The annunciator unit SACO 64D4 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 as independent stand-alone units, or several units can be interconnected and connected to printers, terminals, etc., to form complete supervision, event sequence reporting and data acquisition systems. The maximum annunciator system capacity is 560 channels in one system and the resolution of the time marking is 10 milliseconds.
The annunciator unit is a member of SPACOM, the ultimate integrated secondary equipment system for power systems.
Features:
- Self-contained microprocessor-based annunciator unit with 64 alarm channels
- Alarm channels activated by normally open or normally closed contact
- Small and large stand-alone annunciator applications
- Large centralized or distributed annunciator systems with event reporting
- Fully field-programmable by means of a portable programming module or via the serial interface
- Sixteen output relays, i.e. 14 for group realarms, one for an audible device and one for the self-supervision system
- Extensive communication with superior systems via the serial interface and the SPA bus
- High immunity to electrical and electromagnetic interference
- Sophisticated hardware and software self-supervision system for maximum operational reliability even under severe environmental conditions
- Powerful software support for parameterization of the annunciator units via the serial interface
- Member of the SPACOM product family, ABB’s Distribution Automation system and ABB’s Panorama concept
- CE marking according to the EC directive for EMC