Beck, R&J 14-20 manuale d’uso

1 80-1400-02 Rev . 06.3 INSTR UCTION MANU AL 14-10_ 14-20_ MODELS For actuators built after January 2000 with RETRACT / EXTEND Hanswitch ELECTRIC ACTUA TORS FOR INDUSTRIAL PROCESS CONTROL[...]

2 INTR ODUCTION T O THE MANU AL This manual contains the information needed to install, operate, and maintain the Beck 14-100 & 14-200 linear electronic control drives, manufactured by Harold Beck & Sons, Inc. of Newtown, Pennsylvania. NOTICE: This manual includes information that will make installation simple, ef fi cient, and trouble-fre[...]

3 CONTENTS Product Description ........................................................................................................................... 4 General Speci fi cations ..................................................................................................................... 5 Outline Drawings ..............................[...]

4 PR ODUCT DESCRIPTION Beck Group 14 linear control drives are engineered for precise, reliable operation of globe valves requiring up to 4,000 lbs of thrust. The cool, stable operation of Beck’s control motors coupled with the powerful gear train provide the tight, responsive control required by modern control loops to keep operating costs low .[...]

5 GENERAL SPECIFICA TIONS Model 120 V ac 240 V ac Max. Current 14-100 .56 A 72 W .33 A 80 W and Power 14-200 1.5 A 180 W .86 A 210 W Operating T emperature -40 to 85°C. (-40 to 185°F .) 0 to 99% relative humidity Input Signal Electronic Signal Receiver 0–5 mA (ESR-4) 1–5 mA 4–20 mA 10–50 mA 1–5 V dc -10 to 10 V dc Input Signal Span Adj.[...]

6 PR ODUCT DESCRIPTION OUTLINE DRA WING -- 5/16” to 2 1/8” travel (A LL D IMENSIONS IN I NCHES ) Beck Model 14-100 & -200 NOTE: Drives may be mounted in any orientation. MODEL 14-100 MODEL 14-200[...]

7 OUTLINE DRA WING -- 3/4” to 4 1/2” travel (A LL D IMENSIONS IN I NCHES ) Beck Model 14-100 & -200 NOTE: Drives may be mounted in any orientation. MODEL 14-100 MODEL 14-200[...]

8 PR ODUCT DESCRIPTION T ABLE 2: SUMMAR Y OF GROUP 14 CONTROL OPTIONS[...]

9 INST ALLA TION SAFETY PRECAUTIONS W ARNING Installation and service instructions for use by quali fi ed personnel only . T o avoid injury and electric shock do not perform any servicing other than contained in the operation instructions unless quali fi ed. ST ORAGE INFORMA TION The drive should be stored in its shipping carton in a clean, dry a[...]

10 INST ALLA TION 5. Place the jam nut (7) and travel index (6) over the valve stem (1 1) before mounting the drive on the valve. 6. Remove the boss nut (8) from the valve and place the drive and yoke over the stem and onto the boss (12). Secure the yoke with the boss nut, fi nger-tight. 7. Using the drive Handwheel, lower the drive output shaft t[...]

11 INST ALLA TION WIRING The Group 14 drive is available with six separate control configurations which are provided to match the control requirements for your system. T ypical functional wiring connections for each control option are described in the following paragraphs and diagrams. The wiring diagram speci fi c to each drive is attached to the[...]

12 Option 6, Modulating Direct AC Control with Contactless Position Sensing Customer must supply three wires to directly control the drive motor direction: One 120 V ac line for Retraction (terminal M), one 120 V ac line for Extension (terminal N), and one neutral (terminal B). Customer may supply two additional wires to monitor the analog position[...]

13 CPS-2 SIGNAL CONNECTIONS Beck Group 14 drives equipped with the Contactless Position Sensor (CPS-2) are shipped ready for installation. They are engineered to match the mA or V dc feedback range in your system. Customer connections for feedback signal wiring on each CPS-2 model are described in the following diagrams and paragraphs. Refer to T a[...]

14 CPS-2 Model 20-3400-03, -13 V oltage Feedback T erminal Connections The universal model has a voltage divider network which allows for various voltage signal ranges. V oltage output ranges are available across terminals EE (+) and CC (-) with the proper ranging resistor connected across terminals CC and DD. Units are factory-calibrated for speci[...]

15 INPUT SIGNAL OPTIONS Beck Group 14 drives con fi gured for milliamp or dc analog modulating applications include an Electronic Signal Receiver (ESR-4). Several control options are available with the ESR-4, such as operating more than one drive with a single signal source. The instructions below apply to applications that require a signal change[...]

16 Split Range Operation T wo or three Beck drives may be operated over their full range by a portion of the controller ’s output signal range. The most common arrange- ment involves two drives operating on equal halves of the input signal range. For example, if a 4–20 mA control signal is used, the fi rst drive would move 100% of its stroke o[...]

