176
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
L3 Over Current Trip Delay
L3 Over Current Trip Delay (Parameter 282) allows you to define the time
period an L3 Over Current condition must be present before a trip occurs. It is
adjustable from 0.1…25.0 seconds.
Table 214 - L3 Over Current Trip Delay (Parameter 282)
L3 Over Current Trip Level
L3 Over Current Trip Level (Parameter 283) allows you to define the current at
which the E300 Electronic Overload Relay trips on a L3 Over Current. It is user-
adjustable from 10…100% of the FLA Setting (Parameter 171).
Table 215 - L3 Over Current Trip Level (Parameter 283)
L3 Over Current Warning
The E300 Electronic Overload Relay indicates an L3 Over Current warning if:
•
No warning currently exists
•
L3 Over Current Warning is enabled
•
Current is present
•
The Over Current Inhibit Timer has expired
•
L3 Percent FLA (Parameter 49) is greater than the L3 Over Current
Warning Level
Default Value
1.0
Minimum Value
0.1
Maximum Value
25.0
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
10
Units
Seconds
Default Value
100
Minimum Value
10
Maximum Value
100
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
%FLA
IMPORTANT
The Over Current Inhibit Timer starts after the maximum 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 overcurrent
condition until the Over Current 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: ......