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BBV28581 05/2010 99
Maintenance
Servicing
The Altivar 12 does not require any preventive maintenance. However, it is advisable to perform the following checks regularly:
• The condition and tightness of connections.
• Ensure that the temperature around the unit remains at an acceptable level and that ventilation is effective. Average service life of
fans: 10 years.
• Remove any dust from the drive.
• Ensure proper fan operation.
• Physical damage to covers.
Assistance with maintenance, detected fault display
If a problem arises during setup or operation, ensure that the recommendations relating to the environment, mounting and connections have
been observed.
The first fault detected is stored and displayed, flashing, on the screen: the drive locks and the status relay R1 contact opens.
Clearing the detected fault
In the event of a non resettable detected fault:
• Remove/cut the power to the drive.
• WAIT 15 MINUTES to allow the DC bus capacitors to discharge. Then follow the “Bus Voltage Measurement Procedure”, page 14
to
verify that the DC voltage is less than 42 V. The drive LEDs are not indicators of the absence of DC bus voltage.
• Find and correct the detected fault.
• Restore power to the drive to confirm the detected fault has been rectified.
Certain detected faults can be programmed for automatic restart after the cause has disappeared.
These detected faults can also be reset by cycling power to the drive or by means of a logic input or control bit.
Display menu
Use the display menu to show the status of the drive and it's current values as an aid for finding the causes of detected faults.
Spares and repairs
Serviceable product: Refer to the catalog for replacement of spare parts.
Procedure after a long time storage
WARNING
RISK OF EXPLOSION AT THE POWER UP
The capacitors after a long time storage can have issues. Following a storage time between 2 and 3 years:
• Use one AC supply variable connected between L1, L2 and L3.
• Increase AC supply voltage to have:
- 25% of rated voltage during 30 min
- 50% of rated voltage during 30 min
- 75% of rated voltage during 30 min
- 100% of rated voltage during 30 min
Failure to follow these instructions can result in death, serious injury, or equipment damage.