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126 MicroMAX System User Manual Version 6.C
packaging is usually an antistatic bag that will protect the module components from
electrostatic discharge.
To Install a Module:
Installing a module is a bit more complex because you first have to be sure the locking
screws are aligned correctly
. The following procedure is suggested.
1. Verify
that the Controller has been turned OFF.
2. Rem
ove the replacement module from its antistatic packaging. This packaging is
designed to protect the module components from electrostatic discharge.
3. Rotate the two locking screws counterclockwise until the threads on the screws
engage those of the m
odule panel. See
Figure 75. By doing this, the screws will
be perfectly
perpendicular to the module panel and will align perfectly when the
module is inserted.
4. Insert the m
odule so that the top and bottom edges of the board are riding in the
proper guides.
5. Gently
but firmly push the module in until the 64-pin DIN connector at the back
of the module mates with the corresponding connector on the backplane, leaving
the module panel resting against the controller back panel.
6. Rotate the two locking screws clockwise. As the screws are rotated, they
will first
disengage from the module panel threads, and then begin to engage those of the
bracket behind the controller panel.
Tighten the screws to where they are just snug. Do not tighten them
any further because
you could easily bend the mating bracket.
WARNING!