4－50

450

Network Detection Signal (Integrated ModBus)

The Network Detection Signal output indicates the general status of network communications (integrated ModBus communication). The inverter has a programmable watchdog timer to monitor network activity. Parameter C077 sets the time-out period. If communications stop or pause longer than the specified time-out period, the NDc output turns ON.

Option

Terminal

Function Name

State

Description

Code

Symbol

 

 

 

08

NDc

Network

ON

when the communication watchdog timer (period

 

 

Disconnection

 

specified by C077) has timed out.

 

 

Signal (ModBus)

OFF

when the communication watchdog timer is

 

 

 

 

satisfied by regular communications activity

 

Mounting

and installation

Operations and

Inverter

Monitoring

 

 

 

Valid for inputs:

11, AL0 – AL2

Required settings

C076, C077

Notes:

ξTo disable the communications watchdog timer, set C077=00.00 sec.

ξIf you set Communications Error Select to “Disable” (C076=02), you still have the option of using the Network Detection Signal and setting the watchdog time-out period with C077.

Example for terminal [11] (default output configuration shown – see page 3-54):

Inverter output

 

 

terminal circuit

NDc

 

 

 

 

 

CM2

 

11

RY

Example for terminal [AL0], [AL1], [AL2] (requires output configuration – see page 4-35 and 3-54):

Inverter logic

 

NDc

circuit board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL0

 

AL1

AL2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

Load

 

supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See I/O specs on page 4-6

Additionally, the inverter can respond to a communications time-out in various ways. Refer to the following diagram (top of next page). You configure the desired response via function C076, Communications Error Select. This selects whether or not you want the inverter to trip (alarm with error code E60) and whether to stop the motor or just let it coast. Together, parameters C076 and C077 set the network detection watchdog time- out and the inverter’s response.

Page 198 Page 200
Page 199
Image 199
Hitachi CP-X200 instruction manual －50, Network Detection Signal Integrated ModBus
Page 198 Page 200

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