Mitsubishi Electric FR-A872-E Instruction Manual page 23

 Removal of the lower main circuit terminal cover
(a) Remove the mounting screws to remove the lower main circuit terminal cover.
(b) With the cover removed, terminals U, V, and W can be wired and the cooling fan can be replaced (refer to
 Removal of the front cover
(a) Remove the mounting screws to remove the lower front cover.
(b) When the lower front cover is removed, the upper front cover can be removed.
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2. INSTALLATION AND WIRING
2.2 Removal and reinstallation of the operation panel or the front covers
(a)
(a)
(b)
(b)
page 98).