Hitachi Sewing Machine SJ700B Manual De Usuario

Sequence operation is realized by downloading to an inverter a 

program created with Hitachi's EzSQ software.

Tailor inverter operation to meet changing process 

requirements, and replace separate PLCs in some cases.

By simplifying or eliminating external hardware, signficant cost 

savings can be achieved.

Password function is incorporated to provide security for 

proprietary program data against loss or unauthorized 

modification.

*

Cost and space reduction compared with external EMC Filter.

Reduces electromagnetic noise.

Meets EN61800-3 2nd-Environment

*

SJ700: European Version and Japanese Version does not have 150 kW

   SJ700B: All models

*

Cost and Space reduction compared with external Braking 

Controller.

*

SJ700B: Up to 30kW

Example (SJ700-110HFEF2)

Frequency  [Hz]

Level  [db]

Item

Description

Language Spec

I/O function

Reserved word

Language type

BASIC Like

Supported Device Windows(DOS/V)OS:Windows2000, WindowsXP)

Programming 

environment

Editor(Windows), Display(Windows)

Programmable flow control <Loop, Unconditional jump, conditional jump, 

Time control, Sub routine, Others>

Operation command <+,-,,*, /, substitution, mod, abs>
I/O control(Bit input, Word input, Bit output, Word output)
Timer control <on delay, off delay>

Inverter parameter setting
User

U(00)-U(31)/32 point

Timer

UL(00)-UL(07)/8 point

Set frequency

SET-Freq

Acceleration time

ACCEL

Deceleration time DECEL

Monitor

Output frequency, Output current, Rotative direction, 

PID feedback, Converted frequency, Output torque, 

Output voltage, Power, Cumulative RUN time, 

Cumulative power-on time, trip

General-purpose 

input contact

X(00)-X(07)/8 point

General-purpose 

output contact

Y(00)-Y(05)/6 point(1 point is relay output)
UB(00)-UB(07)/8 point

Internal user

TD(0)-TD(7)/8 point

Internal timer 

contact

In a remote operator display code.

Inverter input 

and output

Grammar check(Windows)
Program download/upload, All clear
Interpreter 2.0ms/command (Sub routine supported. 8 nested)

Memory area

Executable format

External input

External output

Command

Variable

1,024 steps or 6k byte

(Smaller of these)Program is stored in internal of inverter.

External digital

contact input

External analog 

input

General-purpose 

output terminal

Contact signal/Open collector signal input

(Internal DC24V power supply available)
Program RUN 

command

FW terminal is reserved

General-purpose 

input

Maximum of 8 point(X(00)-X(07))

XA(0) : 0-10V (O terminal) 
XA(1) : 4-20mA (OI terminal)
XA(2) : 0-10V (O2 terminal) 

External analog 

output

YA(0) : Setup for FM terminal is possible.
YA(1) : Setup for AM terminal is possible. 
YA(2) : Setup for AMI terminal is possible.

Maximum of 8 point(Y(00)-Y(05))

QP: Quasi Peak

*

Windows

®

 is a registered trademark of Microsoft Corporation.U.S.A and other countries.

130
120
110
100

90
80
70
60
50
40
30
20
10

0

 150k 200k   

500k    1M 

2M 

 

5M  7M  10M 

20M  30M

Over-current suppress ON

Motor current

Voltage of the

main circuit DC

Output frequency

Improved Sensorless Vector Control and Auto Tuning 

produce high starting torque of 200% or more at 0.3Hz.*

1

Easy setup of motor constants

Ideal for applications which need high torque, such as 

cranes, extruders and lifts.

Higher internal calculation speed improves current control 

performance. 

Over-current suppress and Over-voltage suppress functions 

avoid inverter trip during acceleration and deceleration. 

Develops 150%(SJ700B:120%) *

2

 torque at 

0Hz speed reference  

Ideal for cranes and other applications 

that require high torque at starting.

*

2

 when inverter is one frame size larger than motor.

The SJ700, with optional feedback board installed, together 

with an encoder-equipped motor can perform position control.

For many applications, suitable performance can be 

achieved at a lower cost than servo systems.

Based on your four motion parameters (position command, 

speed command, acceleration time and  deceleration time), 

the SJ700 will move an object from original position A to 

target position B. 

After the movement, 

the inverter keeps servo

lock status.

The SJ700 controls deceleration time so that the DC bus 

voltage does not exceed the over-voltage trip level, providing   

trip-less operation during deceleration.

Motor Torque vs. Speed

Torque [%]

Speed (min

-1

)

200
100

0

-100
-200

300

600

900

1200

1500 1800

Starting point A

Target point B

Over-current suppress OFF

Frequency

Motor current

PB1

PB2

PB2

Operation

circuit

T2

PB1

RY2

PB1

CM1

PB2

2

T1

T2

RY1

RY2

1

RYA

FW

CM1

8

RYB

RY1

T1

RYA

RYB

SJ700

Series

Applicable motor

SJ700B

0.4 to 55kW

75 to 132kW

185 to 400kW

11 to 75kW

90 to 160kW

Starting torque

0.3Hz/200%

0.3Hz/180%

0.3Hz/150%

0.5Hz/150%

0.5Hz/120%

*1  Starting torque

*

) Derating is applied for SJ700B. Please consult technician at Hitachi or its distributor before use.

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