Rockwell Automation Publication 193-UM015D-EN-P - February 2015
153
Protective Trip and Warning Functions
Chapter 6
Jam Warn Level
Jam Warn Level (Parameter 254) allows you to define the current at which the
E300 Electronic Overload Relay indicates a warning. It is user-adjustable from
50…600% for the FLA Setting (Parameter 171).
Table 188 - Jam Warning Level (Parameter 254)
Underload Protection
Motor current less than a specific level may indicate a mechanical malfunction in
the installation, such as a torn conveyor belt, damaged fan blade, broken shaft, or
worn tool. Such conditions may not harm the motor, but they can lead to loss of
production. Rapid underload fault detection helps to minimize damage and loss
of production.
The E300 Electronic Overload Relay can monitor for this condition with its
Underload Trip and Warning function to detect for a rapid underload fault to
minimize damage and loss of production.
Underload Inhibit Time
Underload Inhibit Time (Parameter 255) allows you to inhibit an underload trip
and warning from occurring during the motor starting sequence. It is adjustable
from 0…250 s.
Table 189 - Underload Inhibit Time (Parameter 255)
Default Value
150
Minimum Value
50
Maximum Value
600
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
1
Units
%FLA
IMPORTANT
The Jam Warning function does not include a time delay feature. Once the Jam
Inhibit Time has expired, the Jam Warning indication is instantaneous.
Default Value
10
Minimum Value
0
Maximum Value
250
Parameter Type
USINT
Size (Bytes)
1
Scaling Factor
1
Units
Seconds
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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