Features:
- Outer position, velocity, and torque control
- SynchLink fiber connection to a PMI chassis
- Support for SD3000 S6, S6R, S12, and S12R equipment
Allen-Bradley 1756-DMD30 coordinates a Logix owner controller with Reliance Electric Distributed Power System drive equipment.
The module closes the outer motion loop while the connected power module and Power Module Interface execute the inner drive functions.
Its selected communication format defines the controller tags exchanged across the ControlLogix backplane and SynchLink drive path.
The Allen-Bradley 1756-DMD30 ControlLogix Drive Module is listed as Active / Available from OEM. For 1756-DMD30 quotation planning, Apter Power can review the full catalog number and available manufacturer documentation.
Allen-Bradley 1756-DMD30 ControlLogix Drive 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.
Drive Control Functions
- Position control: The module can close the outer position loop using feedback from the connected drive system.
- Velocity control: Controller commands and drive feedback support a closed outer speed loop.
- Torque control: The module coordinates outer torque demand while inner power regulation remains in the DPS equipment.
- Owner controller: A Logix controller supplies command data and receives drive status through module-defined tags.
Fiber-Optic Drive Path
- Network role: SynchLink carries deterministic drive data between the ControlLogix module and PMI chassis.
- Fiber orientation: Transmit and receive connections must be crossed correctly between adjacent devices.
- PMI connection: Each drive-module application is associated with the appropriate Power Module Interface hardware.
- Diagnostic sequence: Check PMI power, both fiber ends, link indicators, and topology settings when communication is lost.
Controller Tag Structures
- Velocity format: Creates the data structure used for standard velocity-control applications.
- Position format: Adds the command and feedback data required by position-control applications.
- User-defined format: Allows an application-specific exchange structure within supported module limits.
- Configuration impact: Changing the selected format changes the module-defined tags used by controller logic.
Product Applications
- Distributed drive sections: Coordinates ControlLogix commands with supported SD3000 power and PMI hardware.
- Positioning machinery: Supports an outer position loop when the required feedback and Position communication format are configured.
- Speed-regulated processes: Exchanges velocity commands and drive status for coordinated web, line, or section control.
- Torque-managed loads: Provides the supervisory torque demand while inner current regulation remains in the connected drive equipment.