Rockwell Automation Publication 193-UM015E-EN-P - October 2015 429
Protective Trip and Warning Functions Chapter 6
• Any relay outputs configured as a Trip Alarm closes
• Any relay outputs configured as a Normal Relay are placed in their
Prote
ction Fault state (if so programmed)
Thermistor (PTC) Warning
The E300 relay provides a thermistor (PTC) warning indication if:
• No trip currently exists
• Resistance of the thermistor (PTC) sensors is greater than 3400 Ω
If
the E300 relay warns on a thermistor (PTC), the following occurs:
• T
he TRIP/WARN LED flashes a yellow 3-long / 2-short blink pattern
• Bit 1 in Control Warning Status (Parameter 13) sets to 1
• Bit 1 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Warning Alarm closes
DeviceLogix Protection
An E300 relay with firmware v5.000 or higher has a DeviceLogix logic engine.
You can create custom logic programs for distributed motor control applications.
See Chapter 9
for more information on DeviceLogix. DeviceLogix provides you
with the capability to create a customized protection algorithm that can generate
a trip or warning event.
The Protection Fault State of Relay 0, Relay 1, Relay 2, Digital Module 1 Output
Relays, Digital Module 2 Output Relays, Digital Module 3 Output Relays, and
Digital Module 4 Output Relays are defined by the respective parameters:
• Output PT00 Protection Fault Action (Parameter 304)
• Output PT00 Protection Fault Value (Parameter 305)
• Output PT01 Protection Fault Action (Parameter 310)
• Output PT01 Protection Fault Value (Parameter 311)
• Output PT02 Protection Fault Action (Parameter 316)
• Output PT02 Protection Fault Value (Parameter 317)
• Output Digital Module 1 Protection Fault Action (Parameter 322)
• Output Digital Module 1 Protection Fault Value (Parameter 323)
• Output Digital Module 2 Protection Fault Action (Parameter 328)
• Output Digital Module 2 Protection Fault Value (Parameter 329)
• Output Digital Module 3 Protection Fault Action (Parameter 334)
• Output Digital Module 3 Protection Fault Value (Parameter 335)
• Output Digital Module 4 Protection Fault Action (Parameter 340)
• Output Digital Module 4 Protection Fault Value (Parameter 342)