Rockwell Automation Publication 193-UM015D-EN-P - February 2015
241
Protective Trip and Warning Functions
Chapter 6
Table 295 -
Under Power Factor Leading Trip Level (Parameter 420)
Under Power Factor Leading Warning
The E300 Electronic Overload Relay indicates an Under Power Factor Leading
warning if:
•
No warning currently exists
•
Under Power Factor Leading Warning is enabled
•
Current is present
•
Voltage is present
•
Under Power Factor Leading Inhibit Time has expired
•
The total power factor leading is equal to or less than the Under Power
Factor Leading Warning Level
When the Under Power Factor Leading Warning conditions are satisfied, the:
•
TRIP/WARN LED flashes a yellow 2-long / 11-short blink pattern
•
Bit 10 in Power Warning Status (Parameter 12) sets to 1
•
Bit 1 in Device Status 0 (Parameter 20) sets to 1
•
Any relay outputs configured as a Warning Alarm closes
Under Power Factor Leading Warn Level
Under Power Factor Leading Warn Level (Parameter 421) allows you to define
the power factor leading at which the E300 Electronic Overload Relay indicates a
warning. It is user-adjustable from 0…2,000,000 kW.
Default Value
90
Minimum Value
100
Maximum Value
0
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
%
IMPORTANT
The Under Power Factor Leading Inhibit Time starts after a phase voltage
transitions from 0V to 20V L-L and a phase of load current transitions from 0 A
to 30% of the minimum FLA setting of the device. The E300 Electronic Overload
Relay does not begin monitoring for an under power factor leading condition
until the Under Power Factor Leading Inhibit Time expires.
Summary of Contents for Allen-Bradley E300
Page 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Page 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Page 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Page 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
Page 545: ......