Allen-Bradley 120V Input Module Installation Instructions
Allen-Bradley 120V Input Module is a modular component of the 1771 I/O system, designed for use in a Pollution Degree 2 industrial environment. It offers 32 inputs, configurable in groups of 8, and operates on a 120V AC power supply. This module provides robust input filtering to mitigate the impact of voltage transients caused by contact bounce or electrical noise, enhancing system reliability. The module's status indicators provide visual feedback on the input states, facilitating troubleshooting and monitoring.
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Installation Instructions AC (120V) Input Module Catalog Number 1771–IAN Contents Use this document as a guide when installing the catalog number 1771-IAN input module. To Important User Information Important Preinstallation Considerations See page 1 4 Calculate Power Requirements Key the Backplane Connector 5 5 Install the Module and Field Wiring Arm 6 Connect Wiring to the Field Wiring Arm 7 For this reference information Intepreting the Status Indicators Harzardous Locations Specifications Important User Information See page 10 10 11 Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products 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. In no event will Rockwell Automation be responsible or liable for indirect or consequential damage resulting from the use or application of these products. Any illustrations, charts, sample programs, and layout examples shown in this publication are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Rockwell Automation does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication. Allen–Bradley publication SGI–1.1, Safety Guidelines for Application, Installation, and Maintenance of Solid–State Control (available from your local Rockwell Automation 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. Publication 1771-IN032B-EN-P - July 2002 2 AC (120V) Input Module Reproduction of the contents of this copyrighted publication, in whole or part, without written permission of Rockwell Automation, is prohibited. Throughout this publication, notes may be used to make you aware of safety considerations. The following annotations and their accompanying statements help you to identify a potential hazard. avoid a potential hazard, and recognize the consequences of a potential hazard. WARNING ! ATTENTION ! Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss. Identifies information about practices or circumstances that may lead to personal injury or death, property damage, or economic loss. Identifies information that is critical for IMPORTANT successful application and understanding of the product. Publication 1771-IN032B-EN-P - July 2002 AC (120V) Input Module ATTENTION ! 3 Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664–1), at altitudes up to 2000 meters without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance. This equipment is supplied as “open type” equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present, and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications. See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosures. Also, see the appropriate sections in this publication, as well as the Allen–Bradley publication 1770–4.1, (“Industrial Automation Wiring and Grounding Guidelines”), for additional installation requirements pertaining to this equipment. Publication 1771-IN032B-EN-P - July 2002 4 AC (120V) Input Module ATTENTION ! Pre-installation Considerations Preventing Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. • Wear an approved grounding wriststrap. • Do not touch connectors or pins on component boards. • Do not touch circuit components inside the equipment. • If available, use a static–safe workstation. • When not in use, keep modules in appropriate static–safe packaging. The 1771–IAN ac input module is a sink input and requires a source output. A sink input provides a path to ground and a source output provides a positive voltage path. You must use this module in a series B 1771 I/O chassis. Refer to the table below for processor compatibility. Processor Compatibility Chart System Type Use with Processors: Local Mini-PLC-2/02 (cat. no. 1772-LZ, -LZP) Mini-PLC-2/16 (cat. no. 1772-LX, -LXP) Mini-PLC-2/17 (cat. no. 1772-LW, -LWP) PLC-5/15, Series B and later (cat. no. 1785-LT) Remote (with a 1771-ASB PLC-2/20 (cat. no. 1772-LP2) remote I/O adapter) PLC-2/30 (cat. no. 1772-LP3) PLC-3 (cat. no. 1775-L1, -L2, -L3, -L4) PLC-3/10 (cat. no. 