background image

28

Cycles 

             1,875

Control

 

 

 

Feedback 

 

 

Deadband 1.5% 

 

N

CTRL = Using Digital Inputs
MAN = Under Manual Control
PGM = Under Program Control

Variable length bar indicating current 
between 4-20 mA
Example:

 

= 4 mA

 

 

❙ 

= 12 mA

 

 

❚ ❚

 

 

= 20 mA

A = Automatic, Analog
a = Automatic, Digital
M = Manual, Analog
m = Manual
P = Program Control
S = Standby

- = Idle
d = Decreasing Current
D = Decreasing Current, Bypass Limit
i = Increasing Current
I = Increasing Current, Bypass Limit

H = Halted
W = Waking (Solenoids on, Not Yet Moving
M = Moving
C = Coasting

Run Time Screen

   = Full Range, Standard
   = Split Range, Standard
   = Full Range, Learned
 

  = Split Range, Learned

1. Current Loop Mode

The Run-Time Screen contains all the real-time feedback data for the DNGP. The diagram below shows a 
screenshot of a DNGP Run-Time Screen. The boxes accompanying the diagram show all possible feedback 
symbols and their meanings. In Current Loop Mode the DNGP accepts the standard 4-20 mA input and 
energizes the solenoid to stroke the valve to the desired position. In this mode pressing the RIGHT button will 
increase the input current signal and manually move the valve (the direction will depend on what positioner 
action is selected). Pressing the LEFT button will decease the input current signal and manually move the 
valve. Pressing the UP and DOWN buttons increase and decrease the deadband respectively to adjust the 
sensitivity of the positioner. Pressing the ENTER button will take you to the Top Level Setup Screen (to be 
further explained in another section).

Содержание Becker 3.5M Series

Страница 1: ...otary Transmitter Calibration 15 Linear Transmitter 16 Replacing Electronic Module 22 Linear Transmitter Programming 23 High Pressure 5 3 Solenoid Valve 24 High Pressure 5 3 Solenoid Valve Conversion and Replacement 25 Sections Page Low Pressure 2 2 Solenoid Valve 26 High Pressure 3 2 Solenoid Valve 26 3 2 and 2 2 Solenoid Valve Maintenance Troubleshooting 27 The Run Time Screen 28 29 Input Config...

Страница 2: ...d stroke in full closed and open position Loss of Signal Options Selectable Drive to 4 mA position open or closed valve position Drive to 20 mA position open or closed valve position Lock in last controlled position Position Input Signal Impedance 120 to 220 Ω Transmitter Feedback Input Signal Impedance transmitter 120 to 220 Ω additional operating voltage required for Introduction The DNGP is des...

Страница 3: ...ion proof housing with window or NEMA 4 Poly carbonate enclosure for remote control board mounting Approximate Weight 15 lb 5 6 kg includes standard explosion proof DNGP enclosure and High Pressure 5 3 Solenoid Valve Valve Position Limit Switches Low limit settable from 0 to 45 closed High limit settable from 55 to 100 of open Contacts ratings maximum Power 180 W or 1800 VA Current 6A Voltage 150 ...

Страница 4: ...rom this informa tion the equation needed to figure the proper wire size is governed by equation 1 1 VDROP 2 L I R 1000 Where VDROP Volts Voltage drop between the power supply and DNGP L Ft Length of wire one way between power supply and DNGP R Ohm Resistance per 1000 ft of the wire I amps DNGP current draw 1 A Equation 1 tells us that for longer distances of wire between the power supply and the D...

Страница 5: ...f the jumpers depends on the power of the transmitter If the transmitter doesn t need external power select JP1 1 2 If the transmitter needs external power select JP1 2 3 or remove the jumper The jumper JP2 functions only as a spare replacement for JP1 There are 4 fuses on the DNGP logic board The first fuse F1 is 0 1 Amperes and serves as the PTC fuse for a 4 20 mA signal current loop F2 is 0 1 A...

