Guard Lock Safety-door Switch
D4JL
S
a
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ty D
o
o
r
Sw
it
c
h
e
s
P
recau
ti
on
s f
o
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All Sa
fe
ty
Do
o
r
Switch
e
s
D4
NS
D4
GS-
N
D
4
BS
D4
G
L
D4
JL
D
4
NL
D4
BL
D4
NH
D
4
0
B
D4
NS-
SK0
1
D4
NS-
SK3
0
D4
J
L
-SK3
0
68
Safety Precautions
Refer to the “Precautions for All Switches” on page B-2 and “Precautions for All Safety Door Switches” on page 2.
!
CAUTION
■
Precautions for Safe Use
Installation Environment
• Do not use the Switch in locations where explosive or flammable
gases may be present.
• 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.)
• Although the switch body is protected from the ingress of dust or
water, avoid the ingress of foreign substance through the key hole
on the head. Otherwise, the Switch may wear out more quickly or
be damaged.
Wiring
• Connect a fuse in series with the D4JL to protect it from short-
circuit damage. The value of the breaking current of the fuse must
be calculated by multiplying the rated current by 150% to 200%.
When using the D4JL for an EN rating, use a 10-A fuse of type g
I
or
g
G
that complies with IEC 60269.
• Do not switch circuits for two or more standard loads (3 A at
250 VAC) at the same time. Doing so may adversely affect
insulation performance.
• Do not allow the load current to exceed the rated value.
• 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 ½-
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
• Do not drop the Switch. Doing so may prevent the Switch from
functioning to its full capability.
• Make sure the Switch is mounted securely to prevent it from falling
off. Otherwise injury may result.
• Mount the Operation Key so that it will not come into contact with
persons in the area when the door is opened and closed. 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 so that
the base of the Operation Key does not strike the Head.
Other Precautions
• Do not attempt to disassemble or modify the Switch. Doing so may
cause the Switch to malfunction.
• The durability of the Switch is greatly influenced by the switching
conditions. Always test the switch under actual working conditions
before application and use it in a switching circuit for which there
are no problems with performance.
• The user must not maintain or repair equipment incorporating the
Switch. Contact the manufacturer of the equipment for any
maintenance or repairs required.
@
DANGER
Always verify the operation of the safety functions before
starting the system. Not doing so may result in the safety
functions not performing as expected if the wiring or
settings are incorrect or the Switches have failed. The
system being controlled may continue to operate and
possibly cause injury or death.
Always ensure that the release key is set to the "LOCK"
position before starting the system. If the release key
remains set to "UNLOCK", the electromagnetic lock
function will not operate and the system may continue to
operate, possibly causing injury or death. Always monitor
the solenoid NC contact (Terminal 41-42) in your safety
circuit. Do not connect indicator devices (like LED) to
safety circuit connected to terminal 41-42.
Do not apply force exceeding the specified maximum
holding force. Doing so may damage the Switch lock
mechanism and the system may continue to operate,
possibly causing injury or death. Either install another
locking component (e.g., a stopper) in addition to the
Switch, or use a warning method or indicator to show that
the controlled system is locked to avoid overloading the
holding force in lock mode.
Do not insert the Operation Key when the door is open.
The machine may operate, possibly causing injury.
Do not use metal conduits or wiring ducts. Electric shock
may occasionally occur.
Switches
Operation Key
Stopper
