BCF ERV User Manual - Bio
Contents
1. BIO CHEN FLUIDICS BIOCHEM FLUIDICS A HALMA COMPANY TABLE OF CONTENTS Contents TABLE OF CONTEN AA O 2 VALVE CONEIGURATIONG 0a nanaana anna na 3 Flow Control Configurations 4 Position Valve a 3 Flow Control Configurations 6 Position Valve aaa 3 Flow Control Configurations 8 Position Valve a 4 Flow Control Configurations 10 Position Valve a 4 Flow Control Configurations 12 Position Valve aa 4 Valve Part Number Giruchure Aa 5 Vave Pead AS e EE 6 Sall 6 IONIC alll Position CENON aa ANA NA ANA AA 6 AA AA AA 6 Stepper ee 7 Features of BCF Supplied Motors RV SN2 series valves only a 7 MOFO Ter 8 GETTING STARTED Quick Start Application Guide 10 Getting Started RV ENO Series Valve Head Assembly nanana aanaansssansasans 10 Getting Started RV SN2 Series Valve Head Assembly Stepper Motor 10 Getting Started Recommended Operating Parameters aaa 11 NIOIGF ODEFAUING SCC GO eree EEr e E EEEE a 11 Motor Microstepping for Optimal Port Algonment 11 MOOL DUV O Ce CA AA 11 Getting Started Electrical CGonnechons a 12 Stepper Motor wire colors for RV SN2 series motors supplied by BCF 12 Position Sensor Wires Bio Chem Fluidics Two Channel Position Sensof 13 Getting Started Valve NA aNG 14 Valve NOURUNG DES E 14 Bulkhead Mounting Hecommendatons a 15 Getting Started Fuld Fort FING et 16 LO sla AIG Gin Le 16 Valve Port Seque2. to 2 545 App AN ESD Sensitive A Due to the sensitivity of the Electric Rotary Valve s position sensor electronics it is required to attach an earth ground to the motor casing RV SN2 series valves come equipped with an 18AWG insulated ground wire pre installed Itis recommended to use an equivalent grounding wire on RV ENO series valves Motor Interface The BCF Electric Rotary Valve is designed to mate to a NEMA 17 hybrid stepper motor as the driving source The valve s Housing fastens to the stepper motor frame using four 4 M3x25 socket head cap screws M3 lock washers also recommended on a 40 mm 1 58 pitch circle diameter The following diagram illustrates representative dimensions of the NEMA 17 stepper motors to which the valve is designed to mate including the recommended shaft dimensions All dimensions are in millimeters Lengthz 1 24 1 El emm 4 5 2005 EE E waa 2 ess ps Deep 4 5 Interface Dimensions Stepper Motor When attaching a motor on RV ENO series valves it is important that the flat edge of the motor shaft is aligned with the set screw prior to motor installation The set screw is pre installed in the Coupling inside of the valve s Housing visible through the Access Port hole in the Housing Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 8 A When attaching a motor on RV ENO series valves ensure the encoder sensor wires do not get pinched Not only can the wi
3. 005 USA t 973 263 3001 f 973 263 2880 e sales us biochemfluidics com Bio Chem Fluidics Technology Shanghai Co Ltd South Metropolis Industrial Park Jindu Road Minhang District Shanghai PRC 201108 t 86 21 61519058 f 86 21 61519090 Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 21
4. Fluidics warrants the RV series rotary valves to be free from defects in material and workmanship and for conformance to published specifications under normal use and service for a period of one year from the date of manufacture Bio Chem Fluidics sole obligation and liability under its warranty is limited to the repair or replacement at Bio Chem Fluidics discretion at its factory of any rotary valve which proves defective Bio Chem Fluidics makes no other warranty express or implied of the rotary valve including without limitation implied warranties of merchantability and fitness for particular purpose and all such warranties are expressly excluded Bio Chem Fluidics reserves the right to modify published specifications at any time at its sole discretion Full details of the applicable warranty can be found in the Bio Chem Fluidics Inc Terms and Conditions of Sale Contact Bio Chem Fluidics for further inquiries Life Support Policy Bio Chem Fluidics does not authorize or warrant any of its Electric Rotary Valves for use in life support systems Life support systems are defined as equipment intended to support or sustain life whose failure to perform can be reasonably expected to result in personal injury or death Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 20 BIO CHEN FLUIDICS BCF ERV Quick Start Guide 9 June 2015 www biochemfluidics com Bio Chem Fluidics Inc 85 Fulton Street Boonton NJ 07
