Allen-Bradley E300 User Manual

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 97
System Operation and Configuration Chapter 4
• Communication Fault Mode - when network communication is lost or an
error occurs
• Com
munication Idle Mode - when a network scanner changes to Idle
mode
or a PLC changes to Program mode
The default setting for these three modes is to Open/de-energize all E300 output
relays that
are assigned as a Normal/General Purpose Relay or Control/Control
& Trip Relay.
The E300 output relay states when assigned as a Normal/General Purpose Relay
or Control/Control & Trip Relay follow this priority order:
Table 57 - Output Relay Priority
Output Relay Protection Fault Modes
When the E300 relay has a trip event, you can configure the E300 output relays
to go to a specific state (Open or Closed) or ignore the trip event and continue to
operate as normal. The parameters that are listed on the following pages
configure the Protection Fault Mode for each E300 output relay.
Output Relay 0 Protection Fault Action (Parameter 304)
Output Relay 0 Protection Fault Action (Parameter 304) defines how Output
Relay 0 when assigned as a Normal/General Purpose Relay responds when a trip
event occurs.
Table 58 - Output Relay 0 Protection Fault Action (Parameter 304)
Output Relay 0 Protection Fault Value (Parameter 305)
Output Relay 0 Protection Fault Value (Parameter 305) defines which state
Output Relay 0 should go to when a trip event occurs.
IMPORTANT
It is important that you fully understand the use of these parameters and the
order of their priority under the conditions of a protection trip, communication
fault, and communication idle event.
Priority Normal/General Purpose Relay Control/Control & Trip Relay
1 Output Protection Fault State Output Communication Fault State
2 Output Communication Fault State Output Final Fault State
3 Output Final Fault State Output Communication Idle State
4 Output Communication Idle State
Value Assignment Description
0 GoToPrFltValue Set to Output Relay 0 Protection Fault Value (Parameter 305)
1 IgnoreIfPossible Continue to operate as commanded via the network or DeviceLogix

Allen-Bradley E300 Specifications

General

Type	Electronic Overload Relay
Mounting	DIN Rail or Panel Mount
Protection Class	IP20
Voltage Range	24…690 V AC/DC
Communication Options	EtherNet/IP, DeviceNet
Protection	Overload, phase loss, ground fault
Operating Temperature	-20°C to 60°C