180 Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6 Protective Trip and Warning Functions
• L1 Line Loss Warning is enabled
• L1 Line Loss is activated via the appropriately programmed digital input
(see Input Assignments, Parameters 196…201, in
Chapter 4)
• Line Loss Inhibit Timer has expired
• L1 Percent FLA (Parameter 47) is equal to 0%
When the L1 Line Loss Warning conditions are satisfied, the:
• TRIP/WARN LED flashes a yellow 14-short blink pattern
• Bit 13 in Current Warning Status (Parameter 10) sets to 1
• Bit 1 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Warning Alarm closes
L2 Line Loss Trip
The E300 Electronic Overload Relay trips with a L2 Line Loss indication if:
• No trip currently exists
• L2 Over Current Trip is enabled
• L2 Line Loss is activated via the appropriately programmed digital input
(see Input Assignments, Parameters 196…201, in
Chapter 4)
• Line Loss Inhibit Timer has expired
• L2 Percent FLA (Parameter 48) is equal to 0% for a time period greater
than the L2 Line Loss Trip Delay.
If the E300 Electronic Overload Relay trips on a L2 Line Loss, the:
• TRIP/WARN LED status indicator flashes a red 15-short blink pattern
• Bit 14 in Current Trip Status (Parameter 4) 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)
The L1 Line Loss Warning function does not include a time delay feature. Once
the Line Loss Inhibit Timer has expired, the L1 Line Loss Warning indication is
instantaneous.
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