Страница 6: ...P1 Manual Auto Stand by Switch F2 0 1 A PTC Fuse for 4 20 mA Transmitter Positioner Current Loop F3 3 A Fuse VIN Input Power F3 3 A Spare Replacement for F3 JP1 Jump 1 2 when Digital Linear Transmitter is used RTU feedback loop power must be off JP1 for Analog Rotary Transmitter Option 1 Jump 1 2 of JP1 in order to power the loop from external source RTU provides the power Option 2 Jump 2 3 of JP1...

Страница 7: ...a tion decrease the orifice settings one or two numbers at a time and readjust the sensitivity Because the valve will be moving slower a smaller dead Table 3 Orifice Part Numbers Figure 4 Variable orifice assembly standard assembly shown Assembly Orifice included Orifice Figure 5 For 2 3 valves an additional backpressure valve metering valve is used Orifice Size Marking Part Standard No Mark Assembly 2...

Страница 8: ...8 Figure 6 4 to 12 valves are used with M orifice blocks 14 16 valves are used with L orifice blocks Figure 7 For valves 16 no orifices are needed ...

Страница 9: ...9 Figure 9 Single Acting Control Valve PSUPPLY 40 Psig Figure 8 Single Acting Control Valve PSUPPLY 50 Psig ...

Страница 10: ...tro pneumatic positioner the pneumatic positioner can be eliminated Using the DNGP for the electro pneumatic positioner allows the unit to fail open closed or in last position on loss of 4 20 mA signal Becker high pressure VRP pilots and Becker high pressure HIGH LOW selector relays ideally complement the DNGP electro pneumatic positioner for high or low pressure override For double acting systems...

Страница 11: ...11 Figure 12 Double Acting Control Valve with PCO PSUPPLY 50 Psig High Pressure Override Figure 13 Double Acting Control Valve with PCO PSUPPLY 50 Psig Low Pressure Override ...

Страница 12: ...12 Figure 14 Single Acting Control Valve with PCO PSUPPLY 40 Psia Figure 15 Single Acting Control Valve with PCO PSUPPLY 50 Psia ...

Страница 13: ...Figure 16 Rotary Piston Spring To Close Actuator with High Pressure 3 2 solenoid valve PSUPPLY 40 150 psig Figure 17 Rotary Piston Spring To Open Actuator with Pressure Control Override PSUPPLY 40 150 psig ...

Страница 14: ...asing measured variable pressure 2 Regulator is to open on loss of power gas 3 VRP SB PID and DNGP are non bleeding in steady state full open full closed position 4 Control valve shown in full open position DNGP with Rotary Position Transmitter Standard The Rotary Position Monitor is used in conjunction with the DNGP This polarity independent transient protected transmitter can operate with any vo...

Страница 15: ...tter Next turn the transmitter gear clockwise until the transmitter changes no more than 0 5 mA from previous reading Renegage gears if equipped with mechanicals witches depress switch plunger to allow gear to engage 6 Turn the clockwise mA adjustment screw to adjust the transmitter reading to the desired output for this valve position typically this is 4 mA or 20 mA 7 Stroke the valve to the full...

Страница 16: ...ations A linear digital proximity transmitter will be used whenever linear motion is available These transmitters offer high resolution with a non contact proximity design The linear transmitter is available in a tail rod or standard configuration Figure 22 indicates the major components in a typical tail rod configuration while in Figure 24 the same concept is used to show the standard configuration...

Страница 17: ...3 Bracket 4 98 2782 3 8 ID Lockwasher 5 98 2927 1 4 20 x 2 HHCS 6 98 3269 8 32 x 1 2 SHCS Alloy 7 01 8901 Magnet 8 98 3181 7 16 FT Washer SS 9 25 8145 Spacer 10 98 3281 7 16 20 x 3 HHCS 11 01 6592 Bushing 12 31 2014 Transmitter Block 1 2 3 4 5 7 6 9 12 11 10 8 Figure 23 Detailed View of the Linear Position Transmitter Tail Rod Transducer ...

Страница 18: ... or 20 mA Figure 24 Detailed View of the Linear Position Transmitter Standard Assembly 1 2 3 4 5 7 6 8 WARNING This Model Was Discontinued in 2007 Table 8 Reversible Fixed Range Linear Position Transmitter Specifications Measured Parameter Specification Analog Output Repeatability Resolution Hysteresis Voltage Output Versions 0 5 mV or 5 μm whichever is greater Current Output Versions 1 μA or 5 μm w...

