Analog Input Module - Rockwell Automation

1 Publication 1771 - July 1997 Analog Input Module (Catalog Number 1771-IFE/C)Use this document as a guide when installing the 1771-IFE/C analoginput pagePrevent Electrostatic DischargeBelowUnderstand Compliance to European Union Directives2 Understand Product Compatibility2 Calculate Power Requirements3 Determine Module Placement3 Set the A/B Simulation Jumper3 Set the configuration Jumpers4 Key the Backplane Connector4 Install the Module and Field Wiring Arm5 Connect Wiring to the Field Wiring Arm6 Ground the Chassis and Module9 Configure the Module10 For this reference informationSee pageStatus Indicators12 Troubleshooting13 Specifications13 CSA Hazardous Approval15 Differences Between Series A, B and C Modules16 The Analog Input Module is sensitive to electrostatic discharge.!ATTENTION: Electrostatic discharge can damageintegrated circuits or semiconductors if you touchbackplane connector pins.

2 Follow these guidelineswhen you handle the Module : Touch a grounded object to discharge static potential Wear an approved wrist-strap grounding device Do not touch the backplane connector orconnector pins Do not touch circuit components inside the Module If available, use a static-safe work station When not in use, keep the Module in itsstatic-shield boxThis icon is used whenadditional information is available in the AnalogInput Module User Manual,publication 1771 you need a copy of thismanual, fax the enclosedUser Manual Request Cardto 1 800 576 6340. If youare outside the , fax thecard to1 330 723 InstructionsContentsPrevent ElectrostaticDischarge Analog Input Module2 Publication 1771 - July 1997If this product has the CE mark it is approved for installation withinthe European Union and EEA regions.

3 It has been designed andtested to meet the following DirectiveThis product is tested to meet Council Directive 89/336/EECE lectromagnetic Compatibility (EMC) and the following standards,in whole or in part, documented in a technical construction file: EN 50081-2 EMC Generic Emission Standard, Part 2 Industrial Environment EN 50082-2 EMC Generic Immunity Standard, Part 2 Industrial EnvironmentThis product is intended for use in an industrial Voltage DirectiveThis product is tested to meet Council Directive 73/23/EECLow Voltage, by applying the safety requirements of EN 61131 2 Programmable Controllers, Part 2 Equipment Requirements specific information required by EN 61131-2, see the appropriatesections in this publication, as well as these Allen-Bradleypublications:PublicationPub lication numberIndustrial Automation Wiring and Grounding Guidelines For Noise Immunity1770 for Handling Lithium BatteriesAG Systems CatalogB111 The 1771-IFE Module can be used with any 1771 I/O and data table use is listed of Data TableCompatibilityCatalogNumberInputImag eOutputImageReadBlockWriteBlockAddressin gChassisSiNumberImageBitsImageBitsBlockW ordsBlockWords1/2 Slot1 Slot2 SlotChassisSeries1771 IFE882239 YYYA, BA = Compatible with 1771 A1, A2, A4B = Compatible with 1771 A1B, A2B, A3B, A3B1, A4BY = Compatible without not use this Module with cat.

4 No. 1771-AL PLC-2/20 or 2/30 Local Compliance toEuropean Union DirectivesUnderstand ProductCompatibility Analog Input Module3 Publication 1771 - July 1997 The Module receives its power through the 1771 I/O power supplyand requires 500mA from the this current to the requirements of all other modules in the I/Ochassis to prevent overloading the chassis backplane and/orbackplane power your Module in any I/O Module slot of the I/O chassis exceptfor the extreme left slot. This slot is reserved for PC processors oradapter modules.!ATTENTION: Do not insert or remove modules fromthe I/O chassis while system power is ON. Failure toobserve this rule could result in damage to your modules to minimize adverse affects from radiatedelectrical noise and heat. We recommend the following. Group Analog Input and low voltage dc modules away from acmodules or high voltage dc modules to minimize electrical noiseinterference.

5 Do not place this Module in the same I/O group with a discretehigh-density I/O Module when using 2-slot addressing. Thismodule uses a byte in both the Input and output image tables forblock Module is shipped with the A/B simulation jumper set inposition POS G for Series C applications. This setting returns inputdata above and below the range end points. If you are replacing aSeries A or B 1771-IFE Module with this Module , reset thesimulation jumper to the POS E position as shown GPOS ESimulation Jumper (shown in A/B position)Top edge of circuit the simulation jumper at the top edge of the Module circuit your fingers, slide the jumper off the 2 position the jumper on 2 of the 3 posts that correspond to your the Series A/B Simulation JumperA/B Simulation JumperPOS GPOS ESimulation Jumper (shown in series C position)Top edge of circuit boardSeries A and BSimulationSeries C ApplicationCalculate PowerRequirementsDetermine ModulePlacement in the I/OChassisSet the A/B SimulationJumper Analog Input Module4 Publication 1771 - July 1997 The Module has configuration jumpers for determining the Input type(voltage or current)

