Function
15
RCMB103_D00044_00_M_XXEN/08.2013
2.7 Values outside the permissible measuring range
Fig. 2.6: Behaviour of the outputs when the values are outside the measuring range
If the residual current exceeds the measuring range (residual current
≥
6 mA DC), the residual
current monitoring module will disable the open collector output X12 (HIGH) after time T1 has
elapsed. The disconnection time is dependent on the value of the residual current (see chapter 2.8).
If the residual current monitoring module detects values outside the measuring range, the analogue
output X1 will be set to 4.85 V. As soon as the residual current drops to 3.5 mA DC, the output X1 will
remain at 4.85 V for approx. 1.2 s before the currently measured value will be displayed. In this way,
the shutdown can be reliably evaluated by the charging control electronics.
Residual current
I
Δ
n
Switching output X12
Voltage output X1
4.85 V
6 mA
T2 = 1.2 s
~~
0.15 V
~~
~~
T1
Connecting residual current
I
Δ
n
≥ 6 mA
HIGH
LOW
T1: Switch-off time (X12)
depending upon the residual current
