Fuse And Alarm Panel (P/N 870-1606-Xx/870-2320-Xx) - Oracle EAGLE Installation Manual

Figure 5-7
Ensure the board is seated properly and tighten the two screws to secure the board.
5.
The Shorting Board is now in the normal mode of operation.
6.

5.1.3 Fuse and Alarm Panel (P/N 870-1606-xx/870-2320-xx)

The FAP P/N 870-1606-xx can be installed in standard frames. The FAP P/N 870-2320-xx
can be installed in heavy duty frames.
The FAP contains an alarm board, two diode boards, and a jumper board. These boards are
located at the front center of the FAP. The fuse holders are to the left and right of these
boards as shown in
The alarm board contains a FUSELED to indicate a failed fuse (for either bus A or B) and
LEDs to indicate Critical, Major, and Minor alarms generated by the system that are
applicable to that frame which the FAP is installed.
There are two diode boards in the FAP, one for bus A and one for bus B. Each diode board
contains power diodes and circuitry which allow one bus to pick up the entire load when there
is a loss of input power on the other bus. An LED indicates the input power state to the FAP.
The LED is green when input power is applied to that bus of the FAP and is red when there is
no input power to that bus of the FAP.
The Maintenance (Jumper) board allows the removal of one or both diode boards without
taking down the system. The Jumper board has two connectors and a connector plug. During
normal operation, the connector plug is seated on the first connector. For maintenance
operation, the jumper board has to be removed and the connector plug moved to the second
connector. In the maintenance position, the connector plug connects both A and B power
feeds to the fuse panels so one or both diode boards can be safely removed. The OP/
MAINTLED is green when the Jumper board is in normal operational mode and is red when
in the maintenance mode of operation. Refer to Maintenance.
Figure 5-8
(P/N 870-1606-xx/870-2320-xx).
Shorting Board Faceplate, Normal Mode
Note:
The Shorting Board LED is off and the fuse alarm LEDs turn green.
Figure 5-8.
and Table 5-6 describes the front panel configuration of the fuse and alarm panel
Chapter 5
Fuse and Alarm Panels
5-7