Rockwell Automation Publication 193-UM015E-EN-P - October 2015 343
Protective Trip and Warning Functions Chapter 6
L2 Under Current Trip
The E300 relay trips with a L2 Under Current indication if:
• No trip currently exists
• L2 Under Current Trip is enabled
• Current is present
• Under Current Inhibit Timer has expired
• L2 Percent FLA (Parameter 48) is less than the L2 Under Current Trip
Level
for a time period greater than the L2 Under Current Trip Delay.
If the E300 relay trips on a L2 Under Current, the:
• TRIP/WARN LED status indicator flashes a red 9-short blink pattern
• Bit 8 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
P
rote
ction Fault state (if so programmed)
Maximum Value 100
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units %FLA
The L1 Under Current Warning function does not include a time delay feature.
Once the Under Current Inhibit Timer has expired, the L1 Under Current
Warning indication is instantaneous.
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