User Manual

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 93
Protective Trip & Warning Functions Chapter 3
PM – Oper. Hours, Parameter 102, allows the installer to set a number of hours
of operation. It is adjustable from 0…65,565 hours.
The E3 Overload Relay will give a PM – Oper. Hours warning indication when:
• PM – Oper. Hours warning is enabled, and
• Elapsed Time parameter is equal to or greater than the value set in the PM
– Oper. Hours parameter.
Upon a PM – Oper. Hours warning, the:
• TRIP/WARN LED will flash an amber 15-blink pattern,
• bit 14 in Warning Status, Parameter 15, will set to “1”, and
• bit 1 in Device Status, Parameter 21, will set to “1”.
Queue Clearing
Using the Clear Queue, Parameter 104, the E3 Overload Relay provides the
capability to simultaneously clear/reset the:
• Trip Logs, Parameters 16…20,
• Warning Logs, Parameters 90…94,
• Starts Counter, Parameter 96, and the
• Elapsed Time Parameter 95.
If using the Preventative Maintenance Flags, the user will want to reset the Starts
Count and Elapsed Time after preventative maintenance has been performed.