MICROENER IM30-SA, Operation Manual

Page: 7 / 25

IM30-SA
Doc. N° MO-0089-ING
Rev. 1 FW: 1.01
Pag. 7 of 25
Copyright 2010 - Microener
4. SIGNALIZATIONS
Eight signal leds (normally off) are provided:
a) Red LED I>

Flashing when measured current overcomes the set trip level [I>].

Illuminated on trip after expiry of the set trip time delay [tI>].
b) Red LED I>>

Same as above related to [I>>], [tI>>].
c) Red LED
Io> 
Same as above related to [O>], [tO>].
d) Red LED Io>>

Same, as above related to [O>>], [tO>>].
e) Yellow LED
PROGRAM/
BLOCK FAIL

Flashing during the programming of the parameters or in case

Illuminated on Internal Relay Fault.
f) Red LED
S.E.F.

Flashing when measured current overcomes the set trip level [I>].

Illuminated on trip after expiry of the set trip time delay [tI>].
g) Red LED I2>

Flashing when measured current overcomes the set trip level [I>].

Illuminated on trip after expiry of the set trip time delay [tI>].
h) Yellow LED
BLOCK ACTIVE
BRKR FAIL

Flashing when a blocking signal is present at the relevant input
terminals.

Lit-on when the BREAKER FAILURE function is activated.
The reset of the leds takes place as follows:

Leds a,b,c,d,g

From flashing to off, automatically when the lit-on cause disappears.

From ON to OFF, by "ENTER/RESET" push button only if the
tripping cause has disappeared.

Leds e,f,h

From ON to OFF, automatically when the lit-on cause disappears.
In case of auxiliary power supply failure the status of the leds is recorded and reproduced when power
supply is restored.
I> I>> Io> Io>>
BLOCK ACTIVE
BRKR FAIL PROG/ S.E.F. I
2
>
I.R.F.
a b c d
e
f
g h