Allen-Bradley 1756-M03SE/A
Allen-Bradley 1756-M03SE/A
Allen-Bradley 1756-M03SE/A
Allen-Bradley 1756-M03SE/A
Allen-Bradley 1756-M03SE/A
Allen-Bradley 1756-M03SE/A
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1756-M03SE/A

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The 1756-M03SE/A is a ControlLogix Sercos interface module supporting up to 8 drives at 4 Mbps, 0.5-2 ms cycle times, position/velocity/torque control, and 760 mA backplane current draw.
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Technical specifications for 1756-M03SE/A

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-M03SE/A
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix Sercos Interface Module
  • Maximum Drives:
    8
  • Sercos Data Rates:
    4 Mbps, 8 Mbps
  • Cycle Time @ 4 Mbps:
    0.5 ms (2 drives), 1 ms (4 drives), 2 ms (8 drives)
  • Drive Control Modes:
    Position, velocity, torque
  • Backplane Current (5.1V):
    760 mA
  • Power Dissipation:
    5.0 W
  • Slot Width:
    1
  • Operating Temperature:
    0 to 60°C
  • Key Benefit:
    Solves high-speed synchronized motion control with deterministic Sercos communication—cycle times as low as 0.5 ms enable coordinated multi-axis motion for printing, packaging, and material handling.
  • Weight:
    0.22 kg
  • Estimated shipping dimensions:
    3.5x14x14.5cm
  • Tariff Code:
    8517795000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Communication Safety and Compliance

Features:

  • Sercos interface with selectable 4 Mbps or 8 Mbps data rates for high-speed deterministic communication.
  • Supports up to 8 drives with cycle times as low as 0.5 ms for coordinated multi-axis motion.
  • Position, velocity, and torque control modes with 760 mA backplane current draw and 5.0 W power dissipation.
The 1756-M03SE/A uses Sercos to synchronize up to 8 drives. At 4 Mbps, cycle times drop to 0.5 ms for two drives—fast enough for printing and packaging lines. At 8 Mbps, four drives run at 0.5 ms. No missed steps, no lag.

Position, velocity, or torque? The 1756-M03SE/A handles all three. Configure each drive independently. Use plastic fiber-optic cables for short runs or glass for longer distances. The module fits any ControlLogix slot.

Operates from 0 to 60°C, stores from -40 to 85°C. Conformal-coated versions (K suffix) handle moisture and corrosion. The T4A temperature code means safe operation in hazardous locations. The 1756-M03SE/A keeps running when others fail.

The 1756-M03SE/A Allen-Bradley Interface Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Allen-Bradley 1756-M03SE/A Interface Module Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1756-M03SE/A Interface Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1756-M03SE/A
  • Condition New Original ready stock
  • Product Family 1756-M03SEK/A,1756-M08SE/A,1756-M08SEK/A,1756-M16SE/A
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • High-speed packaging and material handling: Suitable for packaging machinery, bottling lines, and sorting systems requiring precise synchronization of multiple servo axes.
  • Precision positioning and cutting: Provides stable control in applications with extremely high synchronization requirements, such as CNC machining, flying shears, or rotary cutting.
  • Multi-axis synchronous control: Supports three control modes: position, velocity, and torque, suitable for complex robot collaboration or printing equipment.
  • SERCOS Interface: Adopts the SERCOS protocol of IEC 61491, connecting the servo driver via a single digital fiber optic loop.
  • Fiber Optic Connection: Uses ST interface fiber optic cables, effectively eliminating electrical noise interference and eliminating up to 18 traditional digital cables per axis.
  • Supported Drivers: Compatible with Kinetix 6000, Kinetix 7000, and Ultra3000 SERCOS servo drivers.
  • Communication Performance: Supports data transfer rates of 4 Mbps or 8 Mbps. When controlling two axes at 4 Mbps, the cycle time can be as fast as 0.5 ms.
  • Environmental Compliance: Complies with RoHS, CE directives, and Australian RCM standards.
  • Hazardous Environment Certification:UL Listed, suitable for Class I, Division 2 (Group A, B, C, D) hazardous areas.
  • ATEX Certified (e.g., II 3 G Ex ec IIC T4 Gc), allowing use in potentially explosive environments, but must be installed in a protective enclosure with an IP54 rating or higher.
  • Protective Design: Features photoelectric isolation protection, effectively isolating the channel from the back panel from electrical shocks, and withstands voltage tests up to 500V AC.
Description
The 1756-M03SE/A is a Sercos (Serial Real-time Communications System) interface module for Allen-Bradley ControlLogix platforms. It supports up to 8 drives with selectable Sercos data rates of 4 Mbps or 8 Mbps. Cycle times vary from 0.5 ms to 2 ms depending on the number of drives and data rate. 

This module requires a ControlLogix chassis (1756-A4 through -A17) and compatible power supplies. The 1756-M03SE/A draws 760 mA from the 5.1V backplane and 2.5 mA from 24V, with a power dissipation of 5.0 W. It uses plastic or glass fiber-optic cables for Sercos communication, with various jacket options including non-jacketed, PVC, and nylon. 

The 1756-M03SE/A operates in temperatures from 0 to 60°C and can be stored from -40 to 85°C. It meets IEC 61000-4-3 radiated RF immunity standards at 10V/m from 80-2000 MHz. The module is available in standard and conformal-coated versions (K suffix) for harsh environments. 

This module solves the pain point of high-speed synchronized motion control across multiple drives. The 1756-M03SE/A’s Sercos interface provides deterministic communication with cycle times as low as 0.5 ms, enabling coordinated multi-axis motion for printing, packaging, and material handling applications. 
Revisions

Revision Part #

Also known as

1756-M03SE Ser A
1756-M03SE/A, Series A, Rev A
Alternative Names
1756-M03SEK/A 1756-M08SE/A 1756-M08SEK/A 1756-M16SE/A
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How many drives can the 1756-M03SE/A control?
It supports up to 8 drives with flexible cycle times depending on data rate and drive count.
What control modes does the 1756-M03SE/A offer?
It provides position, velocity, and torque control modes for versatile motion applications.
What is the backplane current draw of this module?
It draws 760 mA from the 5.1V backplane and 2.5 mA from 24V, with 5.0 W power dissipation.
What temperature range does the 1756-M03SE/A operate in?
It operates from 0 to 60°C and can be stored from -40 to 85°C.