51
NV10P - Manual - 01 - 2015
CHARACTERISTICS
All alarm and/or trip elements can be enabled or disabled by setting
ON
or
OFF
the
ThALx Enable
e
Th>x Enable
parameters inside the
Set \ Profi le A(or B) \ Thermal protection with RTD thermo-
metric probes - 26 \
PTx Probe \ ThALx Alarm (ThALx Trip)
where x = 1...8
.
Each trip threshold (Th>x) may be associated with the breaker failure (BF) function by setting
ON
the
Th>xBF
parameters inside the
Set \ Profi le A(or B) \ Thermal protection with RTD thermometric
probes - 26 \
PTx Probe \ ThALx Trip
where x = 1...8.
[1]
Note 1 The common settings concerning the Breaker failure protection are adjustable inside the
Breaker Failure - BF
menu.
Fun-F26.ai
T°
≤
+2 4 5 . 0 ° C
T°
>
Pt
x
>
Pt
x
Pt1
Pt2
Pt3
Pt4
Pt5
Pt6
Pt7
Pt8
0
T
TR
IP
P
ING
M
ATR
IX
(LED
+R
EL
AY
S
)
T°
>
Th
ALx
Pt10 0 -
x Trip
Pt10 0 -
xAlarm
t
Th
>
x
t
ThALx
BF Enable (ON
≡
Enable)
Pt100 OK
Pt100 FAULT
Th>xBF
TOWARDS BF LOGIC
Th>x BF_OUT
TOWARDS DIAGNOSTIC
Pt
x
> Diagnostic
TRIP
&
&
&
T°
≥
- 4 9 . 0 ° C
0
T
ThALx-K
ThALx-L
Th>x-K
Th>x-L
Th
ALx
Th
>
x
t
ThALx
t
Th
>
x
Logic diagram for thermal protection with RTD thermometric probes (26)