Allen-Bradley 1756-DMF30 Drive Module | Replacement, Equivalent & Selection Guide
The Allen-Bradley 1756-DMF30 is a ControlLogix-platform Drive Module designed for coordinated motion and drive integration in demanding industrial automation environments. This page provides full technical specifications, compatible replacement options, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Part Number: 1756-DMF30
- Series: ControlLogix 1756
- Module Type: Drive Module (DMF)
- Backplane Current Draw: Refer to Rockwell Automation product documentation for exact values
- Communication: ControlLogix backplane (integrated)
- Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F)
- Storage Temperature: -40 °C to 85 °C
- Relative Humidity: 5–95% non-condensing
- Certifications: UL, CE (verify current listing with Rockwell Automation)
- Form Factor: Single-slot ControlLogix chassis module
Compatible Replacement & Equivalent Models
When the 1756-DMF30 is discontinued, obsolete, or on extended lead time, the following models are commonly evaluated as replacements or equivalents. Always verify firmware compatibility and system architecture before substitution.
- 1756-DMF30 (New / Surplus): Direct drop-in — preferred option when available
- 1756-DMF30K (Conformal Coated): Functionally equivalent; suitable for harsh/humid environments
- 1756-M02AE / 1756-M03SE: Alternative motion modules within the ControlLogix family — evaluate axis count and interface requirements
- PowerFlex 755 with DriveLogix: Integrated drive-controller solution for new designs replacing standalone DMF architecture
- Third-party ControlLogix-compatible drive interfaces: Consult system integrator for validated alternatives
Note: Konmask.com supplies both new and tested surplus 1756-DMF30 units. Contact us to confirm current stock and lead time.
Why Choose the Original Model
- Proven Reliability: Field-validated in thousands of ControlLogix installations worldwide
- Native Backplane Integration: Seamless communication with Logix controllers — no gateway or protocol conversion required
- Rockwell Studio 5000 Support: Full configuration and diagnostics via native software toolchain
- Minimized Validation Risk: Using the original part number avoids re-validation costs in regulated industries (automotive, food & beverage, pharma)
- Spare Parts Ecosystem: Broad availability of accessories, cables, and documentation
Typical Applications
- Coordinated multi-axis drive control in manufacturing lines
- Conveyor and material handling systems with variable-speed drives
- Packaging machinery requiring synchronized motion profiles
- Pump and fan control in process industries (oil & gas, water treatment)
- Crane and hoist drive management
- Retrofit and modernization of legacy drive systems to ControlLogix architecture
System Compatibility
- Controller Platform: ControlLogix 1756 series (L6x, L7x, L8x controllers)
- Chassis: Any 1756 chassis (4, 7, 10, 13, 17-slot)
- Power Supply: 1756-Pxx series (verify backplane current budget)
- Software: RSLogix 5000 / Studio 5000 Logix Designer
- Firmware: Confirm compatible firmware revision with Rockwell Automation TechConnect or your distributor
- Network: EtherNet/IP, ControlNet, DeviceNet (via appropriate bridge/scanner modules)
Selection Guide
Use the following criteria to confirm the 1756-DMF30 is the right choice — or to identify the best alternative:
- Step 1 — Confirm Platform: Is your controller a ControlLogix 1756 series? If yes, the DMF30 is chassis-compatible.
- Step 2 — Verify Axis Requirements: Determine the number of drive axes to be coordinated. The DMF30 supports specific axis counts — check the product bulletin for your revision.
- Step 3 — Check Backplane Budget: Sum all module current draws against your 1756 power supply rating.
- Step 4 — Assess Environment: Standard environment → 1756-DMF30; harsh/humid → consider 1756-DMF30K (conformal coated).
- Step 5 — New vs. Retrofit: For new designs, evaluate whether integrated drive solutions (e.g., PowerFlex 755 with DriveLogix) offer a more cost-effective architecture.
- Step 6 — Firmware Alignment: Confirm the module firmware is compatible with your existing controller firmware revision before ordering.
Quality Assurance & Sourcing
- Source: Konmask.com sources 1756-DMF30 units from authorized channels and verified surplus inventories
- Inspection: All surplus units undergo visual inspection and functional verification prior to shipment
- Traceability: Documentation available upon request (test reports, photos, serial number records)
- Warranty: Contact us for current warranty terms on new and surplus stock
- Counterfeit Prevention: We do not source from unverified grey-market channels — buyer protection is a core commitment
How to Order
- Confirm part number: 1756-DMF30 (or specify revision if required)
- Indicate quantity and required delivery timeline
- Request a quote via support@konmask.com or call +0086 19859288691
- Receive quotation with lead time, unit price, and shipping options
- Confirm purchase order — we accept T/T, PayPal, and other B2B payment methods
- Shipment with tracking provided within agreed lead time
Replacement & Compatibility FAQ
Q: Is the 1756-DMF30 still in production?
A: Rockwell Automation periodically updates product lifecycle status. Contact us or check the Rockwell Product Lifecycle page for the latest status. We maintain surplus stock for end-of-life support.
Q: Can I use a 1756-DMF30 in any 1756 chassis?
A: Yes, it is mechanically compatible with all standard 1756 chassis. Always verify backplane power budget and firmware compatibility.
Q: What is the difference between 1756-DMF30 and 1756-DMF30K?
A: The “K” suffix denotes conformal coating for enhanced protection against moisture, dust, and corrosive atmospheres. Functionally identical otherwise.
Q: Do you provide a test report for surplus units?
A: Yes. Test documentation and serial number records are available upon request for all surplus units.
Q: Can Konmask.com source specific firmware revisions?
A: We will do our best to match your firmware revision requirement. Please specify when requesting a quote.
Q: What is the lead time for in-stock units?
A: In-stock units typically ship within 1–3 business days. Contact us for current availability.
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Contact: support@konmask.com | +0086 19859288691
