TOYODenki VFDB2009 Series, Руководство по эксплуатации

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Chapter 10
Maintenance
10.1 Regular check
In order to keep the condition of the equipment best at all times and exercises the performance fully, regular
check shall be conducted at least every six months and check shall be performed for the place which usual
operation monitoring can not check.
Maintenance shall be conducted by the person who has the safety knowledge of electricity.
CAUTION
[Inspection operation]

Do not open the cover as input power source is turned on.
Failure to do so may cause an electric shock.

Please perform inspection after turning off DB unit
power source and going out of LED for “CHG” confirmation on
VFDB2009-Z circuit printed board.
Failure to do so may cause an electric shock.
Failure to follow this warning may cause burns.

Be careful that the temperature of the radiating fin is high depending on the use conditions.
Failure to follow this warning may cause burns.
DANGER
[Maintenance and inspection]

Please perform inspection after input power source is turned OFF and 10 minutes or more pass. In addition, check
voltage between P and N and check it is 30V or less.
Failure to do so may cause an electric shock.

Do not perform maintenance and inspection by the person other than designated person.
［
Remove metal (watch and ring) before work.
］
Failure to do so may cause an electric shock, personal injury.
List of regular sheck
Items and objuct Check content
Appearance of unit Check that there is no dirt and dust filled with radiating fin and clean.
Cooling fan Clean if dirt and dust are attached in the cooling fan. In addition, replace fan only
as a target of period of endurance of fan (30,000 hours).
Interior unit Check if dirt and dust are attached on the printed board and other electronic parts.
Terminal block and
terminal screw Check if there is looseness of terminal block and mounting screw, and tighten
additionally.
Connector Check if there is no looseness of connector and terminal of control printed board.
Wiring Check if there is no abnormality such as crack and deformation in insulating
coating of wiring.
10.2 Disposal
Dispose of replacement parts and maintenance parts complying with local regulations.