Wear and tear calls for periodic inspection and service of elements in the application, e.g. motor bearings, feedback sensors and seals or filters. With

Preventive Maintenance the service intervals may be programmed into the frequency converter. The frequency converter will give a message when

maintenance is required. 20 Preventive Maintenance Events can be programmed into the frequency converter. For each Event the following must be

specified:

•

Maintenance item (e.g. "Motor Bearings")

•

Maintenance action (e.g. "Replace")

•

Maintenance Time Base (e.g. "Running Hours" or a specific date and time)

•

Maintenance Time Interval or the date and time of next maintenance

NB!

To disable a Preventive Maintenance Event the associated

Preventive Maintenance can be programmed from the LCP, but use of the PC-based VLT Motion Control Tool MCT10 is recommended.

The LCP indicates (with a wrench-icon and an "M") when it is time for a Preventive Maintenance Action, and can be programmed to be indicated on a

digital output in parameter group 5-3*. The Preventive Maintenance Status may be read in par. 16-96

indication can be reset from a digital input, the FC bus or manually from the Local Control Panel through par. 23-15

A Maintenance Log with the latest 10 loggings can be read from parameter group 18-0* and via the Alarm log button on the LCP after selecting Maintenance

Log.

Maintenance Time Base

MG.11.C5.02 - VLT

is a registered Danfoss trademark

3. Parameter Description

Disabled

(par. 23-12) must be set to

Prev. Maintenance Word

. A Preventive Maintenance

Reset Maintenance Word

[0].

191