10-6
{xe "service port: software modes"}{xe "software modes"}
The Alarm Relay Card is typically used to provide a Brigade Interface. The def{xe
"service port: software modes"}{xe "software modes"}ault configuration is for the three
relays to operate on Fault (Trouble), Isolate (Supervisory) and Alarm, respectively.
The connection drawings for the Centaur ASE, Western Australia AIU and Queensland
PPU are included in the appendix.
{xe "service port: software modes"}{xe "software modes"}
These relays are normally de-energised{xe "service port: software modes"}{xe "software
modes"} and energise on the respective status. They have voltage-free contacts that are
connected to two terminals and can be configured as normally open or normally closed by
the positioning of links. Refer to Chapter 5 for details.
If a normally energized relay is required to provide activation on complete loss of system
power (Standby), the Aux Relay on the SPS can be programmed as normally on and its
contacts connected in series/parallel with the contacts of the Fault (Trouble) relay as is
applicable, i.e., series for normally closed, parallel for normally open. Where the Brigade
interface is powered from the system power and monitored by the central station, this is
not typically required.
Note that the Aux relay is programmed as normally energised, de-energising on Fault
cannot be used to replace the Fault relay on the Alarm Relay Card as the latter is link
connected to a hardware signal of “SPS CPU Fault”.
{xe "service port: software modes"}{xe "software modes"}
Standard rack mounting, 3U, Brigade Interface brackets are available as follows. FZ9028
includes the wiring loom. KT0199 requires KT0207 to provide the wiring loom with the
encapsulated Interface (FP0740).
Standard rack mounting, 4U, Brigade Interface brackets are available in black finish.
FP0935 (Centaur ASE) or FP0937 (WA/Cube ASE). Both these kits include mounting
hardware, Centaur ASE FAS unit, and wiring to supply power to the ASE from the SPS.
Connection for the Centaur ASE is shown in drawing 1976-174 Sheet 1.
Connections for the Cube ASE and WA ASE are shown in drawing 1922-96.
For the WA ASE, the links on the Alarm Relay Card are fitted for normally open
contacts. For the Centaur ASE, the links are fitted for normally closed contacts.
Brigade Interfaces
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