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80-4280-10, Rev. 4

ELECTRONICS

* See the HART appendix for details on connecting via HART

communicators.

** See the serial port appendix for details on connecting via

the serial port.

DIGITAL CONTROL MODULE

(DCM-2)

The DCM-2 is a micro-processor based circuit

board assembly that serves as the actuator’s

control center. The DCM-2 chassis assembly

is comprised of a Control circuit board, a Driver

circuit board (inverter circuit), additional circuit

components like capacitors and transformers,

and an aluminum chassis to which both the

boards and the components are fastened. The

whole assembly is mounted in the actuator’s DCM

compartment (see photo).

The main function of the DCM-2 chassis

assembly is to be the actuator’s positioner. The

control board compares the Demand input signal

to the actuator shaft position feedback signal from

the Contactless Position Sensor (CPS-4) located

in the control end compartment (see photo).

See the troubleshooting section of this manual

for details regarding the fuse locations, the test

point locations, and expected test point voltage

levels.

INTERFACES

The DCM-2 has three configuration interfaces:

a local pushbutton interface, a HART interface,

and a serial port interface.

PUSHBUTTONS

The local pushbutton interface is integral to

the DCM-2 assembly. It requires no additional

equipment to perform calibration procedures,

but is limited in functionality. This interface

also has LEDs for diagnostic information.

HART

The HART interface may be accessed by a

HART handheld communicator* or a HART

equipped control system. All electronic

calibration, configuration, and diagnostics

can be accomplished through HART

communications.

SERIAL PORT

The serial port interface is accessible by

connecting a computer to the DCM-2 using a

Beck serial cable**. All electronic calibration

and configuration can be accomplished

through the serial port interface.

The DCM-2 chassis assembly is mounted in a

dedicated compartment (see photo) and normally

does not need to be removed.
Accessing the DCM-2 assembly may be

required for configuration or diagnostic purposes

using either the pushbutton or serial port

interfaces.
If the DCM-2 needs to be repaired for any

reason, the whole chassis should be removed and

replaced as an assembly. See the Maintenance

section of this manual for complete details on

chassis removal and installation.

DCM

Compartment

Control End

Compartment

Содержание 22-309

Страница 1: ...4 INSTRUCTION MANUAL E L E C T R I C A C T U A T O R S F O R I N D U S T R I A L P R O C E S S C O N T R O L 22 309 22 409 MODELS R This manual supports Model 22 309 22 409 actuators equipped with th...

Страница 2: ...This manual contains the information needed to install operate and maintain Beck Model Group 22 actuators manufactured by Harold Beck Sons Inc of Newtown Pennsylvania The Group 22 actuators are powerf...

Страница 3: ...Precautionary Information 10 General Operation Information 11 Installation 12 Mechanical 12 Electrical 15 Wiring 16 Start up 19 Electronics 20 Configuration Calibration 24 Maintenance 38 Troubleshoot...

Страница 4: ...aled bearings and require no maintenance for the life of the motor Motor overtemperature sensing is not provided by the actuator actuator Motor overtemperature sensing is not needed because Beck motor...

Страница 5: ...on from the actuator crank arm to the load Through the use of a standardized selection the linkage can be ordered even if the exact length is not determined until the actuator and driven device are in...

Страница 6: ...Operating Conditions 40 to 85 Celsius 40 to 185 Fahrenheit Communication Interface HART Protocol Local Pushbutton LED panel RS 232 Serial Commands Demand Input Signal Range 4 20 milliamps ISA Type 4 C...

Страница 7: ...e throw rated for 1 Amp 250 Volts AC Customer Wiring Terminals accommodate up to 12 AWG 3 31 mm2 Handswitch Permits local electrical operation independent of Demand input signal Handwheel Provides man...

Страница 8: ...ER EXTERNAL TRANSFORMER ENCLOSURE DATA PLATE 3 7 8 98 4 5 16 110 HANDSWITCH HART COMMUNICATION PORT IF APPLICABLE COVER POSITION SENSING DEVICES COVER ELECTRONIC COMPARTMENT COVER TERMINAL BLOCKS EXTE...

Страница 9: ...0329 70 10 10 32 3 4 17 432 1 1 2 39 27 7 16 697 1 25 5 3 8 137 16 1 16 408 3 5 16 84 5 5 8 144 21 18 7 8 480 1 1 2 12 UNF THREAD x 2 5 8 67 DEEP 1 25 THRU 4 PLACES CRANK ARM SCREWS 4 CRANK ARM SCREWS...

