The 6DD2920-0AN1 designated as the EPIS22 peripheral unit, is a hardware assembly for the SIMADYN D control system platform. This module functions within the industrial rack infrastructure, where it interfaces with field instrumentation, feedback sensors, and power conversion sub-assemblies. The physical construction consists of a dual-board layout containing the EP22 computing section and the IS1 signal sub-board, which work together to handle electrical inputs and outputs across a unified chassis connection.
Field Interface: IS1 Input/Output Extension Subboard
Firmware Host: MS41 Program Memory Module with Preloaded Software
The module slides into standard rack enclosures and locks into place via rear backplane connectors, which provide both low-voltage operational power and direct communication lines to neighboring system hardware. The front panel contains physical interface terminals for wiring connections, along with hardware-level indicators that show the current state of the electrical channels. It is applied in large-scale industrial drives, such as cycloconverter setups and heavy-duty rolling mill controls, where it translates incoming plant measurements into standardized internal variables for the rack system.
The electrical pathways inside the unit are configured to route separate analog and digital variables, distributing these electrical potentials without mechanical conversion parts or external cooling modifications. The unit incorporates dedicated shielding clamps on the front assembly to establish direct metal-to-metal contact with incoming field cables, grounding external electrical noise before it reaches the internal circuitry.
The connection scheme utilizes standardized terminal blocks that accept solid or stranded conductors, facilitating integration into existing plant wiring topologies. During operation within the subrack, the module shares data registers across the common parallel backplane bus, maintaining consistent update intervals with the main central processing units without requiring external network bridges.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Siemens 6DD2920-0AN1 Simadyn Signal Processors 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.
Steel Rolling Industry
Used in hot or cold rolling mills for high-speed flying shear control across multiple stands and precise closed-loop regulation of looper tension.
Pulp & Paper Industry
Maintains microsecond-level dynamic speed synchronization between dozens of paper web rollers in high-speed paper machine drive systems.
Mine Hoists & Extraction
Achieves four-quadrant closed-loop speed regulation, precise positioning, and safety braking control for heavy-duty motors in deep mine hoist systems.
Wire & Cable Manufacturing
Real-time adjusts tension variations across multi-stage drawing dies in high-speed wire drawing and take-up machine control systems to prevent wire breakage.
Rubber & Plastics Extrusion
Controls coordinated torque output of high-power motors and closed-loop sheet thickness in large twin-screw extruder and calender production lines.
Gas & Steam Turbine Control
Provides microsecond-level calculation of rotational speed and pressure transient response in hydraulic digital electro-hydraulic governors (DEH) for power plant main generator units.
Ensure that the rack grounding system and metal rails are properly bonded to prevent high-frequency electromagnetic interference from affecting signal processing accuracy. Never perform non-isolated hot-swapping on connected peripheral sensor or actuator wiring while powered on to protect I/O channels from transient surge damage. Regularly back up system parameters via the MS41 memory module, and closely monitor the operation of the rack cooling fans to prevent processor throttling or computational shutdowns caused by overheating.
It is a slot cover or dummy module assembly used in Siemens SIMATIC industrial control systems, such as TDC or related systems.
What is the primary purpose of 6DD2920-0AN1?
It is primarily used to fill vacant slots on the control rack to maintain the internal cooling airflow path and prevent dust ingress.
How to install and use 6DD2920-0AN1?
Align it directly with the free slot on the rack, push it in, and tighten the fixing screws at the top until it aligns flush with the adjacent active modules.
Does 6DD2920-0AN1 require any cable or power connections?
No, it is a purely mechanical protective component and does not feature any electrical connection terminals.
Which Siemens product family does 6DD2920-0AN1 belong to?
It belongs to the Siemens SIMATIC series, typically paired with racks of large-scale industrial automation or multi-processor control systems.
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