx
(for CE)
Capacitive filter CFI–x
DC link choke —
Resistance BRD–xxx
braking unit
RF noise filter, ZCL–xxx
output side
AC reactor, output ALI–xxx
side
LCR filter —
NOTE: The Hitachi part number series for
accessories includes different sizes of each part
type, specified by the –x suffix. Hitachi product
literature can help match size and rating of the
your inverter to the proper accessory size.
Each inverter accessory comes with its own
printed instruction manual. Please refer to those
manuals for complete installation details. This
chapter gives only an overview of these optional
system devices.
See
page
USA
HRL–x 3
ZCL–x 4
FFL100–xx 4
CFI–x 4
HDC–xxx 4
BRD–xxx 5
ZCL–xxx 4
HRL–xxx 3
HRL–xxC 3