Страница 10: ...egarding proper mechanical installation see the instructions beginning on page 12 for details Refer to the outline dimension drawings for physical dimensions and required clearances INSTALLATION ELECT...

Страница 11: ...ng external relays solid state to interface with the overrides Analog signal operation may be overridden by using relay logic input signals on the control override input terminals CW 19 CCW 20 and STO...

Страница 12: ...tor s components The mounting plate should be at least as thick as the diameter of the mounting bolts Mounting bolts should be 7 8 9 The bolts should be hex head steel zinc plated HHSZP Grade 5 or bet...

Страница 13: ...s not included and must be cut to length and threaded in the field see Table 1 this page for instructions to calculate pipe length To simplify installation of the pipe link the kit accepts NPT right h...

Страница 14: ...1 Lubricate the rod end bearings Carefully move the drive s output shaft to the full forward maximum input signal position Check that no binding occurs between the linkage crank arm driven shaft lever...

Страница 15: ...Three 1 N P T conduit connections are provided for power and signal wiring to the actuator One conduit is provided for signal wiring connections and the other conduits are provided for power and auxi...

Страница 16: ...ntact is open and when the Handswitch is in the AUTO position the contact is closed The contact is rated for 1 Amp at 250 VAC CAUTION Always close covers immediately after installation or service to p...

Страница 17: ...2 23 24 14 18 17 21 16 20 15 19 Auxiliary Switch 2 Auxiliary Switch 1 Power Handswitch Auto Indication Power Ground Signal Ground System Alarm Feedback Signal Demand Signal Control Override Inputs CPS...

Страница 18: ...EQUIRED ORG ORG OUTPUT SHAFT POSITION 2 WIRE CONNECTION REQUIRED AS SHOWN FEEDBACK DCM FUSES F1 F2 F3 8a 250v USE FUSE KIT P N 12 8061 53 HANDSWITCH CW RED J3 6 BRN J3 1 ORG YEL RED J3 4 J3 2 J3 3 J5...

Страница 19: ...position Make certain no movement of the output shaft and linkage can cause personal injury Confirm the actuator is receiving the appropriate operating voltage as shown on the nameplate Check the DCM...

Страница 20: ...2 has three configuration interfaces a local pushbutton interface a HART interface and a serial port interface PUSHBUTTONS The local pushbutton interface is integral to the DCM 2 assembly It requires...

Страница 21: ...SET DEM 0 TP1 FUSES 8 AMP 12 8224 51 J4 J3A J3B TP4 J5 FWD STAT REV PWR F1 F2 F3 TP3 RIBBON CABLE CONNECTOR TP2 SERIAL PORT WIRING CONNECTOR TP4 R POSITION TORQUE STALL TEMP F FB OPEN UVOLT ACKNOWLED...

Страница 22: ...minate all at once Refer to the troubleshooting section of this manual for corrective actions that will eliminate system alarms status indication LEDs from being lit and the STAT LED from being lit DE...

Страница 23: ...ermine the actuator s output shaft position for control and to generate an analog 4 20 milliamp position feedback signal for external use LOCAL PUSHBUTTON INTERFACE The five pushbuttons located on the...

Страница 24: ...lick as the contacts open and close CAUTION Do not attach the meter or attempt to adjust the switch cams until the actuator is disconnected from the line voltage and auxiliary switches are disconnecte...

Страница 25: ...the control end cover and the terminal block cover 1 2 wrench 2 Move the output shaft to the desired switch trip position 3 Turn the Handswitch to the STOP position 4 Disconnect power from the actuato...

Страница 26: ...mA Demand signal will result in a 4 20 mA feedback This procedure is more involved because it requires changing the CPS rotation setting in the DCM and also making some mechanical calibration adjustme...

Страница 27: ...you will also need to change the CPS rotation setting in the DCM configuration from CW to CCW This change can only be made using a serial command via the DCM serial port Use serial command cpsrotation...

Страница 28: ...an be performed to reduce actuator travel Full stroke rotation of 60 degrees or less is not recommended Beck sales engineers are available for application advice or Link Assist analysis POSITION CALIB...

Страница 29: ...to execute the change SERIAL command method Command travel Arguments Enter the full stroke rotation in degrees e g travel 90 for 90 degree rotation Note for HART Serial The 0 position will remain the...

