Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 191)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 191
Protective Trip and Warning Functions Chapter 5
Table 192 - Under Power Factor Leading Warn Level (Parameter 421)
Over Power Factor Leading Trip
The E300 Electronic Overload Relay will trip with an Over Power Factor
Leading indication if:
• No trip currently exists
• Over Power Factor Leading Trip is enabled
• Current is present
• Voltage is present
• Over Power Factor Leading Inhibit Time has expired
• The total power factor leading is greater than the Over Power Factor
Leading Trip Level for a time period greater than the Over Power Factor
Leading Trip Delay.
If the E300 Electronic Overload Relay trips on an over power factor leading, the:
• TRIP/WARN LED status indicator will flash a red 2-long / 12-short
blink pattern
• Bit 11 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 USINT
Size (Bytes) 1
Scaling Factor 1
Units %
IMPORTANT The Under Power Factor Leading Warning function does not include a time
delay feature. Once the Under Power Factor Leading Inhibit Time has expired,
the Under Power Factor Leading Warning indication is instantaneous.