Flowserve Limitorque MX DeviceNet Field Unit - Manual (Page 7)

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Limitorque MX DeviceNet Field Unit FCD LMENIM2328-00 – 11/05
flowserve.com
1 Introduction
1.1 Purpose
This manual explains how to install and operate the Limitorque MX™/DeviceNet field unit (DNFU) and is
to be used as an addendum to Bulletin LMENIM2306, Limitorque MX Installation and Operation Manual.
Up to 63 actuators, each containing a DeviceNet field unit, may be connected by a single 5 strand,
twisted-pair cable to form a DeviceNet network, two wires for connection to the data highway and two
wires for connection to the DC power lines of the network highway, plus a screen connection. A suitable
power supply and termination resistors on the highway are required in order for the FU to function
correctly. This network permits the actuators to be operated by various control room devices such as a
distributed control system (DCS), a programmable logic controller (PLC), or a personal computer (PC).
The DeviceNet system communicates status and alarm data from each MX actuator.
1.2 How to Use this Manual
Each section provides the MX user with information on installing and operating the MX DNFU.
Section 1, Introduction: Details user safety and knowledge requirements, system capabilities, and
features.
Section 2, System Components: Focuses on the description of the DeviceNet system hardware and
software components.
Section 3, Installation and Configuration: Provides details for installing and configuring a DNFU.
Section 4, Object Model Diagram: Provides a list of inputs and outputs supported through the Assembly
Object system information.
Section 5, View DeviceNet Status
Section 6, Associated Documents
Section 7, Troubleshooting
Section 8, How to Order Parts
Section 9, Regulatory Information
Section 10, Wiring Diagram
1.3 User Safety
Safety notices in this manual detail precautions the user must take to reduce the risk of personal injury
and damage to the equipment. The user must read and be familiar with these instructions before
attempting installation, operation, or maintenance. Failure to observe these precautions could result
in serious bodily injury, damage to the equipment, warranty void, or operational difficulty. User must
follow local and state safety regulations.
Safety notices are presented in this manual in three forms:
WARNING: c Refers to personal safety. Alerts the user to potential danger. Failure to follow
warning notices could result in personal injury or death.