Hitachi EH-150 manual X a m p l e o f P r o g r a m m i n g, V i c e

Page 30

10. Example of Programming

1 0 . E x a m p l e o f P r o g r a m m i n g

1 0 . 1 E x a m p l e o f P r o g r a m m i n g 1

(1)Control contents

(a)The program keeps the temperature of a liquid in a bath 10 to 12ºC higher than that of ambient air temperature.

(b)When the temperature difference between the upper part and the lower part of the liquid is 3ºC or higher, the program turns a stirrer on.

(c)When the temperature of the liquid exceeds 50 ºC or the temperature difference between the upper part and the lower part of the liquid exceeds 8 ºC, the program turns a temperature error lamp on to indicate an error and starts a cooler.

(d)When error data is found, the program turns a data error lamp on and starts the cooler.

(e)When error data is found, the program turns a data error lamp on and starts cooler.

(f)When an error occurs, the program stops a heater.

Motor temperature

Motor

Air temperature

Stirrer

Temperature at the upper

part of the liquid

Temperature at the lower

part of the liquid

Cooler

Heater

Lamp indication

Motor

 

Tempera

 

Data

error

 

-ture

 

error

 

 

error

 

 

 

 

 

 

 

- Platinum resistance temperature detective PT100

 

 

 

 

F i g u r e 1 0 . 1 E x t e r n a l

(2) Configuration and allocation

 

 

 

 

 

 

0

1

2

3

4

 

 

 

 

 

 

 

 

 

AVR

CPU

Y16

DUM16

DUM16

DUM16

EH-PT4

 

 

 

 

 

 

 

 

d e v i c e

Install EH-PT4 on the fourth slot.

Use the relay output module installed on

the slot 0 to output to the external device.

Basic base

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F i g u r e 1 0 . 2 P L C c o n f i g u r a t i o n

Y0: Motor

Setting of temperature range

Y1: Cooler

Pt100 , -50 to +400 ºC

Y2: Heater

 

 

 

 

 

SW1

Y3: Motor error lamp

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y4: Temperature error lamp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y5: Data error lamp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WX40: Air temperature

OFF

1 2 3 4 5 6 7 8

 

 

WX41: Temperature at the upper part of the liquid

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WX42: Temperature at the lower part of the liquid

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WX43: Motor temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10-1

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Contents Hitachi Programmable Controller Page Limited Warranty and Imitation of Liability Page Safety Precautions Required Prohibited V i s i o n N t e n t T e Table of contents Appendix 12-1 N t r o d u c t i o n B l e 1 R e f e r e n c e M a n u a l l i s t C u m e n tE f o r e U s e N t e n t s A n t i t yR e c a u t i o n s o n U s e E a t u r e sStructure and Nameplate Structure and Name of Each PartSpecification Specification listSpecification Terminal layout and internal circuit Block Diagram Internal Block DiagramExternal Wiring External WiringTemperature rage setting SettingSetting of temperature range Setting switchO l l e c t i o n o f T e m p e r a t e D a t a I / O a l l o c a t i o nG u r e 7 Temperature Data H7FFFB3 b2 b1 b0 Example of Calculation 1 Pt100 -50 to +400 ºC range Temperature conversion data F8CC1Pt100 -20 to +40 range Error D e t e c t i o n P r o c e s s i n g E a s u r e d T e m p e r a t u r e R a n g e o v e rError Detection Processing A m p l e o f p r o g r a mO u n t i n g M e t h o d InstallationO u n t i n g A i n t e n a n c e a n d I n s p e c t i o nPrecautions on External Wiring Figure .1 Wire Separation by Conduits or DuctsX a m p l e o f P r o g r a m m i n g X a m p l e o f P r o g r a m m i n gV i c e R003 10-3 Example of Programming 2 Offset adjustment Offset error Temperature conversion dataData Error in a Specific Channel TroubleshootingAllocation Error 41 is indicated in CPU Data Error in All ChannelsCalculation of External Wiring Resistance AppendixReference

EH-150 specifications

The Hitachi EH-150 is a robust and versatile hydraulic excavator, designed to meet the demands of various construction and mining environments. Known for its reliability and advanced technology, the EH-150 is a favorite among contractors looking for efficiency and performance.

One of the standout features of the Hitachi EH-150 is its powerful engine. It is equipped with a fuel-efficient diesel engine that provides ample horsepower for heavy-duty tasks while maintaining lower emissions. This not only ensures compliance with environmental regulations but also contributes to reduced operating costs over time.

The hydraulic system of the EH-150 is engineered for optimal performance. It utilizes advanced hydraulic technologies that allow for precise control and enhanced responsiveness. The system is designed to minimize energy loss, ensuring that more power generated by the engine is converted into effective digging and lifting capabilities. This feature significantly improves productivity on-site.

The excavator boasts a spacious and comfortable cab that enhances operator ergonomics. It includes adjustable seating, air conditioning, and large windows that provide excellent visibility, enabling operators to work efficiently and safely. The user-friendly controls are intuitively laid out, allowing for easy operation and reducing downtime caused by operator fatigue.

Another notable technology integrated into the Hitachi EH-150 is the machine's monitoring system. This system provides real-time data on performance metrics, fuel consumption, and maintenance needs, helping operators and managers to make informed decisions about the machine's operation. This feature not only aids in maximizing productivity but also in extending the lifespan of the equipment.

Durability is another key characteristic of the EH-150. The excavator features a sturdy track and a reinforced frame, designed to withstand the rigors of demanding jobsites. Its heavy-duty undercarriage provides stability and support, allowing it to operate effectively on uneven terrain.

In summary, the Hitachi EH-150 hydraulic excavator is a powerful, efficient, and technologically advanced machine. With its robust engine, precise hydraulic system, comfortable operator environment, and real-time monitoring capabilities, the EH-150 stands out as an exceptional choice for those in need of reliable and high-performance excavation solutions. Its durability and user-friendly features further make it a preferred option in the competitive construction and mining industries.
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