• Before proceeding to maintenance or inspection, turn OFF the power and wait at least 10 minutes.
Make sure that the charging lamp is turned OFF. Further, make sure, using a multimeter or a similar
instrument, that the DC link bus voltage between the terminals P(+) and N(-) has dropped to the safe
level (+25 VDC or below).
Otherwise, an electric shock could occur.
• Always carry out the daily and periodic inspections described in the this manual. Use of the inverterfor
long periods of time without carrying out regular inspections could result in malfunction or damage, and
an accident or fire could occur.
• It is recommended that periodic inspections be carryout every one to two years, however, they should
be carried out more frequently depending on the usage conditions.
• It is recommended that parts for periodic replacement be replaced in accordance with the standard
replacement frequency indicated in the this manual. Use of the product for long periods of timewithout
replacement could result in malfunction or damage, and an accident or fire could occur.
• Contact outputs [30A/B/C] [Y5A/C] [Y4A/C] [Y3A/C] use relays, and may remain ON, OFF, or
undetermined when their lifetime is reached. In the interests of safety, equip the inverter with an
external protective function.
Fire or an accident could occur.
• Maintenance, inspection, and parts replacement should be made only by qualified persons.
• Take off the watches, rings and other metallic objects before starting work.
• Use insulated tools.
Otherwise, an electric shock or injuries could occur.
• Never modify the inverter.
Doing so could cause an electric shock or injuries.
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