17 INST ALLA TION ST ART -UP ST ART -UP INSTRUCTIONS After the drive is mounted and its wiring connections are made, it is ready to be tested for proper operation. T urn on the power supply . Operate the drive with the Handswitch and run it through its full stroke, both directions. Observe that the driven device travels through its desired stroke. [...]

18 OPERA TION HOUSING All models of the Beck Group 14 electronic control drive have individual, cast aluminum compartments for the main components: The control motor , wiring terminal board, drive train, electronic signal receiver , and feedback section. Gasketed covers and sealed shafts make this product ideally suited to outdoor and high-humidity[...]

19 CONTROL OPTIONS T wo basic types of control are available: 120 V ac contact closure (options 3, 4, 5, and 6) and milliamp or dc analog modulating (options 7 and 8). Each option is described below . Open / close option 3: For simple 2-position control using manual push-buttons or an automatic controller . Preset travel limit switches provide open[...]

20 signal. The dif ference between these signals— the error—is ampli fi ed and used to actuate either of two electronic motor power switches. These switches drive the motor in the proper direction to force the error to zero. The input signal is adjustable from 50% to 400% of the 4 volt span, with the zero adjustable from -100 to +275% of span.[...]

21 POSITION FEEDBACK: FILM POTENTIOMETER The fi lm potentiometer produces a voltage that is some fraction of the voltage applied across its resistive element. That voltage fraction is determined by the position of the wiper on the resistive element. The potentiometer assembly also includes two fi xed resistors, one on each end of the resistive el[...]

22 SWITCH ADJUSTMENTS All Group 14 control drives are shipped with end-of-travel limit switches and all auxiliary switches factory adjusted for 100% of travel unless otherwise speci fi ed at time of order . Limit switches must be set inside the range of the built-in mechanical stops to prevent stalling of the motor . Although the switches may be r[...]

23 Setting Auxiliary Switches Standard switch settings for drives with 2 or 4 auxiliary switches are shown on the diagram on page 22. The operating point of all auxiliary switches is de fi ned as a percentage of output shaft travel. 100% is de fi ned as the retracted limit of shaft travel. The heavy line indicates a closed circuit. Follow these i[...]

24 CALIBRA TION STROKE CHANGE STROKE CHANGE—CALIBAR Adjustment of the total drive stroke within the factory-set travel range is easily accomplished by the use of the Beck Calibar , Figure 7. The switches and feedback device are simultaneously adjusted to maintain full input span when the Calibar setting is changed. For stroke lengths longer than [...]

25 CHANGING DIRECTION OF TRA VEL Retracting direction of travel is de fi ned as the direction of output shaft motion produced by an increasing signal. Unless otherwise speci fi ed at the time of order , the output shaft is factory set to retract in response to an increasing signal to open the valve. The procedure to change the direction of travel[...]

26 FEEDBACK SIGNAL CALIBRA TION Feedback signal calibration is necessary to ensure that signal current or voltage correctly corresponds to the drive’s output shaft position. All Group 14 drives are shipped with the feedback calibrated for full retraction of the output shaft unless otherwise speci fi ed at time of order . The procedure to check a[...]

27 Calibration Procedure Adjustment of the CPS-2 is necessary if the signal range requires an increase or decrease in value relative to the drive’s output shaft stroke. Calibrate by turning the Span Potentiometer CW to increase the gain of the CPS-2. This has the effect of increasing the output at the high end and lowering the output at the low e[...]

28 CALIBRA TION FEEDBACK SIGNAL 2. Remove jumper from terminals CC to DD and replace with a 3.01K ohm resistor (see T able 1 1, page 46). This shifts the range to 4–20 V dc. 3. Using a voltmeter at the appropriate output terminals, adjust the Zero Potentiometer with the drive at minimum input signal position so that output reads 0 V dc. This chan[...]

29 CPS-2 POSITION SENSOR MODELS 20-3400-02, -04, -05, -12, -14, -15 Figure 9 CPS-2 POSITION SENSOR MODELS 20-3400-03, -13 CPS-2 MONITOR / ISOLA TOR ASSEMBL Y Figure 10 Figure 8[...]

30 INPUT SIGNAL CALIBRA TION All Group 14 drives equipped for milliamp or dc analog modulating applications include a fourth generation Electronic Signal Receiver (ESR-4). The ESR-4 board consists of a voltage regulator , a signal ampli fi er , an error ampli fi er , and three solid state output switches. The ESR-4 board controls the position of [...]

31 Figure 1 1 Span The basic span adjustment of the ESR-4 is 2 volts to 6 volts dc. This is adjustable with the 20 turn span potentiometer . T o make the span adjustable from 2 to 9.5 volts dc, remove resistor R4. T o make the span adjustable from 9.5 to 16 volts dc, remove R4 and cut jumper wire J-1. T o make the span adjustable from 12 to 16 V dc[...]

32 MAINTENANCE ROUTINE The Beck Group 14 drive requires only minimal routine maintenance. Periodic lubrication of the gearing is recommended to extend gear life. Periodic visual inspections are recommended to verify that the connection to the valve is intact and operating normally . If vibration is present, check the electrical terminal connections[...]

