DIFFERENCE and COMPATIBILITY of SJ300 series and SJ700 series

 

 

 

Items

 

SJ300 series

SJ700 series

Copying the parameter settings

 

You can copy the parameter settings from the SJ300 series into the SJ700 series.

 

(You cannot copy the parameter settings from the SJ700 series to the SJ300 series because the SJ700

 

 

 

 

 

series has many new functions and additional parameters.)

Parameter display mode.

 

No display mode selection.

Basic display mode/Data comparison function addition.

 

(full display)

Note:basic display mode [factory setting])

 

 

 

 

 

 

To display all parameters, specify "00" for "b037".

 

 

 

Retry or trip parameter

Instantaneous power failure/under-voltage/

Instantaneous power failure/under-voltage:It sets

 

 

 

overvoltage/overcurrent:It sets up by b001.

up by b001.

 

 

 

 

 

 

overvoltage/overcurrent:It sets up by b008.

 

 

 

d001:

 

You can not change the output frequency

You can not change the output frequency

 

 

 

Output frequency monitoring

 

 

 

d007:

 

setting by using the and/or key.

setting by using the and/or key.

 

 

 

Scaled output frequency monitoring

 

 

Change function

 

A016:External frequency filter

Default:8

Default:31 Note 1

 

time const.

 

 

 

 

A038:Jog frequency setting

Setting range:0 to 999Hz

Setting range:

 

 

 

0.01 to 999Hz(0Hz setup is impossible)

 

 

 

A105:[OI]-[L] input start

Default:01(external start frequency)

Default:00(0Hz)

 

 

 

frequency enable

 

 

 

 

 

 

 

 

 

 

b012, b212, b312:

 

Setting upper limit:120%

Setting upper limit:100%

 

 

 

Electronic thermal function

 

 

 

C025:Terminal [15] function

Default:08(instantaneous power failure)

Default:40(cooling-fan speed drop)

 

 

 

 

 

 

 

 

Control

 

Removable

 

Removable

Removable

 

 

 

(You can mount the SJ300 series into the SJ700 series.)

 

Circuit

 

 

 

 

 

 

Position

 

Other model:same position. 055L/H:5mm upper part from SJ300. 300L/H:97mm upper part from SJ300.

 

 

 

 

 

 

 

 

110L/H

M6(Ground Screw)

M5(Ground Screw)

 

 

 

Screw diameter

300L

M8(Ground Screw)

M6(Ground Screw)

Terminal

 

 

450L

M10

M8

 

 

 

Main

 

 

370H

M6

M8

 

 

 

 

 

 

 

055 to 110L/H:10mm upper part from SJ300.

 

 

Circuit

 

Position

 

 

 

 

 

150 to 300L/H:20mm upper part from SJ300.550L:30mm upper part from SJ300.

 

 

 

 

 

Other model:same position.

 

 

 

 

Arrangement

 

055 to 110L/H:Two steps, 150 to 550L/H:One step

055 to 550L/H:One step

 

 

 

Others

 

150 to 220L/H:RB there is not a terminal.

150 to 220L/H:RB there is a terminal.

Easy-removable Dc bus Capacitor

 

All the models are possible.

15kW or more is possible.

Dynamic Brake circuit

 

 

up to 11kW

up to 22kW

 

 

 

055L

 

17

16

Minimum value of

 

075L

 

17

10

 

110L

 

17

10

resistor(Ω)

 

055H

 

50

35

 

 

 

075H

 

50

35

Dimensions

 

Installation

 

055L/H: SJ700 is in next larger enclosure vs. SJ300. All other models are the same enclosure size.

 

External radiating fin

 

055L/H:Those with no compatibility.075 to 550L/H:Those with compatibility. Note 2

 

 

 

 

Digital operator position

 

 

055L/H:5mm upper part from SJ300. 300L/H:97mm upper part from SJ300.

 

 

Other model:same position.

 

 

 

 

 

 

 

 

 

 

SJ-DG

 

Those with compatibility.

 

 

 

 

SJ-FB

 

 

 

 

 

 

 

 

Option boards

 

SJ-DN / SJ-DN2

 

Those with compatibility.

 

 

SJ-LW

 

Note:Since the SJ700 series has many new functions and additional parameters,

 

 

 

 

 

 

 

 

some functions of the SJ-DN, SJ-LW, and SJ-PBT (option boards conforming to the open network

 

 

 

SJ-PBT

 

specifications) cannot be implemented on the SJ700 series. SJ-DN2 has compatibility to SJ700.

 

 

 

 

 

 

 

 

 

Option position

 

Other model:same position. 055L/H:5mm upper part from SJ300. 300L/H:97mm upper part from SJ300.

Note1:Since a response falls the V/F characteristic curve selection SLV should make this setup small.

Note2:370, 450L/H and 550H:Metal fittings differ.

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Image 31
Hitachi SJ700B manual Those with compatibility, Option boards, Basic display mode/Data comparison function addition

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.