FL4000
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3.9 Power up Grounding of the Test and Relay Reset Lines
During power up, grounding the reset relay line for approximately 1 second forces the
MODBUS parameters on both channels to go to their default values of: 19,200 Baud, 8-N-1
format, and Unit ID = 1.
During power up, grounding the test line for approximately 1 second forces the unit to use the
DIP switch settings rather than use the settings stored in the flash memory. These settings are
for the energized/de-energized relay state, the alarm delay, and the unit sensitivity.