6 Desired for each Input . The Module is shippedwith the configuration jumpers positioned for voltage mode andthe A/B simulation jumper set for Series C. If you are replacing aSeries A or B 1771-IFE Module with this Module , reset thesimulation jumper as shown can select either voltage or current for each Input , but all inputsmust be either single-ended or differential. Do not mix single-endedand differential inputs on the the configuration jumpers associated with each inputchannel according to your requirements12 You can mix voltage mode and current mode settings onthe Module . Make sure that the entire Module is set foreither single ended or differential. Do not mix 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel1 and 2 Channel3 and 4 Channel5 and 6 Channel7 and 8 Channel9 and 10 Channel11 and 12 Channel13 and 14 Channel15 and 16 DifferentialSingle endedVoltage ModeDifferentialCurrentSingle ended CurrentDifferential or Single ended (factory set)Current ModeOdd channel currentEven channel voltageEven channel currentOdd channel voltageSingle endedConfigurationJumpersRemove the four screws securing the side cover tothe Module and remove the the cover and secure with the fourscrews removed in step the keying bands in the backplane connectorsto correspond to the key slots on the the keying bands.

7 Between 10 and 12between 24 and 26 You can change the position of these bands ifsubsequent system design and rewiring makesinsertion of a different type of Module Connector11022 II/O chassisPlace your Module in any slot in the chassisexcept the leftmost slot which is reserved forprocessors or the Backplane Connector4 Set the ConfigurationJumpers and Key theBackplane Connector Analog Input Module5 Publication 1771 - July 1997!ATTENTION: Remove power from the 1771 I/Ochassis backplane and field wiring arm beforeremoving or installing an I/O Module . Failure to remove power from the backplane orwiring arm could cause Module damage, degradationof performance, or injury. Failure to remove power from the backplane couldcause injury or equipment damage due to possibleunexpected the Module in the card guides on the top and bottom of the chassis that guide the Module into : Apply firm even pressure on the Module to seat it into its backplane the chassis latch over thetop of the Module to secure the chassis locking bardown into place to secure themodules.

8 Make sure the lockingpins A1B, A2B, A3B1, A4B Series B I/O chassis1771 A1B, A2B, A3B, A3B1, A4B I/O chassis17643wiring arminstallremovehorizontal barAttach the wiring arm (1771 WG) to the horizontalbar at the bottom of the I/O wiring arm pivots upward and connects withthe Module so you can install or remove themodule without disconnecting the WG2 Install the Module andField Wiring Arm Analog Input Module6 Publication 1771 - July 1997 Connect your I/O devices to the cat. no. 1771-WG wiring armshipped with the Module .!ATTENTION: Remove power from the 1771 I/Ochassis backplane and field wiring arm beforeremoving or installing an I/O Module . Failure to remove power from the backplane orwiring arm could cause Module damage, degradationof performance, or injury. Failure to remove power from the backplane couldcause injury or equipment damage due to possibleunexpected connections for the 1771-IFE Module with: single-ended inputs are shown on page 7 differential inputs are shown on page 8 Minimizing Ground LoopsTo minimize ground-loop currents on Input circuits: use single-ended mode whenever possible use 2-wire transmitters with a common power supply separate 2-wire and 4-wire transmitters between differentmodules tie 4-wire transmitter and/or separate power supply groundstogetherImportant:We do not recommend mixing 2-wire and 4-wiretransmitter inputs on the same Module .

9 Power supplyplacement can make it impossible to eliminate LengthsRecommended maximum cable length for voltage-mode inputdevices is 50 feet. This recommendation is based on considerationsof signal degradation and electrical noise immunity in typicalindustrial environments. Cable length for current-mode inputdevices need not be as restrictive because Analog signals from thesedevices are less sensitive to electrical noise Wiring to theField Wiring Arm Analog Input Module7 Publication 1771 - July 1997- Jumper all unused channels to modulecommon to reduce GroundChannel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel 9 Channel 10 Channel 11 Channel 12 Channel 13 Channel 14 Channel 15 Channel 16 Module CommonModule CommonModule CommonModule CommonModule Common1771 WGField WiringArm1234567891011121314151617181920 21 Attention: Analog Input signals must be within + referencedto Module common.

10 This Input signal includes any common modevoltage present between either Input terminal and Module an Input terminal exceeds this range, channel to channelcrosstalk can cause invalid Input readings and invalid underrangeor overrange 1771 IFE Module does not supply loop power for the Input user must supply loop power for loop powered Input devices.+ The sensor cable must be shielded. The shield must: extend the length of the cable, but be connected only at the 1771 I/O chassis extend up to the point of terminationImportant:The shield should extend to the termination point, exposing just enough cable toadequately terminate the inner conductors. Use heat shrink or another suitableinsulation where the wire exits the cable +_- Tie power supply grounds together tominimize ground : Refer to transmitter manufacturers specifications for power supply WireTransmitterPowerSupplyNOTE:- All Module commons are electrical ly tied together inside the WireTransmitterConnection Diagram for 16 Single ended Inputs and Two Wire Transmitters- Jumper all unused channels to modulecommon to reduce GroundChannel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel 9 Channel 10 Channel 11 Channel 12 Channel 13 Channel 14 Channel 15 Channel 16 Module CommonModule CommonModule CommonModule CommonModule Common1771 WGField WiringArm1234567891011121314151617181920 21 Attention.