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Precautions for EMC (Electromagnetic Compatibility)

Precautions for EMC (Electromagnetic Compatibility)

You are required to satisfy the EMC directive (89/336/EEC) when using an L100 inverter in a European country. To satisfy the EMC directive and to comply with standard, follow the checklist below.

WARNING: This equipment should be installed, adjusted, and serviced by qualified personal familiar with construction and operation of the equipment and the hazards involved. Failure to observe this precaution could result in bodily injury.

1.The power supply to L100 inverter must meet these specifications:

a.Voltage fluctuation+/- 10% or less

b.Voltage imbalance +/- 3% or less

c.Frequency variation +/- 4% or less

d.Voltage distortion THD = 10% or less

2.Installation measure:

a.Use a filter designed for L100 inverter

3.Wiring:

a.Shielded wire (screened cable) is required for motor wiring, and the length must be less than 50 meters.

b.The carrier frequency setting must be less than 5 kHz to satisfy EMC require- ments.

c.Separate the main circuit from the signal/process circuit wiring.

4.Environmental conditions - when using a filter, follow these guidelines:

a.Ambient temperature: -10 to 40 °C

b.Humidity: 20 to 90% RH (non-condensing)

c.Vibration: 5.9 m/sec2 (0.6 G) 10 ~ 55Hz

d.Location: 1000 meters or less altitude, indoors (no corrosive gas or dust)

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Hitachi L100 instruction manual Precautions for EMC Electromagnetic Compatibility
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L100 specifications

The Hitachi L100 series is a versatile range of variable frequency drives (VFDs) designed to enhance performance in various industrial applications. Known for their reliability and efficiency, these drives are widely used in motors for pumps, fans, compressors, and conveyors.

One of the main features of the Hitachi L100 is its impressive control capabilities. The drive supports both scalar and vector control modes, allowing for precise speed and torque management. This flexibility ensures optimal motor performance across different load conditions. Additionally, the L100 series offers an impressive speed range, which can accommodate a wide variety of applications, from low-speed to high-speed requirements.

The L100 is equipped with built-in functionality for energy saving. By utilizing advanced control algorithms and auto-tuning features, the drive optimizes energy consumption, reducing operational costs and contributing to improved overall system efficiency. The energy-saving mode is particularly beneficial in applications where load conditions frequently change.

Another hallmark of the Hitachi L100 is its robust communication capabilities. The drive supports various communication protocols including Modbus and Ethernet, making it easy to integrate into existing control systems. This connectivity allows for real-time monitoring and diagnostics, which aids in predictive maintenance and minimizes downtime.

In terms of user-friendliness, the L100 series includes a clear, intuitive keypad that simplifies programming and operation. The drive also features a wide range of customizable parameters, enabling users to easily tailor the settings to suit specific application requirements. Additionally, the inclusion of a customizable PID controller allows users to refine process control automatically.

Safety is a priority in the design of the Hitachi L100. The drive comes with various built-in safety features such as overvoltage, overload, and short-circuit protection, ensuring reliable operation in challenging environments. Furthermore, it complies with global safety standards, making it suitable for international applications.

Lastly, the L100's compact design ensures easy installation and minimizes the space required in control cabinets. This is especially advantageous in facilities where space is at a premium. Overall, the Hitachi L100 series represents a combination of advanced technology, user-friendly features, and reliable performance, making it a popular choice for industrial automation solutions.
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