Rockwell-automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax Manual de usuario Pagina 1

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2Ć2ANCBZA+FGA-B+FGB-Z+FGZ-BCDEFG123678COUNTSTOPLATCHCLEARFORWARDREVERSECCLKOKFG*FG = Frame Ground (Not Internally Connected)****Key SlotKey SlotFigure

2Ć3  The module contains a pulsetachĆtoĆdigital converter that suppliesdata to a 24Ćbit up/down counter. See figure 2.2. The c

2Ć4+12V INPUT A+5V INPUT ACHANNEL ACOMMON OR A681221+5VDIGITALFILTER 14122TO PULSETACHTERMINAL+12V INPUT B+5V INPUT B+5VDIGITALFILTER

2Ć5The module provides three external digital inputs which are enabledthrough software (see register 6). Each input causes the module toperform a spec

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3Ć13.0 INSTALLATIONThis section describes how to install and remove the module and itscable assembly.CAUTION: The user is responsible for conforming w

3Ć2P/S0 1 2 3 4 5 6 7 8 9 1011121314151010 Slot Rack1616 Slot RackFigure 3.1 Ć Rack Slot NumbersStep 5. Attach the pulsetach but leave the mechanical

3Ć3Step 7. You may need to add termination resistors to installationswhere the twisted pair cable length from the pulsetach tothe module exceeds 200 f

3Ć4Monitor the counter register and rotate the pulsetach.Verify that the counter register counts in the properdirection. If the pulsetach rotates in t

3Ć5121421517318204+12 V or +5 VPULSE ENCODERVCCGNDPULSETACH INPUT MODULE+12 V INPUTA SIGNAL AASIGNAL AOPTIONALTERMINATIONRESISTORVCCVCCBBSIGNAL BSIGNA

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3Ć6121421517318204PULSE ENCODERGNDABZSIGNAL ASIGNAL BSIGNAL Z1K +12 V+12 V or +5 V464 + 5 V+12 V or +5 V+12 V or +5 V1K +12 V464 + 5 V1K +12 V464 + 5

3Ć7121421517318204+12 V or +5 VGNDPULSE ENCODERVCCABZVCCVCCSIGNAL ASIGNAL BSIGNAL Z+12 V INPUT+5 V INPUT+12 V INPUT+5 V INPUT+12 V INPUT+5 V INPUTPULS

3Ć8121421517318204+12 or +5 VGNDPULSE ENCODER VCCAASIGNAL ASIGNAL AOPTIONALTERMINATIONRESISTOR+ 12 V INPUT+ 5 V INPUT681681681221221221681681681PULSET

4Ć14.0 PROGRAMMINGThis section describes how the data is organized in the module andprovides examples of how the module can be accessed by theapplicat

4Ć24.1.2 Speed Detection ModeSpeed detection mode is enabled by setting the Timer InterruptEnable bit (register 5, bit 5) to 1. In this mode, the coun

4Ć3CounterValueTimeExternalLatch InputSlope isconstant at200 kHzĊ Internal Counter ValueLatched Counter ValueFigure 4.3 Ć Counter Status During Extern

4Ć44.2 Register OrganizationThe module contains registers for the pulse counter, the comparator,the timer, module status, and module control. The regi

4Ć54.2.2 Counter Update Register (Register 2)Register 2 contains the update period for reading the counter andupdating the latch registers. Refer to f

4Ć64.2.4 Interrupt Status Control Register (Register 5)The bits in register 5 are used to enable interrupts and define othermodule characteristics. Th

4Ć7module (M/N 57C411), or a Universal Drive Controller module(B/M OĆ57552 or OĆ57652). Only one module per rack may providethe CCLK signal.If the Pul

ITable of Contents1.0 Introduction 1Ć1...1.1 Related Publications 1Ć1...

4Ć8multiplied by four. If the bit is set to zero, the incoming pulses aremultiplied by two.If a singleĆchannel pulsetach is connected to the module, t

4Ć94.2.5 Mode Definition Register (Register 6)Register 6 is a control register used to define the module's operatingmode. Refer to figure 4.10. T

4Ć10will always count up; however, the FORWARD and REVERSE LEDswill flicker. 9 Inhibit CounterBit 9 is used to stop the counter from c

4Ć110123456798101112131415RegisĆter 6Bitsrw rw rw rw rw rw rw rw rw rw rwrwExternallatchenableExternalcount stopenableCountreverseCount forwardType of

4Ć12 3 Counter Less Than ComparatorBit 3 is set whenever the counter value (registers 0 and 1) is lessthan the comparator value (regis

4Ć13 11 Borrow Status ResetBit 11 has a default value of one. Writing a zero to this bit will resetthe Borrow Status bit (register 7,

4Ć140123456798101112131415Register 7Bitsrw rw rw rw rw r rrw rrr rrr rrCarrystatusBorrowstatusCounter >comparatorCounter <comparatorCounter =com

4Ć154.4 Applying the ModuleIn order for hardware to be referenced by application software, it isfirst necessary to assign symbolic names to the hardwa

4Ć16Speed Mode Example (Continued)4105 INT_R@ = TRUE \! Enable timer interrupt4110 CCLK_EN@ = TRUE \! Enable CCLK (1 CCLK driver per rack)5000 !5001 !

