Chapter 7 Maintenance And Inspection; Daily Inspection; Periodic Inspection - FujiFilm Frenic-Mini Instruction Manual

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Chapter 7 MAINTENANCE AND INSPECTION

Perform daily and periodic inspection to avoid trouble and keep reliable operation for a long time.

Take care of the following items during work.

• The electric charge in the DC bus capacitor may be being charged even after the power is

turned off. Therefore, it may take a long time until the DC link circuit voltage reaches a

safety potential. Do not open the control circuit terminal block cover within 5 minutes after

the power has been turned off. Then remove the control circuit and main circuit terminal

block covers. Check that the DC link circuit voltage between main circuit terminals P (+) and

N (-) does not exceed the safety voltage (+25 VDC) with a multimeter and start the

maintenance and inspection.

Electric shock may occur.

• Maintenance, inspection, and parts replacement should be made only by authorized

persons.

• Take off the watch, rings and other metallic matter before starting work.

• Use insulated tools.

• Never remodel.

Electric shock or injuries could occur.

Visually inspect errors in the state of operation from the outside without removing the covers while

the inverter operates or while it is turned on.

Check if the expected performance (satisfying the standard specification) is obtained.

Check if the surrounding environment satisfies Chapter 2, Section 2.1 "Operating

Environment."

Check that the LED monitor displays normally.

Check for abnormal noise, odor, or excessive vibration.

Check for traces of overheat, discoloration and other defects.

Perform periodic inspection by following the items of the list of periodic inspection in Table 7.1.

Stop the motor, turn the inverter off and remove the control and main circuit terminal block covers

to perform periodic inspection.

7-1

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