MC20-CEI
Doc. N°
MO-0431-ING
Microelettrica Scientifica S.p.A. - Copyright 2009
FW 1080.36.03.X
Date 18.11.2011
Rev.
3
Pag. 21
of 35
9. Signalizations
Four signal leds are available on the Front Face Panel:
a)
Green
LED
C/B
OPEN
Illuminated when C/B open status is detected.
(Digital Input D3 Open)
b)
Red
LED
C/B
CLOSED
Illuminated when C/B close status is detected.
(Digital Input D3 closed)
Flashing when Breaker Failure is detected.
c)
Red
LED
TRIP
(*)
Flashing when a timed function starts to operate.
Illuminated when any function is tripped; reset takes places by pressing the reset
button.
d)
Yellow
LED
PWR/
I.R.F.
Illuminated during normal operation when Power Supply is ON.
Flashing when a Relay Internal Fault is detected.
(*) When any protection function is tripped besides the Led which gives the general trip indication.
The display shows the function that caused the tripping:
LastTrip
steady
“Cause”
blinking
10. Keyboard
Enter
Give access to any menu or convalidate any programming changement.
Reset
Return from the actual selected menu to the former menu.
Select -
Scrolls variables available in the different menus or increases/decreases setting values.
