Download QSCPU CPU Module User`s Manual (Hardware)

b) Do not mount it in either of the orientations shown below.
Vertical mounting
Horizontal installation
Horizontal mounting
(4) Mount the base unit on a flat surface. If the mounting surface
is not even, this may strain the printed circuit boards and
cause malfunctions.
(5) Avoid mounting base unit in proximity to vibration sources
such as large magnetic contractors and no-fuse circuit
breakers; mount these on a separate panel or at a distance.
(6) In order to avoid the effects of radiated noise and heat,
provide the clearances indicated below between the PLC
and devices that generate noise or heat (contactors and
relays).
• Required clearance in front of PLC: at least 100 mm
(3.94 inch) *1
• Required clearance on the right and left of PLC: at least
50 mm
• (1.97 inch)
At least
100mm
(3.94 inch) *
At least
50mm
(1.97 inch)
Contactor, relay, etc.
26
At least
50mm
(1.97 inch)