5
Instruction Booklet
IB0191004EN
Effective June 2020
EAFR-110PLV current and arc light
sensor relay user manual
EATON
www.eaton.com
3. Operation and configuration
3.1 LED indicator functions
The EAFR-110PLV contains 20 indication LEDs. A user definable
text list can be slid in under the label pocket for identifying each
LED function (except POWER and ERROR LEDs). LEDs are located
at the front plate of the relay for clear viewing without a need for
opening doors.
During power up, the relay performs a LED-test. All LEDs are turned
on for two seconds and then off. Only the blue POWER LED will
remain on. After powered up, the relay will go into the protection
mode in 50 ms even while the LED test is being performed. During
normal operation, only the blue power LED is on.
All current measuring channels (IL1, IL2, AND IL3, and Ig) have
indication LEDs. When any channel exceeds the set threshold value,
the indication LED is turned on until a manual reset is performed. In
an open CT condition, the corresponding current channel indicator
and the ERROR LED will be blinking.
The sensor LEDs are off during the inactive condition. If the arc
sensor is activated, the corresponding sensor channel LED will turn
on if the activation is longer than 1.5 ms. The sensor LED activation
function is latched (steady light). To clear the LED the “SET” button
should be pressed.
In the case of loose sensor wire or configuration mismatch (new
sensor attached without running auto-configuration system setup,
see Section 3.3.1) situation, the corresponding LED for that sensor
will start flashing and the ERROR LED will activate.
The Binary I/O LEDs are indicating the I/O-line status. If any of the
lines become active for more than 1.5 ms, the corresponding LED
will illuminate (latch).
In a trip situation, the corresponding trip LED will illuminate. Trip
outputs are controlled by dipswitch settings (see Section 3.6).
All activation and trip indication LEDs are latched, even if the
dipswitch setting is in the non-latched mode. They have to be
cleared by pushing the “SET” button.
LED indications are stored in non-volatile EPROM memory for iden-
tifying the trip information in case the auxiliary power is lost. When
re-powering the relay after power supply loss, the actual LED status
can be visualized from the front of the relay.
3.2 LED operation quick guide
Table 1 describes the function of each indicator LED on the front of
the EAFR-110PLV relay.
