Hitachi EH-150 manual Internal Block Diagram

Page 17

4. Block Diagram

4. Block Diagram

4.1 Internal Block Diagram

Figure 4.1 shows the internal block diagram.

CPU Bus

 

 

 

EH-PT4

 

External wiring

 

 

 

 

 

A0

 

 

 

 

 

circuit

 

RTD

 

 

V/F

 

b0

 

Line-

 

 

B0

 

Counter

conversion

 

Input conversion

 

arize

(Note)

 

 

 

 

 

 

 

 

 

 

 

A3

 

 

 

 

 

 

RTD

 

insulation

 

 

b3

･･･

Timing

 

 

B3

Photocoupler

 

 

 

 

 

control

 

 

 

 

 

 

Constant

 

Switch

Shielded

 

 

wire

 

current

 

 

 

 

External grounding

 

 

circuit

 

circuit

 

 

 

 

 

 

 

 

 

Each

 

 

24 V DC+

 

 

part

Internal

 

 

 

External power

 

 

 

Power

 

 

 

 

 

24V DC

 

 

 

Supply

 

 

 

 

24 V

DC−

 

 

 

circuit

 

 

 

 

 

Figure 4.1 Internal Block Diagram

Note: V/F conversion refers to the conversion of voltage(V) to frequency(F).

4-1

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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 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 of temperature range SettingTemperature rage setting Setting switchG 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 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 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 adjustmentAllocation Error 41 is indicated in CPU TroubleshootingData Error in a Specific Channel Data Error in All ChannelsReference 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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