Woodward 8446-1019 PLC thyristor module

Woodward 8446-1019 PLC thyristor module

Technical data of product parameters

A system resp. the8446-1019. equipment rack can be equipped
with one or two redundant auxiliary d.c. supply units (DC/DC
converters). Fig. 2.10 shows the auxiliary d.c. supply system with
either two 216NG61, 216NG62 or 216NG63 units.
All electronic units and I/O modules have been designed to operate with redundant auxiliary d.c. supplies. As long as one of
the two 24 V supplies is available, the correct operation of all the
equipment’s functions is assured. The B448C parallel bus has
two redundant auxiliary d.c. supply lines designated USA and
USB and the redundant supplies for the electronic units are
achieved by connecting them to both. The 216NG6. units also
provide the auxiliary d.c. supply for the I/O modules. The corresponding auxiliary voltage UP (24 V)/ZP (0 V) is distributed tothe individual I/O modules via a terminal block.
The SPA BUS interface is always available. The LON and MVB
protocols are transferred by PC cards.
The supply to the memory in the 8446-1019 is maintained in the
event of an interruption by a gold condenser so that the event list
and disturbance recorder data remain intact. The disturbance
recorder data can be read via either the interface on the front of
the 216VC62a or the object bus. The data can be evaluated
using the “EVECOM” evaluation program. The internal clock of
the RE. 216 can be synchronised via the object bus interface of
SMS/SCS systems or by a radio clock.The connections to the primary system are made via the two 8446-1019
heavy-duty terminals 10 and 15 of Type UHV which are
designed for spade terminals. There are four Type UK35
universal terminals 11 to 14 which are used for the internal
wiring between the two heavy-duty terminals.
Depending on the version, the four windings must be connected
to the corresponding universal or heavy current terminals.
Should the version supplied not be the correct one, the
connections from the windings to the terminals must be changed
as shown in the following diagrams.8446-1019
In the case of versions M12, M22, M13 and M23, KB-15 shorting
links must be fitted to the universal terminals. How this is done
can be seen from the diagram marked “Shorting links” at the end
of this Section.

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