Страница 19: ...4 Linear Transmitter Overall Dimensions Figure 25 Linear Transmitter Adapter Flange Figure 26 Linear Transmitter Magnet WARNING This model was discontinued in 2007 Figure 27 Reversible Linear Transmitter Connector ...

Страница 20: ...is Voltage Output Versions 0 5 mV or 5 μm whichever is greater Current Output Versions 1 μA or 5 μm whichever is greater Sampling Rate For stroke lengths 2000 mm 1 kHz For stroke lengths 2000 mm 500 Hz Non linearity For stroke lengths 500 mm 100 μm For stroke lengths 500 mm 0 02 of full scale Pressure Rating Rod Up to 600 bar Operating Temperature 40 F to 185 F Supply Voltage 24 VDC 20 Humidity 90...

Страница 21: ...21 Figure 29 Linear Transmitter Overall Dimensions Figure 30 Programmable Linear Transmitter Wiring Diagram ...

Страница 22: ... the 20mA signal will be generated at the end of the shaft Dip Switch 2 is down or off To Program the transmitter to the 20mA Up mode the 20mA signal will be generated close to the body Dip Switch 2 is up or on Step 5 Insert the new Electronic Module back on the transmitter housing connect the 4 wires and turn the power to On Step 6 Insert the two screws with hex wrench connect the wires and power...

Страница 23: ... 20mA at the other extremity you are ready to calibrate Note In order to change the direction of the 4 20mA signal adjust the Dip Switch 2 located on the electronic module When Dip Switch 2 is down or off the 20mA signal will be generated at the end of the shaft The reverse is true when the switch is on the on position DIP SW 2 Figure 32 Linear Transmitter Dip Switch Location Step 2 Insert the Ana...

Страница 24: ...position valve with a spring centered closed center spool All ports are blocked when both solenoids are de energized Also looking from the two hole side below the flow pattern is such that when the solenoid on the left is energized air flow comes from the cylinder port on the left This solenoid can be converted from external to internal pilot operation and vice versa to allow a greater pilot pressur...

Страница 25: ...est to 3 porthole side of the main body 4 Connect a source of external pilot pressure to the 1 8 NPT port 50 psi 160 psi to the pilot port Gas Line Filter For the longest life and best results use an air line filter installed no further than 10 feet from the valve The filter should be rated at 25 μm or finer Figure 36 High Pressure 5 3 Solenoid Valve Remove these 4 screws Valve Seals Some oils may sw...

Страница 26: ... Ball Control Valves See Figs 16 17 for Pipeline Schematic Two High Pressure 3 2 Solenoid Valves are used in DNGP applications with PSUPPLY from 40 to 150 psig When the solenoid is energized the core is drawn into the solenoid base sub assembly When the solenoid is de energized the initial return force for the core whether developed by spring pressure or weight must exert a minimum force to overco...

Страница 27: ... valve should be operated at least once a month to insure proper opening and closing 3 Depending on the medium and service conditions periodic inspection of internal valve parts for damage or excessive wear is recommended Thoroughly clean all parts Replace any worn or damaged parts Causes of Improper Operation 1 Faulty Control Circuit Check the electrical system by energizing the solenoid A metall...

Страница 28: ... the real time feedback data for the DNGP The diagram below shows a screenshot of a DNGP Run Time Screen The boxes accompanying the diagram show all possible feedback symbols and their meanings In Current Loop Mode the DNGP accepts the standard 4 20 mA input and energizes the solenoid to stroke the valve to the desired position In this mode pressing the RIGHT button will increase the input current...

Страница 29: ...ol Idle Feedback Deadband 1 5 N CTRL Using Digital Inputs MAN Under Manual Control PGM Under Program Control Idle Input is Idle Open Open input is Active Close Close Input Active FAULT Both Inputs Active A Automatic Analog a Automatic Digital M Manual Analog m Manual P Program Control S Standby Idle d Decreasing Current D Decreasing Current Bypass Limit i Increasing Current I Increasing Current By...

