Frenic 5000VG7S Series, Инструкция по эксплуатации

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8-5
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
1) Use a 500V DC type megger and isolate the main power before commencing measurement.
2) If the test voltage is connected to the control circuit, remove all connection cables to the control circuit.
3) Connect the main circuit terminals using common cables as shown in Fig. 8-4-1.
4) Execute the megger test only between the common cables connected to the main circuit and the ground
(terminal
z
G).
5) A megger indicating 5M W or more is normal. (This is the value measured with an inverter only.)
(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.
1) Remove all external cables from the control circuit terminals.
2) Conduct a continuity test between grounds. A result of 1M
W
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.
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:
1) Inverter type
2) Serial No. (equipment serial number)
3) Purchase date
4) Inquiry details (e.g., damaged part, extent of damage, questions, status of fault)
(2) Product guarantee
The product guarantee term is one year after purchase or 18months from the year and month of
manufacture on the nameplate, whichever expires first. However, the guarantee will not apply in the
following cases, even if the guarantee term has not expired:
1) Damage was caused by incorrect use or inappropriate repair and modification.
2) The product was used outside the standard specified range.
3) Damage was caused by dropping the product after purchasing or damage during transportation.
4) Damage was caused by an earthquake, fire, flooding, lightning, abnormal voltage or other natural
calamities and secondary disasters.
Table 8-5-1 Part replacement
Part name Standard period
for replacement
Comments
Cooling fan 3years Exchange for a new part.
Smoothing capacitor 7years Exchange for a new part
(determine after checking).
Electrolytic capacitor
on the PC board 7years Exchange for a new PC
board (determine after
checking).
Fuse 10years Exchange for a new part.
Other parts
－
Determine after checking.
Figure 8-4-1 Megger test