Product category:
Industrial Drives/Controls
News Release from: Rockwell Automation | Subject: Devicenet
Edited by the Engineeringtalk Editorial
Team on 14 December 2005
Module adds remote monitoring to relay
With the launch of a Devicenet module for the Allen-Bradley E1 Plus electronic overload relay, Rockwell Automation reduces the cost of remote motor management.
With the launch of a Devicenet module for the Allen-Bradley E1 Plus electronic overload relay, Rockwell Automation has reduced the cost of remote motor management The E1 Plus, part of the MCS modular control system range, is a compact, self-powered electronic overload relay
This article was originally published on Engineeringtalk on 22 Feb 2000 at 8.00am (UK)
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The Devicenet module is an optional accessory that adds intelligent motor protection to industrial networks.
Designed to mount directly onto the E1 Plus, the module adds 18mm to the overall width.
All control circuit connections are made via the E1 Plus terminals.
Parameters such as motor current and percentage of thermal capacity can be continually monitored over a network and displayed on a PC or HMI, as can information such as device status, trip-warning identification and trip history.
It also allows network access to E1 Plus features such as jam protection and over and underload warnings.
Its two discrete inputs and one relay output let it monitor and control a starter over the network.
Wide trip current adjustment means that a current range of 0.1 to 800A is covered by five overload relays and one Devicenet module.
Using thermal models of motor performance, motor loading can be accurately monitored without using heating elements, meaning the E1 Plus generates less than 2.5% of the heat of a traditional bimetal thermal overload relay.
A dedicated phase loss detection circuit improves protection by reacting to a phase loss condition in less than 3s.
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