Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 92)

92 Rockwell Automation Publication 193-UM002I-EN-P - December 2011
Chapter 3 Protective Trip & Warning Functions
• outputs will be placed in their Protection Fault state (if so programmed).
Starts/Hour, Parameter 99, allows the installer to limit the number of starts per
hour. It is adjustable from 1…120.
Starts Interval, Parameter 100, allows the installer to limit the time between
starts. It is adjustable from 0…3600 seconds.
Starts Available, Parameter 97, reports the number of starts currently available
based on the Start Inhibit settings and the actual motor starting events.
Time to Start, Parameter 98, reports the amount of the time remaining until a
new start can be effected. If the Time to Start time has elapsed, it will report zero
until the next Blocked Start trip occurs.
Preventive Maintenance Flags
The E3 Overload Relay offers preventive maintenance flags in the Warning Status
parameter based on the number of start cycles or the number of operating hours
(motor current must be greater than 30% of the minimum Full Load Current
(FLA) setting). These can be used to send the user a warning message that the
number of starts or number of operating hours has been reached and that it is
time to perform preventive maintenance. The preventive maintenance warning
function can be set by PM - # Starts and/or PM – Oper. Hours.
PM - # Starts, Parameter 101, allows the installer to set a number of starts. It is
adjustable from 0…65,535.
The E3 Overload Relay will give a PM - # Starts warning indication when:
• PM - # Starts warning is enabled and
• Starts Counter parameter is equal to or greater than the value set in the PM
- # Starts parameter.
Upon a PM - # Starts warning, the:
• TRIP/WARN LED will flash an amber 14-blink pattern,
• bit 13 in Warning Status, Parameter 15, will set to “1”, and
• bit 1 in Device Status, Parameter 21, will set to “1”.
IMPORTANT The Protection Fault State of OUT A and OUT B is defined by:
• OUTA Pr FltState, Parameter 65
• OUTA Pr FltValue, Parameter 66
• OUTB Pr FltState, Parameter 71
• OUTB Pr FltValue, Parameter 72
IMPORTANT The E3 Overload Relay will report 0 A or 0% FLA if the current is below
30% of the minimum FLA setting.