1746-IN006A-US-P, SLC 500 Analog Input Module, Installation
Contents
1. 15V maximum between any two terminals Publication 1746 INQO6A US P 18 SLC 500 Analog Input M odule Physical Specifications Description LED Indicators Specification 9 green status indicators one for each of 8 channels and one for module status Module ID Code Class 1 Interface 3526 Class 3 Interface 12726 Recommended Cable Belden 8761 or equivalent Maximum Wire Size Two 14 AWG wires per terminal Maximum Cable Impedance Voltage Source with less than 10Q impedance 40Q maximum loop impedance for lt 1LSB error Current Source transmitter properly wired to its power supply 250Q maximum loop impedance to meet common mode voltage requirements Terminal Block Removable Allen Bradley spare part Catalog Number 1746 RT25G Environmental Specifications Description Specification Operating Temperature 0 C to 455 C 32 F to 133 F in any slot except 0 0 C to 60 C 32 F to 140 F in right most slot of chassis Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 without condensation Agency Certification UL listed CSA approved CE compliant for all applicable directives Hazardous Environment Classification Class 1 Division 2 Hazardous Environment Publication 1746 IN006A US P Input Specifications Description Type of Input Selectable SLC 500 Analog Input M odule 19 Specification 10V dc2. 1 to 5V dc 0 to 5V de 0 to 10V dc 0 to 20 mA 4to 20 mA 20 mA 0 to 1 mA Type of Data Selectable Engineering Units Scaled for PID Proportional Counts 32 768 to 432 767 range Proportional Counts User Defined Range Class 3 only 1746 N14 Data Format Input Impedance 1MQ Voltage Input maximum 30V between any two signal terminals Current Input maximum 30 mA Time to Detect Open Circuit 1 module scan Input Step Response 1 Input Resolution Display Resolution ImVorluA ImVorluA Overall M odule Accuracy 0 C to 60 C 32 F to 140 F Overall M odule Drift Voltage input types 10V de 1 to 5V dc 0 to 5V dc 0 to 10V dc 0 1 Current Input Types 0 to 20 mA 4 to 20 mA 20 mA 0 05 Current Input Type 0 to 1 mA 0 5 Voltage input type 6 ppm C Current Input Type 12 ppm C 1 Depends on filter selected Refer to the 1746 NI8 User Manual publication 1746 6 8 Publication 1746 INQO6A US P SLC 500 is a trademark of Rockwell Automation Belden is a trademark of Belden Inc 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 Pacif
3. 7 EN ie oie enang eo shield ie es gle end sb Channel 2 signal source a e shield e 7 GN LAN single e d E Channel 3 signal source shield ed r differentia Channel 4 signal source M shield 2 e a differentia Channel 5 _ signal source A shield SZ P D ii differe ia Ne Channel 6 signal source 3 SS F shield E differentia Channel 7 i signal source shield Shield L Publication 1746 IN 006A US P SLC 500 Analog Input M odule 13 W hen wiring single ended analog input devices to the analog input module the number of total wires necessary can be limited by jumpering all IN terminals together Note that differential inputs are more immune to noise than single ended inputs The module does not provide loop power for analog inputs U se a power supply that matches the transmitter specifications Wiring Schematic for Single Ended Analog Input Connections 1746 NI8 smitter Supply Signal Ground Publication 1746 INQO6A US P 14 SLC 500 Analog Input M odule Wiring Schematics for 2 3 and 4 Wire Analog Input Devices 2 W ire Transmitter Transmitter Transmitter Supply Transmitter The module does not provide loop power for analog inputs U se a power supply that matches the transmitter specifications Publication 1746 IN006A US P SLC 500 Analog Input M odule 15 Wiring Guidel
4. AB Installation Instructions SLC 500 Analog Input Module Catalog Number 1746 N 18 Inside Important User Information For More Information sss Hazardous Location Considerations ssssssssesssesssssessseesssesssnesssneen 4 Environnements dangereusement Electrostatic Damages Rire tuse 1746 N18 Power Requirements sessesseeseesseesesseesnesssessecssesseesseessesesasee Module Location in Chassis Heat and Noise Considerations cesses Module Installation and Removal Terminal WINN enen nine ini nnnn ns INPUT D VICES sessccevecitins cesaniciredactlevsatindtcitaditiansaiiasieadasiia laine S POCIICALONS annin aa ind atin Taa Publication 1746 INQO6A US P 2 SLC 500 Analog Input M odule Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards Theillustrations charts sample programs and layout examples shown in this guide are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Allen Bradley does not assume responsibility or liability to include intelectual property liability for actual
