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MS-9200UDLS PN 52750:E1 01/27/09 27
1.8.7.1.3 Powering ANN-BUS Devices from Auxiliary Power Supply
Figure 1.4 illustrates the powering of ANN-BUS devices from an auxiliary power
supply such as the FCPS-24FS6/8, when the total ANN-BUS power requirements
exceed the panel’s DC Power Output capability.
1.8.7.2 ANN-BUS Device Addressing
Each ANN-BUS device requires a unique address (ID Number) in order to
communicate with the FACP. A 5-position DIP switch on each device is used to set
this address. The address set for these devices must also be programmed at the
FACP for the specific device (refer to the programming section titled "ANN-BUS
Options" on page 118).
A maximum of 8 devices can be connected to the FACP ANN-BUS communication
circuit. Device addresses do not need to be sequential and can be set to any number
between 01 and 08. Note that 00 is not a valid address. The following table shows
the DIP switch setting for each address.
Note: address (ID Number) DIP switches on some devices may have more than 5
switch positions. Unless otherwise specified in the documentation supplied with
each device, switch positions 6 and above must be set to OFF.
Note: Switch 5 must be set to OFF for ANN-BUS devices to be recognized.
Address Switch 5 Switch 4 Switch 3 Switch 2 Switch 1
not valid OFF OFF OFF OFF OFF
01 OFF OFF OFF OFF ON
02 OFF OFF OFF ON OFF
03 OFF OFF OFF ON ON
04 OFF OFF ON OFF OFF
05 OFF OFF ON OFF ON
06 OFF OFF ON ON OFF
07 OFF OFF ON ON ON
08 OFF ON OFF OFF OFF
Figure 1.4 Powering ANN-BUS Devices from FCPS-24FS6/8
ANN-80
MS-9200UDLS
FCPS-24FS6/8
-24 VDC
+24 VDC
nonresettable
ANN-BUS
Cut Ground Fault Detection jumper JP1 (FACP monitors for ground faults)
ANN-BUS and power wiring are
supervised and power-limited
92udlstofcptoann.cdr
ANN-BUS/ACS BUS