Product Summary
The Allen-Bradley 1768-M04SE module integrates precise motion control into CompactLogix systems. It manages up to four Kinetix servo drives with high-speed data exchange. This module reduces system costs by merging drive and motor intelligence into the automation architecture. It supports both position and velocity control modes.
Product Procurement & Buyer Guide
Selecting the Right SERCOS Interface
The 1768-M04SE module provides a critical link between your controller and drives. It uses 4 Mbps or 8 Mbps data rates for fast communication. This flexibility allows you to balance speed and axis count. For maximum performance, use the 8 Mbps rate to control four drives with a 0.5 ms update time. This setup ensures precise multi-axis synchronization.
Verifying System Compatibility
This module works with the 1768-L43 and 1768-L45 CompactLogix controllers. You can install one unit with the 1768-L43 processor. The 1768-L45 supports up to two modules for eight total axes. The interface consumes three SERCOS connections within the system. It requires a single slot on the backplane for installation.
Understanding Power and Mounting Needs
The module draws 969 mA at 5.2 VDC from the backplane. It does not consume any power at 24 VDC. You can mount the unit on a DIN rail or directly on a panel. Its compact dimensions are 132 mm by 57 mm by 105 mm. The total shipping weight is about 2 lbs.
Choosing the Correct Fiber Optic Cable
This interface uses fiber optic cables to connect to drives. It supports both plastic and glass cable types. Use plastic cables from the 2090-SCEPxx-0 or 2090-SCVPxx-0 series. Select glass cables with the catalog number 2090-SCVGxx-0 for longer runs. The connector is an F-SMA standard screw-type design.
Optimizing Performance for Your Application
The module supports position or velocity control modes. Use the 4 Mbps rate for a 0.5 ms cycle with two drives. For four drives at 4 Mbps, the cycle time increases to 1 ms. Switch to 8 Mbps to maintain a 0.5 ms cycle with all four drives. This flexibility lets you match the update speed to your motion requirements.
Deep-Dive Technical FAQ
Is the 1768-M04SE compatible with Ultra3000 drives?
Yes, this module works with Ultra3000 SERCOS servo drives. It also supports Kinetix 2000, 6000, and 7000 series drives. The interface uses a Class B SERCOS ring for communication. This compatibility allows you to mix drive types in one system.
What happens if I use plastic versus glass fiber cables?
Plastic cables have a core diameter of 980 µm. Glass cables use a smaller 200 µm core. Plastic cables operate from -55°C to 85°C. Glass cables have a range of -20°C to 85°C. The bend radius for plastic cables without a jacket is just 25 mm.
How does the module handle electronic keying?
The 1768-M04SE uses electronic keying for safe installation. This feature verifies the exact module type and series. It prevents accidental use of an incorrect replacement module. The system checks compatibility before operation begins.
What is the maximum power dissipation for this module?
The module dissipates 5.04 W of power during normal operation. It consumes 33.6 Watts of total power from the backplane. The enclosure rating is open, requiring a clean environment. The isolation voltage is 30 Volts continuous.
Can I use this module with a MicroLogix controller?
The 1768-M04SE is designed for CompactLogix systems only. It works specifically with 1768-L43 and 1768-L45 processors. It is not compatible with standard MicroLogix platforms.
Logistics & Standard Packaging Details
- One Allen-Bradley 1768-M04SE SERCOS interface module
- Quick start guide for initial setup
- Plastic dust caps for fiber optic connectors
- Mounting brackets for DIN rail installation
- We ship via FedEx, UPS, and DHL for express delivery.
