Fuji Bikes 5000G11S/P11S instruction manual

(1)Remove any optional cards from the inverter. Also disconnect the DC bus connections to the main circuit P(+) and N(-) terminals from the braking unit or other inverters if connected. The existing power-factor correcting reactor (DC reactor) need not be disconnected.

A power supply introduced to the auxiliary input terminals (R0, T0) that provides control power should be isolated.

(2)Disable all the digital inputs (FWD, REV, X1-X9) on the control terminals. Also disconnect RS-485 communication if used.

Turn on the main power supply. Confirm that the cooling fan is rotating and that the inverter is not operating. (There is no problem if the "OH2 External thermal relay tripped" trip function is activated due to the digital input terminal setting off.)

(3)Turn the main power off.

(4)Turn on the main power again after verifying that the charge lamp is completely off.

(5)Open the maintenance information on the keypad panel and confirm the capacitance values of the built-in capacitors.

2)Life expectancy of the control PC board

The actual capacitance of a capacitor is not measured in this case. However, the integrated operating hours of the control power supply multiplied by the life expectancy coefficient defined by the temperature inside the inverter will be displayed. Hence, the hours displayed may not agree with the actual operating hours depending on the operational environment.

Since the integrated hours are counted by unit hours, power input for less than one hour will be disregarded.

3) Life expectancy of cooling fan

The integrated operating hours of the cooling fan are displayed. Since the integrated hours are counted by unit hours, power input for less than one hour will be disregarded.

The displayed value should be considered as a rough estimate because the actual life of a cooling fan is influenced significantly by the temperature.

Table 8-2-2 Rough estimate of life expectancy using maintenance information

Parts	Level of judgment
Capacitor in main circuit	85% or less of the initial value
Electrolytic capacitor on	61,000 hours
control PC board

Cooling fan

40,000 hours (5HP or less), 25,000 hours (Over 7.5HP) (*1)

*1 Estimated life expectancy of a ventilation-fan at inverter ambient temperature of 40°C (104°F)

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