Overview
The Allen-Bradley 1756-M16SE is a chassis-based SERCOS interface module designed for high-speed, real-time motion control within ControlLogix automation systems. This 16-axis servo module uses fiber-optic communication to eliminate traditional wiring noise and provides deterministic synchronization for multi-axis applications. Compatible with a range of Rockwell Automation Kinetix servo drives, the 1756-M16SE integrates seamlessly into existing 1756 ControlLogix platforms.
Key Features
- 16-Axis Capacity: Supports up to 16 servo drives per module; up to 32 axes per ControlLogix controller with dual modules.
- Dual Data Rate Support: Operates at both 4 Mbps and 8 Mbps SERCOS data rates for flexible cycle time tuning.
- Fiber-Optic Interface: Single fiber-optic link eliminates EMI and noise, improving motion control reliability and accuracy.
- Multi-Control Mode: Supports position, velocity, and torque control modes.
- Universal Chassis Integration: Mounts in any slot of compatible 1756 ControlLogix chassis with single slot width.
- Verified Drive Compatibility: Works with Kinetix 2000 (2093), Kinetix 6000 (2094), Kinetix 7000 (2099), and Ultra3000 (2098) SERCOS servo drives.
Technical Specifications
- Module Type: SERCOS Interface, 1 slot width, chassis-based
- Max Axes per Module: 16 servo drives
- SERCOS Data Rates: 4 Mbps, 8 Mbps
- Cycle Time @ 4 Mbps: 0.5 ms (2 drives), 1 ms (4 drives), 2 ms (8 drives)
- Cycle Time @ 8 Mbps: 0.5 ms (4 drives), 1 ms (8 drives), 2 ms (16 drives)
- Control Modes: Position, velocity, torque
- Power Dissipation: 5.0 W
- Current Draw @ 5.1V DC: 760 mA
- Current Draw @ 24V DC: 2.5 mA
- Operating Temperature: 0°C to 60°C
- Voltage: 24 VDC (backplane), 5.1 VDC (internal)
- Certifications: UL, CE, CUL, KC, RCM, UKCA
- Weight: 0.77 lb (350g)
- Connector Type: Screw terminal (fiber-optic interface)
Typical Applications
The 1756-M16SE is widely deployed in:
- Multi-axis CNC and machining centers requiring synchronized servo control
- Packaging and material handling systems with coordinated motion
- Automotive assembly lines using precision positioning
- Food processing equipment with real-time axis coordination
- Printing and converting machinery with high-speed register control
- Robotic systems requiring distributed servo drive management
Compatibility & Replacements
The 1756-M16SE is compatible with all standard ControlLogix chassis models: 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17. It works with standard and redundant power supplies including 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, and 1756-PH75/B. For smaller multi-axis applications, the 1756-M03SE (3-axis) and 1756-M08SE (8-axis) offer reduced capacity alternatives. The module integrates with Studio 5000 Logix Designer for programming and motion analysis through Motion Analyzer software. Fiber-optic cables (plastic or glass core) connect to supported Kinetix and Ultra3000 servo drives.
