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Safety Precautions
Refer to the "Precautions for All Switches" and "Precautions for All Safety Door Switches".
DANGER
Injury may occasionally occur. Always check to make
sure that the safety functions operate correctly before
using the machine. The safety functions may not
operate correctly because of wiring mistakes, setting
mistakes, or Switch malfunction, causing some
machines to continue operating in situations where they
should be stopped.
Injury may occasionally occur. If the machine is used
with the release key in the UNLOCK position, the
electromagnetic lock may not operate, causing some
machines to continue operating in situations where they
should be stopped. Be sure to put the release key in the
LOCK position before using the machine. Also, check
the condition of the lock and safety circuits.
Injury may occasionally occur. When the
electromagnetic lock function or Switch function is
damaged, some machines may continue operating in
situations where they should be stopped. Do not use the
electromagnetic lock function of the Switch in place of a
door lock. Always provide a lock separate from the
Switch, attach a warning seal to prevent people from
using excessive force to open the door when it is locked,
or provide an indicator lamp to show the locked/
unlocked status of the door.
!CAUTION
Electric shock may occasionally occur.
Do not use metal connectors or metal conduits.
Precautions for Safe Use
Installation Environment
• Do not use the Switch submersed 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. (The IP67 degree of
protection of the Switch specifies the amount of water penetration
after the Switch is submerged in water for a certain period of time.)
Wiring
• 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.
• Do not use screws longer than 9 mm when using metal connectors.
Otherwise it may result in electric shock.
• Do not use metal conduits. Damage to the conduit opening may
result in an improper seal or electric shock.
• Do not use metal connectors or metal conduits when using
1/2-14NPT connectors. Damage to the conversion adapter may
result in an improper seal or electric shock.
• Always attach the cover after completing wiring and before using
the Switch. Do not supply power when the cover is not attached.
Electric shock may occur if the Switch is used without the cover
attached.
Installation
• Make sure the Switch is mounted securely to prevent it from falling
off. Otherwise injury may result.
• Do not use the Switch as a stopper. Be sure to install a stopper as
shown in the following illustration when mounting the Switch and
adjust the stopper so that the Operation Key is within the setting
zone.
Do not subject the Switch to a shock that exceeds the Switch's
shock resistance of 1,000 m/s
Stopper
Operation Key
Switch
Correct
D4JL
2
.
Incorrect
.
21
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