184
Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 6
Protective Trip and Warning Functions
•
L3 Line Loss Warning is enabled
•
L3 Line Loss is activated via the appropriately programmed digital input
(see Input Assignments, Parameters 196…201, in
•
Line Loss Inhibit Timer has expired
•
L3 Percent FLA (Parameter 49) is equal to 0%
When the L3 Line Loss Warning conditions are satisfied, the:
•
TRIP/WARN LED flashes a yellow 16-short blink pattern
•
Bit 15 in Current Warning Status (Parameter 10) sets to 1
•
Bit 1 in Device Status 0 (Parameter 20) sets to 1
•
Any relay outputs configured as a Warning Alarm close
Voltage-based Protection
The E300 Electronic Overload Relay can digitally monitor the voltage supplied
to an electric motor to help protect against poor voltage quality. You can prevent
a contactor from energizing if the voltage is either too high, too low, or wrong
rotation. The following E300 Sensing Modules provide voltage monitoring
capabilities.
Table 221 - Voltage Capabilities
This voltage information is used for the following protective trip and warning
functions:
•
Undervoltage trip/warning
•
Overvoltage trip/warning
•
Voltage imbalance trip/warning
•
Phase rotation mismatch trip
•
Under frequency trip/warning
•
Over frequency trip/warning
Voltage Trip Enable (Parameter 184) and Voltage Warning Enable (Parameter
190) are used to enable the respective voltage-based protective trip and warning
functions.
IMPORTANT
The L3 Line Loss Warning function does not include a time delay feature. Once
the Line Loss Inhibit Timer has expired, the L3 Line Loss Warning indication is
instantaneous.
Catalog Number
Measurement Method
L-L Voltage Trip/Warning Range
193-ESM-VIG-__-__
Internal
20…800V
592-ESM-VIG-__-__
Internal
20…800V
193-ESM-VIG-30A-CT
External
20…6500V
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: ......