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 88)

88 Rockwell Automation Publication 193-UM002I-EN-P - December 2011
Chapter 3 Protective Trip & Warning Functions
• bit 11 in Parameter 227, PW Trip Status, will set to “1”,
• bit 0 of Parameter 21, Device Status, will set to “1”,
• Trip Relay contact will be open, and
• The outputs will be placed in their Protection Fault state (if so
programmed).
OPFLD Inhibit Time, Parameter 285, allows the installer to inhibit an over
power factor leading trip from occurring during the motor starting sequence and
is adjustable from 0…250 seconds.
OPFLD Trip Delay, Parameter 286, allows the installer to define the time period
an over power factor leading condition must be present before a trip occurs. It is
adjustable from 0.1…25.0 seconds.
OPFLD Trip Level, Parameter 287, allows the installer to define the total power
factor leading in which the E3 Plus Overload Relay will trip. It is adjustable from
0…32767.
Over Power Factor Leading Warning
The E3 Overload Relay will immediately indicate an over power factor leading
warning condition if:
• no warning currently exists,
• Over Power Factor Leading Warning is enabled,
• OPFLD Inhibit Time has expired, and
• Total PF is equal to or greater than the OPFLD Warn Level.
When the over power factor leading warning conditions are satisfied, the:
• TRIP/WARN LED will flash an amber 2 long and 12 short blink pattern,
• bit 11 in PW Warn Status, Parameter 228, will set to “1”, and
• bit 1 of Device Status, Parameter 21, will set to “1”.
OPFLD Warn Level, Parameter 288, allows the installer to define the total power
factor leading in which the E3 Plus Overload Relay will indicate a warning and is
adjustable from 0…32767.
Protective Trip & Warning
Summary
The following tables provide a summary of protective trips and protective
warnings.