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Safety Precautions
Refer to OMRON SAFETY COMPONENTS SERIES (Y106) for
common precautions for Switches and Safety Limit Switches.
CAUTION
Do not use metal connectors or metal conduits with this Switch.
Doing so may occasionally result in electric shock.
Precautions for Safe Use
• Do not drop the Switch. Doing so may result in the Switch not
performing to its full capacity.
• Do not attempt to disassemble or modify the Switch. Doing so may
cause the Switch to malfunction.
• Do not use the Switch where explosive gas, flammable gas, or any
other hazardous gas may be present.
• Do not use the Switch submerged in oil or water, or in locations
continuously subject to splashes of oil or water. Doing so may result
in oil or water entering the Switch interior. (The IP67 degree of
protection specification for the Switch refers to water penetration
while the Switch is submersed in water for a specified period of
time.)
• Protect the head from foreign material. Subjecting the head to
foreign material may result in premature wear or damage to the
Switch. Although the switch body is protected from penetration by
dust or water, the head is not protected from penetration by minute
particles or water.
• Turn the power OFF before wiring. Doing so may result in electric
shock.
• Install the cover after wiring. Not doing so may result in electric
shock.
• Connect a fuse to the Switch in series to protect the Switch from
short-circuit damage. Use a fuse with a breaking current 1.5 to 2
times larger than the rated current. To conform to EN ratings, use
an IEC60269-compliant 10-A fuse type gI or gG.
• Do not switch circuits for two or more standard loads (250 VAC,
3 A) at the same time. Doing so may adversely affect insulation
performance.
• The durability of the Switch is greatly affected by operating
conditions. Evaluate the Switch under actual working conditions
before permanent installation and use within a number of switching
operations that will not adversely affect the Switch's performance.
• Be sure to indicate in the machine manufacturer's instruction
manual that the user must not attempt to repair or maintain the
Switch and must contact the machine manufacturer for any repairs
or maintenance.
• Check the Switches before use and inspect regularly, replacing
them when necessary. If a Switch is kept pressed for an extended
period of time, the components may deteriorate quickly, and the
Switch may not release.
Precautions for Correct Use
Environment
• The Switch is intended for indoor use only.
• Do not use the Switch outdoors. Doing so may cause the Switch to
malfunction.
• Do not use the Switch where hazardous gases (e.g., H
NH
, HNO
, CI
) are present or in locations subject to high
3
3
2
temperature and humidity. Doing so may result in damage to the
Switch caused by contact failure or corrosion.
• Do not use the Switch under any of the following conditions.
• Locations subject to extreme temperature changes.
• Locations where high humidity or condensation may occur.
• Locations subject to excessive vibration.
• Locations where metal dust, processing waste, oil, or chemicals
may penetrate through the protective door.
• Locations subject to detergents, thinner, or other solvents.
D4N
Mounting Method
Mounting Screw Tightening Torque
Tighten each of the screws to the specified torque. Loose screws
may result in malfunction of the Switch within a short time.
1
Terminal screw
2
Cover clamping screw
3
Head clamping screw
4
Lever clamping screw
5
Body clamping screw
6
Conduit mounting connection,
M12 adaptor
7
Cap screw
4
5
1
2
Switch Mounting
• Mount the Switch using M4 screws and washers and tighten the
screws to the specified torque.
• For safety, use screws that cannot be easily removed, or use an
equivalent measure to ensure that the Switch is secure.
• Secure the Switch with two M4 bolts and washers. Provide studs
with a diameter of 4
places, inserting into the holes at the bottom of the Switch as
shown below so that the Switch is firmly fixed at four points.
Switch Mounting Holes One-conduit Type
S, SO
,
2
2
Two-conduit Type
• Make sure that the dog contacts the actuator at a right angle.
Applying a load to the switch actuator (roller) on a slant may result
in deformation or damage of the actuator or rotary shaft.
0.6 to 0.8 N·m
0.5 to 0.7 N·m
0.5 to 0.6 N·m
1.6 to 1.8 N·m
0.5 to 0.7 N·m
1.8 to 2.2 N·m (except 1/2-
14NPT)
1.4 to 1.8 N·m (1/2-14NPT)
1.3 to 1.7 N·m
3
6
− 0.05
/
and a height of 4.8 mm max. at two
− 0.15
Two, M4
±0.1
2.5
±0.1
20
22
±0.1
±0.1
47
±0.1
22
−0.05
4
dia.
−0.15
Height: 4.8 max.
Two, M4
±0.1
2.5
±0.1
5.35
20
±0.1
±0.1
22
39
±0.1
±0.1
40
42
±0.1
42
±0.1
−0.05
4
−0.15
Height: 4.8 max.
7
dia.
G-237
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