Hitachi EH-150 manual R e c a u t i o n s o n U s e, E a t u r e s

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1.Introduction

1 . 2 P r e c a u t i o n s o n U s e

(1)Before the installation and removal of the module, turn off the power.

(2)Before the connection of the external wiring and removal of the terminal board, turn off the power.

(3)The terminal board handles fine signals. Therefore upon handling the module or wiring, be careful not to apply a voltage on it by mistake or leave it under the influence by excessive static electricity.

(4)Upon the connection of external wiring, before work, eliminate static electricity by touching a grounded metal bar to prevent it from being damaged by excessive static electricity charged on the human body. To prevent a malfunction due to static electricity do not touch the terminal during power feeding.

(5)When the connection cable to a resistance temperature detective is cut, the temperature conversion data becomes abnormal. If the temperature data exceeds the normal range to protect the external devices, adjust the control system so that the external devices operate with safety.

(6)If the resistance of a resistance temperature detective (RTD) exceeds 250 ohm (corresponding to about 410 °C ) at PT100, or 2500 ohm(corresponding to about 410 ºC ) at PT1000, except when the line is broken, the temperature conversion data is unstable.

1 . 3 F e a t u r e s

(1)EH-PT4 applies for two kinds of platinum resistance temperature detectives: Pt100(IEC 751) and Pt1000.

(2)Temperature measurement range: Three kinds of ranges(selected by switch)

Resistance temperature

Temperature measurement

Accuracy(°C)

detectives

range(ºC)

 

 

 

 

Pt100

-50 to + 400

± 3

Pt100

-20 to + 40

± 0.5

Pt1000

-50 to + 400

± 6

(3)Because the accuracy of the temperature measurement range -20 to +40ºC is ± 0.5 ºC, EH-PT4 is suitable for exact measurement.

(4)Temperature conversion data: signed 15 bits.

(5)Number of Inputs: 4 channels, 3-wire system.

1-3

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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 list SpecificationSpecification Terminal layout and internal circuit Internal Block Diagram Block DiagramExternal Wiring External WiringSetting of temperature range SettingTemperature rage setting Setting switchI / O a l l o c a t i o n O l l e c t i o n o f T e m p e r a t e D a t aG u r e 7 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 ProcessingO u n t i n g InstallationO u n t i n g M e t h o d A i n t e n a n c e a n d I n s p e c t i o nFigure .1 Wire Separation by Conduits or Ducts Precautions on External WiringX 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 Offset error Temperature conversion data Example of Programming 2 Offset adjustmentAllocation Error 41 is indicated in CPU TroubleshootingData Error in a Specific Channel Data Error in All ChannelsAppendix Calculation of External Wiring ResistanceReference

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.

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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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