1746-IN002A-US-P, Multi-Channel High
Contents
1. 12 volts The 24V dc settings respond to inputs with active or high settings between 10 and 30 volts Publication 1746 IN002A US P 8 Multi Channel High Speed Counter Installing the Module Disconnect power before attempting to install remove or wire the module Make sure your SLC power supply has adequate reserve current capacity The module requires 250 mA at 5V dc N Align the full sized circuit board with the chassis card guide as shown below The first slot of the first chassis is reserved for the processor Oe Slide the module into the chassis until the top and bottom latches catch To remove the module press the release clips at the top and bottom of the module and slide it out EN Cover all unused card slots with the Card Slot Filler catalog number 1746 N2 Publication 1746 IN002A US P Multi Channel High Speed Counter 9 Important Wiring Considerations Use the following guidelines when planning the system wiring for the module Install the SLC 500 system in a NEMA rated enclosure Disconnect power to the SLC processor and the module before wiring Make sure the system is properly grounded Group this module and low voltage DC modules away from AC I O or high voltage DC modules Shielded cable is required for high speed input signals A B and Z Use individually shielded twisted pair cable lengths up to 300 m 1000 ft Shields should be grounded only at one en2. 250 mA at 5V dc power supply loading 0 mA at 24V dc Backplane Isolation 1000V de Maximum Cable Length 300m 1000 ft Agency Certification UL listed C UL listed Class I Division 2 Groups A B C and D CE certified for all applicable directives when product or packaging is marked Publication 1746 IN002A US P Multi Channel High Speed Counter 17 Inputs A B and Z Jumper Setting SV de 24V de Nominal Input Voltage SV de 24V de Input Voltage Range 4 2V dc to 12V de 10V dc to 30V de On State Voltage min 4 2V 10V Off State Voltage max 0 8V 3V Maximum Off state Leakage 100 pA 100 pA Current Input Current max 8 mA 20 mA Input Current min 6 3 mA 6 3 mA Nominal Input Impedance 500 Q 1500 Q Min Pulse Width 475 ns 475 ns Min Phase Separation 200 ns 200 ns Max Input Frequency 1 MHz 1 MHz Isolation from backplane 1000V 1000V Isolation from outputs 500V 500V Publication 1746 IN002A US P 18 Multi Channel High Speed Counter Outputs sourcing Max On State Output Current per 1 0 A at 40 C channel 1 0 A at 60 C Max On State Current per module 2 0 A at 40 C 1 5 A at 60 C Max On State Voltage Drop 0 5V Max Off State Leakage Current 100 uA Isolation from backplane 1000V Isolation from inputs 500V ATTENTION A transient pulse occurs in transistor outputs when the external dc supply voltage is applied to t
3. AB Installation Instructions Multi Channel High Speed Counter 1746 HSCE2 Inside For More Information csi ea 2 Compliance to European Union Directives 3 Hazardous Location Considerations e 4 Environnements dangereux 4 Hardware Features lt i csccsssscsssssssscssssssssssssssssocasecvssvesesecsocascaveasessss 5 LEEDS scooter iii 6 Prevent Electrostatic Discharge Setting the TUM Pers saysves nane Installing the Module ss 8 Important Wiring Considerations iene 9 Removing the Terminal Block 10 Input and Output Connections 10 Encoder Wiring Electromic ProtectiOM is ies scassesctessicesescessuscssopeaesseisesssctetuantescns 14 Specifica ONS iesiri a aae ee ea EFE EE EEE 16 Publication 1746 IN002A US P 2 Multi Channel High Speed Counter For More Information As part of our effort to preserve protect and improve our environment Allen Bradley is reducing the amount of paper we use Less paper means more options for you In addition to traditional printed publications and CD ROM versions we now offer on line materials with the most up to date information you can get We recommend that you read the related publications listed below before starting up your control system Related Publications For Refer to this Document Pub No A more detailed description on how to Multi channel High Speed 1746 6 20 inst
4. Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment Low Voltage Directive This product is tested to meet Council Directive 73 23 EEC Low Voltage by applying the safety requirements of EN 61131 2 Programmable Controllers Part 2 Equipment Requirements and Tests For specific information required by EN61131 2 see the appropriate sections in this publication as well as the following Allen Bradley publications e Industrial Automation Wiring and Grounding Guidelines for Noise Immunity publication 1770 4 1 e Automation Systems Catalog publication B111 Publication 1746 IN002A US P 4 Multi Channel High Speed Counter Hazardous Location Considerations This equipment is suitable for use in Class I Division 2 Groups A B C D or non hazardous locations only The following ATTENTION statement applies to use in hazardous locations AN INTER EXPLOSION HAZARD e Substitution of components may impair suitability for Class I Division 2 e Do not replace components or disconnect equipment unless power has been switched off and the area is known to be non hazardous e Do not connect or disconnect connectors or operate switches while circuit is live unless the area is known to be non hazardous e All wiring must comply with N E C article 501 4 b Environnements dangereux Cet quipement est con u pour tre utilis dans des environneme
5. all configure and operate your Counter User Manual multi channel high speed counter A detailed description on how to install SLC 500 Modular Hardware 1747 6 2 and use your modular SLC 500 system Style Installation and Operation Manual A reference manual that contains status SLC 500 and 1747 6 15 file data and instruction set information MicroLogix 1000 for SLC 500 processors Instruction Set Reference Manual How to Get More Information If you would like a manual you can e download a free electronic version from the internet at www theautomationbookstore com e purchase a printed manual by contacting your local distributor or Rockwell Automation representative visiting www theautomationbookstore com and placing your order calling 1 800 963 9548 USA Canada or 001 330 725 1574 Outside USA Canada Publication 1746 IN002A US P Multi Channel High Speed Counter 3 Compliance to European Union Directives If this product has the CE mark it is approved for installation within the European Union and EEA regions It has been designed and tested to meet the following directives EMC Directive This product is tested to meet Council Directive 89 336 EEC Electromagnetic Compatibility EMC and the following standards in whole or in part documented in a technical construction file e EN 50081 2 EMC Generic Emission Standard Part 2 Industrial Environment e EN 50082 2 EMC
6. d Ground the shield wire outside the module at the chassis mounting screw Connect the shield at the encoder end only if the housing is isolated from the motor and ground If you have a junction in the cable treat the shields as a conductor at all junctions Do not ground them to the junction box Considerations for Reducing Noise In high noise environments the 1746 HSCE2 inputs may accept false pulses particularly when using low frequency input signals with slowly sloping pulse edges To minimize the effects of high frequency noise on low frequency signals the user can do the following Identify and remove noise sources Route 1746 HSCE2 input cabling away from noise sources Install low pass filters on input signals Filter values are dependent on the application and can be determined empirically Use devices which output differential signals like differential encoders to minimize the possibility that a noise source will cause a false input Publication 1746 IN002A US P 10 Multi Channel High Speed Counter Removing the Terminal Block Remove the terminal block by turning the slotted terminal block release screws counterclockwise The screws are attached to the terminal block so the block will follow as the screws are turned out ATTENTION To avoid cracking the removable terminal block alternate removal of the slotted terminal block release screws Input and Output Connections Input and output wiring te
7. e event of a short circuit or overload current condition on an output channel all channels turn off within milliseconds after the thermal cut out temperature has been reached TT The module does not provide protection against reverse polarity wiring or wiring to AC power sources Electronic protection is not intended to replace fuses circuit breakers or other code required wiring protection devices Auto Reset Operation IMPORTAN 1746 HSCE2 outputs perform auto reset under overload conditions When an output channel overload occurs as described above all channels turn off within milliseconds after the thermal cut out temperature has been reached While the overcurrent condition is present the module tries resetting the outputs at intervals of 500 ms If the fuse cools below the thermal cut out temperature all outputs will auto reset and resume control of their external loads as directed by the module until the thermal cut out temperature is again reached Removing power from an overloaded output channel would also allow the fuse to cool below the thermal cut out temperature allowing auto reset to occur when power is restored The output channel then operates as directed by the module until the thermal cut out temperature is again reached To avoid auto reset of output channels under overload conditions monitor the fuse blown status bit FB1 in the module s status file and latch the output off when an overcurrent condit
