Sices HS 315, Техническое руководство

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52 Technical Handbook
Single phase / three-phase selection depends on the settings of parameters P.9611 e P.9612.
It is required to configure the nominal AC voltage (P.0102) and frequency (P.0105). It is also
required to configure the voltage transformers ratio, using P.0103 and P.0104.
Voltage measurement are performed as True RMS.
Maximum 74.5 Vac can be applied between terminals and GND.
The controller uses phase L1 (terminal JG-3) to measure the frequency of the auxiliary source.
AC voltages and frequency are shown on page M.07. This page is hidden if auxiliary source
AC voltages are not connected to the controller.
The device, in three-phase connection, can function both with the neutral connection and
without it; selection is performed through the P.9614 parameter: the value 028 means that the
neutral line is connected to JG-4.
If the neutral is connected to the controller, the neutral voltage is measured in relation with
GND. The values of the V1-N, V2-N and V3-N phase voltages and the VN voltage of the neutral
in relation to GND for the auxiliary source are displayed on page M.08. If the neutral is not
connected to the controller, then page M.08 will not be displayed.
HS315 can measure the DC voltages of the generator, of the plant battery, of the loads and of
the auxiliary source. The controller performs all the measurement in differential mode between
two terminals: the wiring must ensure that the measured voltages are positive (even when the
positive of the plant battery is connected to GND).
Voltage measurement are performed as True RMS.
For DC measurement, the terminals of JH, JG and JQ connectors can be used. The terminals
of JQ must be used together to acquire a single DC voltage; the terminals of JH and JG,
instead, can be freely configured.
P.9635 allows the configuration of the function of JQ terminals; the following values can be
used to configure the measurement of a DC voltage:
Value Description
012 DC voltage for the auxiliary source
022 DC voltage for the generator
032 DC voltage for the battery
042 DC voltage for the loads
Other values for parameter P.9635 configure the terminals for other purposes. M/-
87.5 Vdc can be applied to JQ terminals.
For the connections to terminals JH and JG, instead, it is possible to select:
•
A “common negative” configuration (one terminal is used to acquire the negative
poles of all voltages, and other four terminals acquire the positive poles of the
voltages).
•
A “common positive” configuration (one terminal is used to acquire the positive poles
of all voltages, and other four terminals acquire the negative poles of the voltages).
•
A
“pure differential” configuration (two terminals are used for each DC voltage).
The first two modes allow to reduce the number of used terminals: they are suggested if part
of JH / JG terminals is used for the AC voltages of the auxiliary source / generator.