Hitachi SJ7002 Series Instruction Manual page 242

5–2
Introduction
Introduction
From power supply
L1
EMI filter
Switch
R
Inverter
Expansion bay
Digital input
expansion card
Encoder input
expansion card
A B
U
T1
Encoder
A motor speed 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 compo-
nents, and the table gives part number information.
L2 L3
Breaker,
MCCB or
GFI
AC reactor
RF noise filter
Ferrite core
Capacitive filter
S T
+1
DC link choke
+
RB
–
GND
V W
RF noise
filter
AC reactor, or
T2 T3
LCR filter
Motor
Thermal switch
Name
AC reactor, input
side
RF noise filter,
input side
EMI filter
(EMC Class A)
EMI filter
(EMC Class B)
Capacitive filter
DC link choke
Braking resistor
Braking resistor,
NEMA-rated
Braking
Resistance braking
resistor
unit
RF noise filter,
Braking
output side
unit
AC reactor, output
side
LCR filter
Encoder feed-back
expansion
Digital input
expansion card
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. For more infor-
mation on Hitachi inverter system accessories, please
contact your Hitachi sales office or distributor.
Part No. Series
Europe,
USA
Japan
ALI–xxx HRL–x
ZCL–x ZCL–x
NF–CEHx NF–CEHxx
NF–CEHx, NF–CEHxx,
with FC–Hx with FC–Hx
CFI–x CFI–x
— HDC–xxx
JRB–xxx–x, JRB–xxx,
SRB–xxx–x SRB–xxx
DCL-x-xx HRB1-x,
HRB2-x
HRB3-x
BRD–xxx BRD–xxx
ZCL–xxx ZCL–xxx
ALI–xxx HRL–xxx
— HRL–xxxC
SJ-FB
SJ-DG
See
page
5–3
5–4
5–4
5–4
5–4
5–4
—
—
—
5–4
5–3
5–3
5–5
5–5