G468-0001 industrial control spare parts PLC module
Technical data of product parameters
During partial stroke testing, the valve’s closure member is moved while the process is running. A typical test value G468-0001
would be to move the closure member by 10 % of the travel range, but other values are possible depending on the
process requirements. When a positioner is used, the test can be performed as a step or ramp test. Fig. 11 shows
sample test results achieved with a positioner (TROVIS SAFE 3730-6). The positioner mounted on the valve performs
the test and records and saves the test results; an online connection to the process control system is not required G468-0001.
The saved diagnostic data can be read at any time by the higher-level asset management system. The condition of
the control valve can be analyzed based on:shows impressively how increased friction values, for example, become evident in the diagnostic data recorded during a partial stroke test. The dead time, control performance, and course of the actuator pressure have
changed significantly. In the example, the valve still functions and could be shut down on demand. An internal G468-0001
damage about to occur, e.g. due to increased friction, could thus be detected in advance. shows an advanced partial stroke test performed by a Type 3738-20 Electronic Limit Switch. In this case,
the solenoid valve is pulsed to achieve a certain target range for valve movement. The necessary pulse length is
determined during an automatic configuration routine. The same solenoid valve is used for testing and emergency
shutdown on demand, making special pneumatics redundant (EB 8390). This results in high diagnostic coverage,
which is a special benefit.
Product picture display
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Ruichang Mingsheng Automation Equipment Co., Ltd. is an enterprise specializing in the sales of ABB DSQC robot system module spare parts and Siemens Moore APACS control system spare parts for a long time. The spare parts we sell all provide a one-year quality assurance, and have undergone strict testing and certification. Our company can directly purchase from overseas, and can provide equipment and spare parts from different countries and manufacturers Solve the problems you are looking for in many places or worry about product quality problems, etc. We have great advantages in price, product details, and sincerely welcome you to call or use E-mail to query!
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Introduction to main products
Focus on DCS, PLC, robot control system and large servo system.
Main products: various modules/cards, controllers, touch screens, servo drives.
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Main brands include ABB Bailey, GE/FANC, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, Emerson EMERSON, OVATION, MOTOROLA, XYVOM, Honeywell HONEYWELL, Rexroth, KUKA, NI, DEIF, Yokogawa, Woodward WOODWARD, Ryan, Schneider SCHNEIDER, Yaskawa, Moog MOOG, PROSOFT and other brands
reminder
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