ABB FAU810 flame test unit
• Flexible, field-customizable 16-channel
annunciator unit
• Alarm channels activated by normally open
or normally closed contact
• Four +16 output relays: two for group
realarms, one for an audible device, one
for the self-supervision system and an
additional sixteen relays for use as field
contact follower outputs or group realarm
outputs
• Parameter selection and adjustment from
front panel or via serial interface
• First-out alarm indication with clear fourdigit display on the front panel
• Extensive data communication via the
serial interface and the SPA bus
• Sophisticated hardware and software selfsupervision system for maximum operational reliability under the most demanding
environmental conditions
• Powerful software support for parameterization of the unit via the serial interface
• Member of the SPACOM product family,
ABB’s Distribution Automation systemt
• CE marking according to the EC directive
for EMC
Application The digital annunciator unit is used in a variety of applications requiring supervision of
alarm and signalling contacts in power plants,
substations and industrial process installations. The alarm unit is also approved for use
in off-shore installations and marine applications. Further, the annunciator unit can be
used in any application where on/off signals
are to be supervised.
The annunciator unit provides immediate
fault recognition, fault identification and
visual and audible alarm in an abnormal process situation. The annunciator unit also provides a means for subsequent fault analyses,
which means that corrective measures can be
carried out without delay and full control of
the process can be maintained.
The annunciator units can be used either as
independent stand-alone units, or they can be
connected together via a fibre-optic bus to
form complete supervision, event sequence
reporting and data acquisition systems.
The annunciator unit is a member of SPACOM, the ultimate integrated secondary
equipment system for power systems.

The annunciator unit is composed of five
modules, i.e. an alarm annunciator module,
an input/output module, a connection module,
an output relay module and a power module,
housed in a rugged aluminium casing.
The alarm annunciator module includes 16
alarm channels. The channels are activated by
normally open or normally closed process
contacts. The required 48 V dc contact circuit
voltage is generated and supervised by the
annunciator unit. Each channel can separately
be assigned a start delay from 5 ms to 160 s.
On activation of a channel the visual indica tor of the channels starts blinking. One of five
standardized blinking systems according to
ISA and DIN can be selected by the operator
at commissioning.
The annunciator is provided with a first-out
indication given via the four-digit alphanu merical display on the front panel. The first out alarm is indicated with a letter A and the
channel number.
The annunciator unit is also provided with an
event register, which stores the last nine
events in chronological order. The event reg ister can be read via the push-buttons and the
display on the front panel or via the serial
interface.
The annunciator holds four output relays, two
of which are used as group alarm output
relays. One of five modes of operation can be
selected for the realarm output relays. An
additional 16 output relays are located on a
separate module. These relays can be used as
field contact follower outputs or as group
realarm output relays.
One output relay is dedicated for the self supervision system and one for the control of
an audible device, such as a buzzer or a horn.