Hitachi EH-150 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 t

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1.Introduction

1 . I n t r o d u c t i o n

This manual describes how to operate the EH-PT4 (Resistance Temperature Detective input module) properly, which is one of the special function module of EH-150 Programmable Logic controller(PLC). Carefully read this manual to familiarize yourself with the procedures respectively of installation, operation, and maintenance and inspection.

Please be sure to read the related application manuals, too.

T a b l e 1 . 1 R e f e r e n c e M a n u a l l i s t

N o .

D o c u m e n t

M a n u a l N o .

1

About the detailed operation method of the programming unit

 

 

1) Instruction word programmer (PGM-CHH)

 

 

Instruction word programmer manual

NB981X*

 

2) Portable indication programmer (PGM-GPH)

 

 

Portable indication programmer manual

NB982X*

 

3) LADDER EDITOR FOR WINDOWS (HLW-PC3)

 

 

Programming manual

NJI-206X*

 

4) LADDER EDITOR FOR DOS (HL-AT3E)

 

 

Programming manual

NB335X*

 

 

 

2

EH-150 APPLICATION MANUAL

NJI-280X*

“*” means revision of manual and up to A, B, C in order.

R e f e r e n c e

What is Resistance Temperature Detective(RTD)?

This is also called as “Resistance Thermometer Sensor”.

Refers to the device measuring the temperature by using the metal’s property that its electric resistance changes with the temperature and is often made of Pt 100 ohm (platinum with a resistance of 100 ohm at 0 °C.

As for the principle of the measurement, by feeding a constant current of 1 through 5 mA ( 2 mA in this module) to a resistance temperature detective, the change of resistance due to that of temperature is measured as the change of voltage.

Use a resistance temperature detective complying with IEC 751 for this module.

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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 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 t N t r o d u c t i o nN t e n t s A n t i t y E f o r e U s eE a t u r e s R e c a u t i o n s o n U s eStructure and Name of Each Part Structure and NameplateSpecification SpecificationSpecification list Terminal layout and internal circuit Internal Block Diagram Block DiagramExternal Wiring External WiringSetting switch SettingSetting of temperature range Temperature rage settingG u r e 7 O l l e c t i o n o f T e m p e r a t e D a t aI / O a l l o c a t i o n H7FFF Temperature DataB3 b2 b1 b0 Example of Calculation F8CC 1 Pt100 -50 to +400 ºC range Temperature conversion data1Pt100 -20 to +40 range 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 r Error D e t e c t i o n P r o c e s s i n gA m p l e o f p r o g r a m Error Detection ProcessingA i n t e n a n c e a n d I n s p e c t i o n InstallationO u n t i n g O u n t i n g M e t h o dFigure .1 Wire Separation by Conduits or Ducts Precautions on External WiringV i c e X a m p l e o f P r o g r a m m i n gX a m p l e o f P r o g r a m m i n g R003 10-3 Offset error Temperature conversion data Example of Programming 2 Offset adjustmentData Error in All Channels TroubleshootingAllocation Error 41 is indicated in CPU Data Error in a Specific ChannelReference Calculation of External Wiring ResistanceAppendix

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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