5. QO6A US P 8 SLC500 Analog Input M odule Terminal Block Removal To remove the terminal block 1 Loosen the two terminal block release screws Terminal Block Release Screws Maximum Torque 0 7 to 0 9 Nm 6 to 8 in Ibs Clololololclclele ferclelelelelealelea 2 Grasp the terminal block at the top and bottom and pull outward and down Switch Settings to Select Voltage or Current Input Before installing the module in the chassis use the DIP switches on the module circuit board to select between voltage and current inputs for channels 0 through 7 The switch settings are e OFF VOLTAGE INPUT e ON CURRENT INPUT SLC 500 ANALOG INPUT MODULE 746 NI8 10 dr on CURRENT 9 N t VOLTAGE CHO CH7 Publication 1746 IN 006A US P SLC 500 Analog Input M odule 9 Module Installation Procedure 1 Align the circuit board of the analog input module with the card guides located at the top and bottom of the chassis N Slide the module into the chassis until both top and bottom retaining clips are secured Apply firm ev
6. SLC chassis to prevent overloading the chassis power supply Publication 1746 INQO6A US P 6 SLC 500 Analog Input M odule Module Location in Chassis Modular Chassis Considerations Place your 1746 N 18 module in any slot of an SLC 500 modular or modular expansion chassis except for the extreme left slot slot 0 in the first chassis T his slot is reserved for the processor or adapter modules For applications using the upper limit of the operating temperature range the 1746 N 18 module or multiple modules should be placed in the right most slot s of the chassis Operating Temperature Range Temperature Chassis Location 40 C to 55 C 32 F to 131 F Any slot except slot 0 0 C to 60 C 32 F to 140 F In right most slot of chassis Fixed Expansion Chassis Considerations The 2 slot SLC 500 fixed I O expansion chassis 1746 A2 supports only specific combinations of modules If you are using the 1746 N 18 module in a 2 slot expansion chassis with another SLC 1 0 or communication module refer to the 1746 N 18 user manual to determine whether the combination can be supported Publication 1746 IN006A US P SLC 500 Analog Input M odule 7 Heat and Noise Considerations M ost applications require installation in an industrial enclosure to reduce the effects of electrical interference Analog inputs are highly susceptible to electrical noise Electrical noise coupled to the analog inputs reduces the p
7. ementing the following equation in your ladder program V V R Rin S 7T measured Rin Vs input device voltage Rs input device impedance where Rin 1746 NI8 input impedance See Specifications on page 17 Publication 1746 INOQO6A US P 16 SLC 500 Analog Input Module Wiring Input Devices to the 1746 NI8 After the analog input module is properly installed in the chassis follow the wiring procedure below using Belden 8761 cable ATTENTION Care should be taken to avoid connecting a voltage source to a current input module Improper module operation or damage to the voltage source can occur Cut foil shield and drain wire Signal Wire Signal Wire Signal Wire Drain Wire Foil Shield Signal Wire Twist the drain wire and foil shield together and connect to earth ground or to the shield terminal on the 1746 N18 module To wire your 1746 N 18 module follow these steps m At each end of the cable strip some casing to expose the individual wires Trim the signal wires to 50 mm 2 inch lengths Strip about 5 mm 3 16 inch of insulation away to expose the end of the wire At one end of the cable twist the drain wire and foil shield together T his end of the cable is connected to one of the shield terminals on the 1746 N 18 module Connect shields for channels 0 through 3 to the upper shield terminal and shields for channels 4 through 7 to the lower shield terminal At the other end
8. en pressure on the module to attach it to its backplane connector N ever force the module into the slot 3 Cover all unused slots with the Card Slot Filler catalog number 1746 N 2 Top and Bottom M odule Release s Module Removal Procedure 1 Press the releases at the top and bottom of the module and slide the module out of the chassis slot 2 Cover all unused slots with the Card Slot Filler catalog number 1746 N 2 Publication 1746 INQO6A US P 10 SLC 500 Analog Input Module Terminal Wiring The1746 N18 module contains an 18 position removable terminal block T he terminal pin out is shown below Disconnect power to the SLC before attempting to install remove or wire the removable terminal wiring block To avoid cracking the removable terminal block alternate the removal of the slotted terminal block release screws Terminal Block Terminal Block Spare Part Catalog Number 1746 RT25G sie TO Channel 0 Channel 0 _ E SI Channel 1 Channel 1 e er x Channel 2 annel 2 x x Channel 3 Channel 3 x ae Si Channel 4 Channel 5 Channel 5 p Sr x Channel 6 Channel 6 x x Channel 7 Channel 7 x x Shield Terminal Block Release Screw Ma