8. encoder does not match these waveforms some wiring modifications may be necessary See the user s manual for your encoder Sa Oe a ig re Am a l Lf Sn i A A B B Publication 1746 IN002A US P 12 Multi Channel High Speed Counter Single Ended Encoder Wiring Open Collector cable vs v0C J Power GND COM Supply R A A AO he NY 8 B Allen Bradley BO 845H Series z Z single ended d 20 RA v encoder shield shield housing Earth Connect only if housing is electronically isolated from the motor and ground Module Inputs 1 Refer to your encoder manual for proper cable type The type of cable used should be twisted pair individually shielded cable with a maximum length of 300m 1000 ft 2 External resistors are needed if not internal to the encoder The pull up resistor R value depends on the power supply value The table below shows resistor values for typical supply voltages To calculate the resistor value use one of the following formulas Vcc Vmin For 5V dc jumper position R Imin For 24V dc jumper position R Vcc Vmin _ 1 Ka Imin where R pull up resistor value Vcc power supply voltage Vmin 4 2 V de Imin 6 3 mA Power Supply Voltage Vcc Pull up Resistor Value RA Vide RIA 12V dc 238 Q 24V de 2140 Q 1 Resistance values may change depending upon your app
9. he output common terminals for example via the master control relay This can occur regardless of the processor having power or not For most applications the energy of this pulse is not sufficient to energize the load Refer to the SLC 500 Modular Hardware Style Installation and Operation Manual publication 1747 6 2 for more information on transient pulses and guidelines to reduce inadvertent processor operation Publication 1746 IN002A US P Multi Channel High Speed Counter 19 Publication 1746 IN002A US P www rockwellautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1746 IN002A US P February 2000 PN 40071 078 01 A Supersedes Publication 1746 5 21 March 1999 2000 Rockwell International Corporation Printed in the U S A
10. ion occurs An external mechanical fuse can also be used to open an output circuit when it is overloaded Publication 1746 IN002A US P Multi Channel High Speed Counter 15 Short Circuit Overload Current Diagnostics If a short circuit or overload current condition occurs on an output channel 1 The FLT LED flashes provided that power is applied to the module 5V de via backplane and load power via an external supply is required 2 Fuse status bit FB1 is set 1 when the fuse is tripped The module tries to reset the outputs at intervals of 500 ms During each retry the fuse status bit is reset 0 After the overload condition is corrected the fuse status bit resets 0 automatically When FBI is set outputs 0 through 4 will not function 3 All output channels will be turned off in the case of a short circuit or overload condition Recovery from Channel Shutdown 1 Remove the SLC 500 system power and correct the conditions causing the short circuit or overload current condition 2 Restore the SLC 500 system power The module automatically resets and resumes control of the output channel and associated load Publication 1746 IN002A US P 16 Multi Channel High Speed Counter Specifications General Operating Temperature 0 C to 60 C 32 F to 140 F Storage Temperature 40 C to 85 C 40 F to 185 F Humidity 5 to 95 without condensation Backplane Current Consumption
11. lication Single Ended Encoder Output Waveforms The figure below shows the single ended encoder output waveforms When the waveform is low the encoder output transistor is on When the waveform is high the encoder output transistor is off aJ EF Er BTE z a Publication 1746 IN002A US P Multi Channel High Speed Counter 13 Single Ended Wiring Discrete Devices proximity sensor photoelectric sensor with open collector sinking output Module Inputs 1 External resistors are needed if not internal to the sensor Check your sensor s documentation The pull up resistor R value depends on the power supply value The table below shows resistor values for typical supply voltages To calculate the resistor value use one of the following formulas For 5V dc R Vec Vmin Imin For 24V dc 3 Pena Vmin 1ko Imin where R pull up resistor value Vcc power supply voltage Vmin 4 2 V de Imin 6 3 mA Power Supply Voltage Vcc Pull up Resistor Value RA SV dc 127 Q 12V de 238 Q 24V de 2140 Q 1 Resistance values may change depending upon your application Publication 1746 IN002A US P 14 Multi Channel High Speed Counter Electronic Protection The electronic protection of the 1746 HSCE2 has been designed to provide protection for the module from short circuit and overload current conditions The protection is based on a thermal cut out principle In th
