- 17 -
No.JXC
※
-OMT0007-D
Caution
(1) A dedicated Ground connection must be used. Grounding should be to a D-class ground
(ground resistance of
100Ω or less).
(2) The cross sectional area of the grounding cable shall be 2mm
2
minimum.
The Grounding point should be as near as possible to the controller. Keep the grounding cable as
short as possible.
(3) Mounting location
Design the size of the control panel and the installation type so that the temperature surrounding the
controller is within the operating temperature range.
Mount the controller vertically on the wall with 30mm or 50 more of space on the top and bottom of
the controller as shown below.
Allow 60mm or more of space between the front of the controller and the cover of the control cabinet
to allow access to the connectors.
Leave enough space between the controllers so that the operating temperatures of the controllers
stay within the specification range.
Avoid mounting the controller near a vibration source, such as a large electromagnetic contactor or
circuit fuse breaker on the same panel, or keep it away from the controller.
Caution
If the mounting surface for the controller is not flat or is uneven, excessive stress can be applied to
the case, which can cause failure. Mount on a flat surface.
30mm or longer
30mm or more (screw mounting)
50mm or more (DIN rail mounting)
Controller
Door (Lid)
0mm or more (Actuator body size 16 or less,
all size of LEH series is applicable)
10mm or more (Actuator body size 25 or more)
60mm or longer
Controller
Shared grounding --- Not acceptable
Controller
Other
equipment
Dedicated grounding --- Good
Controller
Other
equipment
D-class
groundin
g
