CONNECTING DIAGRAM

Source type logic

200V class 200V-240V+10%, -15% 50/60Hz±5%

400V class 380V-480V+10%, -15% 50/60Hz±5%

 

 

 

R(L1)

 

SJ700/SJ700B

 

 

 

 

 

 

 

 

S(L2)

 

 

 

 

R

T(L3)

 

 

 

 

 

 

 

(*2)Remove connection with J51

T(J51) (*2)

 

when RoTo power is supplied

 

externally

 

 

R0

 

 

Control power source

T0

 

 

 

 

 

P24

 

 

 

Short-circuit

PLC

 

 

 

CM1

 

 

 

 

bar

 

 

 

 

 

 

 

Forward command

 

 

FW

 

 

 

 

 

 

 

 

 

 

8

 

 

Intelligent input

 

 

7

 

 

 

 

6

 

 

terminals (8 terminals)

 

 

 

 

 

 

 

 

1

 

 

 

-

+

FM

 

DC24V

FM monitor output

 

 

 

 

 

 

 

(PWM)

 

 

CM1

 

 

 

 

 

 

 

 

Thermistor

TH

 

 

Frequency

 

 

 

 

 

 

H

 

 

setting device

 

 

 

 

500-2kΩ

 

DC0-10V

O

 

 

DC0-10V

 

(12bit)

 

 

DC-10-+10V

O2

 

10kΩ

 

 

 

 

(12bit)

 

 

 

DC4-20mA(12bit)

OI

10kΩ

 

 

DC10V

 

 

 

 

100Ω

 

 

 

L

 

 

 

 

 

 

AM monitor output

DC0-10V(10bit)

AM

 

 

 

 

 

 

(Analog output)

 

 

AMI

 

 

AM monitor output

 

 

 

 

 

 

 

 

(G)

(Analog output)

DC4-20mA(10bit)

 

 

 

 

 

 

 

 

 

(T1)U

 

 

 

 

 

 

 

 

 

(T2)V

 

 

 

 

IM

 

 

 

 

(T3)W

 

 

 

 

 

 

 

 

 

(+1)PD

 

 

 

 

DC link choke(Note1)

 

 

 

 

 

 

 

 

 

 

 

Dynamic braking unit (BRD)

 

 

(+)P

 

 

 

 

 

 

 

 

 

RB

 

 

P

RB

 

AL1

RB

 

 

 

 

 

 

 

AL2

P

 

(-)N

 

 

N

R1

 

 

 

 

 

AL1

RB

 

 

 

 

 

 

R2

 

 

 

 

 

 

 

 

AL2

P

 

 

SJ700: For 30kW(40HP) and over

 

 

 

SJ700B: For 37kW(50HP) and over

 

 

AL0

 

 

 

 

 

SJ700: For up to 22kW(30HP)

Intelligent relay

 

SJ700B: For up to 30kW(40HP)

AL2

 

 

P P

AL

circuit)

AL1

 

 

 

 

 

(Inverter)

 

 

operating

 

*1

 

 

 

 

 

 

 

output contacts

 

 

RB RB

 

 

 

(default:alarm output)

 

AL2

 

15

 

(

 

 

 

N Braking resistor(RB)

(To

 

 

*1

The alarm relay contacts ALO and AL2

 

 

when it is in Trip Mode or when input

 

 

11

 

Power is OFF,by factory default setting. )

 

Intelligent output terminals

 

 

 

 

 

 

 

 

(5 terminals)

 

 

 

 

 

CM2

 

 

 

 

 

 

 

 

SP

 

 

 

 

 

 

 

 

 

SN

 

 

 

 

 

 

 

 

 

RP

 

 

 

 

RS-485

 

 

 

 

 

 

 

 

Serial communication port

 

SN

Expansion card 1

Expansion card 2

Option

Terminal Name

FW, 1, 2, 3, 4, 5, 6, 7, 8

FM, TH

H, O, O2, OI, AM, AMI

11,12,13,14,15

 

 

Customer wiring

Common terminal

P24

CM1

L

CM2

 

 

 

 

(Outside the inverter)

 

 

 

 

 

 

 

Note1:Please be sure to connect DC reactor attached to 1850HF,2200HF,3150HF and 4000HF.

24

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Image 25
Hitachi SJ700B manual Connecting Diagram, Source type logic
Page 24 Page 26

SJ700B, SJ700 specifications

The Hitachi SJ700 and SJ700B series are renowned variable frequency drives (VFDs) that represent a significant advancement in motor control technology. Designed for industrial applications, these drives offer a versatile solution for managing motor speed, torque, and efficiency in a variety of settings.

One of the main features of the SJ700 and SJ700B series is their compact design. This allows for easy installation and integration into existing systems, which is crucial for minimizing downtime during upgrades or replacements. The drives support multiple mounting orientations, facilitating applications with space constraints.

Another standout characteristic is their advanced control algorithms. The SJ700 series uses vector control technology, which optimizes the performance of both AC and induction motors. This ensures high precision in speed and torque control, making it suitable for processes that require fine adjustments. The drives also feature automatic tuning capabilities, which allow for quick commissioning while minimizing the need for extensive parameter adjustments.

The SJ700 and SJ700B series are designed with energy efficiency in mind. They utilize advanced regenerative braking technology that recovers energy, reducing power consumption and improving overall system efficiency. Furthermore, these drives incorporate energy-saving features that optimize motor operation based on load requirements, contributing to a lower carbon footprint.

These drives come equipped with robust communication capabilities. They support various communication protocols such as Modbus, Profibus, and EtherCAT, making them easily integrable with modern automation systems. This flexibility allows for real-time monitoring and control, enhancing operational visibility and efficiency.

Reliability is another hallmark of the SJ700 series. Built with high-quality components, these drives exhibit excellent thermal management and protection against overvoltage, overload, and short circuits. The SJ700B variant boasts additional features such as enhanced fault diagnostics and improved environmental protection, making it suitable for more demanding applications.

In conclusion, the Hitachi SJ700 and SJ700B series variable frequency drives stand out in terms of compact design, advanced control technologies, energy efficiency, versatile communication options, and robust reliability. These features make them an ideal choice for a wide range of industrial applications, from manufacturing automation to HVAC systems, ensuring optimal performance and cost savings for users.
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