Product Summary
The 1768-M04SE is a powerful SERCOS interface module for CompactLogix controllers. It integrates high-speed motion control for up to four Kinetix drives. This module reduces system cost per axis. It supports both position and velocity control modes. Engineers use it for synchronized multi-axis applications.
Product Procurement & Buyer Guide
Solving Key Motion Control Challenges
The Allen-Bradley 1768-M04SE solves complex synchronization issues. It provides a deterministic fiber-optic network for drives. This eliminates the need for a dedicated motion controller. You gain lower total system cost. The module works with 1768-L43 and 1768-L45 processors. This ensures seamless integration into existing architectures.
Matching Your Application Requirements
This interface module supports data rates of 4 Mbps and 8 Mbps. It achieves an update time of 0.5 ms for two drives. For four drives at 8 Mbps, the cycle time stays at 0.5 ms. This performance is critical for high-speed packaging or printing lines. You must select the correct fiber-optic cable. Use plastic cables for general environments. Choose glass cables for higher temperatures.
Ensuring Technical Compatibility
The 1768-M04SE is compatible with Kinetix 2000, 6000, and 7000 drives. It also works with Ultra 3000 SERCOS servo drives. It consumes three SERCOS connections. The module draws 969 mA from the 5.2 VDC backplane. It draws 0 mA from the 24 VDC supply. Verify your backplane power budget before installation. This module fits a single slot.
Step-by-Step User & Installation Guide
Mechanical Mounting and Slot Location
Mount the 1768-M04SE on a DIN rail or a panel. Its dimensions are 132 mm x 57 mm x 105 mm. The module weight is 0.2 kilograms. Install it in a single slot next to your controller. Use the 1768-L43 for up to one instance. Use the 1768-L45 for up to two instances. This layout maximizes your axis count.
Fiber Optic Wiring and Connection
Use F-SMA standard screw-type connectors for the fiber. Select cables based on your environment. Plastic cables handle temperatures from -55 to 85 °C. Glass cables work from -20 to 85 °C. The bend radius varies by jacket type. A standard jacket allows a 25 mm bend radius. A nylon jacket requires a 40 mm radius. You must maintain these values for signal integrity.
Electrical Configuration and Power
The module’s power dissipation is 5.04 W. It consumes 33.6 Watts total. The backplane current at 24 volts is 1.4 Amps. The isolation voltage is 30 Volts continuous. This open enclosure design requires clean power. Ensure your power supply can handle the load. The module uses electronic keying for safe insertion.
Setting Data Rate and Control Mode
Configure the 1768-M04SE for 4 Mbps or 8 Mbps. Select position or velocity control mode. For two drives at 4 Mbps, achieve a 0.5 ms cycle time. For four drives at 8 Mbps, you also get 0.5 ms. This flexibility lets you balance speed and axis count. Set these parameters in your Logix controller software.
Verification and System Testing
After installation, verify the fiber link integrity. Check the module status indicators. Confirm communication with each Kinetix drive. Run a basic motion profile to test position control. Monitor the update time to ensure it meets your specification. This process validates a reliable installation. Your system will now handle synchronized motion.
Logistics & Standard Packaging Details
