4－57

457

Analog Output Operation

In inverter applications it is useful to monitor the inverter operation from a remote location or from the front panel of an inverter enclosure. In some cases, this requires only a panel-mounted volt meter. In other cases, a controller such as a PLC may provide the inverter’s frequency command, and require inverter feedback data (such as output frequency or output current) to confirm actual operation. The analog output terminal [AM] serves these purposes.

 

AM

H

O

OI

L

Analog

+

 

 

 

 

-

Voltage

 

 

 

 

A GND

Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10VDC full scale, 1mA max

See I/O specs on page 4-6

The inverter provides an analog voltage output on terminal [AM] with terminal [L] as analog GND reference. The [AM] can output inverter frequency or current output value. Note that the voltage range is 0 to +10V (positive-going only), regardless of forward or reverse motor rotation. Use C028 to configure terminal [AM] as indicated below.

Func.

Code

Description

Range

C028

00

Inverter output frequency

0 ~ Max. Frequency (Hz)

01

Inverter output current

0 ~ 200% of rated current

 

The [AM] signal offset and gain are adjustable, as indicated below.

Func.

Description

Range

Default

B080

[AM] output gain adjustment

0.~255.

100.

C086

[AM] output offset adjustment

0.0~10.0

0.0

The graph below shows the effect of the gain and offset setting. To calibrate the [AM] output for your application (analog meter), follow the steps below:

1.Run the motor at the full scale speed, or most common operating speed.

a.If the analog meter represents output frequency, adjust offset (C086) first, and then use B080 to set the voltage for full scale output.

b.If [AM] represents motor current, adjust offset (C086) first, and then use B080 to set the voltage for full scale output. Remember to leave room at the upper end of the range for increased current when the motor is under heavier loads.

AM output offset adjustment

AM output gain adjustment

and

Inverter

installation

Mounting

Monitoring

Operationsand

 

 

AM output

10V

C086=0~10

Parallel

movement

5V

0

1/2 FS

Full scale (FS)

 

Hz or A

AM output

10V

B080=0~255

5V

0

1/2 FS

Full scale (FS)

 

Hz or A

NOTE: As mentioned above, first adjust the offset, and then adjust the gain. Otherwise the required performance cannot be obtained because of the parallel movement of the offset adjustment.

Page 205 Page 207
Page 206
Image 206
Hitachi CP-X200 instruction manual Analog Output Operation, AM signal offset and gain are adjustable, as indicated below
Page 205 Page 207

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