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產(chǎn)品資料

德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6

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產(chǎn)品名稱: 德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6
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產(chǎn)品展商: FESTO
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德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6 Unlike conventional direct-acting regulators, with multi-sensor control several control circuits are nested inside each other. Easy replacement of the valves  Tested units  Easy extension of the valve terminal The figure shows a closed-loop control circuit. The reference variable w (setpoint value, e.g. 5 volts or 8 mA) initially acts on a 德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS


德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6  的詳細(xì)介紹
德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6
  上海乾拓貿(mào)易有限公司
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地址:上海市嘉定區(qū)江橋嘉涌路99弄6號(hào)樓713室
Choice of different setpoint specifications
– Current input – Voltage input
Integrated pressure sensor with separate output  Cable break monitoring
Innovative Versatile Reliable Easy to mount
 High repetition accuracy  Modular product system
 a system deviation will also appear if the reference variable is constant but the controlled variable changes.
element. The output of the final control element acts on the controlled system.
 The closed-loop control element thus attempts to compensate for
 the difference between the reference variable w and the controlled variable x by using the final control element.
 the regulator attempts to readjust the controlled variable x to the reference variable w.
Multi-sensor control (cascade control) of the VPPM
Unlike conventional direct-acting regulators,
with multi-sensor control several control circuits are nested inside each other.
Easy replacement of the valves  Tested units  Easy extension of the valve terminal
The figure shows a closed-loop control circuit.
The reference variable w (setpoint value, e.g. 5 volts or 8 mA) initially acts on a comparator.
Choice of regulation characteristic
 High dynamic response  2 accuracy levels
For all common protocols  As an individual pressure regulator 
As a pressure zone regulator  Choice of 3 valves with different pressure ranges 
 3 pressure ranges (presets) can be set via the bus 
An example of this is when the pressure drops in the air supply.
 The disturbance variable z acts on the controlled variable x unintentionally. In all cases,=
Multi-sensor control (cascade control)  Diagnostics 
 Choice of regulation characteristic 
 Temperature compensated  High dynamic response .
Multi-sensor control significantly improves control precision and dynamic response in comparison with singleacting regulators.
– Adjustment/selection buttons 
 Choice of valves with different pressure ranges 
 Pressure range can be modified on the valve
Individual valves (in-line valve)  Various user interfaces
– LED displays – LCD display
This process runs continuously so changes in the reference variable are always detected. However,
The overall controlledsystem is divided into smaller subcontrolled circuits that are easier to control for the specific task
 This happens when the flow through the valve changes in response to a switching action, a cylinder movement or
a change in load. The disturbance variable z will also cause a system deviation.
 Pressure is maintained if the controller fails
H-rail mounting  Individually via mounting bracket  QS fittings
Innovative Versatile Reliable Easy to mount
Multi-sensor control  Diagnostics via the bus 
 Internal or external compressed air supply possible
Long service life  LED display for the operating status 
Pressure is maintained if the supply voltage fails 
 Fast troubleshooting thanks to LEDs on the valves and diagnostics via fieldbus 
 Ease of servicing through replaceable valves
 The measuring device sends the value of the controlled variable x (actual value, e.g.
 3 bar) to the comparator as a feedback signal r.
The closed-loop control element detects the system deviation e and actuates the final control
德國(guó)費(fèi)斯托比例壓力閥技術(shù)參數(shù), CRQS-1/4-6
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