Hitachi AN072803-1 Istruzioni per l'installazione e il funzionamento

Application Note:

EMI Filters for CE Noise

Compliance

Please refer also to the

Inverter Instruction Manual

AN072803-1

Hitachi America, Ltd.

©2003 Hitachi America, Ltd.

EMI Filters for the SJ300/L300P

NF-CEH Series

The following describes the components Hitachi offers to meet CE EMI requirements, Class A and

Class B. The NF-CEH Filters provide EMI attenuation to meet Class A. The addition of the FC-H

Ferrite will provide attenuation sufficient to meet Class B. If you have further questions, please

contact Hitachi or your Authorized Sales Representative.

1. EMI Filter Specifications

Model Name Model Code Power Rated Current Applicable Inverter Rating Weight

Source 200V Class 400V Class kg(lbs.)

NF-CEH7 1694-6340 7A 0.4-0.75kW 0.75-2.2kW 0.7(1.5)

NF-CEH10 1694-6341 10A 1.5kW 3.7kW 0.7(1.5)

NF-CEH20 1694-6342 20A 2.2-3.7kW 5.5-7.5kW 1.0(2.2)

NF-CEH30 1694-6343 30A 5.5kW 11kW 1.3(2.9)

NF-CEH40 1694-6344 40A 7.5kW 15kW 1.4(3.1)

NF-CEH50 1694-6345 3-phase 50A - 18.5kW 2.9(6.4)

NF-CEH60 1694-6346 200V 60A 11kW 22kW 3.0(6.6)

NF-CEH80 1694-6347 /400V 80A 15kW 30kW 3.6(7.9)

NF-CEH100 1694-6348 100A 18.5kW 37kW 4.3(9.5)

NF-CEH150 1694-6349 150A 22-30kW 45-55kW 9.0(19.8)

NF-CEH200 1694-6350 200A 37kW - 16.0(35.2)

NFCEH250 1694-6351 250A 45kW - 16.0(35.2)

NF-CEH300 1694-6352 300A 55kW - 23.0(50.6)

2/7

2. Ferrite Core

A ferrite core is required to meet class B limits.

Model Name Model Code Applicable EMI filters Weight kg(lbs.)

FC-H40 1694-6330 NF-CEH7 to NF-CEH40 0.15(0.33)

FC-H300 1694-6331 NF-CEH50 to NF-CEH300 0.25(0.55)

3. Conformity to EMC Directive

Model Name EMC Class B Limits EMC Class A Limits

SJ300 Yes with NF-CE Filter and Ferrite Core Yes with NF-CE Filter

L300P Yes with NF-CE Filter and Ferrite Core Yes with NF-CE Filter

4. Connection Diagrams

Ferrite Core *1

Inverter

Motor

IM

NF-CE *2

L1’

L2’

L3’

L1

L2

L3

U(T1)

V(T2)

W(T3)

R(L1)

S(L2)

T(L3)

Power

Supply

Note 1: A ferrite core is required to meet EMC class B limits.

Note 2: Use shielded wires between the inverter and the motor, and be sure not to exceed 20m

(22yd).

3/7

5. Dimensions

[NF-CEH7 to CEH40] [Unit: mm]

4/7

[Ferrite Core FC-H40] [Unit: mm]

Model Name ABCD

FC-H40 51.5 24.5 18.0 34.0

Dimensions

(

Unit: mm

)

[Ferrite Core FC-H300] [Unit: mm]

5/7

6. Noise Reduction Data

(1) SJ300-055HFE(U) without a noise filter

6/7

(2) SJ300-055HFE(U) with NF-CEH20 and FC-H40

7/7

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