1775-LP4, -LP8) PLC-5/15, Series B and later (cat. no. 1785-LT) WARNING ! When used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable enclosure with proper wiring method that complies with the governing electrical codes. Do not place this module in the same I/O chassis as the 1771–IX thermocouple module. You can use this module in the same chassis as the 1771–IXE thermocouple module. Publication 1771-IN032B-EN-P - July 2002 5 AC (120V) Input Module This module is not compatible with 2–slot addressing. You must use 1–slot addressing with restrictions or 1/2–slot addressing with no restrictions. This module has input filtering to limit the effect of voltage transients caused by contact bounce and/or electrical noise. Specifications for input filtering are listed in the specifications at the end of this document. Calculate Power Supply Requirements Your module receives its power for internal logic circuitry through the 1771 I/O chassis backplane from the chassis power supply. The module requires 280mA from the output of this supply. To calculate the requirements for the backplane power supply, add 280mA to the power requirements of all other modules in the I/O chassis. Calculating the requirements will prevent an overload to the chassis backplane and/or backplane power supply. Key the Backplane Connector Position the keying bands in the backplane connectors to correspond to the key slots on the module. Place the keying bands: between 16 and 18 between 20 and 22 Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters. ATTENTION Observe the following ! precautions when inserting or removing keys: • insert or remove keys with your fingers • make sure that key placement is correct Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults. Upper Connector I/O chassis You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary. 11022ĆI Publication 1771-IN032B-EN-P - July 2002 6 AC (120V) Input Module Install the Module and Field Wiring Arm ATTENTION ! Remove power from the 1771 I/O chassis backplane before you install the module. Failure to remove power from the backplane could cause: • module damage • degradation of performance • injury or equipment damage due to possible unexpected operation WARNING ! When you insert or remove the module with power applied, or connect or disconnect the field wiring arm with field side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. the module in the card guides on the top and bottom of the chassis 1 Place that guide the module into position. Important: Apply firm even pressure on the module to seat it into its backplane connector. 1771ĆA1B, ĆA2B, ĆA3B, ĆA4B I/O chassis Snap the chassis latch over the top of the module to secure it. 1771ĆA1B, ĆA2B, ĆA4B Series B I/O chassis Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage. the wiring arm (1771ĆWN) to the horizontal bar at the 2 Attach bottom of the I/O chassis. The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires. 1771ĆWN The 1771–IAN module is a modular component of the 1771 I/O system requiring a properly installed system chassis. Refer to publication 1771–IN075 for detailed information on acceptable chassis and proper installation and grounding requirements. Limit the maximum adjacent slot power dissipation to 10W maximum. Publication 1771-IN032B-EN-P - July 2002 AC (120V) Input Module Connecting Wiring to the Field Wiring Arm 7 You make connections to the module through the field wiring arm cat. no. 1771-WN. The arm pivots on the I/O chassis to connect with terminals on the front of the module and acts as a terminal strip. The wiring arm allows the module to be removed from the chassis without disconnecting wiring. WARNING ! When you connect or disconnect the field wiring arm with field power applied, or you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. ATTENTION ! Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing an I/O module. • Failure to remove power from the backplane or wiring arm could cause module damage, degradation of performance, or injury. • Failure to remove power from the backplane could cause injury or equipment damage due to possible unexpected operation. 1. Make certain all power is removed from the module before making wiring connections. 2. Swing the wiring arm up into position on the front of the module. The locking tab on the module will secure it into place. 