Fuji Electric FRENIC-HVAC User Manual page 677

Hereafter, each time the inverter is turned OFF, it automatically measures the discharging time of the
DC link bus capacitor if the above conditions are met. Periodically check the relative capacitance of
the DC link bus capacitor (%) with PRG > 3(INV Info) > 4(Maintenance) in Programming mode.
The condition given above produces a rather large measurement error. If this mode gives you
a lifetime alarm, set H98 (Maintenance operation) back to the default setting (Bit 3 (Select
life judgment threshold of DC link bus capacitor) = 0) and conduct the measurement under
the condition at the time of factory shipment.
[ 3 ] Early warning of lifetime alarm
For the components listed in Table 10.3, the inverter can issue an early warning of lifetime alarm
LIFE at one of the transistor output terminals ([Y1] to [Y4]) and the relay contact terminals
([Y5A/5C], and [30A/B/C]) as soon as any of the levels specified in Table 10.3 has been exceeded.
The early warning signal is also turned ON when a lock condition on the internal air circulation DC fan
is detected.
10.3 List of Periodic Replacement Parts
10-7