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          Apter Power can assist with pricing and sourcing options for IC655MDL511 when an individually isolated input spare is required.

        IC655MDL511

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        1001 reviews ｜ Need a Specific Revision?
        Individual commons distinguish IC655MDL511: its sixteen isolated positive-logic inputs accommodate 24–48 VAC or DC sources and use removable field terminals.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
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        Technical specifications for IC655MDL511

        • Manufacturer:
          General Electric
        • Part Number:
          IC655MDL511
        • Product Family:
          GE Intelligent Platforms
        • Product Type:
          24–48 VAC/DC Isolated Positive-Logic 16-Circuit Input Module
        • Stock:
          1
        • Product family:
          Series Five PLC
        • Input logic:
          Positive logic, AC or DC
        • Input points:
          16
        • Circuit isolation:
          Separate common for every input
        • Operating voltage:
          20–60 VAC or VDC
        • Input current:
          20 mA AC/DC
        • ON/OFF levels:
          20 V ON; 5 V OFF
        • Response time:
          5–30 ms ON; 10–50 ms OFF
        • Field connection:
          Removable terminal block
        • Internal current:
          80 mA typical; 100 mA maximum
        • Weight:
          1.54 lbs (0.7 kg)
        • Estimated shipping dimensions:
          3.8 × 25.4 × 12.7 cm
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals AC/DC Source Choice Isolation Limits Per-Point Status Individual Commons

        Features:

        • Sixteen positive-logic inputs accept either AC or DC field signals through individually isolated circuits.
        • Each input has its own common, allowing separate field-source references within one module.
        • Front indicators show point state and can display the configured starting I/O address.
        IC655MDL511 is appropriate when field signals cannot share bank commons: each channel retains its own reference, allowing different compatible AC or DC sources to remain separated.

        That independence changes fault isolation because a loss on one return should not remove neighboring inputs; several simultaneous failures instead point toward a wider source or rack issue.

        Before exchanging the electronics, label every input/common pair and record whether its source is AC or DC so the removable terminal assembly does not hide an incorrect reference during restart.

        General Electric IC655MDL511 24–48 VAC/DC Isolated Positive-Logic 16-Circuit Input Module may be available for purchase and support from Apter Power.
        General Electric IC655MDL511 24–48 VAC/DC Isolated Positive-Logic 16-Circuit Input Module Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Matching Isolated Inputs to AC or DC Sources

        • Voltage type: Identify whether each field circuit is AC or DC before assigning its conductors.
        • Logic direction: Confirm that positive-logic operation matches the connected switching device.
        • Independent reference: Use the common paired with the selected input rather than another channel's return.
        • Shared supply option: A suitable source may feed several circuits while their individual common connections remain separate.

        Managing Channel Loading Inside the Cabinet

        • Ambient profile: Evaluate rack air temperature across the complete machine duty cycle.
        • Energized population: Include the number of simultaneously active inputs when checking thermal margin.
        • Mixed conductors: Keep AC and DC circuits identified and routed according to the cabinet design.
        • Loaded-source check: Assess each external supply while its field device is operating, not only at no-load voltage.

        Separating Field Faults from Addressing Errors

        • Point indication: A lit channel LED shows that the corresponding isolated circuit has crossed the input threshold.
        • Missing signal: Measure across the input and its own common before investigating controller logic.
        • Range display: Compare the indicated starting address with the assigned Series Five input range.
        • State mismatch: When the rack LED and PLC table disagree, examine slot assignment and addressing next.

        Preserving Sixteen Input/Common Pairs

        • Pair marking: Label each signal conductor together with the common that belongs to it.
        • Source record: Note the AC or DC supply serving every circuit before disconnecting the assembly.
        • Mechanical keying: Retain the insert positions that prevent an incompatible terminal-block connection.
        • Sequential proving: Restore and test each isolated pair before enabling its associated machine function.
        Description
        General Electric IC655MDL511 is a Series Five isolated positive-logic input module with sixteen circuits for compatible 24–48 VAC or DC field signals. Every input has its own common, allowing individual source references to remain electrically separated.

        The per-channel common arrangement differs from grouped input modules and is useful where signals originate from unrelated voltages or machine sections. An open reference affects its associated channel instead of automatically removing a complete eight-point bank.

        Front indication provides point-state visibility and starting-address information, while the removable terminal assembly keeps each input/common pair together. Because AC and DC sources can both be used within the permitted class, conductor identification must preserve the actual source type of every isolated circuit.
        Alternative Names
        IC 655 MDL 511 IC655-MDL511 IC655MDL-511 IC655MDLS11 IC655MDL5II GE IC655MDL511 GE Fanuc IC655MDL511 Series Five IC655MDL511
        Technical notes
        Treat every IC655MDL511 input and common as a matched isolated pair. Isolate all external sources before terminal-block removal, retain AC/DC identification and keying, and prove each channel independently.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Can IC655MDL511 receive both AC and DC input signals?
        For IC655MDL511, yes. Each positive-logic circuit accepts a compatible 24–48 VAC or VDC source; verify the actual operating voltage and wiring for every channel.
        What makes the sixteen IC655MDL511 inputs individually isolated?
        When checking IC655MDL511, every input has a separate common connection rather than sharing one common across a bank. Each field circuit can therefore maintain its own source reference.
        How should an input/common pair be checked on IC655MDL511?
        On IC655MDL511, measure between the selected input and its matching common, then compare the result with the front indicator and configured PLC point. Do not use another channel’s common as the test reference.
        Can several IC655MDL511 channels share one field source?
        During IC655MDL511 troubleshooting, they may share a compatible source when the installation permits it, but the separate common conductors still have to be wired correctly for each input pair.
        What should be recorded before replacing IC655MDL511?
        With IC655MDL511 in service, document the slot, starting I/O address, voltage type, source identity, terminal number and common for all sixteen circuits, together with the terminal-block key positions.
        What does an IC655MDL511 LED confirm during troubleshooting?
        For an installed IC655MDL511, it confirms that the module has detected the field signal on that circuit. If the PLC state differs, continue with the starting address and controller mapping checks.
        How should mixed AC and DC circuits be recommissioned on IC655MDL511?
        Before returning IC655MDL511 to service, restore one source group at a time, keeping AC and DC conductors identified. Prove each input/common pair against the controller before enabling the connected machine function.

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