Страница 30: ... Press UP or DOWN button to make option selection then press ENTER button 2 Split Control In some applications split range control is needed instead of the standard 4 20 mA range The DNGP can be accomplish this feat through the INPUT CONFIGURATION MENU using the SPLIT CONTROL option The DNGP has the option to enable or disable the split control feature or set the upper and lower split limits with ...

Страница 31: ...ct BYPASS MODE then press ENTER button Press UP or DOWN button to make option selection then press ENTER button 2 Pulse Mode Pulse Mode is used for underdamped dynamic systems such as compressor recycle valve application Input Config Valve Actions Logging Alarms Utilities Firmware Valve Actions Menu Loss of Signal Bypass Mode Pulse Mode Pulse Mode Threshold On Time Off Time Press UP or DOWN button...

Страница 32: ...or DOWN button to select ADJUST LOWER then press ENTER button Upper Limit Alarm 98 Lower Limit Alarm 2 Press UP or DOWN button to adjust value then press ENTER button Press UP or DOWN button adjust value then press ENTER button 2 Remote Indicator The DNGP remote indicator function can be selected to function in solenoid counter mode or standby manual mode In counter mode the indicator pulses whene...

Страница 33: ... to select YES then press ENTER button Firmware Menu 1 Version Info The DNGP is a dynamic software tool that undergoes constant changes and improvements as time goes on Using the FIRMWARE MENU the user is able to find out information about the current version they are using It is impor tant to keep up to date with the most current version of the software to ensure any added features or bug fixes a...

Страница 34: ...date Valve INOPERABLE Until Reloaded Cancel Proceed Update Firmware Are You Sure NO Yes I Will Reupload Press UP or DOWN button to select YES I WILL REUPLOAD then press ENTER button Ready for Firmware Update Rebooting Perform Firmware Update Upgrading DNGP Firmware 1 Using the menus on the DNGP go to FIRMWARE FIRMWARE UPDATE and proceed with the update The unit should reboot and the ERROR LED shou...

Страница 35: ...the lower left box This takes about 2 minutes Wait until you see the FINISHED OPERATION message 11 It will bring up Open HEX File window Browse to the hex file to download e g Dngp_download version dd_MMM_YYYY hex Open file and in a few seconds it will display HEX File Imported 12 Click on the WRITE DEVICE icon You will see WRITING and a progress count in the lower left box This takes about 3 minu...

Страница 36: ... to signal Check Valve Position must be same position as the DNGP Input Config Menu Position Action Close on Increase or Open on increase If the valve is going to be on the close position most of the time close the valve and check the CTRL and FDBK values must be within 16ma if not adjust the VP pot or magnet for the linear position transmitter DNGP doesn t move on change of signal CTRL and FDBK s...

Страница 37: ...ard and terminals 31 0016 DNGP Leak Test Procedure 1 Switch DNGP to standby from auto Observe feedback mA indicator If position of the valve changes follow continue to step 2 2 Move MCV to manual to close block valve or close cylinder block valves 3 Check cylinder for decaying or equalizing pressure a If cylinder pressure is decaying check and repair leaks at fittings b If cylinder pressure is equ...

Страница 38: ...F and G High Pressure 5 3 Solenoid Valve Class I Group C and D Class II Groups E F and G 2 2 and 3 2 Solenoid Valves Class I Div 1 Group A B C D Class II Div 1 Groups E F and G Nema Enclosure Types 3 3S 4 4X 6 6P 7 9 Optional ATEX Available LCIE 00ATEX 6008 X II G D EEx d IIC T6 Certifications and Approvals Software Release Information Version Release Date Feature 3 01 00 Aug 28 2011 Modbus protool...

Страница 39: ...y tests it plans to conduct to determine whether a non conformance exists 5 4 Buyer shall bear the costs of access for Seller s remedial warranty efforts including removal and replacement of systems structures or other parts of Buyer s facility de installation decontamination re installation and transportation of defective Products to Seller and back to Buyer 5 5 The warranties and remedies are co...

Страница 40: ...eaf Avenue Elk Grove Village Illinois 60007 USA T 1 847 437 5940 F 1 847 437 2549 Inside US T 800 323 8844 Email becker ge com Visit us online at www ge com energy 2012 General Electric Company All Rights Reserved Trademark of General Electric Company ...

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