9. erformance accuracy of the module Group your modules to minimize adverse effects from radiated electrical noise and heat Consider the following conditions when selecting a slot for the analog input module Position the module e in a slot away from sources of electrical noise such as hard contact switches relays and AC motor drives away from modules which generate significant radiated heat such as the 32 point 1 0 module series C or earlier In addition route shielded twisted pair analog input wiring away from any high voltage O wiring Module Installation and Removal W hen installing the modulein a chassis it is not necessary to remove the terminal block from the module H owever if the terminal block is removed use the write on label Shown below located on the side of the terminal block to identify the module location and type SLOT RACK MODULE ATTENTION Remove power before removing or inserting this module W hen ATTENTION you remove or insert a module with power applied an electrical arc may occur An electrical arc can cause personal injury or property damage by sending an erroneous signal to your system s field devices causing unintended machine motion e causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the module and its mating connector Worn contacts may create electrical resistance Publication 1746 INO
10. ic Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1746 INO06A US P February 2000 PN 40071 081 01 A 2006 Rockwell Automation Inc All rights reserved Printed in Singapore
11. ines To prevent shock hazard care should be taken when wiring the module to analog signal sources Before wiring any analog module disconnect power from the SLC 500 system and from any other source to the analog module Follow the guidelines below when planning your system wiring To limit noise keep signal wires as far away as possible from power and load lines e To ensure proper operation and high immunity to electrical noise always use Baden 8761 shielded twisted pair or equivalent wire Connect the shield drain wire to the shield terminal on the 1746 N18 module Up to four shield wires may be connected to each shield screw terminal that provides a connection to chassis ground e Tighten terminal screws using a screwdriver Each screw should be turned tight enough to immobilize the wires end Excessive tightening can strip the terminal screw T he torque applied to each screw should not exceed 0 9 N m 8 in lb for each terminal e Follow system grounding and wiring guidelines found in your SLC 500 M odular Hardware Style Installation and O peration M anual publication 1747 6 2 Input Devices Transducer Source Impedance If the source impedance of the input device and associated cabling is too high it affects the accuracy of the channel data word Source impedance of 500 ohms produces up to 0 05 of module error over and above the specified accuracy of the module You can compensate for device impedance error by impl
12. of the cable cut the drain wire and foil shield back to the cable Connect the signal wires and shield drain wire to the 1746 N 18 terminal block or interposing terminal block N W uo e a Connect the other end of the cable to the voltage or current transmitter terminals Repeat steps 1 through 6 for each channel on the module Publication 1746 IN006A US P Specifications Electrical Specifications Description Backplane Current Consumption SLC 500 Analog Input M odule 17 Specification 200 mA at 5V dc 100 mA at 24V dc Backplane Power Consumption 3 4W maximum 1 0W at 5V dc 2 4W at 24V dc Number of Channels 8 backplane isolated 1 0 Chassis Location Any I O module slot except slot 0 A D Conversion M ethod Input Filtering Successive appoximation switched capacitor Low pass digital filter with programmable filter frequencies Normal M ode Rejection between input and Analog Com Provided by low pass filter Common M ode Rejection between inputs and chassis ground Greater than or equal to 75 dB at DC Greater than or equal to 100 dB at 50 60 Hz Input Filter Frequencies 1 Hz 2 Hz 5 Hz 10 Hz 20 Hz 50 Hz 75 Hz Calibration Isolation The module performs continuous autocalibration 500V dc continuous between the analog inputs and the backplane 530V ac and 750V dc pulse withstand for one second Common M ode Voltage Range 10 5V