3. Make your connections to the field wiring arm as shown in the connection diagram. (Use the label on the front of the wiring arm to identify your wiring.) The field wiring arm terminal identification IMPORTANT number is not the same as the number of the bit which controls that output. Publication 1771-IN032B-EN-P - July 2002 8 AC (120V) Input Module I/O Module Groups Each module condenses 2 full module groups (32 inputs) into each I/O chassis slot. For example: – Module group 1 = inputs 00 through 17 – Module group 2 = inputs 00 through 17 (module group 2 represents the second set of inputs). Terminals 1 through 20 represent module group 1, with terminals 9, 10, 19 and 20 ac low (L2). Terminals 21 through 40 represent module group 2, with terminals 29, 30, 39 and 40 ac low (L2). Connection Diagram for the 1771–IAN ac Input Module Note: Terminals on the left are even numbered (2 thru 40) , and terminals on the right ac High are odd numbered (1 thru 39). Input 01 2 Input 03 4 6 Input 05 Input 07 Common 0 (L2) Module group 1 = inputs 00 through 17 Module group 2 = inputs 00 through 17 (module group 2 represents the second set of inputs.) Terminals 1 through 20 represent module group 1,with terminals 9, 10, 19 and 20 ac low (L2). Terminals 21 through 40 represent module group 2, with terminals 29, 30, 39 and 40 ac low (L2). 8 10 Input 11 12 Input 13 14 Input 15 16 Input 17 Common 1 (L2) 18 Input 01 22 24 Input 03 Input 05 Input 07 20 26 Common 2 (L2) 28 30 Input 11 32 Input 13 Input 15 34 Input 17 Common 3 (L2) 36 38 40 Input 00 Input 02 Input 04 Input 06 Common 0 (L2) Input 10 Input 12 Input 14 Input 16 Common 1 (L2) Input 00 Input 02 Input 04 Input 06 Common 2 (L2) Input 10 Input 12 Input 14 Input 16 common 3 (L2) ac Low (Actual wiring runs in this direction.) If multiple power supplies are used, do not exceed the specified isolation voltage. Publication 1771-IN032B-EN-P - July 2002 11854-I 9 AC (120V) Input Module Table A Module Input Terminal Assignments Terminal Number Input Assignment I/O program address Terminal Number Input Assignment I/O program address 01 Input 00 1RG00 21 Input 00 1RG00 02 Input 01 1RG01 22 Input 01 1RG01 03 Input 02 1RG02 23 Input 02 1RG02 04 Input 03 1RG03 24 Input 03 1RG03 05 Input 04 1RG04 25 Input 04 1RG04 06 Input 05 1RG05 26 Input 05 1RG05 07 Input 06 1RG06 27 Input 06 1RG06 08 Input 07 1RG07 28 Input 07 1RG07 09 Common 0 (L2)1 - 29 Common 3 (L2)1 - 10 Common 0 (L2)1 - 30 Common 3 (L2)1 - 11 Input 10 1RG10 31 Not used 1RG10 12 Input 11 1RG11 32 Input 11 1RG11 13 Input 12 1RG12 33 Input 12 1RG12 14 Input 13 1RG13 34 Input 13 1RG13 15 Input 14 1RG14 35 Input 14 1RG14 16 Input 15 1RG15 36 Input 15 1RG15 17 Input 16 1RG16 37 Input 16 1RG16 18 Input 17 1RG17 38 Input 17 1RG17 19 Common 1 (L2)1 - 39 Common 4 (L2)1 - 20 Common 1 (L2)1 - 40 Common 4 (L2)1 - Where: 1 R = rack number (1, 2, 3, etc.) G = I/O group (0 - 7) You can connect a different power supply to each common (0,1,2 and 3). Terminals 09/10 are common for terminals 01 thru 08; 19/20 for 11 thru 18; 29/30 for 21 thru 28; 39/40 for 31 thru 38. If multiple power supplies are used, do not exceed the specified isolation voltage. Publication 1771-IN032B-EN-P - July 2002 10 AC (120V) Input Module The module has 32 status indicators on the module front plate. These represent the control status of the inputs. Each indicator is lit when voltage is present at the corresponding input. Interpreting the Status Indicators 00 10 01 11 02 12 03 13 04 14 05 15 06 16 07 17 00 10 01 11 02 12 03 13 04 14 05 15 06 16 07 17 Status Indicators (red) 11855-I The following information applies when operating this equipment in hazardous locations: Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, and D Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest T" number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation. WARNING ! EXPLOSION HAZARD - • • • • Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous. Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product. Substitution of components may impair suitability for Class I, Division 2. If this product contains batteries, they must only be changed in an area known to be nonhazardous. Informations sur l'utilisation de cet équipement en environnements dangereux: Les produits marqués CL I, DIV 2, GP A, B, C, D ne conviennent que une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un systéme, le code de température le plus défavorable (code de température le plus faible) peut eatre utilisé pour déterminer le code de température global du systéme. Les combinaisons d'equipements dans le systéme sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation. AVERTISSEMENT ! RISQUE D'EXPLOSION - • • • • Publication 1771-IN032B-EN-P - July 2002 Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher l'équipement. Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit. La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe 1, Division 2. S'assurer que l'environnement est classé non dangereux avant de changer les piles. AC (120V) Input Module Specifications Inputs per module 32 (4 groups of 8) Module Location 1771-A1B thru -A4B I/O Chassis Voltage Range 85 to 135V ac, 50/60Hz Nominal Input Voltage 120V ac Nominal Input Current 8.2mA @ 115V ac, 60Hz 6.8mA @ 115V ac, 50Hz Minimum On-state Current 5.2mA @ 85V ac, 60Hz 4.2mA @ 85V ac, 50Hz Maximum Off-state Current 2.3mA @ 30V ac, 60Hz 1.9mA @ 30V ac, 50Hz Maximum Off-state Voltage 30V ac Input Impedance 0.2uF in parallel with 200K ohms (13.3K ohms @ 60Hz) Input Signal Delay Off to On: 10.0ms (+7ms) On to Off: 20.0ms (+15ms) Isolation Voltage Tested to withstand 1000V for 60s. Power Dissipation 4.5W (max); 1.0W (min) Thermal Dissipation 15.4 BTU/hr (max); 3.4 BTU/hr (min) Backplane Current 280mA @ 5V dc maximum Conductors 14-22 AWG (2.5-0.25mm2) (max)1 stranded copper rated at 60o or greater 3/64 inch (1.2mm) insulation (max) 21 Wire Size Category 11 Environmental Conditions Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold) IEC 60068-2-2 (Test Bd, Operating Dry Heat) IEC 60068-2-14 (Test Nb, Operating Thermal Shock) 32 to 140°F (0o to 60oC) Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged, Nonoperating Cold) IEC 60068-2-2 (Test Bb, Unpackaged, Nonoperating Dry Heat) IEC 60068-2-14 (Test Na, Unpackaged, Nonoperating Thermal Shock) -40 to 185°F (-40 to 85oC) Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged, Nonoperating Damp Heat) 5 to 95%, noncondensing Shock Operating Nonoperating IEC 60068-2-27 (Test Ea, Unpackaged Shock) 30g 50g Vibration IEC 60068-2-6 (Test Fc, Operating) 2g @ 10-500Hz ESD Immunity IEC 61000-4-2 4kV indirect discharges Radiated RF Immunity IEC 61000-4-3 10V/m, with 1kHz sine-wave 80% AM from 30MHz to 1000MHz EFT/B Immunity IEC 61000-4-4 +1kV @ 5kHz on signal ports Surge Transient Immunity IEC 61000-4-5 +1kV line-line (DM) and +2kV line-earth (CM) on signal ports Conducted RF Immunity IEC 61000-4-6 10V rms with 1kHz sine wave 80% AM from 150kHz to 30MHz Publication 1771-IN032B-EN-P - July 2002 12 AC (120V) Input Module Emissions CISPR 11 Group 1, Class A (with appropriate enclosure) Enclosure Type Rating None (open-style) Keying Between 16 and 18 Between 20 and 22 Field Wiring Arm 1771ĆWN Wiring Arm Screw Torque 9 pound-inches (1.0Nm) Certifications (when product is marked) UL UL Listed Industrial Control Equipment CSA CSA CSA Certified Process Control Equipment CSA Certified Process Control Equipment for Class I, Division 2 Group A, B, C, D Hazardous Locations CE3 European Union 89/336/EEC EMC Directive, compliant with: EN 61000-6-4, Industrial Emissions EN 50082-2, Industrial Immunity EN 61236, Meas./Control/Lab., Industrial Requirements EN 61000-6-2, Industrial Immunity European Union 73/736/EEC EMC Directive, compliant with: EN 61131-2, Programmable Controllers C-Tick3 Australian Radiocommunications Act, compliant with: AS/NZS 2064, Industrial Emissions 1 14 gauge wire connected to all terminals may not allow the cover on the field wiring arm to close. A smaller gauge wire may be used. 2 You use this conductor category information for planning conductor routing as described in publication 1770Ć4.1, Industrial Automation Wiring and Grounding Guidelines. 3 See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates and other certification details Publication 1771-IN032B-EN-P - July 2002 Supersedes Publication 1771-5.32 - October 1995 Publication 1771-IN032B-EN-P - July 2002 PN957678-76 Copyright 2002 Rockwell Automatiion, Inc. Printed in USA ">

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Key features
- 32 Inputs
- 120V AC
- Modular design
- Input filtering
- Status indicators
Frequently asked questions
The maximum input voltage for the Allen-Bradley 120V Input Module is 135V AC.
This module supports 32 inputs, grouped in sets of 8.
Input filtering on the Allen-Bradley 120V Input Module helps reduce the effects of voltage spikes and noise, improving system stability.
The status indicators on the module front plate visually indicate the active state of the inputs, aiding in system diagnostics.
The Allen-Bradley 120V Input Module is an 'open-type' device, so it needs to be installed within a suitable enclosure designed for the specific environmental conditions present.