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Module 96-PA-RCM / 96-PA-RCM-EL
ATTENTION
Damage to the device/your system due to short
circuit!
Inadequate insulation of the operating equipment
at the analog inputs with respect to the supply cir-
cuits can lead to damage of your device or system.
·
Ensure reinforced or double insulation with
respect to the supply circuits!
·
Observe the general safety information in
„2.8 Safety information for analog inputs“ on
6.10 Analog inputs I5 and I6/U6 – DC power
As an option for measuring the residual current,
the basic device with module also permits use of
the analog inputs I5 and I6 (U6) for a DC power
measurement.
In a DC power measurement, the current channel
I6 effectively becomes a voltage measurement
input, U6. When a residual current transformer
of the type CT-AC/DC Type B+ is connected, it
converts an input voltage into an output current
signal. The current signal changes proportionately
to the measured value of the input variable.
For a DC power measurement, the basic device
with module supports input current signals with
the values
·0 ... 20 mA
·4 ... 20 mA
6.11 Connection example - DC power
measurement
Fig. Connection variant, DC power measurement via current
transformer and DC voltage sensor
I5
I6/U6
I
U
I
I
Consumer
Voltage
source
4..20 mA
4..20 mA
-
+
-
+
