166
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
Table 203 - L2 Under Current Warning Level (Parameter 271)
L3 Under Current Trip
The E300 Electronic Overload Relay trips with a L3 Under Current indication
if:
•
No trip currently exists
•
L3 Under Current Trip is enabled
•
Current is present
•
Under Current Inhibit Timer has expired
•
Percent FLA (Parameter 49) is less than the L3 Under Current Trip Level
for a time period greater than the L3 Under Current Trip Delay.
If the E300 Electronic Overload Relay trips on a L3 Under Current, the:
•
TRIP/WARN LED status indicator flashes a red 10-short blink pattern
•
Bit 9 in Current Trip Status (Parameter 4) sets to 1
•
Bit 0 in Device Status 0 (Parameter 20) sets to 1
•
Any relay outputs configured as a Trip Relay open
•
Any relay outputs configured as a Control Relay open
•
Any relay outputs configured as a Trip Alarm close
•
Any relay outputs configured as a Normal Relay are placed in their
Protection Fault state (if so programmed)
Default Value
40
Minimum Value
10
Maximum Value
100
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
%FLA
IMPORTANT
The L2 Under Current Warning function does not include a time delay feature.
Once the Under Current Inhibit Timer has expired, the L2 Under Current
Warning indication is instantaneous.
Содержание Allen-Bradley E300
Страница 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Страница 124: ...124 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 4 System Operation and Configuration Notes...
Страница 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Страница 292: ...292 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 6 Protective Trip and Warning Functions...
Страница 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Страница 372: ...372 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 8 Metering and Diagnostics...
Страница 460: ...460 Rockwell Automation Publication 193 UM015D EN P February 2015 Appendix A Specifications Notes...
Страница 501: ...Rockwell Automation Publication 193 UM015D EN P February 2015 501 Parameter List AppendixB Notes...
Страница 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
Страница 545: ......