Rockwell Automation Publication 193-UM015D-EN-P - February 2015
229
Protective Trip and Warning Functions
Chapter 6
•
Bit 1 in Device Status 0 (Parameter 20) sets to 1
•
Any relay outputs configured as a Warning Alarm closes
Under kVA Warn Level
Under kVA Warn Level (Parameter 405) allows you to define the apparent power
(kVA) at which the E300 Electronic Overload Relay indicates a warning. It is
user-adjustable from 0…2,000,000 kVA.
Table 280 - Under kVA Warn Level (Parameter 405)
Over kVA Trip
The E300 Electronic Overload Relay trips with an Over kVA indication if:
•
No trip currently exists
•
Over kVA Trip is enabled
•
Current is present
•
Voltage is present
•
Over kVA Inhibit Time has expired
•
The total apparent power (kVA) is greater than the Over kVA Trip Level
for a time period greater than the Over kVA Trip Delay.
If the E300 Electronic Overload Relay trips on an over apparent power (kVA),
the:
•
TRIP/WARN LED status indicator flashes a red 2-long / 8-short blink
pattern
•
Bit 7 in Power Trip Status (Parameter 6) 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
0.000
Minimum Value
0.000
Maximum Value
2,000,000.000
Parameter Type
DINT
Size (Bytes)
4
Scaling Factor
1000
Units
kVA
IMPORTANT
The Under kVA Warning function does not include a time delay feature. Once
the Under kVA Inhibit Time has expired, the Under kVA 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...
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