Internal Diagnostics

Internal diagnostics are provided by a watchdog timer. The watchdog

timer monitors for proper firmware execution and microprocessor

operation. If an internal operating error occurs, the Watchdog Timer

(WDT Fail) output contacts change state to annunciate the problem.

Front Panel Indicators

Front panel indicators consist of a liquid crystal display (LCD) and a

Sync LED indicator. The front panel LCD serves as the main user

interface and displays all information necessary for programming

and interpreting BE3-GPR actions.

The Sync LED lights to indicate that the generator is synchronized with

the bus. The Sync LED also lights when a dead bus condition exists.

Communication

An RS-232 serial port enables communication between the BE3-GPR

and a PC operating the BE3-GPR communication software.

BE3-GPR communication enables relay configuration and real-time metering

of power system parameters.