5. ING ROUTES ALONG BOTTOM OF MOTOR TERMINAL RING SAWS FROM MOTOR oP 2X PT Va Ms X 0 5 TAPPED HOLE 3 ACCESS PORTTO MOTOR COUPLING SETSCREW Gs 24 Overall Dimensions and Mounting Positions 01 24 Valve Head Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 14 Bulkhead Mounting Recommendations When mounting a valve such that the valve head protrudes through a bulkhead opening Outer diameters of the valve heads are listed below Additional clearance is required for easy valve installation 4 way and 6 way except 0 096 orifice 1 1 4 6 way DOG orifice 1 1 2 8 way except 0 096 orifice 1 5 16 8 way 0 096 orifice through 12 way 1 3 4 Additionally e The recommended screw clearance hole size is 00 128 3 3 mm e The maximum size screw head that can be accommodated is 00 240 6 10 mm e The maximum size washer that can be accommodated is 00 360 9 14 mm A The maximum screw insertion depth is limited to 0 472 12 0 mm All bulkheads or brackets must be designed to properly support the weight of the valve A Further specific details regarding these mounting configurations may be found on Installation Drawings available through Bio Chem Fluidics Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 15 Getting Started Fluid Port Fitting Interface All standard RV series valves employ female 4 28 UNF flat bottom ports that mate to standard mal
6. e 14 28 flat bottom fittings Tightening Fittings AN Caution AN Fittings must be torqued to 11 13 N cm 16 18 in oz in the order suggested below or leakage and or premature failure may occur It is important when connecting fittings into the body s ports to first loosely install all fittings and then tighten opposing fittings together in progressive steps increasing the thread engagement at each step as one works across the body Taking this precaution will prevent unduly distorting the PTFE body The required torque of 11 13 N cm 16 18 in 0z is adequate to ensure proper long term sealing between the fitting and the port bottom Tightening fittings beyond this level can distort the inner section of the body squeezing the rotor and adding excessive torque load on the motor identified by noise from the motor Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 16 Valve Port Sequencing The following diagrams illustrate the port sequencing order Where applicable both switching and selection valves are shown This is the sequence as seen when looking straight on at a valve with the vmotor away from the observer CAUTION Avoid multiple removals and re installations of the fittings as doing so will reduce the intended working life of the valve s ports PTFE is a relatively soft material which can be damaged if care is not taken when installing removing the fittings If one of the ports in the PTFE body is accidentall
7. etting Started Recommended Operating Parameters The following operating parameters are recommended for use with the BCF Electric Rotary Valve Following these guidelines will optimize the lifetime performance of the valve and maintain the valve s sealing ability over its full life Motor Operating Speed The following table outlines recommended motor operation speeds In order to maintain the valve s sealing ability over its lifetime the valves should not be operated above these speeds Furthermore because the angular travel is short maintaining speeds at or below those recommended below will provide optimal control accuracy for rotor positioning Note that acceleration and deceleration are not included in the port to port times and therefore times are approximate Valve Configuration Angular Move Suggested Resultant Move Paa Motor Speed Time Port to Port 10 Way 36 40 RPM 150 msec Motor Microstepping for Optimal Port Alignment Set the default microstepping value to 16 in the control program Use an additional 24 microstep adjustment after Home or Port signals are detected for optimal alignment of the port position Microstepping methods vary from controller to controller Utilizing and programming these methods are the responsibility of the customer Motor Duty Cycle The following nominal and maximum duty cycles are recommended Operating above the maximum duty cycle will shorten the valve life significa
