Fuji Bikes 5000G11S/P11S instruction manual Inquiries about Products and Product Guarantee

8-4 Insulation Test

Avoid testing an inverter with a megger because an insulation test is completed at the factory. If a megger test must be completed, proceed as described below. Use of an incorrect testing method may result in product damage.

If the specifications for the dielectric strength test are not followed, the inverter may be damaged. If a dielectric strength test must be completed, contact your local distributor or nearest Fuji Electric sales office.

(1)Megger test for the main circuit

①Use a 500V DC type megger and isolate the main power before commencing measurement.

②If the test voltage is connected to the control circuit, remove all connection cables to the control circuit.

③Connect the main circuit terminals using common cables as shown in Fig. 8-4-1.

④Execute the megger test only between the common cables connected to the main circuit and the ground (terminal G).

⑤A megger indicating 5MΩ or more is normal. (This is the value measured with an inverter only.)

Fig. 8-4-1

Megger test

(2) Insulation test in the control circuit

A megger test and a dielectric strength test must not be performed in the control circuit. Prepare a high resistance range multimeter for the control circuit.

①Remove all external cables from the control circuit terminals.

②Conduct a continuity test between grounds. A result of 1MΩ or more is normal.

(3)Exterior main circuit and sequence control circuit

Remove all cables from inverter terminals to ensure the test voltage is not applied to the inverter.

8-5 Parts Replacement

The life expectancy of a part depends on the type of part, the environment, and usage conditions. Parts should be replaced as shown in Table 8-5-1.

Table 8-5-1 Part replacement

Part name	Standard	Comments
	period for
	replacement
Cooling fan	3 years	Exchange for a new part.
Smoothing	5 years	Exchange for a new part
capacitor		(determine after checking).
Electrolytic	7 years	Exchange for a new PC board
capacitor on the		(determine after checking).
PC board
Fuse	10 years	Exchange for a new part.
Other parts	－	Determine after checking.

8-6 Inquiries about Products and Product Guarantee

(1) Inquiries

If there is damage, a fault in the product, or questions concerning the product, contact your local distributor or nearest Fuji Electric sales office:

a)Inverter type

b)Serial No. (equipment serial number)

c)Purchase date

d)Inquiry details (e.g., damaged part, extent of damage, questions, status of fault)

8-5