Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 140)

140 Rockwell Automation Publication 193-UM015B-EN-P - June 2014
Chapter 5 Protective Trip and Warning Functions
Table 127 - Over Voltage Trip Level (Parameter 361)
Over Voltage Warning
The E300 Electronic Overload Relay will indicate an Over Voltage warning if:
• No warning currently exists
• Over Voltage Warning is enabled
• Voltage is present
• Over Voltage Inhibit Time has expired
• The maximum phase voltage is equal to or greater than the Over Voltage
Warning Level
When the Over Voltage Warning conditions are satisfied, the:
• TRIP/WARN LED will flash a yellow 1-long / 2-short blink pattern
• Bit 1 in Voltage Warning Status (Parameter 11) will set to 1
• Bit 1 in Device Status 0 (Parameter 20) will set to 1
• Any relay outputs configured as a Warning Alarm will close
Over Voltage Warn Level
Over Voltage Warn Level (Parameter 362) allows the user to define the voltage at
which the E300 Electronic Overload Relay will indicate a warning. It is user-
adjustable from 0…6553.5 volts.
Table 128 - Over Voltage Warn Level (Parameter 362)
Default Value 500.0
Minimum Value 0.0
Maximum Value 6553.5
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 10
Units Volts
IMPORTANT The Over Voltage Inhibit Time starts after a phase voltage transitions from 0V
to 20V L-L. The E300 Electronic Overload Relay does not begin monitoring for
an over voltage condition until the Over Voltage Inhibit Time expires.
Default Value 490.0
Minimum Value 0.0
Maximum Value 6553.5
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 10
Units Volts