8. ly build up until significant blockage may be present toward the end of the valve s life However testing has shown that this blockage should introduce no more than approximately 10 flow restriction The following preventative maintenance PM routine is required to remove built up fibers that have accumulated in valves used for low pressure applications 1 Flush water at 50 psi for 2 minutes through each orifice 2 Repeat this routine a minimum of every 100 000 cycles or more frequently if desired This routine will minimize the amount of fiber build up at each orifice though not eliminate it entirely It should however restore flow to within 3 of original flow If a downstream filter is employed it is recommended that it be cleaned every 100 000 valve cycles or as required Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 18 Technical Specifications Valve Functional Specifications Wetted Materials Virgin PTFE stator body CTFE rotor Fluid Connection Ports 4 28 UNF flat bottomed Operating Pressure 4 way up to 200 psi 13 6 bar 1 379 MPa 6 way up to 150 psi 10 3 bar 1 034 MPa 8 way up to 150 psi 10 3 bar 1 034 MPa 10 way up to 150 psi 10 3 bar 1 034 MPa 12 way up to 150 psi 10 3 bar 1 034 MPa Flow Path Orifice Diameter Options 032 0 81 mm 052 1 32 mm 096 2 44 mm Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 19 Warranty Bio Chem
9. n order to use an RV ENO series valve it is necessary to install and apply the appropriate power torque motor and the appropriate driver controller electronics to operate the motor Refer to the Motor Specifications section on page 7 9 for required motor parameters Getting Started RV SN2 Series Valve Head Assembly Stepper Motor The RV SN2 series valve is supplied with a NEMA 17 stepper motor pre installed In order to use an RV SN2 series valve it is necessary to supply the appropriate drive and control electronics to operate the stepper motor This can be accomplished by either employing an off the shelf driver controller module or by setting up a custom control board with the appropriate driver and controller ICs Driver and controller ICs are available from a variety of sources See page 9 for the electrical specifications of the motors provided on the RV SN2 series valves The power supply must be capable of supplying a minimum of 2 6 amps current as the motor can draw up to 2 545 Ap p In some cases programming software associated with the ICs can be used to cap the current provided to the motor should this be needed for a particular power supply Use the integrated position sensor to locate the valve s Home and Port positions reference details on page 8 along with additional microstep adjustments to ensure optimal alignment of the ports Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 10 G
10. ncing EEN 17 EE eebe 18 Valve Head Assembly 1 1001 18 CT eege 19 EH 19 Functional SPECIFICATIONS XA 19 NAE AA AA AA AA PAPA 20 BEE ee FONO EE 20 Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 2 VALVE CONFIGURATIONS The standard configurations of these valves have two types of flow control arrangements switching and distribution Each configuration is shown below All configurations provide inert flow paths using TFE based materials for the wetted components making them compatible with a wide range of liquid media Port locations and sequencing order are illustrated in the diagrams below Each diagram is shown with the valve in the Home position Flow Control Configurations 4 Position Valve e 4 port switching e 4 way selection distribution Axial Port 4 port switching 4 way selection distribution Flow Control Configurations 6 Position Valve e 6 port switching e 6 way selection distribution Axial Port 6 port switching 6 way selection distribution Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 3 Flow Control Configurations 8 Position Valve e 8 way selection distribution 1 Axial Port Flow Control Configurations 10 Position Valve e 10 way selection distribution 1 Axial Port Flow Control Configurations 12 Position Valve 12 way selection distribution 1 Axial Port Bio Chem Fluidics Electric Rotary Valve Quick Sta
11. ntly Consequently lower duty cycles will minimize valve wear and prolong the life of the valve e Duty Cycle Nominal 12 5 e Duty Cycle Maximum 25 0 Depending on actual motor speeds the nominal equates to approximately one port to port move every two seconds while the maximum equates to approximately one port to port move every one second Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 11 Getting Started Electrical Connections A ESD Sensitive A The sensor PCBs are sensitive to electrostatic discharge ESD The user must take appropriate precautions to protect against ESD during handling and installation Stepper Motor wire colors for RV SN2 series motors supplied by BCF Blue O w D UL 3265 AWG26 Motor coil B end A RV SN2 series valves also come with ground wire pre installed on the motor case This wire is Green Yellow UL 1007 AWG 18 and must be secured to an earth ground A CAUTION A Never connect or disconnect a motor to a control board with power applied This may result in damage to the control board and or motor Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 12 Position Sensor Wires Bio Chem Fluidics Two Channel Position Sensor Home Signal 1 Home e Oto 1V when at Home position Black UL1007 24 AWG e 1 5 to 5V when not at Home position Port Signal Port e 0 to 1V when at Port position Red UL1007 24 AWG e 1 5 to 5V when not at Port position om
