Control panel
For detailed information on the control panel, see ACx-AP-x assistant control panels user’s
manual (3AUA0000085685 [English]).
￭ Cleaning the control panel
Use a soft damp cloth to clean the control panel. Avoid harsh cleaners which could scratch
the display window.
￭ Replacing the control panel battery
For instructions on how to replace the control panel battery, see the separate ACx-AP-x
assistant control panels user’s manual document (3AUA0000085685 [English]).
Control units
￭ BCU control unit types
There are three variants of the BCU control unit used in ACS880: BCU-02, BCU-12 and
BCU-22. These have a different number of converter module connections (2, 7 and 12
respectively) but are otherwise identical. The three BCU types are interchangeable as long
as the number of connections is sufficient. For example, the BCU-22 can be used as a direct
replacement for both BCU-02 and BCU-12.
￭ Replacing the memory unit
After replacing a control unit, you can retain the existing parameter settings by transferring
the memory unit from the defective control unit to the new control unit.
WARNING!
Do not remove or insert the memory unit when the control unit is powered.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 112) before
you start the work.
2. Make sure that the control unit is not powered.
3. Undo the fastening screw and pull the memory unit out.
4. Install a memory unit in reverse order.
Maintenance 191
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