Mitsubishi Electronics FX5U ユーザーズマニュアル

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5  INSTALLATION
5.4  Procedures for Installing Directly (with M4 Screws)
Installation of extension module
1.
Make mounting holes on the mounting surface 
according to the external dimensions diagram.
2.
Push in the DIN rail mounting hook (A in the right figure) 
of the extension module. If the DIN rail mounting hook is 
not pushed in, the screw hole is covered, and the 
extension module cannot be mounted. (This procedure 
may not be required, depending on the model.)
3.
Fit the extension module (B in the right figure) to the 
holes, and secure it with M4 screws (C in the right 
figure).
Rear panel
2
A
Rear panel
B
C
C