Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 13)

14 Rockwell Automation Publication 193-UM011A-EN-P - September 2010
Chapter 1 Product Overview
Status Indication The EC4 Current Monitoring Relay provides the following LED indicators:
NETWORK STATUS: This green/red LED indicates the status of the network
connection. See Chapter 11 — Troubleshooting for the possible LED
indications and the associated definitions.
TRIP / WARN: This red/amber LED flashes an amber code under a warning
condition and a red code when tripped. The warning or trip code is indicated by
the number of flashes in sequence. Refer to the side label on the product for
trip/warning codes or Chapter 11 — Troubleshooting.
OUT A and B: These amber LEDs illuminate when the output contacts are
commanded closed.
IN 1…4: These amber LEDs illuminate when the user-connected device contact
is closed.
Test/Reset Button The Test/Reset button located on the front of the EC4 Current Monitoring
Relay allows the user to perform the following:
ATTENTION: The state of the outputs during a Protection Fault,
DeviceNet Comm Fault, or a DeviceNet Comm Idle may be
dependent on the OUTA or OUTB Pr FltState, Pr FltValue, Dn
FltState, Dn FltValue, Dn IdlState, and Dn IdlValue
programmable parameters. For details refer to the Output Setup
Group section of Chapter 5 – Programmable Parameters.
ATTENTION: The EC4 Current Monitoring Relay’s output control
firmware latches “OUT A” and “OUT B” closed upon receipt of a
network “close” command. The outputs will maintain the
commanded closed state until receipt of a network “open”
command. Parameters “OutX Pr FltState” and “OutX Pr
FltValue”, found in the EC4 Current Monitoring Relay’s Output
Setup group, allow flexibility concerning the operation of the
outputs in the event of a trip. Factory default settings cause
the outputs to open upon occurrence of a trip. EC4 outputs
that were closed prior to a trip will re-close upon trip
reset, provided that a network “open” command is not
received first.
NETWORK
STATUS TRIP / WARN
OUT A OUT B
IN 1 IN 3
IN 2 IN 4