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. 10
of 35
2.2.5 - Funzioni (
Functions and Settings
)
2.2.5.1 - I> – First overcurrent protection level
Stato
(Status)
→
Abilit.
[Disabl.(
Disable
) / Abilit.(
Enable
)]
Opzioni
(Options)
→
TCC
D
[D / A / B / C / MI / VI / I / EI / SI ]
→
BI
Disab.
[Disabl.(
Disable
) / Abilit.(
Enable
)]
Livelli
(Trip Level)
→
I>
0.5
In
(0.10
÷
4.00)
step
0.01
In
Tempi
(Timer)
→
tI>
1.00
s
(0.05
÷
60.00)
step
0.01
s
Stato
(Status)
:
If disable the function is disactivated
TCC
:
Time current curves
D
= Independent Definite Time
A
= IEC A Inverse
B
= IEC B Very Inverse
C
= IEC C Extremely Inverse
MI
= IEEE Moderate Inverse Curve
VI
= IEEE Very Inverse Curve
I
= IEEE Inverse Curve
EI
= IEEE Extremely Inverse Curve
SI
= IEEE Short Inverse Curve
BI
:
Operation controlled by Blocking Digital Input
I>
:
Trip level (limited to 40 times In)
tI>
:
Trip time delay
2.2.5.2 - I>> - Second overcurrent protection level
Stato
(Status)
→
Abilit.
[Disabl.(
Disable
) / Abilit.(
Enable
)]
Opzioni
(Options)
→
BI
Disab.
[Disabl.(
Disable
) / Abilit.(
Enable
)]
Livelli
(Trip Level)
→
I>>
0.9
In
(0.50
÷
40.00)
step
0.01
In
Tempi
(Timer)
→
tI>>
0.25
s
(0.05
÷
60.00)
step
0.01
s
Stato
(Status)
:
If disable the function is disactivated
BI
:
Operation controlled by Blocking Digital Input
I>>
:
Trip level (limited to 40 times In)
tI>>
:
Trip time delay
