Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 185)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 185
Protective Trip and Warning Functions Chapter 5
Table 186 - Under Power Factor Lagging Warn Level (Parameter 413)
Over Power Factor Lagging Trip
The E300 Electronic Overload Relay will trip with an Over Power Factor
Lagging indication if:
• No trip currently exists
• Over Power Factor Lagging Trip is enabled
• Current is present
• Voltage is present
• Over Power Factor Lagging Inhibit Time has expired
• The total power factor lagging is greater than the Over Power Factor
Lagging Trip Level for a time period greater than the Over Power Factor
Lagging Trip Delay.
If the E300 Electronic Overload Relay trips on an over power factor lagging, the:
• TRIP/WARN LED status indicator will flash a red 2-long / 10-short
blink pattern
• Bit 9 in Power Trip Status (Parameter 6) will set to 1
• Bit 0 in Device Status 0 (Parameter 20) will set to 1
• Any relay outputs configured as a Trip Relay will open
• Any relay outputs configured as a Control Relay will open
• Any relay outputs configured as a Trip Alarm will close
• Any relay outputs configured as a Normal Relay will be placed in their
Protection Fault state (if so programmed)
Default Value -95
Minimum Value -100
Maximum Value 0
Parameter Type SINT
Size (Bytes) 1
Scaling Factor 1
Units %
IMPORTANT The Under Power Factor Lagging Warning function does not include a time
delay feature. Once the Under Power Factor Lagging Inhibit Time has expired,
the Under Power Factor Lagging Warning indication is instantaneous.