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in daisy- chain with FBI cards of suite PDPs and DCDP. W21 to W23 and
W31 to W33 are to be shorted on FBI card according to MCBs used.
9.2.2.
IOP-PDP Cabling
This is to be done as shown in Fig. 10.1 (c)
9.3.
OMA PANEL ASSEMBLY INSTALLATION
OMA panel assembly is to be installed in OMC room to provide audio & visual
indications in the event of any power failure in Power Room, Switch Room, IOP
Room and Invertors. This facilitates exchange maintenance staff for its corrective
action. Here installation procedure of OMA panel assembly and cabling is
explained.
9.3.1.
Material & Tools Required
S.NO.
1.
2.
3.
4.
5.
6.
9.3.2.
OMA Mounting
The OMA panel is wall mountable. The front cover of OMA panel is opened
with the help of four screws provided as shown in Fig. 9.3. Two holes are
provided on the rear side of the panel for fixing on the wall. With the help of
screws and wooden plugs the OMA panel is fixed on the wall. Another two
holes are provided to access mounting screws for tightening the screws from
the front. These holes are plugged with rubber grommets after tightening the
screws.
Whenever any fault occurs in power plant or in any of the inverters or in
switching equipments, it gets -48V GND to raise audio-visual alarm. Cables
coming from the two inverters, power plant room and IOP-PDP (FBI card
J32) are terminated on the terminal block TB1 of OMA panel. Details of
connections in OMA TB1 as per as follows:-
INSTALLATION MANUAL
Material & Tools required
OMA
Screws
Wooden Plugs
Rubber Grommets
Drilling Machine
Screw-Driver
IOP - PDP AND OMA INSTALLATION
Qty.
1
4
4
4
1
1
95
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