5
7.2 DIGITAL OUTPUTS
The instrument is equipped with two digital outputs.
The digital outputs can be used for pulse emission.
WARNING!
Before connecting or disconnecting
the digital outputs, be sure that the
instrument is not powered. The power
supply line, the measurement inputs
and any other voltage source must be
disconnected.
7.2.1 Digital outputs connection
The digital outputs can be used, for example,
for pulse emissions. The needed function is
programmed through instrument setup.
Maximum withstandable voltage: 50 Vd c
Maximum load current: 100 mA
WARNING!
The outputs are not protected against
overloads and short-circuits.
WARNING!
On request, the unit is supplied with
the digital outputs for wiring A, B, C
or D. Refer to the label on the left side
of the meter in order to identify its
configuration.
7.3 VOLTAGE AND CURRENT INPUTS
The basic instrument is provided with two selectable
wiring modes (3.4.3 and 1phase). On request, it is
also available the instrument provided with only
3.3.3 wiring mode (fixed).
WARNING!
Check:
if the instrument must carry out bi-directional measurements to obtain correct measurements, the 1.
connections must respect the polarities
the connections are made according to the diagrams in the following section, respecting the cyclic 2.
order of phases (important: L1 of the voltage input = L1 of the current input)
be sure to respect input and output polarities when using current transformers (CT)3.
before disconnecting current input the load power supply is cut off. If this is not possible, the secondary 4.
CT must be short-circuited
A) PNP wiring (10-50V)
B) NPN wiring (10-50V)
C) PNP wiring (5-50V)
D) NPN wiring (5-50V)
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