4－55

455

Analog Input Operation

The X200 inverters provide for analog input to command the inverter frequency output value. The analog input terminal group includes the [L], [OI], [O], and [H] terminals on the control connector, which provide for Voltage [O] or Current [OI] input. All analog input signals must use the analog ground [L].

If you use either the voltage or current analog input, you must select one of them using the logic input terminal function [AT] analog type. Refer to the table on next page showing the activation of each analog input by combination of A005 set parameter and [AT] terminal condition. The [AT] terminal function is covered in “Analog Input Current/Voltage Select” on page 4–22. Remember that you must also set A001 = 01 to select analog input as the frequency source.

AM H O OI L

+V Ref.

Voltage input

Current input

A GND

V/I input

selectA001 [AT]

Freq. setting

AM H O OI L

Å 4-20 mA

+ -

0-10 V

NOTE: If no logic input terminal is configured for the [AT] function, then inverter recognizes that [AT]=OFF.

Inverter and

Using an external potentiometer is a common way to control the inverter output frequency (and a good way to learn how to use the analog inputs). The potentiometer uses the built-in 10V reference [H] and the analog ground [L] for excitation, and the voltage input [O] for the signal. By default, the [AT] terminal selects the voltage input when it is OFF.

Take care to use the proper resistance for the potentiometer, which is 1~2 k:, 2 Watts.

AM H O OI L

1 to 2k:, 2W

 

 

installation

Mounting

Monitoring

Operationsand

 

 

Voltage Input – The voltage input circuit uses terminals [L] and [O]. Attach the signal cable’s shield wire only to terminal [L] on the inverter. Maintain the voltage within specifications (do not apply negative voltage).

Current Input – The current input circuit uses terminals [OI] and [L]. The current comes from a sourcing type transmitter; a sinking type will not work! This means the current must flow into terminal [OI], and terminal [L] is the return back to the transmitter. The input impedance from [OI] to [L] is 250 Ohms. Attach the cable shield wire only to terminal [L] on the inverter.

 

AM

H

 

O

OI

L

 

0 to 9.6 VDC,

 

 

+ -

 

 

 

 

 

 

 

 

 

 

 

 

 

0 to 10V nominal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM

H

 

O

OI

L

 

4 to 19.6 mA DC,

 

 

 

 

 

 

 

 

 

Å

 

 

 

 

 

 

 

 

 

 

 

 

 

4 to 20mA nominal

 

 

 

 

 

 

 

See I/O specs on page 4-6.

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Hitachi CP-X200 instruction manual －55, Analog Input Operation
Page 203 Page 205

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.
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