33 MAINTENANCE COMPONENT REPLACEMENT This section covers replacement of many components of the Group 14 drive. Note that some components are not fi eld repairable. If it should ever be necessary to replace the output gear , shaft, or output shaft bearings, a major overhaul is required and the drive should be returned to the factory . GASKETS Durin[...]

34 LIMIT AND AUXILIAR Y SWITCHES Complete switch assemblies may be replaced. It is not possible to replace individual switches. T o replace switch assemblies, remove the top cover (15/16” bolt head). Remove the #6-32 socket head cap screws holding the switch assembly to the plate. T ransfer the wires one at a time to the replacement assembly usin[...]

35 Figure 13 Handswitch T o replace the Handswitch, remove the terminal cover , ESR-4 board and ESR-4 bracket. Clip the five wires from the old Handswitch. Remove the knob and the nut under the knob to remove the switch. Install the new Handswitch as shown in Figure 13, above. Splice the wires color for color . Replace the ESR-4 bracket, board and [...]

36 CONDITIONS POSSIBLE CAUSES CORRECTIONS If your unit contains a Stall Protection Module (SPM) refer to publication 80-0017-03, page 7, “T roubleshooting”. 1. Control drive will not run in either direction with input signal applied to ESR-4 Board. No lamps lit on ESR-4 board. 2. Control drive will not run in either direction with input signal [...]

37 CONDITIONS POSSIBLE CAUSES CORRECTIONS 5. Control drive runs in the wrong direction with input signal applied. 6. Control drive does not follow input signal until maximum or minimum signal is reached, then drives uncontrollably to limit. 7. Control drive motor oscillates in AUTO mode. 8. Control drive motor erratic or runs in wrong direction in [...]

38 MAINTENANCE TROUBLESHOOTING CONDITIONS POSSIBLE CAUSES CORRECTIONS 13. Loss of input signal feature does not function. 14. Control drive runs to RET limit with small change in input signal. 15. Control drive runs to 100% and stays. 16. Control drive travel very nonlinear — a. e.g., 4–19 mA change on input causes drive to drive from 9% to 30%[...]

39 CONDITIONS POSSIBLE CAUSES CORRECTIONS 19. Potentiometer or CPS-2 output decreases when it should increase. 20. CPS-2 output nonlinear . 21. CPS-2 output does not reach maximum signal, but low end calibration is correct. 22. CPS-2 out of calibration. 23. CPS signal will not calibrate down to 4 mA. 24. Control drive does not stay in place with po[...]

40 APPENDIX SP ARE P ARTS HOW T O ORDER SP ARE P ARTS Select the needed spare parts from T able 5, below . Specify the drive’ s model / serial number (example: 14-108-031891-01-02) given on the nameplate to allow the factory to verify the part selection. Parts may be ordered by mail, telephone or fax, with the con fi rming order sent to the fact[...]

41 APPENDIX COMPONENTS T ABLE 7: GEARS T ABLE 6: MOTORS, CAP ACITORS, AND RESISTORS[...]

42 APPENDIX CONTROL ASSEMBL Y T ABLE 8: P ARTS FOR MODEL 14-100 CONTROL ASSEMBL Y AND DRIVE TRAIN[...]

43 CONTROL ASSEMBL Y AND DRIVE TRAIN[...]

44 APPENDIX CONTROL ASSEMBL Y T ABLE 9: P ARTS FOR MODEL 14-200 CONTROL ASSEMBL Y AND DRIVE TRAIN[...]

45 CONTROL ASSEMBL Y AND DRIVE TRAIN[...]

46 APPENDIX CPS-2 DA T A T ABLE 10: CPS-2 SYSTEM APPLICA TION DA T A SUMMAR Y T ABLE 1 1: CPS-2 SIGNAL OUTPUT TERMINAL CONNECTIONS AND LOADING[...]

47 CPS-2 FUNCTIONAL BLOCK DIAGRAM[...]

48 APPENDIX CONTROL DRIVE SCHEMA TICS TYPICAL SCHEMA TIC FOR CONTROL OPTION 7 OR 8[...]

49 TYPICAL SCHEMA TIC FOR CONTROL OPTION 7 OR 8 WITH ST ALL PROTECTION MODULE INST ALLED[...]

50 NOTES[...]

51 INDEX Adjusting the zero ...................................... 28, 31 Application reviews ........................... Back cover Applications, typical ........................................... 4 Calibar adjustment ........................................... 24 CPS-2 calibration ............................................. 27 CPS-2 functional[...]

52 SER VICES PRODUCT DEMONSTRA TIONS Each of Beck’s Sales Engineers has access to a complete set of drive models so that he can demonstrate virtually any of their features at your location. In order to arrange to see a Beck drive in your plant or of fi ce, contact Beck’s Sales Department. SITE SUR VEYS Beck Sales Engineers are available to dis[...]