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(b) Do not use the programmable controller in the following 
positions:
(4) Install the base unit on a level surface.
If the surface is not level, force may be applied to the printed wiring 
board, causing a malfunction.
(5) Install the unit far from any source of vibration, such as a large 
magnetic contactor and a no-fuse breaker on the same panel, or 
install it on a separate panel.
(6) Keep the following distance between the programmable controller 
and other devices (such as a contactor and a relay) in order to 
avoid the influence of radiated noise and heat:
 • a device installed in front of the programmable controller
...................................................................100mm (3.94 inch) or more
 • a device installed on the right or left of the programmable 
controller
....................................................................50mm (1.97 inch) or more
Horizontal positionVertical position
or more
50mm (1.97inch) 
or more
50mm (1.97inch) 
relay, etc.
Contactor, and
 or more
100mm (3.94inch)