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Series 651 Pendulum valve control system
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Series 651 Pendulum valve control system

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B-Control valves
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Factsheet

Series Number 652
Series Name Pendulum valve control system
Description Series 652 Downstream pressure control and Isolation valve Compact design Very fast, virtually particle-free and shock-free operation High-performance, integrated controller
Actuator types Stepper motor
Sealing technology Rotary feedthrough (double seal)
Sealing Gate FKM (VITON®)
Sealing Bonnet FKM (VITON®)
Feedthrough Rotary feedthrough
Leak rate body < 1·10-9 mbar ls-1
Leak rate Seat < 1·10-9 mbar ls-1
Nominal inside diameters (ID) in mm (inch) 200 (8")-250 (10")
Body material Aluminum
Cycles until first service 2.5 million throttling cycles, 20000 closing cycles
   
   
   
Series Number 651
Series Name Pendulum valve control system
Description Pressure control and isolation valves with extended control range, based on the pendulum principle. For downstream applications. Compared to Series 650, Series 651 achieves considerably shorter pressure rise times at low gas flows. Compact design. Fast, virtually particle-free and shock-free operation. Powerful integrated controller.
Actuator types Stepper motor, integrated controller
Sealing technology SEALRING-System
Sealing Gate FKM (VITON®)
Sealing Bonnet FKM (VITON®)
Feedthrough Rotary feedthrough (actuator), Shaft feedthrough (sealing ring)
Leak rate body < 1·10-9 mbar ls-1
Leak rate Seat < 1·10-9 mbar ls-1
Nominal inside diameters (ID) in mm (inch) 160 (6") - 400 (16")
Body material Aluminium hard anodized; Aluminium nickelled; Aluminum
Cycles until first service 1 million control cycles, 200'000 closing cycles
Pressure control The controller ensures fast and accurate pressure control. The unique LEARN feature automatically determines the characteristic of the vacuum system. LEARN needs to be performed only once during system setup. With its adaptive algorithm the controller contiuously adjusts to the current process conditions (gas type, gas flow). This assures allways an optimal pressure control performance.
Position control Position control mode allows to move the valve plate at any selected position.
Display A bright 4 digit display indicates status and valve position.
Remote operation Via a RS232-, Logic- or DeviceNet Interface the valve may be controlled from a host computer. The RS232 interface has digital inputs to close and open the valve in addtion. The Logic interface allows to control the valve via digital and analog inputs and outputs.
Service Port The valve has a service port (RS232) to connect a computer. A software allows for easy setup, operation, monitoring, data recording, data analysis and diagnostics. 'Control View' as basic version is available as freeware. 'Control Performance Analyzer' is available on order. A service cable from VAT is required.
Power Failure Option (PFO) This function closes the valve automatically in case of a power failure.
Sensor Power Supply (SPS) Optionally the valve may be equipped with a ±15 VDC supply module for the sensor(s).
RS232 interface  
Serial RS232-Interface Control of all functions,
selectable baud rate (600 - 115200)
Digital inputs Close valve and open valve
Digital outputs Valve closed and valve open
Analog outputs Actual pressure and actual valve positon (optional)
Logic interface  
Digital inputs Close valve and open valve
Control mode
Learn, Zero and Hold
Inhibit operation via service port
Digital outputs Valve closed and valve open
Remote control status
Setpoint deviation
Analog inputs Pressure- or position setpoint
Analog outputs Actual pressure and actual valve positon
DeviceNet® interface Control of all functions. DeviceNet® group 2 slave with Polling, Bit Strobe and Change of State/Cyclic Transmission. UCMM port (unconnected message manager) is available. 'Offline Connection Set' according to DeviceNet® specification relaease 2.0 is implemented.
Technical Data  
Power input 24 VDC, 60 W max.
Ambient temp. 0-50°C
Control accuracy 0.1% of sensor full scale
Step resolution DN160 - DN250: 12'444 postions (full stroke)
DN320 - DN400: 13'440 postions (full stroke)
Sensor input 0-10 VDC linear to pressure
differential, Ri > 100kOhm
Sensor supply +24 VDC, +/-15VDC
Power Failure Option Battery type: Ultracap
Charging time: 2 min
Durability (25°C) up to 10 years
Input (Interface) Digital: control with relay, opto coupler or
voltage source (5-24 VDC)
Analog: 0-10 VDC, Ri > 100kOhm
Output (Interface) Digital: potential free relay contacts,
70V max., 500 mA max., 10 W max.
Analog: 0-10 VDC, 1 mA max.

 

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