Страница 30: ...ons Linear select if the actual position should match the applied Demand Square Root select if the actual position should match the square root of the applied Demand Special Curve select if a user def...

Страница 31: ...case the Y coordinate of any point is equal to the X coordinate squared e g for node 4 the X value is 50 or 0 5 The resultant Y value is 0 5 x 0 5 0 25 or 25 This example uses 5 segments to approximat...

Страница 32: ...tup Command LOS Mode Selections Stay select if the actuator should hold output shaft position when a loss of signal occurs Go to pos select if the output shaft should go to a specific position when a...

Страница 33: ...A stall condition occurs when the actuator is attempting but is unable to move to a desired position for a defined period of time due to a mechanical impediment or excessive load The DCM 2 senses tha...

Страница 34: ...If desired the milliamp position feedback values for 0 and 100 positions can be configured different than the respective standard factory calibration of 4 mA and 20 mA The 0 position can be configure...

Страница 35: ...Factory calibration assigns 4 mA as the 0 and 20 mA as the 100 Demand signal response unless otherwise specified It is not necessary to calibrate the Demand input when the actuator is installed Sever...

Страница 36: ...Torque Setup Command Trq Thrust Selections Enabled Select to enable torque sensing Disabled Select to disable torque sensing Command Trq Null Enter the torque null value that is affixed to the actuat...

Страница 37: ...URE SENSING DCM 2s are equipped with an internal temperature sensing circuit The real time temperature and the historical temperature extremes low and high are available Temperature units can be selec...

Страница 38: ...ally GASKETS During routine service inspect removed cover gaskets for wear or damage In order to protect internal components worn or damaged gaskets and O rings should be replaced To remove scrape all...

Страница 39: ...uild X X 12 8061 69 Service Screw Set X X 12 8061 10 Fuse Kit 8A DCM 4A Input 240 Vac 1 phase X N A 12 8061 50 Optional Transformer fuse 9A 208 Vac 3 req d X X 11 1372 10 Optional Transformer fuse 8A...

Страница 40: ...2 409 has three fuses which are located in fuse holders on the DCM 2 chassis assembly Note that the DCM 2 circuit boards are not powered through the fuses and therefore the Control Board will remain a...

Страница 41: ...Null 0 torq0K 0 Torque Constant 5E Trq Const 550 torqconst 550 CPS Volts at 0 Degrees 5B CPS Zero 1 300 cpsvat0deg 1 000 CPS Volts per 100 Degrees 5B CPS Span 2 400 cpsvper100deg 4 000 Travel 5A Trave...

Страница 42: ...T handheld communicator or a HART capable control system Refer to the HART appendix for additional information on handheld communicator connection and DD menu structure If replacing an older DCM L Loc...

Страница 43: ...r using the Handwheel or hand crank until both the FWD and REV LEDs are out When both LEDs are out the actuator Demand and position are balanced and the Handswitch can be returned to AUTO Check actuat...

Страница 44: ...n sensing assembly inside 3 Disconnect the control end assembly electrical circuits by unplugging the three multi pin connectors from the actuator Two connectors lead from the switch subassembly and t...

Страница 45: ...nug the screws Check the clamps for proper shoulder clearance and tighten the screws to 12 lb in 1 3 N m torque 8 Plug the pin connectors into their respective sockets 9 Tighten the outer 2 setscrews...

Страница 46: ...or serial connection see respective appendices in this manual Reference Menu 8 Diagnostics menu for troubleshooting with HART and for serial port troubleshooting use the diagnostic commands featured i...

Страница 47: ...DCM 2 malfunction a Using the HART communicator check the Position Sensor Setup menu to verify the Present CPS voltage falls within the configured CPS Zero and Span typical range 1 5 volts OR measure...

Страница 48: ...seconds for 22 309 and 15 seconds for 22 409 12 FWD or REV LED is illuminated actuator is not moving and there are no other status alarms a Handswitch is in the STOP position b CW or CCW limit switch...

Страница 49: ...tion feedback circuit on the DCM 2 is damaged a Replace the DCM 2 18 Power LED is pulsing bright to dim a This is a normal condition indicating the processor is functioning a No action required 19 Out...

Страница 50: ...e communicator and wait for communications to be established Once communicating the Online display will appear in the communicator window If applicable select the HART application option to access the...

Страница 51: ...ONNECTION POINTS HANDHELD COMMUNICATORS MODEL 375 MODEL 475 A 250 ohm load resistor may be required for proper HART communication when the DCM 2 has been modified for 1 5 VDC Demand signal operation H...

