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Allen Bradley 1756-DMD30 Drive Module and Fiber Optic Interface in Single-Slot Design
Allen Bradley 1756-DMD30 Drive Module and Fiber Optic Interface in Single-Slot Design
6.96 Watts Peak Power Dissipation Drive Module
Fiber Optic Interface ControlLogix Module
Single-Slot Design 1756-DMD30
Place of Origin:
USA
Brand Name:
Allen Bradley
Model Number:
1756-DMD30
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Product Details
Product Model:
1756-DMD30
Country Of Origin:
USA
Estimated Shipping Size:
3.6x15.2x14.5cm
Weight:
0.25 Kg
Peak Power Dissipation:
6.96 Watts
Thermal Dissipation:
23.7 BTU Per Hour
Operating Temperature:
32 To 140 Degrees Fahrenheit
Storage Temperature:
-40 To 185 Degrees Fahrenheit
Highlight:
6.96 Watts Peak Power Dissipation Drive Module
,Fiber Optic Interface ControlLogix Module
,Single-Slot Design 1756-DMD30
Payment & Shipping Terms
Minimum Order Quantity
1
Price
66USD
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in stock
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Product Description
The 1756-DMD30 Allen-Bradley ControlLogix drive module is a single-slot industrial ControlLogix module that enables device interfacing with the Reliance Electric Distributed Power System (DPS) equipment. Each 1756-DMD30 module interfaces with an individual Power Module Interface (PMI) chassis and performs outer torque, position, and velocity control.
The module works with the SD3000 6 Pulse DPS equipment system, including the S6 DC drive and S6R resolver, as well as with the SD3000 12-Pulse equipment system, which includes the S12 DC drive and S12R resolver.
The 1756-DMD30 module is installed inside a ControlLogix chassis and communicates with SynchLink nodes through a fiber optic network. It also connects to the PMI chassis through fiber optic cables. The module occupies a single slot and operates on DC power supplied by the ControlLogix chassis.
Technical Specifications
| Current Consumption (24V DC) | 3 milliamps |
| Current Consumption (5.1V DC) | 1.35 Amps |
| Peak Module Power Dissipation | 6.96 Watts |
| Thermal Dissipation | 23.7 BTU per hour |
Field Application Insights
Asset Life Extension Strategy
The 1756-DMD30 allows you to maintain your robust Reliance Electric DPS power hardware while upgrading to modern ControlLogix control technology. This approach provides the benefits of Logix tags and Studio 5000 programming without the capital expense of complete drive and motor replacement.
Distributed Processing Architecture
As an intelligent module, the DMD30 offloads outer torque, position, and velocity control loops from the main controller. This ensures deterministic drive response regardless of PLC program complexity.
EMI Protection & Signal Integrity
Fiber optic connections between the DMD30 and Power Module Interface create electrical isolation, eliminating ground loop issues and signal corruption in high-power 6-pulse or 12-pulse drive environments.
System Configuration Flexibility
The module is hardware-agnostic regarding pulse configuration, supporting both SD3000 6-Pulse (S6/S6R) and 12-Pulse (S12/S12R) systems through firmware and configuration management.
Power Management Considerations
When deploying multiple DMD30 modules in a single chassis, rigorous power dissipation calculations are essential to ensure thermal limits are not exceeded.
Thermal Management Requirements
Active airflow within the enclosure is critical for high-density installations to prevent optical component degradation and communication loss faults.
Multi-Axis Synchronization
SynchLink fiber network integration ensures precise velocity command execution across multiple DMD30 modules within micro-millisecond timing windows.
Installation Best Practices
Proper slot selection with adequate fiber optic cable bend radius clearance prevents micro-fractures and ensures long-term reliability.
Key Features & Capabilities
- Control Architecture: Implements velocity, position, and outer torque control comparable to the PowerFlex® 700S control platform
- Motor Control: Functionality emulates Reliance Electric Distributed Power System (DPS) drives for seamless system compatibility
- Communication Interface: Fiber optic connection to the Power Module Interface (PMI) chassis
- Synchronization Technology: Integrated SynchLink™ for high-performance synchronization and deterministic data transfer
- Engineering Tools: Fully supported by RSLogix 5000™ and DriveExecutive™ within the DriveTools 2000™ software suite
- Diagnostic Capabilities: Advanced configuration, programming, monitoring, and troubleshooting
- Operational Flexibility: Supports Removal and Insertion Under Power (RIUP) to reduce downtime
- Compliance & Certification: Rated for Class I, Division 2 hazardous locations with UL, CSA, and CE certifications
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