3AUA0000036521  RDCU-12C RDCU Drive Control Units

Before installation, check that the RDCU unit has the correct application program for the converter hardware in question. There is a label attached to the cover of the RDCU unit that lists “SW TYPE”, “SW CODE” and “DEVICE TYPE”. “SW TYPE” identifies the application program that is loaded into the RDCU unit.
Some of the most common “SW TYPE” codes are AMXRxxxx (ACS800 System Application Program), ASxRxxxx (ACS800 Standard Application Program),
AHxRxxxx (ACS800 Pump Control Application Program), and IxxRxxxx (IGBT Supply Unit Application Program). Check that the application program corresponds to the original order.
Check also that the “DEVICE TYPE” indicated matches that of the converter hardware

Removal of unit from mounting rail
• Remove the two screws (B) holding the base plate of the unit to the mounting rail. Carefully bend the retaining clips (A) at the upper and lower edges of the cover outwards to release the unit completely from the mounting rail.
Removal and replacement of cover
• Remove all detachable (screw-type) terminal plugs from the RDCU, and disconnect any cables connected to the unit. Remove any optional modules.
If desired, the unit can be removed from the mounting rail as described above to facilitate the following steps.
• With a screwdriver or similar tool, carefully release the four cover retaining clips (C) on the right-hand side while simultaneously pulling the right-hand edge of the cover gently away from the base plate.
• Shift the cover to the left to free its left-hand edge, then pull it to detach it completely from the base and circuit board.
• Replace the cover in reverse order to the above (left-hand edge first). If the unit is already mounted onto its mounting rail, align the retaining clips (A) so that they catch on the mounting rail.

RDCU-12C