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        • Lifecycle status

          Active / Available from OEM
          For IC655ALG566 sourcing, loop-interface review, and verified manufacturer documentation, contact Apter Power before replacing or recommissioning the module.

        IC655ALG566

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The General Electric IC655ALG566 2-Channel Analog Output Module supplies independent voltage or current commands from a Series Five controller.
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        Ships by Thursday, October 29
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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
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for IC655ALG566

        • Manufacturer:
          General Electric
        • Part Number:
          IC655ALG566
        • Product Family:
          GE Intelligent Platforms
        • Product Type:
          2-Channel Analog Output Module
        • Stock:
          1
        • Number of Channels:
          2 independent outputs
        • Output Modes:
          0 to 10 VDC or 4 to 20 mA
        • Conversion Resolution:
          12 bit
        • Conversion Time:
          0.1 ms
        • Voltage Output Impedance:
          0.5 Ω maximum
        • Current Output Capability:
          20 mA
        • Current-Loop Load:
          5 to 550 Ω
        • Linearity:
          ±0.05%
        • Temperature Coefficient:
          ±50 ppm/°C
        • Total Error at 25°C:
          ±0.4%
        • Channel Display:
          12-bit value display per channel
        • Logic Isolation:
          Optically isolated user side
        • I/O Allocation:
          32 output references
        • Internal 5 VDC Consumption:
          150 mA maximum
        • External Supply:
          24 VDC ±10%; 200 mA
        • Configuration Hardware:
          No range switches or jumpers
        • Terminal Assembly:
          Removable terminal block
        • Diagnostic Conditions:
          External power loss or terminal disconnection
        • 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 Output Modes Loop Compliance Commissioning Fault Isolation

        Features:

        • Two independent channels provide either 0–10 VDC or 4–20 mA outputs.
        • Twelve-bit conversion supports controlled analog commands from the Series Five CPU.
        • Isolation and diagnostic indication aid separation of logic, supply, and field faults.
        No range jumper is needed; the assigned data and terminal wiring determine the intended output use. Commissioning should document whether each channel drives a voltage input or current loop.

        The current output must see a total load within the documented resistance window. Excess loop resistance can prevent the commanded current from being reached even when PLC data is correct.

        External 24 VDC loss or a disconnected terminal assembly can disable analog delivery. Check these hardware conditions before rewriting the control calculation.

        Apter Power offers quotation support and official-manual access for the General Electric IC655ALG566 2-Channel Analog Output Module.
        GE Fanuc IC655ALG566 2-Channel Analog Output 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.

        Choosing voltage or current delivery

        • Voltage command: Use the 0–10 VDC path for compatible high-impedance receivers.
        • Current loop: Use 4–20 mA for the documented loop resistance window.
        • Independent channels: Configure and prove each output separately.
        • Terminal choice: Wire the receiver to the terminals for the selected signal type.

        Why a current output may saturate

        • Load resistance: Total loop resistance must remain within the supported range.
        • Supply condition: External 24 VDC must be present under operating load.
        • Polarity: Check the direction of current through the receiving device.
        • Field measurement: Compare measured current with the PLC command before recalibration.

        Proving the complete analog command path

        • Safe state: Place the controlled process in a condition that permits manual testing.
        • Test points: Command low, mid, and high values for each channel.
        • Two-end check: Measure at both the module and the receiver.
        • Scaling record: Document raw counts and engineering-unit behavior.

        Separating power, terminal, and load issues

        • Diagnostic lamp: Use the module indication as an initial hardware clue.
        • Terminal seating: Confirm the removable assembly is fully engaged.
        • External power: Measure 24 VDC at the output module.
        • Receiver check: Inspect the field device range and input integrity.
        Description
        The General Electric IC655ALG566 is a Series Five 2-Channel Analog Output Module that converts PLC data into independent 0–10 VDC or 4–20 mA commands. Each channel can be applied to a compatible receiver without requiring both outputs to use the same field load.

        Voltage and current operation impose different receiving-circuit conditions on IC655ALG566. Correct terminals, return wiring, and loop resistance have to agree with the selected mode, so one channel can be commissioned independently and its measured signal compared with the written PLC value.

        Optical isolation separates the logic interface of IC655ALG566 from its user side, whose analog circuitry is supplied by an external 24 VDC source. The front display reports channel data, and a diagnostic indication distinguishes loss of field-side power or a disconnected terminal assembly from an incorrect output command.

        Conversion inside IC655ALG566 takes approximately 0.1 ms. If a command remains slow, limited, or saturated after the PLC word changes, the investigation should continue through mode selection, wiring, and the response of the connected actuator or recorder instead of attributing the delay to digital conversion alone.
        Alternative Names
        IC655-ALG566 IC655ALG-566 IC 655 ALG 566 GE Fanuc IC655ALG566 General Electric IC655ALG566 GE Fanuc Series Five IC655ALG566 IC655ALG566 2-Channel Analog Output Module 1C655ALG566
        Technical notes
        For IC655ALG566 loop checks, confirm the channel mode and external 24 VDC source before measuring voltage or current at the field device.
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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
        Why does IC655ALG566 fail to reach 20 mA even though the PLC command is at full scale?
        Across the IC655ALG566 installation, measure total loop resistance and supply voltage, then inspect the current-output terminals; a load outside the 5–550 Ω range can force the channel out of compliance.
        What should be checked when IC655ALG566 voltage output remains near zero?
        When isolating an IC655ALG566 fault, confirm that the channel is wired to the voltage terminals, the external 24 VDC supply is present, the terminal block is seated, and the PLC word is assigned to the correct channel.
        Can one IC655ALG566 channel use voltage while the other uses current?
        During an IC655ALG566 wiring check, yes, the channels are independent; document each mode and wire its load to the appropriate terminals so service personnel do not apply one channel test to both.
        Why may IC655ALG566 data look correct while the actuator does not move?
        At the IC655ALG566 interface, trace the signal after the module: measure the actual voltage or loop current, verify receiver range and polarity, and check for field-device limits or interlocks.
        How should IC655ALG566 be tested after replacement?
        When assessing IC655ALG566 operation, with the process in a safe state, command several known values, measure the corresponding output at the module and receiver, and confirm scaling at both ends before enabling automatic control.
        What does the IC655ALG566 diagnostic indication help isolate?
        Within the IC655ALG566 rack environment, it identifies conditions such as missing external 24 VDC or a disconnected terminal assembly, allowing those causes to be resolved before treating the analog channel as defective.
        How can ground-loop problems be reduced with IC655ALG566?
        During IC655ALG566 recovery work, keep signal returns and shields consistent with the manual, avoid unintended multiple ground points, and verify the receiving device input reference during cabinet changes.

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