WIRING and ACCESSORIES

Power Supply

Fuse

R

S

T

PD

(L1)

(L2)

(L3)

(+1)

 

 

 

P

Inverter

 

(+)

 

 

R0

 

 

RB

T0

 

 

 

(-)N

(T1)

(T2)

(T3)

 

U

V

W

 

Input

Motor

 

Wiring

 

 

Fuse

Output

Model

Power Lines

 

Signal

Voltage

 

(Class J)

(kW(HP))

 

AWG

mm2

Lines

 

 

 

 

1.5(2)

L300P-015LFU2

AWG 14

 

2.1

 

10

 

2.2(3)

L300P-022LFU2

AWG 14

 

2.1

 

15

 

3.7(5)

L300P-037LFU2

AWG 10

 

5.3

 

20

 

5.5(8)

L300P-055LFU2

AWG 8

 

8.4

 

30

 

7.5(10)

L300P-075LFU2

AWG 6

 

13.3

 

40

 

11(15)

L300P-110LFU2

AWG 4

 

21.2

0.75mm2

60

200V

15(20)

L300P-150LFU2

AWG 2

 

33.6

70

 

shielded

 

18.5(25)

L300P-185LFU2

AWG 4 *2

 

21.2 *2

90

 

 

wire

 

22(30)

L300P-220LFU2

AWG 1/0

 

53.5

100

 

 

 

 

30(40)

L300P-300LFU2

AWG 2 *2

 

33.8 *2

 

150

 

37(50)

L300P-370LFU2

AWG 1 *2

 

42.4 *2

 

175

 

45(60)

L300P-450LFU2

AWG 1 *2(75°C)

 

42.4 *2

 

200

 

55(75)

L300P-550LFU2

AWG 2/0 *2

 

67.4 *2

 

250

 

75(100)

L300P-750LFU2

AWG 3/0 *2

 

85.0 *2

 

300

 

1.5(2)

L300P-015HFU2

AWG 18

 

0.8

 

10

 

2.2(3)

L300P-022HFU2

AWG 16

 

1.3

 

10

 

3.7(5)

L300P-040HFU2

AWG 14

 

2.1

 

15

 

5.5(8)

L300P-055HFU2

AWG 12

 

3.3

 

15

 

7.5(10)

L300P-075HFU2

AWG 10

 

5.3

 

20

 

11(15)

L300P-110HFU2

AWG 8

 

8.4

 

30

 

15(20)

L300P-150HFU2

AWG 6

 

13.3

 

35

400V

18.5(25)

L300P-185HFU2

AWG 6

 

13.3

0.75mm2

50

22(30)

L300P-220HFU2

AWG 4

 

21.2

shielded

50

 

 

wire

 

30(40)

L300P-300HFU2

AWG 3

 

26.7

70

 

 

 

 

37(50)

L300P-370HFU2

AWG 4 *2

 

21.2 *2

 

80

 

45(60)

L300P-450HFU2

AWG 1

 

42.4

 

100

 

55(75)

L300P-550HFU2

AWG 2 *2

 

33.8 *2

 

125

 

75(100)

L300P-750LFU2

AWG 1 *2

 

42.4 *2

 

150

 

90(125)

L300P-900LFU2

AWG 1 *2(75°C)

 

42.4 *2

 

200

 

110(150)

L300P-1100LFU2

AWG 2/0 *2

 

67.4 *2

 

225

 

132(175)

L300P-1320LFU2

AWG 2/0 *2

 

67.4 *2

 

300

Note 1: Field wiring connection must be made by a UL and c-UL listed closed-loop terminal connector sized for the wire gauge involved. Connector must be fixed using the crimping tool specified by the connector manufacturer.

 

Note 2: Be sure to use bigger wires for power lines if the distance exceeds 20m(66ft).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

Function

 

 

 

 

 

 

 

This is useful in suppressing harmonics induced on the power supply lines, or

 

 

 

Input side AC reactor

when the main power voltage imbalance exceeds 3% (and power source capac-

 

 

 

ity is more than 500kVA), or to smooth out line fluctuations. It also improves the

 

 

 

 

 

 

 

 

power factor.

 

 

 

 

 

 

 

 

 

 

 

 

EMI filter

This filter reduces the conducted noise in the power supply wiring between the invert-

 

 

 

er and the power distribution system. Connect it to the inverter primary (input side).

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical noise interference may occur on nearby equipment such as a radio

 

 

 

 

Radio noise filter

receiver. This magnetic choke filter helps reduce radiated noise (can also be

 

 

 

 

used on output).

 

 

 

 

 

 

Radio noise filter

This capacitive filter reduces radiated noise from the main power wires in the

 

 

 

 

(Capacitive filter)

inverter input side.

 

 

 

 

 

 

DC link choke

The choke suppresses harmonics generated by the inverter.

 

 

 

 

 

However, it will not protect the input diode bridge rectifier.

 

 

 

 

 

 

 

 

 

 

 

Braking resistor

Braking components are useful for increasing the inverter's control torque for high

 

 

 

Braking unit

duty-cycle (on-off) applications, and improving the decelerating capability.

 

 

 

 

 

 

 

 

 

 

Output side noise filter

Reduces radiated noise from wiring in the inverter output side.

 

 

 

 

 

 

 

 

 

 

 

 

Electrical noise interference may occur on nearby equipment such as a radio

 

 

 

Radio noise filter

receiver. This magnetic choke filter helps reduce radiated noise (can also be

 

 

 

 

used on input).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This reactor reduces the vibration in the motor

caused by

the inver-

 

 

 

AC reactor

ter's switching waveforms, by smoothing the

waveforms to

approxi-

 

 

 

mate commercial power quality. It is also useful when wiring from the inverter to

 

 

 

 

IM

Motor

 

the motor is more than 10m in length, to reduce harmonics.

LCR filter

Sine wave shaping filter for the output side.

Note: An EMI filter is required for European EMC directive and C-Tick, but the others are not for this purpose.

23

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Hitachi L300P manual Power Supply Fuse Inverter, Motor
Page 23 Page 25

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.
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