Rockwell Automation 284E ArmorStart with EtherNet/IP - User Manual - Manual (Page 20)

20 Rockwell Automation Publication 280E-UM001B-EN-P - July 2012
Chapter 1 Product Overview
Figure 4 - Sensorless Vector Control
Description of Features Overload Protection
The ArmorStart Distributed Motor Controller incorporates, as standard,
electronic motor overload protection. This overload protection is accomplished
electronically with an
I
2
t algorithm. The ArmorStart’s overload protection is
programmable via the communication network, providing the user with
flexibility.
The Bulletin 280E/281E overload trip class can be selected for class 10, 15, 20
protection. The Bulletin 284E overload trip class is Class 10 only. Ambient
insensitivity is inherent in the electronic design of the overload (refer to
Chapter 11 for the specification for overload trip curves).
Embedded Switch
Technology ArmorStart EtherNet/IP includes embedded switch technology as standard.
Each ArmorStart EtherNet/IP will consume one Common Industrial Protocol
(CIP) connection. The ArmoStart will consume a Class 3 connection when
RSLogix 5000
software displays the AOP.
In general, for a DLR or linear network keep individual segments to 50 nodes
or less. In addition, it is important to reserve a minimum of 10% of available
bandwidth to allow for processing of explicit messages.
Common features are:
• Designed according to the ODVA specification for EtherNet/IP.
ODVA specification found at http://www.odva.org/
• Embedded switch technology is designed to enable end devices to form
linear and ring network topologies
• Supports Device Level Ring (DLR) protocol