Allen-Bradley E300 - Chapter 8; Device Monitor; Percent Thermal Capacity Utilized; Introduction

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 487
Chapter 8
Metering and Diagnostics
Introduction
This chapter provides detailed information about the metering and diagnostic
information that the E300™ Electronic Overload Relay generates. The metering
and diagnostic functions are organized into seven sections:
• De
vice Monitor
• Current Monitor
• Voltage Monitor
• Power Monitor
• Energy Monitor
• Trip/ Warning Hi stor y
• Trip S nap sho t
Device Monitor
The E300 relay's device monitor diagnostics provides information on the status
of the device, which includes:
• The
rmal overload protection
• Trip and warning protection functions
• Digital inputs and relay outputs
• Operator station
• Hardware options
• Time and date
Percent Thermal Capacity Utilized
Percent Thermal Capacity Utilized (Parameter 1) reports the calculated percent
thermal capacity utilization of the motor being monitored. When the percent
thermal capacity utilization equals 100%, the E300 relay issues an overload trip.
Table 420 - Percent Thermal Capacity Utilization (Parameter 1)
Default Value 0
Minimum Value 0
Maximum Value 100
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units %