Rockwell Automation Publication 193-UM015D-EN-P - February 2015 239
Protective Trip and Warning Functions Chapter 6
Under Power Factor Leading Trip
The E300 Electronic Overload Relay trips with an Under Power Factor Leading
indication if:
• No trip currently exists
• Under Power Factor Leading Trip is enabled
• Current is present
• Voltage is present
• Under Power Factor Leading Inhibit Time has expired
• The total power factor leading is less than the Under Power Factor Leading
Trip Level for a time period greater than the Under Power Factor Leading
Trip D elay.
If the E300 Electronic Overload Relay trips on an under power factor leading,
the:
• TRIP/WARN LED status indicator flashes a red 2-long / 11-short blink
pattern
• Bit 10 in Power Trip Status (Parameter 6) 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 Over Power Factor Lagging Warning function does not include a time delay
feature. Once the Over Power Factor Lagging Inhibit Time has expired, the Over
Power Factor Lagging Warning indication is instantaneous.
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