Reduced Run Capability; Checking And Replacing The Air Filters - ABB ACS800-37-0060-3 Hardware Manual

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Reduced run capability

If one of the parallel-connected supply or inverter modules must be taken out of the
cabinet for service, it is possible to continue operation at reduced power using the
remaining modules.
Note: This function is only available if the drive is equipped with a PPCS branching
unit of type APBU-xx. (The function is not supported by type NPBU branching units.)
1. Read and repeat the steps in the safety instructions above.
2. Extract the module to be serviced from the cabinet. Follow the directions given on
page 84.
3. Fasten the air baffle provided with the unit to the top module guide to block airflow
through the empty module bay.
4. Make the necessary parameter adjustments in the drive firmware. Refer to the
appropriate Firmware Manual.
Reconnect the module after service in reverse order.

Checking and replacing the air filters

1. Read and repeat the steps in Safety instructions above.
2. Open the cabinet doors.
3. Check the air filters and replace if necessary (see
filter types). The inlet (door) filters can be accessed by removing the fastener(s) at
the top of the grille, then lifting the grille and pulling it away from the door. The
outlet (roof) filter in IP54 units has a similar mechanism.
4. Check the cleanliness of the cabinet. Clean the interior of the cabinet if necessary
using a soft brush and a vacuum cleaner.
5. Close the cabinet doors.
Maintenance
Technical data for the correct