Rockwell Automation Allen-Bradley E300

Rockwell Automation Publication 193-UM015D-EN-P - February 2015 257
Protective Trip and Warning Functions Chapter 6
The E300 Electronic Overload Relay trips with a hardware fault trip indication
if:
• No trip currently exists
• Nonvolatile Storage Fault Trip is enabled
• An issue exists in the E300 Electronic Overload Relay’s nonvolatile storage
If the E300 Electronic Overload Relay trips on a nonvolatile storage fault trip, the
following occurs:
• The TRIP/WARN LED flashes a red 3-long / 14-short blink pattern
• Bit 13 in Control Trip Status (Parameter 7) sets to 1
• Bit 0 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Trip Relay open
• Any relay outputs configured as a Control Relay open
• Any relay outputs configured as a Trip Alarm close
• Any relay outputs configured as a Normal Relay are placed in their
Protection Fault state (if so programmed)
Test Mode Trip
Some motor control center enclosures include a Test Position in which the motor
power is disconnected from the enclosure, but the control power is still active.
This allows motor control center commissioning staff to verify that the motor
starter is mechanically working and communications are established with the
automation control system. The E300 Electronic Overload Relay provides the
capability to put the overload relay into a Test Mode Trip state if motor control
IMPORTANT
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)