Страница 52: ...lock 1 RTC Day 8 2 RTC Month 1 3 RTC Year 2006 4 Hour 24 8 5 Minute 5 4A Review 3 3B Device Information 1 Tag BECK2006 2 Descriptor 3 Message 4 Model 22 309 5 Drive S N 6 Instld 23 05 2006 7 Setup 23...

Страница 53: ...l number of the actuator in which the DCM 2 is installed This field may be edited Note that changing this field may cause the Use Default Setup command to not function 5 Drive S N The Serial number as...

Страница 54: ...e at the lowest operating point of travel For CW actuator configuration this voltage should be 1 3 V and for CCW configuration 3 7 V The DCM 2 will automatically adjust when the direction of travel is...

Страница 55: ...s normal actuator operation after a stall condition has caused the motor to shut down Note that stall conditions can also be reset by simply reversing the input Demand signal or cycling the actuator A...

Страница 56: ...signal is enabled but cannot follow the proper current 8 Switch Block The DCM 2 cannot power the motor due to an electro mechanical switch Check the Handswitch and over travel limit switches MENU 5D S...

Страница 57: ...he month numeric value 2 RTC Month Month numeric value 3 RTC Year Year 4 digits 4 Hour 24 Hour of the day 24 hour format 5 Minute Minute of the hour 0 through 59 MENU 3G Calibration Trim The Calibrati...

Страница 58: ...ng failure This is triggered when the Position signal is outside the minimum and maximum voltage limits Position out of accurate measurement range This is a Beck specific message The DCM 2 indicates t...

Страница 59: ...n the output rating This Beck specific message defines an output shaft torque overload problem Motor power has been removed due to excessive output torque This Beck specific message indicates the DCM...

Страница 60: ...pushbutton is being pressed Loop Current Detected while under HART FF Control A Beck specific alarm message that alerts the user that analog current is present on the Demand terminals but the DCM 2 i...

Страница 61: ...r power has been removed and reapplied This message is presented if the DCM 2 has gone through a power up reset sequence since the last communication with the master This message is only displayed onc...

Страница 62: ...instructions will assist in setup and assume use of the Beck Serial cable see following page Note that some variation to these instructions may be necessary depending on the version of HyperTerminal b...

Страница 63: ...parameter change Typically they apply to the actuator calibration This type of command requires an argument but unlike dual purpose commands they return an error message when entered without an argume...

Страница 64: ...ltage range n desired length of travel in degrees This value cannot exceed the maximum output shaft rotation of the actuator General Configuration Commands Command Description Argument n and Informati...

Страница 65: ...maximum travel n 1 executes command drvdir n Sets displays the actuator output shaft rotation direction resulting from an increasing Demand signal n 0 CW rotation n 1 CCW rotation drvtiming n Sets dis...

Страница 66: ...load the output shaft with an exact load preferably 100 Execute torq100pct to let the DCM 2 know what the torque sensing should be reading n exact output shaft torque as a percent of rated load of the...

Страница 67: ...T n 8 ACKNOWLEDGE n 100 FWD n 101 REV n 102 STAT n All reset n Performs the same reset sequence as when power is removed and reapplied n 1 must equal 1 for command to execute signals Displays the pres...

Страница 68: ...ent at a time Demlos must be used twice to set both the threshold and action n Demand signal in mA below which LOS occurs e g the typical value for a 4 20 mA system is 3 20 OR n sip gtp or pat The pat...

Страница 69: ...output shaft position n desired Feedback signal in mA at 0 output shaft position Minimum value is 3 00 mA and the maximum must be at least 4 00 mA less than the Feedback signal value for the 100 outpu...

Страница 70: ...Link Assist 13 Mechanical 12 14 Wiring 16 18 Introduction 2 Limit Switches Over travel 24 Setting Switches 24 Linkage Kits 13 Loss of Demand Signal LOS 32 Maintenance 38 45 Component Replacement 38 Co...

Страница 71: ...and service for three years from the date on which the equipment is shipped Improper installation misuse improper maintenance and normal wear and tear are not covered The Buyer must notify Beck of an...

Страница 72: ...4 20 11 TERRY DRIVE NEWTOWN PENNSYLVANIA 18940 USA PHONE 215 968 4600 FAX 215 860 6383 E MAIL sales haroldbeck com www haroldbeck com HAROLD BECK SONS INC R R Made in USA...

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