Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 86)

86 Rockwell Automation Publication 193-UM002I-EN-P - December 2011
Chapter 3 Protective Trip & Warning Functions
OPFLG Trip Level, Parameter 279, allows the installer to define the total power
factor lagging in which the E3 Plus Overload Relay will trip. It is adjustable from
0…32767.
Over Power Factor Lagging Warning
The E3 Overload Relay will immediately indicate an over power factor lagging
warning condition if:
• no warning currently exists,
• Over Power Factor Lagging Warning is enabled,
• OPFLG Inhibit Time has expired, and
• Total PF is equal to or greater than the OPFLG Warn Level.
When the over power factor lagging warning conditions are satisfied, the:
• TRIP/WARN LED will flash an amber 2 long and 10 short blink pattern,
• bit 9 in PW Warn Status, Parameter 228, will go to “1”, and
• bit 1 of Device Status, Parameter 21, will go to “1”.
OPFLG Warn Level, Parameter 280, allows the installer to define the total power
factor lagging in which the E3 Plus Overload Relay will indicate a warning and is
adjustable from 0…32767.
Under Power Factor Leading Trip
The E3 Overload Relay will trip with an under power factor leading indication if:
No trip currently exists
Under Power Factor Leading protection is enabled
UPFLD Inhibit Time has expired
Total PF is equal to or less than UPFLD Trip Level for a time period greater than
the programmed UPFLD Trip Delay
When the under power factor leading trip conditions are satisfied, the:
• TRIP/WARN LED will flash a red 2 long and 11 short blink pattern,
• bit 10 in PW Trip Status, Parameter 227, will set to “1”,
• bit 0 of Device Status, Parameter 21, will set to “1”,
• Trip Relay contact will be open, and
• outputs will be placed in their Protection Fault state (if so programmed).