Fuji Electric RHC-D 690V Series, Руководство пользователя

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8 Maintenance and Inspection
Perform daily and periodic inspections to avoid trouble and keep reliable operation of the converter for a long time.
When performing inspections, follow the instructions given in this chapter
• Before proceeding to the maintenance/inspection, turn the power OFF and make sure that the charging lamp
(CHARGE) is turned OFF. Further, make sure that the DC voltage across the terminals P(+) and N(-) and the
terminal voltage of the filtering capacitor have dropped to the safe level (+25 VDC or below).
Otherwise, an electric shock could occur.
• Maintenance, inspection, and parts replacement should be made only by qualified persons.
• Take off the watch, rings and other metallic objects before starting work.
• Use insulated tools.
Otherwise, an electric shock or injuries could occur.
• Never attempt to modify the product.
Electric shock or injury could occur.
Reference: Necessary tools
• Phillips screwdrivers Nos. 2 and 3 (for M5 and M6)
• Ratchet wrench and sockets (10, 13, 17, and 19 mm)
and extension bar (150 mm desirable)
• Nippers and small pliers (required for correction of external wiring)
8.1 Daily Inspection
Visually inspect the converter for operation errors from the outside without removing the covers when the converter
is running or the power is ON, as listed below.
• Check that the expected performance (satisfying the standard specifications) is obtained.
• Check that the surrounding environment satisfies the standard requirements.
• Check that the monitors and indicators on the keypad are normal.
• Check for abnormal noise, odor or excessive vibration.
• Check for traces of overheat, discoloration and other defects.
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