4Ć17Positioning Mode Example (Continued)4005 !ăalways be the lowest priority task.4006 !4010 FOR I%=0TO3\READ LIMIT_SWITCH%(I%) \ NEXT I%4015 RESET@ =

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4Ć184.4.3 Timer and Latch Mode ExampleThe following is an example of a BASIC task that handles interruptsfrom the module. All variables declared as CO

4Ć194.5 Using Interrupts in Application TasksThe input module can be programmed to generate interrupts on thebasis of a time interval, an external lat

4Ć204.6.2 Use in Remote I/O Racks32Ćbit register references should be used with caution when thismodule is placed in a remote rack. The remote I/O sys

05.0 DIAGNOSTICS ANDTROUBLESHOOTING !) )*!&% .'#!%) &- *& *(&+#) &&* *  $&+# % !#&%%*!&%

5Ć2Rotate the pulsetach in the forward direction. TheFORWARD LED on the module's faceplate should turnon. Rotate the pulsetach in the reverse dir

5Ć3Step 7. Verify that the application task is correct.Verify that the application task that references I/O on themodule has defined the corresponding

5Ć45.2 Bus ErrorA bus error is reported on the faceplate of a Processor module asan error code display. A bus error occurs when the system attemptsto

5Ć5Step 5. Verify that the hardware is working correctly.WARNINGINSERTING OR REMOVING A MODULE OR ITS CONNECTING CABLES MAYRESULT IN UNEXPECTED MACHIN

5Ć6  If interrupts are never received and the timeout parameter in thehardware EVENT statement in the task is disabled, the task will

5Ć7Use the MONITOR I/O selection to display registers 6 and7. Continue to toggle the input device and determine ifthe proper bits are changing state.

III  Figure 2.1 Ć Module Faceplate 2Ć2...Figure 2.2 Ć Relationship of Pulsetach Direction to Counter Va

5Ć8Step 2. Verify that the hardware is working correctly.WARNINGINSERTING OR REMOVING A MODULE OR ITS CONNECTING CABLES MAYRESULT IN UNEXPECTED MACHIN

AĆ1Appendix ATechnical SpecificationsAmbient ConditionsD Storage Temperature: -40oto 185oF (-40oto 85oC)D Operating Temperature(at the module): 32oto

AĆ2Appendix A(Continued)Control Signal SpecificationsD Type of Input: Current sink or sourceD Voltage Level: 5 VDC or 12 VDCD Nominal OnĆState Current

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CĆ1Appendix CField ConnectionsTerminalPin No.WireColor CodeFunction1 Brown No Connection2 White/Brown Pulsetach Phase A (+12V)3 Red Pulsetach Phase B

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DĆ1Appendix DRelated Components57C372 Ć Terminal Strip/Cable Assembly.This assembly consists of a terminal strip, cable and mating connector. It is us

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EĆ1Appendix EModule 57421Ć1, 57C421A, and 57C421BCompatibilityModule 57C421A differs from module 57421Ć1 as follows:D Channel A (terminals 12 to 14),

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EĆ2 In addition to these programming changes, inputimpedances have changed from the 57421Ć1 moduleto the 57C421A module. Be sure t

FĆ1Appendix FDefining Variables in theConfiguration TaskThis section describes how to configure the module when it is being used in asystem with the V

FĆ2Appendix F(Continued)When referenced as a double integer of 32 bits, register r" contains thehighĆorder 16 bits and register r+1" conta

FĆ3Appendix F(Continued)Examples of Local I/O DefinitionsThe following statement assigns symbolic name COUNTS! to register 6 on theinput module locate

FĆ4Appendix F(Continued)32ĆBit Register ReferenceUse the following method to reference 32 bits as a single register value. Onestatement is required in

FĆ5Appendix F(Continued)SYMBOLIC_NAME@ =A symbolic name chosen by the user and ending with(@). This indicates a boolean data type and allreferences wi

FĆ6Appendix F(Continued)Sample Configuration TaskThe following is a sample configuration for an input module located in slot 5:1000 TASK PG_SPEED[ TYP

4Appendix GMemory MapRegister Bit Description)/(.!, . .$ !#%-.!,)/(.!, . .$ !#%-.!,)/(.!, . * .! !,%) !#%-.!,)'*

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1Ć11.0 INTRODUCTIONThe products described in this instruction manual are manufacturedor distributed by Reliance Electric Industrial Company.The Pulset

For additional information1 Allen-Bradley DriveMayfield Heights, Ohio 44124 USATel: (800) 241-2886 or (440) 646-3599http://www.reliance.com/automaxCop

1Ć2  M/N 57C421 contains one AutoMax Pulsetach Input module. Themodule is used with Terminal Strip/Cable Assembly M/N 57C372,which m

2Ć12.0 MECHANICAL/ELECTRICALDESCRIPTIONThe following is a description of the faceplate LEDs, field terminationconnectors, and the electrical character