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          Active / Available from OEM
          An IC693ALG221 quotation and its manufacturer-issued analog-input information are available from Apter Power.

        IC693ALG221

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        IC693ALG221 is a GE Fanuc Series 90-30 four-channel analog current input module for 0–20 mA or 4–20 mA signals.
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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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        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 IC693ALG221

        • Manufacturer:
          General Electric
        • Part Number:
          IC693ALG221
        • Product Family:
          GE 90-30 Series PLC
        • Product Type:
          Series 90-30 4-channel analog current input module
        • Stock:
          1
        • Input channels:
          4
        • Input ranges:
          4 to 20 mA or 0 to 20 mA
        • Conversion scale:
          4 µA per count, factory calibrated
        • All-channel update:
          2 ms
        • Resolution:
          4 µA at 4–20 mA; 5 µA at 0–20 mA
        • Absolute accuracy:
          0.1% full scale plus 0.1% of reading
        • Input impedance:
          250 Ω
        • Input filter:
          325 Hz
        • Common-mode voltage:
          200 V
        • Common-mode rejection:
          Greater than 70 dB
        • Cross-channel rejection:
          Greater than 80 dB, DC to 1 kHz
        • Linearity:
          Less than 1 LSB
        • Isolation:
          1,500 V
        • Power requirement:
          100 mA isolated 24 VDC plus 25 mA at 5 VDC
        • 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 Signal Ranges Wiring Protection Applications

        Features:

        • Four analog current inputs for 0–20 mA or 4–20 mA loops
        • Approximately 2 ms update time for all channels
        • 12-bit conversion with optical separation from backplane logic
        IC693ALG221 is the compact four-loop current-measurement option for Series 90-30 systems.

        Range selection is physical and applies to channel pairs, which makes jumper records important during module exchange.

        The controller receives refreshed measurement words while the external loop circuits provide the process current.

        The General Electric IC693ALG221 Series 90-30 4-channel analog current input module may remain available for quotation and installed-system support from Apter Power.
        General Electric IC693ALG221 Series 90-30 4-channel analog current input module Manuals, Datasheets, LinksImportant 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.

        Current-loop conversion

        • Selectable spans: Jumpers choose 0–20 mA or 4–20 mA operation.
        • Paired settings: Two channels share each range-selection arrangement.
        • Resolution: Input current is represented with 12-bit conversion.
        • Update cycle: The module refreshes all four measurements in about 2 ms.

        Loop and shield practice

        • Cable type: Twisted shielded conductors reduce interference on the analog inputs.
        • Loop source: The field transmitter or loop supply provides the measured current.
        • Shield termination: A consistent single-point shield strategy helps avoid ground-loop noise.
        • Polarity: Each current-loop connection follows the marked input polarity.

        Isolation and common mode

        • Optical barrier: Field inputs are optically separated from Series 90-30 logic.
        • Common-mode tolerance: Protection is provided for common-mode voltage up to 200 V under reduced-performance conditions.
        • System grounding: Excessive potential difference should be corrected rather than treated as normal measurement practice.
        • Fault tracing: A full-scale or zero reading is checked against loop power, polarity, range jumpers, and wiring continuity.

        Supported measurements

        • Pressure transmitters: Four-wire or loop-powered pressure signals can be acquired in the selected current range.
        • Flow monitoring: Industrial flow transmitters supply stable 4–20 mA values to the PLC.
        • Level control: Tank and vessel level loops can be processed with other Series 90-30 logic.
        • Temperature conversion: Current-output temperature transmitters can occupy any of the four channels.
        Description
        IC693ALG221 is a four-channel analog current input module that converts field loops into digital values for a Series 90-30 application. Channel pairs are selected by jumpers for either 0–20 mA or 4–20 mA operation.

        For projects that use IC693ALG221, all four channels are updated in approximately 2 ms and reported with 12-bit resolution. Optical isolation separates the field-input electronics from the logic backplane, while common-mode protection helps the module tolerate substantial potential differences under the stated reduced-performance conditions.

        In a control system built around IC693ALG221, the module can be installed in a compatible I/O position and is wired with twisted, shielded cable for low-noise measurements. Loop-source arrangement and shield termination should remain consistent with the original instrument circuit.
        Revisions

        Revision Part #

        Also known as

        IC693ALG221B
        IC693ALG221-B, Series B, Rev B
        Get Parts Quote
        IC693ALG221C
        IC693ALG221-C, Series C, Rev C
        Get Parts Quote
        IC693ALG221D
        IC693ALG221-D, Series D, Rev D
        Get Parts Quote
        IC693ALG221E
        IC693ALG221-E, Series E, Rev E
        Get Parts Quote
        IC693ALG221F
        IC693ALG221-F, Series F, Rev F
        Get Parts Quote
        IC693ALG221G
        IC693ALG221-G, Series G, Rev G
        Get Parts Quote
        Alternative Names
        IC 693 ALG221 IC693-ALG221 GE IC693ALG221 GE Fanuc IC693ALG221 Series 90-30 IC693ALG221 ALG221 IC693 ALG221 1C693ALG221
        Technical notes
        IC693ALG221 range jumpers are paired across channels; replacing the module without reproducing both jumper selections can rescale otherwise healthy current loops.
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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
        How is the input range selected on IC693ALG221?
        The current-input module uses hardware jumpers to select 0–20 mA or 4–20 mA operation for each channel pair.
        Why can two IC693ALG221 channels show the wrong scale after replacement?
        Its groups range selection by pairs, so one misplaced jumper can affect both associated channels.
        How quickly does IC693ALG221 update its inputs?
        The installed current-input module refreshes all four analog-current channels in approximately 2 ms.
        What cable is appropriate for IC693ALG221 loops?
        Its analog circuits should use twisted shielded cable with a controlled shield-termination arrangement.
        Does IC693ALG221 power a two-wire transmitter?
        The selected current-input module measures loop current; a suitable external loop supply is still required for the transmitter circuit.
        What should be checked when IC693ALG221 reads zero?
        Its troubleshooting should cover loop power, input polarity, open wiring, jumper range, and transmitter output.
        How is IC693ALG221 separated from PLC logic?
        The analog module uses optical isolation between its field-input circuitry and the Series 90-30 backplane electronics.

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