Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario descargar pdf (Pagina 75)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 75

Chapter 4

Operating Modes

Introduction

The E300™ Electronic Overload Relay supports up to 54 Operating Modes which

consist of configuration rules and logic to control typical full voltage motor

starters including:

• O

verload

• Non-Reversing Starter

• Reversing Starter

• Wye/Delta (Star/Delta) Starter

• Two Speed Starter

• Monitoring Device

is chapter explains the configuration rules, logic, and control wiring required

for the

available Operating Modes (Parameter 195). Failure to follow the

configuration rules will cause the E300 Electronic Overload Relay to go into

Invalid Configuration Mode and trip the E300 Electronic Overload Relay on a

configuration trip.

Overload (Network)

The E300 Electronic Overload Relay’s default Operating Mode (Parameter 195)

is Overload (Network) in which the E300 Electronic Overload Relay operates as

a traditional overload relay with one output relay assigned as a normally closed

Trip Relay. Users can use network commands to control the remaining output

relays that are assigned as Normal output relays.

Rules

1. One output relay must be assigned as a Trip Relay. Set any of the Output

Ptxx Assignments (Parameters 202-204) to Trip Relay.

2. Overload Trip must be enabled in TripEnableI (Parameter 183).

Wiring Diagram

The E300 Electronic Overload Relay is wired as a traditional overload relay with

one of the output relays configured as a normally closed Trip Relay. The example

below is a wiring diagram of a Non-Reversing Starter. Relay 0 is configured as a

Trip Relay, and Relay 1 is configured as a normally open Normal Relay which

receives commands from an automation controller to energize the contactor coil.

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Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 75