TB MRIK3 12.00 E
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5.5
Fault recorder
The
MRI3
is equipped with a fault recorder (see chapter
3.7). Three parameters can be determined.
5.5.1
Number of the fault recordings
The number of max. recordings requested has to be de-
termined in advance. There is a choice of (1)* 2, (3)*
4 or (7)* 8 recordings and dependent on this the dura-
tion of the individual fault recordings is defined, i.e.
(1)* 2 recordings for a duration of 8 s (with 50 Hz)
(6.66 s with 60 Hz)
(3)* 4 recordings for a duration of 4 s (with 50 Hz)
(3.33 s with 60 Hz)
(7)* 8 recordings for a duration of 2 s (with 50 Hz)
(1,66 s with 60 Hz)
* is written over when a new trigger signal arrives
5.5.2
Adjustment of trigger occurences
There is a choice between four different occurences:
P_UP (PickUP)
Storage is initiated after recognition
of a general activation.
TRIP
Storage is initiated after a trip has
occured.
A_PI (After Pickup) Storage is initiated after the last
activation threshold was fallen
short of.
TEST
Storing is activated by simultaneous
actuation of the keys <+> and <->.
During the recording time the
display shows “Test”.
5.5.3
Pre-trigger time (T
pre
)
By the time T
pre
it is determined which period of time
prior to the trigger occurence should be stored as well.
It is possible to adjust a time between 0.05 s and 8 s.
With keys <+> and <-> the values can be changed
and with <ENTER> be saved.
5.6
Adjustment of the clock
When adjusting the date and time, LED
!
lights up.
The adjustment method is as follows:
Date:
Year
Y=00
Month
M=00
Day
D=00
Time:
Hour
h=00
Minute
m=00
Second
s=00
The clock starts with the set date and time as soon as
the supply voltage is switched on. The time is safe-
guarded against short-term voltage failures (min. 6 min-
utes).
Note:
The window for parameter setting is located behind the
measured value display. The parameter window can be
accessed via the <SELECT/RESET> key.
