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        DDI01

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        ABB DDI01 is a 32-channel 24 V DC current-sinking input module with four isolated signal groups for Freelance rack I/O.
        In Stock
        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.
        Shipping Mode
        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 DDI01

        • Manufacturer:
          ABB
        • Part Number:
          DDI01
        • Product Family:
          ABB H&B Freelance 2000
        • Product Type:
          32-channel digital input module
        • Stock:
          1
        • Input channels:
          32
        • Input type:
          IEC 61131-2 Type 1 current-sinking
        • Rated input voltage:
          24 V DC
        • Rated input current:
          8 mA
        • Input impedance:
          Approximately 3 kΩ
        • Isolation:
          Four optically isolated groups of eight inputs
        • Self-scan cycle:
          2 ms minimum
        • Configurable input delay:
          2 ms
        • Input filter:
          400 µs maximum
        • Status indication:
          LEDs on the I/O side
        • Protection:
          Reverse-polarity protected
        • Rack power consumption:
          1.8 W
        • External fuse:
          1 A time-lag
        • Maximum field cable:
          1000 m
        • Hot replacement:
          Permitted
        • Dimensions:
          4 × 18.5 × 30.8 cm
        • Weight:
          1.7 kg
        • Tariff Code:
          8538900000
        • Country of origin:
          Sweden
        • 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 Grouping Scan and Filtering Cabinet Integration Application
        • Thirty-two inputs for 24 V DC binary field states
        • Four isolated groups preserve separate field references
        • Module scanning and filtering condition incoming signals

        DDI01 collects discrete process states and transfers them through the documented Freelance rack backplane and system cable.

        Its grouped isolation allows separate field references while local indicators help relate terminal activity to the controller image.

        Reconcile sensor type, group commons, fuse, cable assignment and project channel map before enabling interlocks or sequences.

        Availability, condition, price, and shipping time for DDI01 are confirmed during quotation.

        ABB DDI01 32-channel digital 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.

        • Field inputs are organized into isolated groups with separate electrical references.
        • Group-common wiring must follow the cabinet drawing and approved terminal assignment.
        • Channel mapping connects each terminal position to the corresponding controller signal.
        • The module conditions incoming transitions before they enter the process image.
        • Filtering and delay choices must suit the pulse duration and noise environment.
        • Interlock testing should confirm that the configured timing preserves the intended event.
        • The system cable links the input card to its assigned backplane connection.
        • Field supply protection and cable routing influence reliable signal detection.
        • Commissioning compares device operation, channel indication and controller status for every group.
        • Limit-switch and contact-state acquisition
        • Digital alarm and interlock inputs
        • Discrete sensor monitoring in Freelance rack systems
        Description
        DDI01 is the ABB Freelance rack interface used to acquire thirty-two 24 V DC binary field states from switches, contacts and electronic sensors.

        The inputs are divided into isolated groups and scanned by the module processor, with configurable delay, channel indication and protected field wiring for cabinet integration.

        Before reconnection, verify the current-sinking input convention, group commons, field supply, system cable, filtering requirement and the exact rack channel assignment.
        Alternative Names
        DDI01 DDI 01 ABB DDI01 ABB DDI 01 0369626 P3711-4-0369626
        Technical notes
        DDI01 requires confirmation of 24 V DC current-sinking sensors, four isolated group commons, channel mapping, input delay, fuse and system cable before replacement to prevent false interlock states.
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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
        Which field-signal convention must be matched when selecting ABB DDI01?
        The module uses 24 V DC current-sinking inputs. Confirm sensor output type, field-supply polarity and common wiring rather than relying only on the channel count.
        How are field commons arranged on ABB DDI01?
        The inputs are divided into four isolated groups. Preserve each group common and do not merge isolated circuits unless the approved cabinet drawing explicitly does so.
        Can ABB DDI01 capture very short field pulses?
        The module uses a documented scan, filter and configurable delay. Compare the expected pulse width with those timing elements before assigning a fast event to the card.
        What should be checked if ABB DDI01 shows unstable input states?
        Inspect field voltage, common continuity, sensor leakage, shielding, cable routing, fuse condition and the configured input delay before suspecting the module.
        Can ABB DDI01 be replaced while the rack remains energized?
        ABB permits module exchange, but field circuits must be placed in a safe state and the channel, backplane and cable assignment must be recorded before removal.
        Why must all four input groups of ABB DDI01 be tested after rewiring?
        Each isolated group has its own field reference. A correct state in one group does not confirm supply, common or cable continuity in the remaining groups.
        How should ABB DDI01 be accepted after replacement?
        Force or safely operate representative devices in every isolated group, verify LED and controller state agreement, and confirm alarms or interlocks use the intended channels.

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