ATOS electro-hydraulic proportional valve integrated digital amplifier
LEHIY item code: LH-ATOS-0009
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ATOS electro-hydraulic proportional valves integrate digital amplifiers. Atos manufactures proportional valves in both spool and cartridge types.
Based on their function, ATOS electro-hydraulic proportional valves can be divided into three categories: * ATOS pressure control valves: ATOS proportional relief valves and ATOS proportional pressure reducing valves can proportionally adjust system pressure according to the input signal;
- ATOS four-way directional valves: These proportionally control and adjust the flow and direction of the actuator according to the input signal. These valves are used in open-loop and closed-loop control systems to control the direction, speed, and acceleration of the actuator;
- ATOS flow control valves: 2-way and 3-way valves with pressure compensation, controlling system flow regardless of user load. (30W and 40W) for ATOS direct-acting proportional valves conforming to ISO440 standards in 6-way and 10-way sizes, respectively, with the following different combination options: Z0(R)-A: no integrated sensor, open loop;
- Z0(R)-AE, AES: same as ZO-A, with an integrated electronic amplifier, analog or digital;
- Z0(R)-T, L: with integrated LVDT single/dual position sensor, closed loop, with high dynamic and static characteristics;
- Z0(R) TE, -TEB, -TES, -LE, -LEB, -LES: same as ZO-T, -L, with an integrated electronic amplifier, analog or digital. For the new generation of -AE, -TE, -LE type Atos proportional valves, the electronic amplifier is integrated on the valve. It can be factory pre-tuned to ensure good valve-to-valve interchangeability and simplify installation wiring and system commissioning. Due to these performance improvements, this type of valve has been increasingly used in modern applications and systems. Integrated electronic components are encapsulated in resin to ensure shock resistance, impact resistance, and resistance to climate change;
- all coils are encapsulated in plastic. ATOS Electro-hydraulic Proportional Valve – Basic Principles of Electro-hydraulic Proportional Control: What is electro-hydraulic proportional control? Electro-hydraulic proportional control refers to adjusting hydraulic output parameters according to electrical input signals. This is an ideal combination of hydraulic and electronic systems, applicable to open-loop or closed-loop control systems (see Section 3) to achieve rapid, stable, and precise control of various movements. This type of control is essential for modern machines and factories. Electro-hydraulic systems are a component of fully automated systems. Data, control, alarm, and other information can be transmitted in a concise manner from the electro-hydraulic system to the centralized electrical control system, or vice versa, via fieldbus (see F002 "Digital Electro-hydraulic Technology"). Compared to electromechanical systems, proportional electro-hydraulic control systems have the following advantages: inherent overload protection, force self-adaptation, rapid action response, system self-lubrication, easy realization of stepless speed, force, and torque variation, storage function, high efficiency density, long lifespan, and high reliability. What is an ATOS proportional valve? The core of electro-hydraulic control is the ATOS proportional valve, which adjusts pressure P and flow rate Q based on the input signal (typically ±10V) provided by the CNC machine tool. The proportional valve must be used in conjunction with an electronic amplifier (see sample G001). The ATOS amplifier provides an appropriate current to the ATOS proportional valve's solenoid based on the input signal. The proportional solenoid converts the current into a mechanical force acting on the valve spool and overcomes the return spring: as the current increases, the solenoid's output force increases, the return spring is compressed, and the valve spool begins to move. with or without pressure/position sensors. ATOS proportional valves with sensors provide better adjustment accuracy. For pilot-operated proportional valves, the ATOS pilot valve adjusts the pressure and flow rate acting on the main valve. In the event of a circuit failure, the return spring, according to the valve's structure, returns the valve spool to the neutral position to ensure power-off protection. In other words, this system configuration ensures that the system will not be damaged in the absence of an input signal or electrical system failure. Power failure protection can be achieved directly through the ATOS proportional valve (power failure protection is an inherent function of the valve) or through a series of actions of a group of valves. ATOS electro-hydraulic proportional valve integrates a digital amplifier. A brief introduction to digital electro-hydraulic technology: The world today is driven by digital electro-hydraulic technology: computers, automation systems, automobiles and rockets, communications and networks are all based on digital technology. Compared with analog technology, digital technology has many typical advantages: fast and powerful data processing capabilities, easy programming, high immunity to electromagnetic interference, parameter processing, and data storage. In electro-hydraulic systems, ATOS digital amplifiers have the following advantages: ● Superior performance of electro-hydraulic components: hysteresis, response time, linearity;
- Software-set hydraulic parameters (gain, bias, ramp, nonlinear compensation), repeatable operations, and easy storage;
- Computer-aided maintenance for diagnosing (faults, monitoring) machines and systems;
- Direct interface with bus networks. Atos is a pioneer in electro-hydraulic technology and has been active at the forefront of digital electro-hydraulic technology for many years: building simulation models of valves and hydraulic systems, developing and testing DSP microcontrollers, and researching new solutions, etc. Digital electro-hydraulic products with integrated digital amplifiers add new functions to conventional control structures, meeting the requirements of modern machines with more compact structures and higher technological content. ATOS digital amplifiers integrate several logic and control functions (distributed intelligence), introducing modern bus communication network technology into hydraulic systems without increasing costs. The proportional range of Atos digital amplifiers includes: ● E-RI-AES for sensorless valves ● E-RI-TEB/LEB basic models for valves with single/dual LVDT sensors ● E-RI-TES/LES full series of valves with single/dual LVDT sensors ● E-RI-TERS valves with integrated pressure sensors ● E-RI-AERS valves with a reserved remote pressure sensor interface ● E-RI-PES pumps with P/Q composite control
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| Brand Name: | ATOS | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
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ATOS electro-hydraulic proportional valve integrated digital amplifier
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