12. ou Signa Ground Blue UL1007 24 AWG REES BELOW PA ah AGA AE Green UL1007 24 AWG CAUTION A The position sensor MUST be operated using an external 5VDC power supply connected to the green wire If more than 5VDC is applied to the green wire the optical position sensor board may fail instantly and permanently without warning If the valve is used with boards that do not have pull down resistors installed in their general purpose inputs GPI the Home black and Port red signals should both have separate 10KQ pull up resistors wired to them Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 13 Getting Started Valve Installation Valve Mounting Details The Electric Rotary Valve can be either base mounted or bulkhead mounted Base mounting involves three 3 M3 screws bulkhead mounting involves several mounting patterns involving seven 7 total M3 screws The valve should be mounted with the Position Sensor and Motor wires arefacing down The following diagram illustrates the relevant mounting dimensions for all valves dimensions are ininches Note that a 6 way switching valve is shown but all valve head heights are given in the drawing Other dimensions are the same Note that an additional 1 in minimum length should be provided behind the motor for controller board and associated cables 4 5 PORT 1 08 5 PORT 1 20 7 12 PORT 1 38 1 6655 WIRE EGRESS FROM OPTICAL ENCODER WIR
13. res be damaged but this can also impact the alignment of the motor shaft connection It is important to verify the wires remain inside the Housing s wire channel A When fastening a motor on RV ENO series valves using the recommended hardware care must be taken when tightening the screws The screws mount through the four 4 holes in the valve s Housing and screw directing into the M3 threaded holes in the motor Itis suggested to first loosely fasten all of the screws and then secure them with a torque of 54 58 in oz 38 41 N cm A Once a motor is fastened on RV ENO series valves the motor shaft needs to be secured using the M3 set screw Itis important that the flat edge of the motor shaft is aligned with the set screw prior to motor installation The set screw is accessible through the Access Port hole in Housing It is recommended to secure the set screw with a torque of 54 58 in oz 38 41 N cm Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 9 GETTING STARTED Quick Start Application Guide A ESD Sensitive A The sensor PCBs are sensitive to electrostatic discharge ESD The user must take appropriate precautions to protect against ESD during handling and installation Setting up the Bio Chem Fluidics Electric Rotary Valve will depend upon the valve configuration This quick start guide will explain what is needed to set up and operate the valves Getting Started RV ENO Series Valve Head Assembly I
14. rt Guide Page 4 Valve Part Number Structure The valve part number structure is as follows RV aaa bbb cccc The options are RV rotary valve universal aaa ENO valve head assembly only SN2 valve head assembly with stepper motor bbb J4C switching valve 4 port rated at 200 psi lifetime pressure J6B switching valve 6 port rated at 150 psi lifetime pressure S4C selection distribution valve 4 way rated at 200 psi lifetime pressure S6B selection distribution valve 6 way rated at 150 psi lifetime pressure S8B selection distribution valve 8 way rated at 150 psi lifetime pressure SAB selection distribution valve 10 way rated at 150 psi lifetime pressure SCB selection distribution valve 12 way rated at 150 psi lifetime pressure CCCC PTHB PTFE body CTFE rotor 0 032 orifice size 4 28 port fittings PTNB PTFE body CTFE rotor 0 052 orifice size 28 port fittings PTTB PTFE body CTFE rotor 0 096 orifice size 74 28 port fittings Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 5 SYSTEM COMPONENTS A ESD Sensitive A The sensor PCBs are sensitive to electrostatic discharge ESD The user must take appropriate precautions to protect against ESD during handling and installation The BCF Electric Rotary Valve is made up of a Valve Head Assembly and an optional Stepper Motor Valve Head Assembly The Valve Head A