12. nts de Classe 1 Division 2 Groupes A B C D ou non dangereux La mise en garde suivante s applique une utilisation dans des environnements dangereux DANGER D EXPLOSION e La substitution de composants peut rendre cet quipement impropre une utilisation en environnement de Classe 1 Division 2 e Couper le courant ou s assurer que l emplacement est d sign non dangereux avant de remplacer les composants e Couper l alimentation ou s assurer que l environnement est class non dangereux avant de brancher ou d brancher des connecteurs ou de faire fonctionner des commutateurs Publication 1746 IN002A US P Multi Channel High Speed Counter 5 Hardware Features The module s hardware features are illustrated below COUNTER OUTPUT STATUS Output Status LEDs Rae E Ai Gi Bi RUN Running Status LED Input Status LEDs ma 62 za mm FLT Fault Status LED INPUT STATUS Input and Outp Terminals 218 Bi Bi S S BIO ela a 0 E De Publication 1746 IN002A US P 6 Multi Channel High Speed Counter LEDs The front panel has a total of twelve indicator LEDs LED Color Indicates 0 OUT Green ON OFF status of real output 1 OUT Green ON OFF status of real output 2 OUT Green ON OFF status of real output 3 OUT Green ON OFF status of real output RUN Green Running
13. rminals are shown in the figure below Each terminal accepts two 14 AWG wires Tighten screws only tight enough to immobilize the wire The torque applied to the screw should not exceed 0 9 Nm 8 in Ib A1 a a Screw B1 g 81 Z1 RI a a A2 QI a pa B2 a ba Z2 a na OUTPUT COMMON RI cin oar OUTPUT 3 RI Release Screw pt Vde Encoder Wiring Differential encoders provide the best immunity to electrical noise We recommend whenever possible to use differential encoders The wiring diagrams on the following pages are provided to support the Allen Bradley encoders you may already own Publication 1746 IN002A US P Multi Channel High Speed Counter 11 Differential Encoder Wiring Cable Allen Bradley 845H Series differential encoder Shield shield housing Earth Connect only if housing is electronically isolated from the motor and ground Module Inputs 1 Refer to your encoder manual for proper cable type The type of cable used should be twisted pair individually shielded cable with a maximum length of 300m 1000 ft Differential Encoder Output Waveforms The figure below shows the different encoder output waveforms If your encoder matches these waveforms the encoder signals can be directly connected to the associated screw terminals on the module For example the A lead from the encoder is connected to the module s A screw If your
14. status of the module FLT Red Steady on Module fault Flashing Output overcurrent Al Yellow ON OFF status of input Al A2 Yellow ON OFF status of input A2 Bl Yellow ON OFF status of input B1 B2 Yellow ON OFF status of input B2 ZI Yellow ON OFF status of input Z1 Z2 Yellow ON OFF status of input Z2 Prevent Electrostatic Discharge Static discharges may cause permanent damage to the ATTENTION ATTENTION module Follow these guidelines when you handle the module e Touch a grounded object to discharge static potential e Wear an approved wrist strap grounding device e Handle module by plastic case only Avoid contact between module circuits and any surface which can hold an electrostatic charge e If available use a static safe work station Publication 1746 IN002A US P Multi Channel High Speed Counter 7 Setting the Jumpers Six jumpers are located in a row on the side of the module Use the jumpers to select the input voltage for each of the inputs A1 B1 Z1 A2 B2 and Z2 The settings are shown in the figure below Jumper Settings 5V de 24V de JP1 A1 4 2 12V de 10 30V dc JP2 B1 JP3 Z1 B g JP4 A2 OOUI JP5 B2 JP6 Z2 a o Eg D For a 12V dc encoder signal use the 24V dc jumper setting ATTENTION If jumpers are not set to match the encoder type the module may be damaged The 5V dc settings respond to inputs with a active or high settings between 4 2 and
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