Mitsubishi Electric Melsec-Q172DCPU User Manual page 156

4 INSTALLATION AND WIRING
Top of panel or wiring duct
Motion CPU module
MITSUBISHI
5mm(0.20inch)
or more (Note-1)
(Note-1): 20mm (0.79inch) or more when the adjacent module is not removed and the extension cable is connected.
(Note-2): Q173DSCPU/Q172DSCPU use
(2) Module mounting position
Keep the clearances shown below between the top/bottom faces of the module
and other structures or parts to ensure good ventilation and facilitate module
replacement.
(Note): It is impossible to mount the main base unit by DIN rail.
Q173DCPU(-S1)/Q172DCPU(-S1) use
(3) Module mounting orientation
(a) Mount the Motion controller in the orientation shown below to ensure good
ventilation for heat release.
(b) Do not use it in either of the orientations shown below.
Vertical
Base unit
40mm
(1.57inch)
or more
Panel
(Note-2)
5mm(0.20inch)
or more
70mm (2.76inch) or more
100mm (3.94inch) or more
Flat
4 - 5
Motion CPU module
100mm
(3.94inch)
or more
Upside down