2－7

27

Basic System Description

A motor control system will obviously include a motor and inverter, as well as a circuit breaker or fuses for safety. If you are connecting a motor to the inverter on a test bench just to get started, that’s all you may need for now. But a system can also have a variety of additional components. Some can be for noise suppression, while others may enhance the inverter’s braking performance. The figure and table below show a system with all the optional components you might need in your finished application.

From power supply

Breaker,

MCCB or

GFI

L1 L2 L3

+1

Inverter

+

GND

T1 T2 T3

Motor

Thermal switch

Name

Function

Breaker /

A molded-case circuit breaker (MCCB), ground fault

disconnect

interrupter (GFI), or a fused disconnect device. NOTE:

 

The installer must refer to the NEC and local codes to

 

ensure safety and compliance.

Input-side

This is useful in suppressing harmonics induced on the

AC Reactor

power supply lines and for improving the power factor.

 

WARNING: Some applications must use an input-side

 

AC Reactor to prevent inverter damage. See Warning on

 

next page.

Radio noise

Electrical noise interference may occur on nearby

filter

equipment such as a radio receiver. This magnetic choke

 

filter helps reduce radiated noise (can also be used on

 

output).

EMI filter (for

Reduces the conducted noise on the power supply wiring

CE applications,

between the inverter and the power distribution system.

see Appendix D)

Connect to the inverter primary (input) side.

 

EU version (with a suffix of -FEF have integrated EMC

 

Filter, which is category C1 for 200V class and C2 for

 

400V class.)

Radio noise

This capacitive filter reduces radiated noise from the

filter (use in

main power wires in the inverter input side.

non-CE

 

applications)

 

DC link choke

Suppress harmonics generated by the inverter.

 

However, it will not protect the input diode bridge

 

rectifier.

Radio noise

Electrical noise interference may occur on nearby

filter

equipment such as a radio receiver. This magnetic choke

 

filter helps reduce radiated noise (can also be used on

 

input).

Output-side

This reactor reduces the vibration in the motor caused

AC Reactor

by the inverter’s switching waveforms, by smoothing the

 

waveform to approximate commercial power quality. It

 

is also useful to reduce harmonics when wiring from the

 

inverter to the motor is more than 10m in length.

LCR filter

Sine wave shaping filter for output side.

and

Inverter

installation

Mounting

installation

Inverter

Mountingand

 

 

NOTE: Note that some components are required for regulatory agency compliance (see Chapter 5 and Appendix D).

Page 53 Page 55
Page 54
Image 54
Hitachi CP-X200 instruction manual Basic System Description, Inverter
Page 53 Page 55

CP-X200 specifications

The Hitachi CP-X200 is a versatile and robust projector designed to cater to the needs of educational and business environments. It combines affordability with high-quality performance, making it an attractive option for various presentations and multimedia applications.

At the heart of the CP-X200 is its high brightness capability, with a lumen output of 3,000 ANSI lumens. This feature enables the projector to deliver clear and vibrant images even in well-lit rooms. The resolution of XGA (1024 x 768 pixels) ensures that text and graphics are sharp, making it suitable for everything from classroom lectures to corporate presentations.

One of the standout characteristics of the Hitachi CP-X200 is its advanced lamp technology. The projector uses a long-lasting lamp that can provide up to 5,000 hours of usage in standard mode, allowing for extended intervals between lamp replacements. Additionally, the ECO mode can further enhance the lamp life, extending its longevity while reducing energy consumption.

The CP-X200 is equipped with a variety of connectivity options, including HDMI, VGA, and composite inputs, allowing users to easily connect it to various devices such as laptops, DVD players, and other multimedia systems. The inclusion of USB and RS-232 interfaces ensures compatibility with different control systems, making it a flexible choice for diverse setups.

Another significant feature is the projector's built-in 10-watt speaker, which provides decent audio output, eliminating the need for external speakers in smaller venues. The speaker system enhances presentations, ensuring that audio and visuals are cohesive, promoting better audience engagement.

Portability is another key aspect of the Hitachi CP-X200, which weighs just around 3.5 kg (approximately 7.7 lbs), allowing for easy transport between locations. Its compact design makes it suitable for both fixed installations and mobile use, catering to professionals who require a projector that adapts to various environments.

The user-friendly interface and robust remote control enhance the projector's operability, providing easy access to essential functions. Additionally, features such as auto keystone correction adjust the image to maintain consistent quality even when the projector is not perfectly aligned with the screen.

In summary, the Hitachi CP-X200 is a feature-rich projector that embodies reliability, performance, and ease of use. Its combination of high brightness, various connectivity options, long lamp life, portability, and integrated audio makes it an excellent choice for education and business professionals seeking a dependable presentation solution.
Top Page Image Contents