Allen-Bradley SERCOS 1756-M03SE/A User manual

Publication 1756-IN572E-EN-P – March 2004
Installation Instructions
3, 8, or 16 Axis SERCOS interface Module
(Catalog Number/Series 1756-M03SE/A, 1756-M08SE/B, and
1756-M16SE/A)
The 3, 8, or 16 Axis SERCOS interface™ module mounts in a
ControlLogix™ chassis and uses fiber optical connections for all field-side
wiring.
Before you install your module you should have:
•installed and grounded a 1756 chassis and power supply.
•ordered and received the fiber optic cables for your application.
For: See page:
Important User Information 2
Overview 4
Determining the Power Requirements 5
Identifying Module Components 5
Module Product Label 8
Installing the Module 8
Fiber Optic Transmission 10
Fiber Optic Cables 11
Cable Connector Handling and Maintenance 14
Supported Drives 15
Ring Topology 17
Checking the LED Indicators 18
Removing the Module from the Chassis 21
Module Specifications 22
Hazardous Location Information 26
Rockwell Automation Support Back Cover
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23, 8, or 16 Axis SERCOS interface Module
Publication 1756-IN572E-EN-P – March 2004
Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell
Automation sales office or online at http://www.ab.com/manuals/gi) describes some
important differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of uses for solid
state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or
consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes.
Because of the many variables and requirements associated with any particular installation,
Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on
the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of
information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission
of Rockwell Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
WARNING Identifies information about practices or circumstances that can cause an
explosion in a hazardous environment, which may lead to personal injury or
death, property damage, or economic loss.
IMPORTANT Identifies information that is critical for successful application and
understanding of the product.
ATTENTION Identifies information about practices or circumstances that can lead to
personal injury or death, property damage, or economic loss. Attentions help
you:
•identify a hazard
•avoid a hazard
•recognize the consequence
SHOCK HAZARD Labels may be located on or inside the drive to alert people that dangerous
voltage may be present.

3, 8, or 16 Axis SERCOS interface Module 3
Publication 1756-IN572E-EN-P – March 2004
Related Documentation
The following documents contain additional information concerning related
Allen-Bradley products. To obtain a copy, contact your local Rockwell
Automation office or distributor.
BURN HAZARD Labels may be located on or inside the drive to alert people that surfaces may
be dangerous temperatures.
For: Read This Document: Publication
Number
ControlLogix motion commands Motion Instruction Set
Reference Manual
1756-RM007
Information on setup and
configuration
ControlLogix Motion
Module Setup and
Configuration manual
1756-UM006
Information on installation, wiring,
and setup for the 1394C-SJTxx-D
1394 SERCOS Interface
Multi Axis Motion Control
System
1394C-5.20
Information on integrating the 1394
drive with SERCOS
1394 SERCOS Integration
Manual
1394-IN024
Information on Ultra3000 installation Ultra3000 Hardware
Installation Manual
2098-IN003
Information on Kinetix 6000 Module
installation
Kinetix 6000 Module
Installation Manual
2094-IN004
Information on Kinetix 6000
installation
Kinetix 6000 Installation
Manual
2094-IN001
Information on integrating the Kinetix
6000 with SERCOS
Kinetix 6000 Integration
Manual
2094-IN002
Information on integrating the
Ultra3000 with the 1756-M08SE
Ultra3000 SERCOS
Integration Manual
2098-IN005
Information on use of the 8720MC
High Performance Drive
8720MC High Performance
Drive User Manual
8720MC-UM001
Important User Information
Allen-Bradley PLCs

43, 8, or 16 Axis SERCOS interface Module
Publication 1756-IN572E-EN-P – March 2004
Overview
The 3, 8, or 16 Axis SERCOS interface module serves as a link between the
ControlLogix platform and intelligent drives. The communication link
between the module and the drive(s) is via IEC/EN 61491 SErial Real-time
COmmunication System (SERCOS) using fiber optic medium. Fiber optics
assures reliable high speed data transmission with excellent noise immunity,
improved performance, and elimination of interconnect wiring.
SERCOS is a real-time optical serial interface between the control unit and its
associated drives to transmit periodic and non-periodic data. Its topology is
that of a ring with one master and multiple slaves (axes). The 3, 8 or 16 Axis
SERCOS interface module serves as the interface between one ControlLogix
processor and 1 to 3 axes for the 1756-M03SE, 1 to 8 axes for the
1756-M08SE, and 1 to 16 axes for the 1756-M16SE operating in either
position, velocity, or torque mode. The module has a programmable ring
Cycle Period of 0.5ms, 1ms or 2ms depending on the number of axes and a
ring Data Rate of 4 Mbaud or 8 Mbaud. The module is designed to meet the
Control and Information Protocol (CIP) common specification.
Preventing Electrostatic Discharge
ATTENTION This equipment is sensitive to electrostatic discharge,
which can cause internal damage and affect normal
operation. Follow these guidelines when you handle
this equipment:
•Touch a grounded object to discharge potential
static.
•Wear an approved grounding wriststrap.
•Do not touch connectors or pins on component
boards.
•Do not touch circuit components inside the
equipment.
•If available, use a static-safe workstation.
•When not in use, store the equipment in
appropriate static-safe packaging.

