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LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
LM10 Motor Protection System
Chapter 1: Introduction
GE Consumer & Industrial
Multilin
Introduction
1.1 Description
1.1.1 The LM10 Relay
The GE Multilin LM10 Motor Protection System is a modular device designed to protect
motors from various fault conditions. This device interfaces with a DeviceNet network. The
network will monitor and control the relay status and functions. The relay also has the
capability of operating in a standalone mode. Configuration can be accomplished via DIP
switches on the front of the relay.
Additionally, the relay has an interface port to communicate to the LM10 programming
and display unit (PDU). The PDU is a self-contained device consisting of a membrane switch
keypad, a liquid crystal display (LCD), and control electronics for communication with the
relay. This unit provides a method of configuring and monitoring the LM10. The PDU
incorporates an RS232 interface with a proprietary communications protocol.
DeviceNet is a registered trademark of Open DeviceNet Vendor's Association (ODVA).