15. s designed to be driven by a NEMA 17 hybrid stepper motor Each valve requires a motor rated at a MINIMUM holding torque of 96 N cm at the recommended operating voltage and motor speed The RV SN2 series valve is supplied with a motor pre installed The RV ENO series valve is not supplied with a motor and it is the responsibility of the customer to ensure the appropriate power torque motor is installed per BCF recommendations refer to table below and Motor Interface section on next page Features of BCF Supplied Motors RV SN2 series valves only e NEMA 17 frame configuration two phase hybrid design e Wired as bipolar series 4 lead wire connection e 1 8 step angle optimized for microstep operation e Quad stack motor design 1 8 A RMS current Motor Specifications Specification Parameter Peak Peak phase current see note below Iep Insulation class Connection wires Pana SANG 0 HS Step angle CO Although the motors can be operated at a minimum voltage of 12 VDC it is recommended to operate these motors using 224 VDC in order to achieve optimal motor torque and performance for reliable valve operation Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 7 The current ratings provided for the stepper motors are RMS ratings not Peak to Peak ratings For the 1 8 Arms quad stack motor it is recommended that the power supply be capable of supplying a minimum of 2 6 amps current as the motor can draw up
16. ssembly is made up of five 5 primary components 1 Body PTFE 2 Rotor CTFE 3 Coupling aluminium 4 Optical Position Sensor 5 Housing POM Features e Chemically inert wetted surfaces PTFE Body CTFE Rotor e Coupling is precision mated to Valve Rotor direct inline drive e Coupling incorporates encoder disc for optical position sensing e Coupling mates directly to motor s drive shaft secured via allen head set screw e Housing encases the optical encoder assembly and secures PCBs into position e Housing secures both the valve assembly and the driving motor into position Optical Position Sensor A two channel optoelectronic position sensor and optical encoder disc are incorporated into the valve This position sensor allows for referencing the Home position after the unit is powered up and for signalling that the valve has reached a valid Port position This sensor must be powered externally and its signal processed externally This sensor is an open collector circuit For further details on the on the electronic connections see page 10 Features e Operates on 5 VDC power input e 2 Channel TTL output signal one channel for Home one channel for Port Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 6 gt PORT INDICATORS HOME INDICATOR HOME PORT 1 Bio Chem Fluidics Two Channel Position Sensor and Encoder Disc Stepper Motor The Bio Chem Fluidics Electric Rotary Valve i
17. y cross threaded and or damaged it is very likely to result in permanent leakage at that port Bio Chem Fluidics Electric Rotary Valve Quick Start Guide Page 17 MAINTENANCE Valve Head Assembly Due to the inherent nature of the Virgin PTFE used to produce the body stator of these valves the valve s body rotor assembly will experience a slight release of PTFE fibers from the body over time This may be more pronounced in selection valves than in switching and combination valves This is primarily because less fluid is flowing through the overall valve at any given time more fluid equating to greater lubrication Some fibers will remain firmly secured to the body at the inner orifice interfaces where the body mates to the rotor while some fibers will wash out into the fluid stream Applications that employ pressures higher than 25 psi should see most of the fibers wash out into the fluid stream This may dictate the need for a downstream filter in an instrument s flow path A 50 micron or finer filter is recommended Residual fibers that remain attached should not cause more than 3 flow restriction over the life of the valve for standard sized orifices 054 Applications that employ pressures less than or equal to 25 psi will see most of the fibers remain secured to the body A downstream filter may still be desirable for the small amount of fibers that do wash out In these applications the amount of fiber blockage will continual
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