4.24 Fire Mode Operation
This function is used to allow the inverter to ignore minor faults during emergency situations,
such as fire, and provides continuous operation to fire pumps.
When turned on, Fire mode forces the inverter to ignore all minor fault trips and repeat a
Reset and Restart for major fault trips, regardless of the restart trial count limit. The retry
delay time set at PR. 10 (Retry Delay) still applies while the inverter performs a Reset and
Restart.
Fire Mode Parameter Settings
Fire Mode operation
count
Px terminal
configuration
The inverter runs in Fire mode when Ad. 80 (Fire Mode Sel) is set to ‘2 (Fire Mode)’, and
the multi-function terminal (In. 65-71) configured for Fire mode (51: Fire Mode) is turned on.
The Fire mode count increases by 1 at Ad. 83 (Fire Mode Count) each time a Fire mode
operation is run.
Fire mode operation may result in inverter malfunction. Note that Fire mode operation voids the
product warranty – the inverter is covered by the product warranty only when the Fire mode
count is ‘0.’