Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 126

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126 Rockwell Automation Publication 193-UM015B-EN-P - June 2014
Chapter 5 Protective Trip and Warning Functions
Table 113 - Line Loss Inhibit Time (Parameter 285)
L1 Line Loss Trip
The E300 Electronic Overload Relay will trip with a L1 Line Loss indication if:
No trip currently exists
L1 Over Current Trip is enabled
L1 Line Loss is activated via the appropriately programmed digital input
(see
Input Assignments, Parameters 196-201, in Chapter 3)
Line Loss Inhibit Timer has expired
L1 Percent FLA (Parameter 47) is
equal to 0% for a time period greater than the L1 Line Loss Trip Delay.
I
f
the E300 Electronic Overload Relay trips on a L1 Line Loss, the:
TRIP/WARN LED status indicator will flash a red 14-short blink pattern
Bit 13 in Current Trip Status (Parameter 4) will set to 1
Bit 0 in Device Status 0 (Parameter 20) will set to 1
Any relay outputs configured as a Trip Relay will open
Any relay outputs configured as a Control Relay will open
Any relay outputs configured as a Trip Alarm will close
Any relay outputs configured as a Normal Relay will be placed in their
P
r
otection Fault state (if so programmed)
Default Value 10
Minimum Value 0
Maximum Value 250
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units Sec
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