12
NT539
NT539
STEP
PRESS
EFFECT
PRESS
NOTES
1
v
Keep PRG key pressed until PRG led turns on. After PRG
indication, the transformer (or coils) number that you want
to check appears. On “channel” display
appears NTR
2
Set the desired number (1-2-3)
Default 3
3
ALARM threshold for CH 1-2-3 is displayed, TR1
Reference to TR1
4
Set the desired threshold
Default 90°C
5
TRIP threshold for CH 1-2-3 is displayed, TR1
Reference to TR1
6
Set the desired threshold
Default 119°C
7
FAN YES/NO is displayed, TR1
Forced ventilation
command.
Reference to TR1
8
Select desired option YES/NO
Default YES
9
°C ON is displayed, TR1
FAN turning on
10
Set the desired threshold
.
Default 70°C
11
°C OFF is displayed, TR1
FAN turning off
12
Set the desired threshold
Default 60°C
Repeat steps from 3 to 12 to program TR2 and TR3
thresholds (if enabled at point 2)
13
D
isplay shows FCD <> “datum”
Fault for temperature fast
increase (°C/sec)
14
Set the desired value
(see page 16)
Default No
no = excluded function
from No to 30 °C/sec
15
Display shows HFN (only if FAN YES)
Fan cyclic test for 5 minutes
each “n” hours
16
Set the desired number of hours
Default NO
no= disabled function
17
Display shows
REL
Select outputs relays
common or independent
18
Select desired option
Set COM or IND
Default COM
PROGRAMMING
