Allen-Bradley 1768-M04SE SERCOS Module

Allen-Bradley 1768-M04SE CompactLogix SERCOS Interface Module

Product Introduction

The Allen-Bradley 1768-M04SE module brings advanced motion control to the CompactLogix platform. This 4-axis SERCOS interface module connects directly to Kinetix servo drives. It uses a fiber-optic ring network for fast, reliable communication. Specifically, it supports position and velocity control modes. Therefore, it fits complex automation tasks like packaging, printing, and material handling. Additionally, this module works seamlessly with 1768-L43 and 1768-L45 controllers. You can install one unit with the 1768-L43 processor. Meanwhile, the 1768-L45 supports up to two modules for expanded motion axes.

Key Technical Specifications

The 1768-M04SE offers flexible SERCOS data rates. You can choose between 4 Mbps and 8 Mbps. This choice affects the update cycle time directly. For example, at 4 Mbps with up to two drives, the cycle time is just 0.5 ms. If you connect four drives at 4 Mbps, the cycle time becomes 1 ms. However, at 8 Mbps with four drives, it returns to a fast 0.5 ms. This flexibility lets you balance speed and axis count effectively. Moreover, the module consumes only three connections. This efficient design saves controller resources.

Drive Compatibility and Control

This interface module supports major Allen-Bradley servo drives. Specifically, it works with Kinetix 2000, Kinetix 6000, Kinetix 7000, and Ultra 3000 SERCOS drives. Consequently, you gain a wide range of power options. The module handles up to four drives simultaneously. Furthermore, it includes two auxiliary feedback axes. This feature supports advanced positioning tasks. The SERCOS Class B operation ensures reliable position or velocity control. Therefore, the 1768-M04SE is a versatile choice for many motion systems.

Fiber-Optic Connection Details

The 1768-M04SE uses F-SMA standard screw-type connectors. These connectors ensure secure and stable fiber connections. You can use either plastic or glass fiber-optic cables. For plastic cables, the core diameter is 980 µm ± 60 µm. Glass cables have a 200 µm ± 4 µm core. Additionally, plastic cables operate from -55°C to 85°C. Glass cables work from -20°C to 85°C. This wide range suits various factory environments. Moreover, the bend radius is critical for installation. Plastic cables without a jacket need a 25 mm radius. Nylon-jacketed plastic cables require 40 mm. Glass cables need a 30 mm bend radius. Always follow these limits to avoid signal loss.

Electrical and Power Specifications

Understanding power requirements is essential for system design. The 1768-M04SE draws 969 mA at 5.2 VDC from the backplane. It also consumes 1.4 Amps at 24 Volts. Total power dissipation reaches 5.04 W. Meanwhile, power consumption is 33.6 Watts. These values help you plan your power budget accurately. The module also provides 30 Volts of continuous isolation voltage. This isolation enhances system safety and signal integrity.

Mechanical and Environmental Data

Physically, the 1768-M04SE fits into a single slot. Its dimensions are 132 mm x 57 mm x 105 mm (5.2 x 2.23 x 4.14 inches). The lightweight design weighs only 0.2 kg. Shipping weight is about 0.9 kg (2 lbs). The module uses an open enclosure type. Thus, it requires installation inside a protected cabinet. You can mount it on a standard DIN rail. Alternatively, panel mounting is also supported. This flexibility simplifies integration into existing control panels.

Installation and Mounting Guide

First, power down the CompactLogix system completely. Next, select either DIN rail or panel mounting. For DIN rail, snap the module securely onto the rail. Ensure the locking mechanism engages fully. For panel mounting, use the appropriate screws. Then, connect the fiber-optic cables to the F-SMA ports. Observe the correct bend radius for your cable type. After that, insert the module into the controller chassis. Connect the backplane connector carefully. Finally, apply power and configure the module in your software. Remember, the 1768-M04SE uses electronic keying for proper identification. This feature prevents incorrect firmware matching.

Packaging List

• 1 x 1768-M04SE SERCOS Interface Module

• 1 x Installation Instructions Manual

• 1 x Fiber-optic connector dust caps (set)

• Mounting hardware for DIN rail (pre-installed)

• Panel mounting brackets (optional, included)

Note: Fiber-optic cables and drives are sold separately.

Shipping Information

We ship all orders via FedEx, UPS, or DHL. These carriers ensure fast and trackable delivery worldwide. The module is packaged securely in anti-static materials. It is then boxed with adequate cushioning. This protects against physical damage during transit. Please allow 1-2 business days for order processing. Tracking numbers are provided upon shipment.

Frequently Asked Questions (FAQ)

1. Can I use the 1768-M04SE with a 1768-L43 controller?
Yes, the 1768-M04SE is fully compatible with the 1768-L43 processor. This combination supports up to four axes of motion. You can install a single module with this controller.

2. What drives are compatible with this SERCOS module?
This module works with Kinetix 2000, Kinetix 6000, Kinetix 7000, and Ultra 3000 SERCOS servo drives. These drives cover a broad power range for diverse applications.

3. What is the minimum cycle time for the 1768-M04SE?
At 8 Mbps with up to four drives, the cycle time is 0.5 ms. Even with a full load, the cycle time never exceeds 1 ms. This fast response supports high-performance motion tasks.

4. What type of fiber-optic cable should I use?
You can use plastic or glass fiber cables. Plastic cables have a 980 µm core. Glass cables use a 200 µm core. Always match the core diameter and connector type (F-SMA) for proper operation.

5. How many modules can I install with a 1768-L45 processor?
The 1768-L45 controller supports up to two 1768-M04SE modules. This allows you to control up to eight drives total. It is a scalable solution for larger motion systems.