Function
12
RCMB103_D00044_00_M_XXEN/08.2013
2.6.4
Self test: Reset and subsequent calibration of the RCMB103
X10
Switch
ing
on the test curr
ent
in
the test winding (first sequence).
Reset:
E
n
d of residual current measuremen
t.
Cur
rently measured residual cu
rrent
remains st
ored.
T1
> 0
.53
s
X10
=
HIGH
for
50
μs...100 μs
Self test: Reset and calibration.
T2
50
...10
0
μs
X12
X1
~
~
T4
4.
6
s
T3
1
0
..
.1
1 m
s
~
~
~
~
~
~
~
~
~
~
~
~
Begin of calibration pro
cess.
End of
calibration process.
Start of residual curre
nt measure
ment.
~
~
HI
G
H
LOW
LOW
HIGH
t2
~
~
T5
0.1 s
T6
0.15 s
T7
0.85 s
T9
> 5
ms
Measuring
time
for a chang
e of
the residu
al current.
Switching off the test current.
End of test current supply.
Enablin
g
for residu
al current
measure
ment.
Begin of the residual current
measurement process.
Begin of test current that causes a trip (second sequence).
T8
1 s
Tripped in less than 200 ms:
X12 = HIGH, X1 = 4.85 V