13. ould like a manual you can e download a free dectronic version from the internet 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 calling1 800 963 9548 USA Canada or 001 330 725 1574 Outside U SA C anada Publication 1746 INQO6A US P 4 SLC 500 Analog Input Module Hazardous Location Considerations This equipment is suitable for use in Class 1 Division 2 GroupsA B C D or non hazardous locations only T he following WARNIN G statement applies to use in hazardous locations WARNING EXPLOSION HAZARD e Substitution of components may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switched off Do not connect or disconnect components unless power has been switched off e All wiring must comply with N E C article 501 4 b Environnements dangereux Cet quipement est concu pour tre utilis dans des environnements de C lasse 1 Division 2 Groupes A B C D ou non dangereux La mise en garde suivante sapplique a une utilisation dans des environnements dangereux MISE EN GARDE DANGER D EXPLOSION La substitution de composants peut rendre cet quipement impropre une utilisation en environnement de Classe 1 Division 2 Ne pas remplacer de composants ou d connecter l qui
14. pement sans s tre assur que l alimentation est coup e Ne pas connecter ou d connecter des composants sans s tre assur que l alimentation est coup e Publication 1746 IN 006A US P SLC 500 Analog Input M odule 5 Electrostatic Damage Electrostatic discharge can damage semiconductor devices inside this module if you touch backplane connector pins Guard against electrostatic damage by observing the following precautions Electrostatic discharge can degrade performance or cause permanent damage H andle the module as stated below e Wear an approved wrist strap grounding device when handling the module e Touch agrounded object to rid yourself of electrostatic charge before handling the module e Handlethe module from the front away from the backplane connector Do not touch backplane connector pins e Keep the module in its static shidd bag when not in use or during shipment 1746 N18 Power Requirements The 1746 N 18 module receives its power through the SLC 500 chassis backplane from the fixed or modular 5V dc 24V dc chassis power supply The 5V dc backplane supply powers the SLC circuitry and the 24V dc backplane supply powers the module analog circuitry The maximum current drawn by the module is shown in the table below 5V dc Amps 24V dc Amps 200 mA 100 mA W hen you are using a modular system configuration add the values shown in the table above to the requirements of all other modulesin the
15. use based upon the examples shown in this publication Allen Bradley publication SGI 1 1 Safety Guidelines for the Application Installation and M aintenance of Solid State C ontrol available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or part without written permission of Rockwell Automation is prohibited ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attention statements help you to e identify a hazard e avoid the hazard recognize the consequences Identifies information that is critical for successful application and understanding of the product Publication 1746 IN 006A US P SLC 500 Analog Input M odule 3 For More Information For detailed information on planning and installing your system see the following publications Publication Publication Number Industrial Automation Wiring and Grounding Guidelines 1770 4 1 SLC 500 Analog Input M odules User M anual 1746 6 8 SLC 500 M odular Hardware Style Operation and Installation Manual 1747 6 2 SLC 500 Fixed Hardware Style Operation and Installation M anual 1747 6 21 If you w
16. ximum Torque 0 7 to 0 9 Nm 6 to 8 in Ibs Publication 1746 IN 006A US P SLC 500 Analog Input M odule 11 Wiring Single Ended Inputs The following diagram shows typical wiring for the 1746 N18 module Follow these guidelines when wiring the module e Use shielded communication cable Belden 8761 and keep length as short as possible Connect only one end of the cable shield to earth ground Connect the shield drain wires for channds 0 to 3 to the top shield terminal Shield terminals are internally connected to chassis ground which is connected to earth ground viathe SLC backplane Single ended source commons may be jumpered together at the terminal block Channels are not isolated from each other If adifferent signal source has an analog common it cannot and must not be connected to the module Common mode voltage range is 10 5 volts T he voltage between any two terminals must be less than 15 volts The module does not provide power for the analog inputs e Use a power supply that matches the transmitter sensor specifications Publication 1746 INQO6A US P 12 SLC 500 Analog Input Module Typical 1746 N18 Wiring Power Supply Connections gt Shield single end T CR signal source 4 LS shield e
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