User Manual

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 13
Product Overview Chapter 1
Parameter Monitoring
The E3 Overload Relay allows the user to monitor information on various
parameters over the DeviceNet™ network.
Current-Based Operational Data
Refer to Chapter 6 for further information.
Diagnostic Parameters
Refer to Chapter 6 for further information.
Voltage Parameters
Refer to Chapter 7 for further information.
Power Parameters
Refer to Chapter 8 for further information.
Current-Based Operational Data Unit of Measure
Individual phase currents Amperes
Average current Amperes
Average current % of motor FLC
Percentage of thermal capacity utilized %
Current imbalance percentage %
Ground fault current (EC2, EC3, and EC5 only) Amperes
• Device Status
• Trip Status
• Warning Status
• Time to an overload trip (in seconds)
• Time to reset after an overload trip (in
seconds)
• History of the past five trips and warnings
• Diagnostic data at the time of a trip
• Voltage range
• Phase rotation
• Voltage warning status
• Voltage unbalance
• Voltage frequency
• Power range
• Reactive power
• Apparent power
• Power factor
• Power consumed