144
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
Table 177 - Ground Fault Inhibit Time (Parameter 242
Table 178 - Device Status 0 (Parameter 20)
Ground Fault Trip
The E300 Electronic Overload Relay trips with a ground fault indication if:
•
No trip currently exists
•
Ground fault protection is enabled
•
Ground fault current is present
•
Ground Fault Inhibit Time has expired
•
Ground Fault Current is equal to or greater than the Ground Fault Trip
Level for a time period greater than the Ground Fault Trip Delay
If the E300 Electronic Overload Relay trips on a ground fault, the:
•
TRIP/WARN LED flashes a red 3-short blink pattern
•
Bit 2 in Current Trip Status (Parameter 4) sets to 1
Ground Fault Inhibit Time (Parameter 242)
Default Value
0
Minimum Value
0
Maximum Value
250
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
Seconds
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Function
X
Trip Present
X
Warning Present
X
Invalid Configuration
X
Current Present
X
Ground Fault Current Present
X
Voltage Present
X
Emergency Start Enabled
X
DeviceLogix Enabled
X
Feedback Timeout Enabled
X
Operator Station Present
X
Voltage Sensing Present
X
Internal Ground Fault Sensing
Present
X
External Ground Fault Sensing
Present
X
PTC Sensing
X
Ready
Reserved
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...
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