Chapter 15 – Installation
Connection diagram for 1 current element connection
1-element connection: Connection diagram of 1
element (phase A, B or C).
1-element connection: Connection diagram of 1
element (neutral).
In all cases, the equipment will compute the line current and the neutral current.
5.10 ANALOG DC TRANSDUCER INPUTS ± 10 V
The RA331, RA332 and RA333 modules have up to 8, 16 or 8 analog inputs, respectively, which can be
configured for measurement of voltages of DC transducers of -10 V to +10 V. All channels are identified of
101 to 108 for the RA331 and RA333, and 101 to 116 for the RA332.
Each analog input has three terminals: positive voltage, positive current and negative terminal which are
used for the current and for the voltage, as shown in Figure 120. To define if the driver will measure voltage
of a DC transducer it is necessary to select an internal jumper in the module.
Figure 120: Analog Input Terminals
In order to configure the analog input to measure voltage signals of DC transducers, remove all connectors
and cables which are connected to the module and remove the back panel of the RA331, RA332 or RA333,
removing the 12 screws of the panel and the screw of the protective grounding, as shown in Figure 121.
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