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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.
Part No. Series
Name
EU, Japan USA
See
page
AC reactor, input side ALI-xxx2 HRL-x 5-3
RF noise filter, input side ZCL-xxx ZCL-xxx 5-4
EMI filter (for CE) FFL100-xxx FFL100-xxx 5-4
Capacitive filter CFI-x CFI-x 5-4
DC link choke DCL-x-xx HDC-xxx 5-5
Braking resistor JRB-xxx-x
SRB-xxx-x
JRB-xxx-x
SRB-xxx-x
5-5
Braking resistor
NEMA-rated
−
HRB-x,
NSRBx00-x
NJRB-xxx
5-5
Braking unit BRD-xxx BRD-xxx 5-5
RF noise filter, output side ZCL-xxx ZCL-xxx 5-4
AC reactor, output side ACL-x2-xxx HRL-xxx 5-3
LCR filter Combination:
ACL-x2-xxx
LPF-xxx
R-2-xxx
HRL-xxC 5-3
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 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.
Breaker,
MCCB or
GFI
From power supply
Capacitive
filter
Motor
Thermal
switch
L1 L2 L3
T1 T2 T3
Inverter
+1
+
GND
EMI filter
A
C reacto
r
(Input choke)
RF noise filter
DC link
choke
-
Braking
Unit
RF noise filter
A
C reacto
r
(Input choke)
or LCR filter
5−2
Inverter System
Accessories