Datasheet
D4NL
16
Safety Precautions
Be sure to read the precautions for All Safety Door Switches in the website at:http://www.ia.omron.com/.
Indication and Meaning for Safe Use
!CAUTION
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). Doing so may adversely affect insulation performance.
• 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 to
ensure that the base of the Operation Key does not strike the
Head, and adjust the stopper to be within the setting zone (0.5 to 3
mm) of the base of the Operation Key.
• Do not subject the Switch to a shock that exceeds the Switch's
shock resistance of 1,000 m/s
2
.
The Switch contacts can be used with either standard loads or
microloads. Once the contacts have been used to switch a load,
however, they cannot be used to switch smaller loads. The contact
surfaces will become rough once they have been used and contact
reliability for smaller loads may be reduced.
Release Key
• The release key is used to unlock the Switch in case of emergency
or if the power supply to the Switch stops.
• If the release key setting is changed from LOCK to UNLOCK, the
lock will be released and the safety door can be opened
(mechanical lock models only).
• When a Switch with a solenoid lock is in a locked state (i.e., when
the solenoid is ON), do not change the release key from the LOCK
to the UNLOCK position. Internal parts may be damaged.
•
The release key is set in the unlock position at the factory for the
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• Do not use the release key to start or stop machines.
• The auxiliary lock must only be released by authorized personnel.
• Do not impose a force exceeding 1 N·m on the release key screws.
The release key may be damaged and may not operate properly.
• To prevent the release key from being used by unauthorized
personnel, set it to LOCK and seal it with sealing wax.
Hinged Door
If an attempt is made to open the door beyond the lock position when the
Switch is used for a hinged door at 3a location near to the hinged side,
where the Operation Key’s insertion radius is comparatively small, the
force imposed will be much larger than for locations far from the hinged
side, and the lock may be damaged. Mount the Switch close to the handle.
Indicates an imminently hazardous
situation which, if not avoided, is likely to
result in serious injury or may result in
death. Additionally there may be severe
property damage.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury or in property damage.
Precautions
for Safe Use
Supplementary comments on what to do
or avoid doing, to use the product safely.
Precautions
for Correct
Use
Supplementary comments on what to do
or avoid doing, to prevent failure to
operate, or undesirable effect on product
performance.
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. Always ensure that the
release key is set to "UNLOCK" or that the Operation
Key is inserted before changing the direction of the head.
Not doing so may damage the Switch, causing some
machines to continue operating in situations where they
should be stopped. Refer to “Release Key” on page 16.
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.
Electric shock may occasionally occur.
Do not use metal connectors or metal conduits.
Precautions for Safe Use
DANGER
CAUTION
DANGER
Precautions for Correct Use
UNLOCK
LOCK
StopperOperation Key
Set zone
(0.5 to 3 mm)
UNLOCK
LOCK
UNLOCK
LOCK
UNLOCK LOCK UNLOCK LOCK
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Figure 1