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Optional Module Installation
Figure 2.18 illustrates the wiring between the FACP's Secondary ANN-BUS and ANN-BUS devices.
Powering Both ANN-BUS Circuits Simultaneously
When simultaneously using the Primary and Secondary ANN-BUS circuits on the FACP, power can be shared from the Nonresettable
Power output on TB11. Alternately, one ANN-BUS can be powered by the Resettable Power output (TB11 Terminals 3 and 4) once it is
reconfigured as Nonresettable Power in panel programming. This provides the benefit of independently acting power-limiting for the
two ANN-BUS circuits.
Powering ANN-BUS Devices from an Auxiliary Power Supply
Figure 2.19 illustrates the powering of ANN-BUS devices from an auxiliary power supply such as the FCPS-24S6/8, when the total
ANN-BUS power requirements exceed the panel's DC Power Output capability.
ON
SW1
1 2 3 4 5 6 7 8
NFW-100X Manual — P/N LS10131-001NF-E:C 7/25/2018
ANN-BUS and power wiring are
supervised and power-limited
TB1
4 3 2 1
ANN-BUS Device
Figure 2.18 Secondary ANN-BUS wiring to ANN-BUS Device
OUT4
OUT3
OUT2
OUT1
- NAC4 +
- NAC3 +
- NAC2 +
- NAC1 +
TB2
AUX TBL
NO
NC
COM
TB5
8
7
6
5
4
3
2
1
3
2
1
JP1
J3
JP3
AUX -
10
AUX +
9
8
IN2-
7
IN2+
6
OUT1-
5
OUT1+
4
IN1-
3
IN1+
2
SYNC IN -
1
SYNC IN +
TB4
FCPS-24S6/8
Figure 2.19 Powering ANN-BUS Devices from FCPS-24S6/8
Secondary
ANN-BUS
Cut Ground Fault Detection jumper JP1
(FACP monitors for ground faults).
ANN-BUS and power wiring are
supervised and power-limited
-24 VDC
+24 VDC nonresettable
JP2
Primary
ANN-BUS
NFW-100X
24 VDC
+
-
nonresettable
NFW-100X
TB1
4 3 2 1
N-ANN-80
-
Installation
35
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