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Rockwell Automation 592- E300 Overload Relay User Manual User Manual

Page 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.

If 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
Protection 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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