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          Apter Power can quote IC655ALG516 and supply its official manufacturer document to support range selection, conversion timing, and retrofit checks.

        IC655ALG516

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        General Electric IC655ALG516 is an 8-Channel Analog Input Module that brings multiple field measurement ranges into a Series Five PLC.
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        Ships by Wednesday, October 28
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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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        Technical specifications for IC655ALG516

        • Manufacturer:
          General Electric
        • Part Number:
          IC655ALG516
        • Product Family:
          GE Intelligent Platforms
        • Product Type:
          8-Channel Analog Input Module
        • Stock:
          1
        • Number of Channels:
          8
        • Conversion Resolution:
          12 bit
        • Input Ranges:
          1 to 5 VDC; 0 to 10 VDC; -10 to +10 VDC; 4 to 20 mA
        • Voltage Wiring:
          Single-ended or differential
        • Current Input Resistance:
          250 Ω
        • Voltage Input Impedance:
          1 MΩ
        • Absolute Maximum Input:
          ±15 VDC
        • Linearity:
          ±0.05%
        • Temperature Coefficient:
          ±50 ppm/°C
        • Total Error at 25°C:
          ±0.4%
        • Selectable Conversion Time:
          10 ms or 100 ms
        • Channel Update:
          Conversion time plus channel sequence and PLC scan
        • Noise Rejection:
          -6 dB at 100 Hz; -60 dB at 50 Hz in 100 ms mode
        • Common-Mode Rejection:
          60 dB below 100 Hz
        • I/O Allocation:
          32 input references
        • Internal 5 VDC Consumption:
          250 mA maximum
        • External Supply:
          24 VDC ±10%; 150 mA
        • Terminal Assembly:
          Removable 38-terminal block
        • 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 Input Selection Conversion Timing Signal Integrity Diagnostics

        Features:

        • Eight analog channels support voltage and 4–20 mA process signals.
        • Selectable single-ended, differential, and current wiring adapts the module to varied transmitters.
        • Two conversion rates let commissioning balance update speed and noise rejection.
        The module digitizes each selected channel at 12-bit resolution and presents the result to the Series Five CPU through its assigned input references. Hardware setup and software scaling must be treated as one configuration.

        The 10 ms and 100 ms conversion choices have different rejection characteristics. Choose the mode with the actual interference environment and required process response in mind.

        External 24 VDC is necessary for analog operation. A diagnostic indication helps separate loss of that supply or terminal-block connection from a real process-value change.

        For sourcing, pricing, and access to official documents for General Electric IC655ALG516 8-Channel Analog Input Module, consult Apter Power.
        GE Fanuc IC655ALG516 8-Channel Analog 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 hardware setup to the field signal

        • Voltage ranges: Choose the documented unipolar or bipolar window for the transmitter.
        • Current mode: Use the 4–20 mA selection with the intended current path.
        • Wiring method: Select single-ended or differential voltage connection deliberately.
        • Scaling: Make the PLC engineering conversion agree with the physical range.

        Balancing response and line-noise rejection

        • Fast mode: The 10 ms conversion shortens individual channel acquisition.
        • Filtered mode: The 100 ms choice improves rejection around 50 Hz.
        • Full response: Add channel sequencing and PLC scan time to conversion time.
        • Process fit: Choose the setting from the dynamics of the measured variable.

        Reducing misleading analog readings

        • Shielding: Use twisted shielded cable and terminate shields consistently.
        • Routing: Separate low-level analog conductors from switching power wiring.
        • Reference paths: Confirm returns and common-mode conditions for the selected wiring.
        • Terminal condition: Reseat and inspect the removable 38-point assembly when values jump.

        Separating module, supply, and process faults

        • DIAG indication: Loss of external power or terminal connection can trigger the alarm.
        • Supply test: Measure 24 VDC at the module under operating load.
        • Known signal: Apply a controlled source within the configured input range.
        • Channel comparison: Compare raw counts before changing application scaling.
        Description
        General Electric IC655ALG516 is a Series Five 8-Channel Analog Input Module that converts supported voltage or current signals into 12-bit values for the PLC. One card can accept several common process-signal ranges without assigning a different module type to every transmitter standard.

        Single-ended voltage, differential voltage, and current wiring are supported by IC655ALG516, but the chosen range, channel setup, terminal connections, and PLC allocation must describe the same signal. A mismatch can produce a believable number that does not represent the actual process value.

        Two selectable conversion settings let IC655ALG516 balance acquisition speed against line-frequency rejection. The 100 ms setting provides the stronger 50 Hz rejection, whereas the 10 ms selection shortens conversion time; the effective update seen by the application also includes channel sequencing and the PLC scan.

        Loss of the external 24 VDC supply or disconnection of the removable terminal assembly produces a diagnostic indication on IC655ALG516. Together with the 38-terminal block and the specified twisted-shielded wiring practice, that behavior makes supply status, shield termination, grounding, and connector seating the key checks before recalibration is considered.
        Alternative Names
        IC655-ALG516 IC655ALG-516 IC 655 ALG 516 GE Fanuc IC655ALG516 General Electric IC655ALG516 GE Fanuc Series Five IC655ALG516 IC655ALG516 8-Channel Analog Input Module 1C655ALG516
        Technical notes
        Before calibrating IC655ALG516, verify the selected range, channel mode, terminal seating, external 24 VDC supply, and shield connection.
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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 IC655ALG516 show a stable but incorrect process value?
        While restoring IC655ALG516, check the voltage/current range switch, single-ended or differential wiring, 250 Ω current path, and software scaling; a mismatched configuration can still produce a believable number.
        What should be checked when the IC655ALG516 diagnostic indicator is active?
        During IC655ALG516 startup checks, verify the external 24 VDC source and confirm that the removable terminal assembly is fully seated before investigating the transmitter or PLC program.
        How should conversion time be selected on IC655ALG516?
        In the IC655ALG516 signal path, use the 100 ms setting when 50 Hz rejection is important and the 10 ms setting when faster updates are required, then include scan and channel sequencing in the response expectation.
        Why does one IC655ALG516 channel become noisy after cabinet work?
        At the IC655ALG516 rack position, inspect shield continuity, grounding practice, terminal torque, cable routing near power conductors, and differential return wiring before applying software filtering.
        Can IC655ALG516 accept a 4–20 mA transmitter directly?
        During a controlled IC655ALG516 test, yes when the channel is configured for current input and wired through the documented 250 Ω path; confirm the transmitter loop supply and polarity separately.
        What prevents reliable comparison between two IC655ALG516 channels?
        When reviewing IC655ALG516 compatibility, ensure both channels use the same range, wiring mode, conversion setting, scaling, and grounding reference before comparing their engineering values.
        How can a technician avoid damaging IC655ALG516 during signal tests?
        At the IC655ALG516 output stage, keep applied voltage within the absolute limit, avoid forcing current into a voltage-configured channel, and remove field power before moving range or wiring connections.

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