TORQUE CHARACTERISTICS

Typical torque performance based on V/f pattern (top) is shown below.

V/f pattern

V

 

 

 

 

100(%)

 

 

 

 

1

50

100

(Hz)f

1

60

120

 

 

150

 

 

130

Maximum torque

 

(for short time period,

 

125

maximum torque boosting)

(%)

100

(Continuous

operating torque)

torque

95

 

90

 

80

(Base frequency 60Hz)

75

Output

50

 

 

45

(Base frequency 50Hz)

 

 

25

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 1

6 10

20

30

40

50

60

70

80

90

100

110

120

 

 

6

 

25

 

 

50

 

 

75

 

 

100

 

 

 

 

 

 

Frequency (Hz)

 

 

 

 

 

 

DERATING DATA

The L300P series can be used at ambient temperature of –10˚C to 50˚C. However, when using at 40˚C or over, derating is required.

(1)Ambient temperature 40°C

 

 

 

 

 

 

 

 

 

 

 

100

(200V class)

 

 

 

015–150LFU2

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

450LFU2

 

 

 

)

 

 

 

 

 

 

 

 

 

 

 

 

185LFU2

 

)

 

 

%

90

 

 

 

 

 

 

 

 

 

 

 

 

%

90

 

to the rating:

 

 

 

 

 

 

 

 

 

 

 

370LFU2

 

to the rating:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

current

80

 

 

 

 

 

 

 

 

 

 

 

220LFU2

current

80

 

 

 

 

 

 

 

 

 

 

 

550LFU2

 

 

 

 

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

300, 750LFU2

 

 

70

Output

Ratio

60

 

 

 

 

 

 

 

 

 

 

 

 

Output

Ratio

60

(

 

 

 

 

 

 

 

 

 

 

 

 

(

 

 

55

0.51

2

3

4

5

6

7

8

9

10

11

12

 

 

55

 

 

 

 

 

 

 

 

Carrier frequency (kHz)

 

 

 

(2)Ambient temperature 50°C

 

 

 

 

 

 

 

 

 

 

 

100

(200V class)

 

 

 

 

015-075LFU2

 

 

100

 

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

%

 

 

 

 

 

 

 

 

 

 

 

 

450LFU2

 

)

 

 

to the rating:

90

 

 

 

 

 

 

 

 

 

 

 

 

 

the rating: %

90

Output current

80

 

 

185LFU2

 

 

 

 

 

 

 

220LFU2

Output current

80

 

 

 

 

 

 

 

 

 

 

 

370LFU2

 

 

 

 

 

 

 

 

 

 

 

 

 

70

 

 

 

150LFU2

 

 

 

 

 

550LFU2

70

Ratio

 

 

110LFU2

 

 

 

 

 

 

 

 

Ratio to

 

 

 

 

 

 

 

 

 

 

300LFU2

 

60

 

 

 

 

 

 

 

 

 

 

 

750LFU2

60

55

 

 

 

 

 

 

 

 

 

 

 

 

55

(

0.51

2

3

4

5

6

7

8

9

10

11

12

(

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Carrier frequency (kHz)

 

 

 

 

 

 

 

 

 

900HFU2/E2

 

 

(400V class)

 

 

 

015–220HFU2/E2

 

 

 

 

 

 

 

 

 

 

 

450,550HFU2/E2

 

 

 

 

 

 

 

300HFU2/E2

 

 

 

 

 

 

 

 

 

 

 

 

370HFU2/E2

 

 

1100, 1320HFU2/E2

 

 

 

750HFU2/E2

 

 

 

 

 

 

 

 

 

 

 

0.51

2

3

4

5

6

7

8

9

10

11

12

 

 

 

 

 

 

Carrier frequency (kHz)

 

 

 

 

 

 

1100, 1320HFU2/E2

(400V class) 900HFU2/E2

 

015–075HFU2/E2

185HFU2/E–220HFU2/E2

 

550HFU2/E

 

 

 

 

 

 

 

 

 

 

 

450HFU2/E2

 

150HFU2/E2

 

 

 

 

 

 

370HFU2/E2

 

 

 

 

 

 

 

300HFU2/E2

 

110HFU2/E2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

750HFU2/E2

0.51

2

3

4

5

6

7

8

9

10

11

12

 

 

 

 

 

Carrier frequency (kHz)

28

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Image 29
Hitachi L300P manual Torque Characteristics, Derating Data

L300P specifications

The Hitachi L300P is a versatile and highly efficient variable frequency drive (VFD) known for its robust performance and reliability across various industrial applications. This drive is part of Hitachi's renowned L-series, designed to provide precise motor control and energy savings, making it a popular choice among engineers and system integrators.

One of the standout features of the Hitachi L300P is its advanced vector control technology. This technology enables the drive to deliver superior torque control and operational efficiency, which is crucial for applications requiring high performance and accuracy. The L300P's sensorless vector control capability allows it to maintain optimal performance even in varying load conditions, ensuring that motors run smoothly and efficiently.

The L300P also boasts a wide input voltage range, accommodating different voltage requirements from 200V to 600V. This flexibility makes it suitable for diverse global applications without the need for voltage converters. Additionally, the drive supports a broad range of output frequencies, allowing for seamless integration with various motor types.

Another significant aspect of the L300P is its built-in PLC functionality. This feature enables users to implement simple control tasks directly within the drive, reducing the need for external controllers and minimizing installation space and complexity. With programmable logic capabilities, users can optimize their processes and add custom functionalities to meet specific operational requirements.

The L300P is equipped with comprehensive protection features, including overcurrent protection, overvoltage protection, and motor stall prevention. These safety mechanisms ensure that the drive and the connected motors remain protected under adverse operating conditions, enhancing system reliability and reducing maintenance costs.

In terms of user interface, the L300P includes an intuitive keypad that allows for easy parameter setting and monitoring. The display provides real-time information about operational status and performance metrics, enabling users to make informed decisions quickly.

Energy efficiency is another key characteristic of the L300P. By utilizing advanced control algorithms and motor management techniques, the drive significantly reduces energy consumption, making it an environmentally friendly choice for industries looking to lower their carbon footprint.

Overall, the Hitachi L300P combines advanced technology, robust performance, and user-friendly features, making it a pivotal component in modern industrial automation and control systems. With its flexibility and efficiency, it stands out as a reliable solution for a wide range of applications, from HVAC systems to conveyor control and beyond.