TORQUE CHARACTORISTIC

SJ700 Series / Maximum Torque with Short - Time Rating

Base frequency = 60Hz

Sensorless vector control

 

200

0.4～55kW

 

 

 

 

75～132kW

 

 

180

 

 

 

 

 

55～132kW

 

 

 

 

 

 

 

150

 

 

（65Hz max.）

 

 

 

 

 

 

(%)

130

 

 

0.4～3.7kW

 

 

 

Output torque

 

 

 

 

5.5～22kW

60

 

30～45kW

 

 

55

 

 

 

 

 

45

 

 

 

 

 

0.3

46

60 65

100

120

Output frequency (Hz)

V/f control (maximum torque boosting)

 

150

 

 

 

 

 

130

 

 

 

 

 

 

 

55～132kW

0.4～3.7kW

(%)

 

 

 

100

 

 

 

 

torque

 

 

 

5.5～22kW

 

 

 

30～45kW

 

 

 

 

Output

60

 

 

 

 

55

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

0.3 6

20

60 65

100

120

Output frequency (Hz)

Base frequency = 50Hz

Sensorless vector control

 

 

0.4～55kW

 

 

 

 

200

 

75～132kW

 

 

 

180

 

 

 

 

 

 

 

 

 

 

150

 

 

 

55～132kW

 

(%)

 

 

 

 

 

 

 

 

 

0.4～3.7kW

Output torque

 

 

 

 

109

 

 

 

 

5.5～22kW

60

 

 

30～45kW

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

35

 

 

 

 

 

 

0.3

38

50

65

100

120

Output frequency (Hz)

V/f control (maximum torque boosting)

 

150

 

 

 

 

 

 

130

 

 

 

 

 

(%)

109

 

55～132kW

 

 

0.4～3.7kW

100

 

 

 

5.5～22kW

torque

 

 

 

 

 

 

 

 

 

30～45kW

 

Output

60

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

35

 

 

 

 

 

 

0.3 5

16.7

50

65

100

120

Output frequency (Hz)

SJ700B Series / Maximum Torque with Short - Time Rating

Base frequency = 60Hz

Sensorless vector control

 

150

11～75kW

 

 

 

 

90～160kW

 

 

 

120

 

 

 

 

 

55～160kW

 

 

 

 

 

 

110

 

（65Hz max.）

 

(%)

100

 

 

 

 

 

 

 

 

 

Output torque

 

 

 

 

11～22kW

50

 

30～45kW

 

 

 

45

 

 

 

 

 

40

 

 

 

 

 

0.5

46

60 65

100

120

 

 

Output frequency (Hz)

 

 

V/f control (maximum torque boosting)

 

130

 

 

 

 

 

110

 

 

 

 

 

 

 

55～160kW

 

 

(%)

85

 

 

 

 

torque

 

 

 

11～22kW

 

 

 

30～45kW

 

 

 

 

 

 

 

 

 

Output

50

 

 

 

 

45

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

0.5 6

20

60 65

100

120

Output frequency (Hz)

Base frequency = 50Hz

Sensorless vector control

 

 

11～75kW

 

 

 

 

150

 

90～160kW

 

 

 

120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55～132kW

 

(%)

 

 

 

 

 

 

Output torque

109

 

 

 

 

11～22kW

50

 

 

30～45kW

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

40

 

 

 

 

 

 

0.5

38

50

65

100

120

Output frequency (Hz)

V/f control (maximum torque boosting)

 

130

 

 

 

 

 

 

110

 

 

 

 

 

(%)

92

 

 

 

 

 

85

 

55～132kW

 

 

11～22kW

torque

 

 

 

 

 

 

 

 

 

30～45kW

 

Output

50

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

30

 

 

 

 

 

 

0.5 5

16.7

50

65

100

120

Output frequency (Hz)

28

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Hitachi SJ700B manual Torque Charactoristic, SJ700 Series / Maximum Torque with Short Time Rating, Output frequency Hz
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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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