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Electromagnetically Compatible Installation Guide Book
Inverter Series
NE-S1
Hitachi Europe GmbH

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   Summary of Contents for Hitachi NE-S1

  • Page 1

    Electromagnetically Compatible Installation Guide Book Inverter Series NE-S1 Hitachi Europe GmbH...

  • Page 2: Table Of Contents

    C O N T E N T S CHAPTER 1 – WARNINGS AND INSTRUCTIONS ..........1-1 CHAPTER 2 – ELECTROMAGNETICALLY COMPATIBLE INSTALLATION OF DRIVES AND DRIVE SYSTEMS .......... 2-1 ....................... 2-1 NTRODUCTION ...... 2-2 ELECTION OF LINE FILTER TO REDUCE LINE CONDUCTED INTERFERENCE ....................

  • Page 3: Chapter 1 - Warnings And Instructions

    WARNING The Hitachi NE-S1 series is not intended for sales to general public but a professional equipment to be used in trades, professions and industries. If installed according to the following directions, the frequency inverter comply with the...

  • Page 4: Chapter 2 - Electromagnetically Compatible

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems Chapter 2 – Electromagnetically Compatible Installation of Drives and Drive Systems Introduction This brochure describes the electromagnetically compatible setup of your drive or your drive system. (Electro Magnetic Compatibility = EMC) Read this information carefully and follow the instructions.

  • Page 5: Selection Of Line Filter To Reduce Line-conducted Interference

    To reduce line-conducted interference, use the appropriate line filter for each frequency inverter. The table below show you a list of the available line filters for your Hitachi frequency inverter. The all line filters are built in the so-called footprint style, are fitted behind the respective frequency inverter, and thus require no additional space for installation.

  • Page 6: Filter Installation

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems Filter installation The connecting cable between filter and frequency inverter must be as short as possible and laid separate from other cables/lines. As user you must ensure that the HF impedance between frequency inverter, filter and ground is as small as possible: ...

  • Page 7

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems The amount of line-conducted interference also increases as motor cable length increases. Adherence to the interference limits for line-conducted interference is shown as follows: Filter: FPF-9120-10-SW, FPF-9120-14-SW, FPF9120-24-SW (Switch position 1: High leakage current) EN61800-3 Cable length Inverter carrier frequency...

  • Page 8: Minimizing Radiated Interference

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems Minimizing radiated interference The frequency inverter of series NE-S1 meet the limits of EN61800-3, C1/C2/C3, for radiated interference, if the specified line filter is used and installation is performed according to our instructions.

  • Page 9: Using Emc Compliant Cables

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems Using EMC compliant cables In order to reduce electromagnetic emission caused by motor cables and to increase EMI immunity for control cables, shielded cables have to be used. Using this shielding can reduce the interference coupled into and out of the cable (please also refer to the previous chapter „Minimizing radiated interference“).

  • Page 10: Installing The Motor Cable

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems Installing the motor cable If you use an EMC line filter or would like to observe certain limits of line-conducted interference, the motor cable which you use must be shielded. The shield is to be grounded on both sides, over a large area.

  • Page 11: Shielding And Grounding For Installation In Switch Cabinets

    Observe the requirements of European standard EN60204-1, "Electrical Equipment of Industrial Machinery." You get optimum EMC only if you properly arrange and mount the Hitachi frequency inverter, the appropriate line filter, and the other equipment which might be necessary, on a metal mounting plate in accordance with the following mounting instructions.

  • Page 12

    Chapter 2 – Electromagnetically compatible installation of drives and drive systems The following figure shows the required EMC compliant connection to the motor: good HF-connection between required EMC-cable connection heat sink and motor housing metall box W PE...

  • Page 13: Chapter 3 - Influence Of The Motor Cable Length

    Chapter 3 – Influence of the motor cable length Chapter 3 – Influence of the Motor Cable Length Shielded motor cables have quite a high cable capacity towards ground, which increases linearly as cable length increases. A typical rule-of-thumb figure is 200 pF per meter of cable. But these figures vary among different types of cables and are also dependent on the current-carrying capacity.

  • Page 14: Chapter 4 - Further Notes

    Chapter 4 – Further Notes Chapter 4 – Further Notes Influence of ground fault monitoring devices In the line filter, capacitors are placed between the phases and ground, which can cause larger charge currents to flow to ground when the filter is first switched on. The amount of this flow has already been minimized by constructional circuit details.

  • Page 15: Chapter 5 - Technical Specifications And Dimensions Of Ne-s1 Filter

    Chapter – Technical specifications and dimensions of NE-S1 filter Chapter 5 – Technical Specifications and Dimensions of NE-S1 Filter Type: FPF- FPF-9120-10-SW FPF-9120-14-SW FPF-9120-24-SW FPF-9340-05-SW FPF-9340-10-SW Specification: Voltage in V 240 +5% 240 +5% 240 +5% 460 +5% 460 +5% Current in A at 40°C...

  • Page 16

    Chapter – Technical specifications and dimensions of NE-S1 filter FPF-9120-10-SW FPF-9120-14-SW/ FPF-9120-24-SW...

  • Page 17

    Chapter – Technical specifications and dimensions of NE-S1 filter FPF-9340-05-SW/ FPF-9340-10-SW...

  • Page 18: Chapter 6 -harmonics

    Chapter 6 – Harmonics Chapter 6 – Harmonics “EN/IEC 61000-3-2 “ and “EN/IEC 61000-3-12” Frequency converters, which are connected to the public low voltage power supply must comply with limits for harmonics currents. For equipment with input current ≤ 16A per phase, the limits according to EN/IEC 61000-3-2 are applid, and for equipment with input current >16A and ≤...

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