3, 8, or 16 Axis SERCOS interface Module 5
Publication 1756-IN572E-EN-P – March 2004
Removing and Inserting Under Power (RIUP)
This module is designed so you can remove and insert it under backplane
power and field-side power.
Repeated electrical arcing causes wear to contacts on both the module and its
mating connector. Worn contacts may create electrical resistance that can
affect module operation.
This equipment is classified as open equipment and must be installed
(mounted) in an enclosure during operation as a means of providing safety
protection.
Determining the Power Requirements
This module receives power from the 1756 chassis power supply and requires
two sources of power: 760 mA at 5.1V and 2.5 mA at 24V from the
backplane. Add this current to the requirements of all other modules in this
chassis to prevent overloading the backplane power supply.
Identifying Module Components
The following diagrams provide two views of the module. The first diagram is
a front view which shows the position and function of the LEDs and the
icons for the receiver and transmitter. The second diagram is a side view
which shows the position of the transmitter and receiver connectors. (The
1756-M03SE and the 1756-M16SE look identical to the 1756-M08SE.)
WARNING When you insert or remove the module while backplane
power is on, an electrical arc can occur. This could cause
an explosion in hazardous location installations. Be sure
that power is removed or the area is nonhazardous
before proceeding.
Allen-Bradley PLCs

63, 8, or 16 Axis SERCOS interface Module
Publication 1756-IN572E-EN-P – March 2004
Figure 1 Front View of the Module
Receiver
OK
SERCOS Connector
(front & rear)
Transmitter Icon
Receiver Icon
SERCOS Ring
Status
Status LEDs
Module Health &
Communication Status
Tx (rear)
Rx (front)
CP
SERCOS
Communication
Phase
SERCOS interface
TM

3, 8, or 16 Axis SERCOS interface Module 7
Publication 1756-IN572E-EN-P – March 2004
Figure 2 Side View of the Module Showing Fiber Optic Cable Connections
The end of the cable is inserted into the appropriate connector of the
1756M03SE, 1756-M08SE, or 1756-M16SE. The threaded portion of the
cable connector assembly fits over the module connector and is screwed on
finger tight. Make sure that you remove the protector end caps before
Transmitter
Receiver
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83, 8, or 16 Axis SERCOS interface Module
Publication 1756-IN572E-EN-P – March 2004
attaching cable to the module. The end of the cable that emits light is the
transmitter.
The Module’s Product Label
The following figure shows the product label that is affixed to the side of the
1756-M03SE, 1756-M08SE, and 1756-M16SE modules. The three modules
look very much alike and checking the label carefully is the only way to be sure
that you have the correct module. Pay particular attention to the CAT. NO.
SERIES field on the label. This field indicates whether you have a
1756-M03SE, 1756-M08SE, or 1756-M16SE module and also the series of
the module. The label contains additional information about the module and
should be thoroughly checked prior to installation to ensure that the product
matches your expectations.
Figure 3 1756-M08SE Product Label
Installing the Module
To install the 3, 8, or 16 Axis SERCOS interface module:
A-B Catalog Number
and Series
Product Name
Certifications
Ratings
Series and Firmware
version Information
Power Requirements
A-B Part Number
Date of Manufacture
Catalog
Revision

3, 8, or 16 Axis SERCOS interface Module 9
Publication 1756-IN572E-EN-P – March 2004
1. Align the module circuit board with the top and bottom chassis guides
Figure 4 Align Module
POWE
R
Printed circuit
board
OK
SERCOS interface
Allen-Bradley PLCs

10 3, 8, or 16 Axis SERCOS interface Module
Publication 1756-IN572E-EN-P – March 2004
2. Push evenly and firmly to seat the module in the chassis. It is seated
when the top and bottom locking tabs have snapped into place.
Figure 5 Seat the Module
Fiber Optic Transmission
The fiber optic transmitter for the SERCOS interface 3, 8, or 16 Axis module
uses a 650nm wavelength. This produces a visible light from the port and is a
determinant in factoring maximum cable lengths. The high light output lets
you use both plastic optical fiber (POF) and Hard Clad Silica (HCS®) cables.
The fiber optics used with the 1756-M03SE, 1756-M08SE and 1756-M16SE
modules are rated Class 1 for IEC Laser (LED) Safety Classification. Be aware
that under certain conditions, viewing the optical port may expose the eye to
hazard. Under most viewing conditions, there is no eye hazard.
ATTENTION When viewed under some conditions, the optical port
may expose the eye beyond the maximum permissible
exposure recommended in ANSI Z136.2, 1993.
PO
WER
Locking
tab
OK
SERCOS interface