Maintenance and servicing
11.4 Replacing components
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
431
11.4
Replacing components
WARNING
The following must be taken into account when the devices are transported:
•
Some of the devices are heavy or top heavy.
•
Due to their weight, the devices must be handled with care by trained personnel.
•
Serious injury or even death and substantial material damage can occur if the devices
are not lifted or transported properly.
WARNING
The cabinet units are operated with high voltages.
All connection work must be carried out when the cabinet is de-energized!
All work on the device must be carried out by trained personnel only. Non-observance of
these warnings can result in death, serious personal injury, or substantial property damage.
Work on an open device must be carried out with extreme caution because external supply
voltages may be present. The power and control terminals may be live even when the
motor is not running.
Dangerously high voltage levels are still present in the device up to five minutes after it has
been disconnected due to the DC link capacitors. For this reason, the cabinet should not be
opened until after a reasonable period of time has elapsed.
11.4.1
Replacing the filter mats
The filter mats must be checked at regular intervals. If the mats are too dirty to allow the air
supply to flow normally, they must be replaced.
Note
Filter mat replacement is only relevant for options M23, M43 and M54.
Not replacing contaminated filter mats can cause premature drive shutdown.
