Product Introduction
When multi-axis motion control demands both precision and cost efficiency, the Allen-Bradley 1768-M04SE SERCOS Interface Module delivers a proven solution. This 1768-M04SE module integrates up to four Kinetix drives directly into the CompactLogix architecture, eliminating the need for separate motion controllers and reducing overall system cost per axis. Part of the Rockwell Automation CompactLogix family, the 1768-M04SE enables synchronized motion across multiple axes with high-speed fiber-optic communication.
Technical Specifications
The Allen-Bradley 1768-M04SE offers robust performance parameters, all verified from the manufacturer data:
| Parameter |
Value |
| Power Dissipation |
5.04 W |
| Supported No. of Drives |
Up to Four (4) drives |
| Connections Consumed |
Three (3) |
| SERCOS Class |
Class B (Position or Velocity) |
| SERCOS Data Rate |
4 M or 8 M |
| Bus Current Draw @ 5.2 VDC |
969 mA |
| Backplane Current |
1.4 Amps at 24 Volts |
| Power Consumption |
33.6 Watts |
| Slot Width |
Single slot |
| Module Location |
Din Rail or Panel Mount |
| Shipping Weight |
2 lbs. |
| Isolation Voltage |
30 Volts Continuous |
Industry Applications
The 1768-M04SE excels in packaging, material handling, and assembly applications where precise coordination of multiple servo axes is essential. For example, in a high-speed labelling machine, the 1768-M04SE synchronizes four Kinetix 6000 drives at 8 Mbps with a 0.5 ms cycle time, ensuring accurate label placement without mechanical cams. This reduces setup time and maintenance costs compared to traditional mechanical solutions.
Installation & Setup Guidance
Mount the Allen-Bradley 1768-M04SE on a DIN rail or panel within the same enclosure as the 1768-L43 or 1768-L45 Controller. Use the F-SMA fiber-optic connectors with plastic or glass cables (core diameters: plastic 980 μm ± 60 μm, glass 200 μm ± 4 μm). Ensure the fiber bend radius does not exceed 25 mm for plastic cables (standard jacket) or 30 mm for glass. The single-slot module draws 969 mA at 5.2 VDC from the backplane; verify your power supply capacity.
Compatibility & Integration
The 1768-M04SE integrates seamlessly with Kinetix 2000, 6000, 7000, and Ultra 3000 SERCOS servo drives. It consumes three connections and supports up to four drives with position or velocity control. Use one module per 1768-L43 controller or up to two modules with the 1768-L45. Compatible fiber-optic cable assemblies include plastic (2090-SCEPxx-0, 2090-SCNPxx-0) and glass (2090-SCVGxx-0) types.
Selection Guide & Purchasing Advice
Before purchasing, confirm your controller model (1768-L43 or 1768-L45) and the number of axes needed. The 1768-M04SE supports up to four drives; for eight axes, order two modules with a 1768-L45. Choose the correct SERCOS data rate (4 M or 8 M) based on your cycle time requirements—8 Mbps offers 0.5 ms updates with four drives. For reliable supply, trust UBEST Automation (ubest101) for genuine Rockwell Automation spares.