Hitachi L100 manual 145

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.

Motor Control Accessories

From power supply

						Breaker,
						MCCB or
							GFI
						AC reactor
						RF noise filter
		EMI filter
						Capacitive filter
L1			L2		L3
				+1				DC link choke
				+					Braking
	Inverter								resistor
				RB					Braking
									unit

–

GND

T1 T2 T3

RF noise

filter

AC reactor, or

LCR filter

Motor

Thermal

switch

	Part No. Series		See
Name
	Europe,
		USA	page
	Japan
AC reactor, input side	ALI–xxx2	HRL–x	5–3
RF noise filter, input	ZCL–xxx	ZCL–xxx	5–4
side
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	5–4
Braking resistor	JRB–xxx–x	JRB–xxx–x	5–5
	SRB–xxx–x	SRB–xxx–x
Braking resistor,	—	HRB-x,	5–5
NEMA-rated		NSRBx00–x
		NJRB–xxx
Resistance braking	BRD–xxx	BRD–xxx	5–5
unit
RF noise filter, output	ZCL–xxx	ZCL–xxx	5–4
side
AC reactor, output	ALI–x2–xxx	HRL–xxx	5–3
side
LCR filter	Combination:	HRL–xxC	5–3
	ALI–x2–xxx
	LPF–xxx
	R–2–xxx

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.