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        6DD1641-0AC0

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The 6DD1641-0AC0 is a Siemens SIMADYN D input/output module (EB11) with 32 binary I/O channels, thermal overload protection, two 40-pin connectors, and LED reset keys.
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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 6DD1641-0AC0

        • Manufacturer:
          Siemens
        • Part Number:
          6DD1641-0AC0
        • Product Family:
          Siemens Simadyn
        • Product Type:
          EB11 Input/Output Module
        • System Compatibility:
          Siemens SIMADYN D
        • Binary I/O Channels:
          32 total (16 inputs, 16 outputs)
        • Connectors:
          2 × 40-pin (X5, X6)
        • I/O per Connector:
          8 inputs + 8 outputs
        • Output Protection:
          Electronic thermal overload (short-circuit protection)
        • Reset Methods:
          CPU background program or LED key press
        • LED Keys:
          S1 (X5), S2 (X6)
        • Bus Connection:
          L-bus
        • Key Benefit:
          Solves binary output protection with thermal overload shutdown, visual fault indication via LED keys, and dual reset options for fast recovery.
        • Weight:
          0.5 kg
        • Estimated shipping dimensions:
          2x26.1x26.1cm
        • Tariff Code:
          8517795000
        • Country of origin:
          Germany
        • 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 Specifications Application Operating Environment Control Implementation

        Features:

        • 32 binary I/O channels with 8 inputs and 8 outputs per connector across two 40-pin connectors.
        • Electronic thermal overload protection on binary outputs with automatic shutdown and LED fault indication.
        • Dual reset options: CPU background program or illuminated LED key press.
        The 6DD1641-0AC0 packs 32 binary I/O channels into a single module, making it ideal for applications where cabinet space is limited. Each of the two 40-pin connectors (X5 and X6) provides 8 inputs and 8 outputs. This high density reduces the number of modules needed for large I/O counts, simplifying system architecture and reducing cost. The L-bus connection ensures fast communication with the SIMADYN D CPU. For drive control systems, power generation plants, and heavy industrial automation, this module provides the I/O capacity needed for binary sensors and actuators.

        Binary outputs on the 6DD1641-0AC0 are protected by electronic thermal overload circuitry. If a short circuit or excessive current occurs, the affected output shuts down immediately, switching to an open-circuit condition. This prevents damage to the module's output stages and protects connected field devices such as contactors, solenoids, and indicator lamps. The associated LED key illuminates to indicate which connector has a fault. Unlike fuse-based protection, there is no need to replace fuses—the module resets electronically after the fault is cleared.

        After a thermal overload, the 6DD1641-0AC0 requires a reset to restore output operation. Two reset methods are available. First, the CPU module's background program can automatically reset the output using the configured binary output function block. For normal CPU loading, this takes several seconds after the output has cooled down. Second, maintenance personnel can manually reset by pressing the illuminated LED key (S1 for connector X5, S2 for connector X6). This manual option is useful during commissioning or when the CPU is heavily loaded, allowing technicians to restore operation without reprogramming.

        The 6DD1641-0AC0 Siemens I/O Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

        Siemens 6DD1641-0AC0 I/O Module Manuals, Datasheets, Drivers, Link 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.
        Siemens 6DD1641-0AC0 I/O Module Specs

        General

        • Manufacturer Siemens
        • Model 6DD1641-0AC0
        • Condition New Original ready stock
        • Product Family 6DD1641-0AB0,6DD1641-0AD0,6DD1640-0AC0
        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.
        • Metal Rolling Systems: Used for high-precision synchronous control of tension and speed in cold/hot rolling mills and wire rod mills in steel mills.
        • High-Performance Power-to-Electronic Converters: Used for pulse transmission and signal processing in large DC drives, excitation systems, or static var compensators (SVCs).
        • Complex Machine Tools and Printing Equipment: Processes rapidly changing digital signals in applications requiring multi-axis high-speed synchronous operation.
        • Paper and Textile Machinery: Controls tension and transmission synchronization in high-speed production lines.
        • Rack Requirements: Must be installed in a dedicated 19-inch rack from SIMADYN D (such as the SR series) and communicate with the CPU via a 64-bit backplane bus.
        • Operating Temperature: Typically designed to operate in environments from 0°C to +55°C (forced air cooling).
        • Protection Rating: The module itself does not have an independent protective enclosure and must be installed in a control cabinet with an appropriate IP protection rating (such as IP54) to prevent dust and moisture.
        • Signal Voltage: Typical 24V DC industrial standard level.
        • Programming Environment: STRUC G or D7-SYS graphical configuration tools are used. Developers connect digital input/output signals directly to the control algorithm blocks.
        • Communication and Integration: Module status can be uploaded to the HMI or a higher-level monitoring system (such as WinCC) via PROFIBUS DP or MPI protocols through the CP module (such as CP50M0).
        • Data Updates: Due to sharing the baseboard bus with the CPU module, signal latency is extremely low, ensuring the real-time nature of the control loop.
        Description
        The 6DD1641-0AC0 is an EB11 input/output module for the Siemens SIMADYN D system, providing 32 binary input and output channels. It features two 40-pin connectors (X5 and X6), each handling 8 binary inputs and 8 binary outputs. The module connects via the L-bus to the CPU. 

        The 6DD1641-0AC0 includes two LED keys (S1 for connector X5, S2 for connector X6) that illuminate when an overload occurs. After the output cools down, the associated electronics must be reset to restore operation. Reset can be performed either through the CPU module's background program (using the binary output function block) or by pressing the illuminated LED key. 

        The 6DD1641-0AC0 is designed for industrial automation applications requiring reliable binary I/O with short-circuit protection. The thermal overload protection prevents damage to the module and connected field devices. The LED keys provide visual indication of faults and a manual reset option. 

        This I/O module solves the pain point of protecting binary outputs from damage due to overloads or short circuits. The 6DD1641-0AC0’s thermal protection automatically shuts down affected channels, while the LED keys provide clear fault indication and a simple reset method.
        Alternative Names
        6DD1641-0AB0 6DD1641-0AD0 6DD1640-0AC0 6DD1640-0AB0
        Technical notes
        The 6DD1641-0AC0 is an EB11 input/output module by Siemens for the SIMADYN D drive and automation system. The module is available through the SIMADYN D product family and it features 32 binary input and output channels. The module provides two 40-pin connectors (X5 and X6), each handling 8 binary inputs and 8 binary outputs.
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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 many I/O channels does the 6DD1641-0AC0 provide?
        32 binary I/O channels total, split as 8 inputs and 8 outputs per connector across two 40-pin connectors.
        What happens when an output on the 6DD1641-0AC0 is overloaded?
        The output shuts down electronically (open-circuit condition) and the associated LED key illuminates. After cooling, a reset restores operation.
        How do I reset an overloaded output on the 6DD1641-0AC0?
        Two ways: via the CPU background program using the binary output function block, or by pressing the illuminated LED key (S1 for X5, S2 for X6).
        What is the purpose of the LED keys on the 6DD1641-0AC0?
        They indicate thermal overload conditions and provide a manual reset button for restoring output operation after fault clearance.

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