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There are 2 to 4 red leds for checking the state of the protections: the number of leds depends on the way the relay has been
confi gured and on the protections installed.
The led of protection L can also come on in the orange colour, thereby providing further information.
All the led combinations and the corresponding information are given in the table below.
Type of information
TC: Error or disconnected
CS: Error or disconnected
Rating Plug: Error or Installa-
tion not performed
Protection timing alarm
(1)
Last trip
(1)
Test button pressed and no
(2)
failure detected
(3)
Hardware Trip
L prealarm
Confi guration error
(5)
Settings inconsistency
Normal operation of the relay
(6)
(Alive LED ON)
(1) The led of the protection that has tripped or is being timed comes on to display the information. If it is the last trip, the led
remains on for 2 sec or with fi xed light if power source is external (from PR030/B).
(2) The information is displayed with all the leds on for as long as the test button remains depressed, or for 2 seconds if it is
pressed once.
(3) If enabled, the hardware trip causes the CB to open within 1 sec. It activates in the case of "Cs Error" or "Rating plug Error",
or when the protection of Ne is "ON" in the 3P circuit-breaker without Ne ext (wiring error).
The cause of tripping (CS Error, Rating Plug Error) is displayed in the presence of Vaux and/or PR030/B (connected during
the event).
The generic "Hw trip" signal remains in the absence of Vaux and/or PR030/B and is displayed by pressing the "I-test" key.
(4) Orange L led and red I led on.
(5) The values entered differ from those stored. Therefore, the relay must be installed (see par. 12.7).
(6) In the absence of other information, correct operation of the unit is signalled 3 s after the unit itself has been powered. The
"normal relay operation" signal can be disabled in units BT030-USB, Ekip T&P and PR010/T but in this case, the unit on signal
(Alive LED OFF) will no longer be active.
(7) see par. 12.4.1.
(8) see par. 12.4.
WARNING: the leds only function when the relay is on: make sure that the minimum power supply conditions have been
complied with in order to read the signals.
12.3.3. Rating Plug
The rating plug defi nes the rated current In, which is essential for regulating the protections. This is
because the regulation of all the protections refers to In (e.g.: I1= 0.4 xIn).
The rating plug is installed on the relay on a dedicated front connector and is available to the user.
A relay can be equipped with various Rating Plug models, up to the value Iu (uninterrupted rated current
Iu of the CB given on the rating plate of the front guard).
Example: CB E1B800 has Iu= 800 A, and can be fi tted with a rating plug with In 800A.
The module is interchangeable, with the relay off and the CB open.
The relay continuously checks for the presence of the rating plug and signals its absence or any assembly errors.
WARNING: Replacement of the rating plug with the relay on or the CB closed could lead to faulty relay operation or
undesired opening of the CB.
12.3.4. iTest button
The itest button can be used for different functions:
Model
L6555
Flashing
slowly
Flashing fast (2Hz)
(0,5Hz)
All LEDs
All LEDs
.
LED fl ashing
with two 0.5 sec
pulses every 2 sec
Single LED
All LEDs
Apparatus
Doc. No
LED fl ashing
with one
LED on permanently
pulse every
3 sec
LED
LED
All LEDs
Emax
1SDH000460R0002
Single LED
(4)
Scale
Page No
39/74
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