Correct Use - Omron D4GS-N Datasheet

Precautions
Do not insert the Operation Key to the switch with the door open.
Machine may start operating and injury may be caused.
NOTICE
Do not use the D4GS-N# Switch or D4GS-NK# Operation Key (rub-
ber color: red) in combination with the D4GS-# Switch or D4GS-K#
Operation Key (rubber color: black).
Mount the Operation Key at a location where it will not come in con-
tact with users when the door is opened or closed.
When operating the D4GS-N as a part of a safety category circuit to
prevent injury, operate the NC contacts that have a direct opening
mechanism in direct opening mode. For safety purposes, tighten the
switch body and Operation Key with one-way screws or equivalents
or install a switch protection cover and warning label for safety pur-
poses to prevent easy removal of the D4GS-N.
Connect the fuse to the D4GS-N in series to prevent it from short-cir-
cuit damage. The value of the breaking current of the fuse must be
calculated by multiplying rated current by 150% to 200%. When
using the D4GS-N with EN ratings, use 10-A fuse Type gI or gG that
complies with IEC60269.
Do not supply electric power when wiring.
Do not use the D4GS-N where explosive gas, flammable gas, or any
other dangerous gas may be present.
Keep the electrical load below the rated value.
Never wire to a wrong terminal.
Be sure to evaluate the D4GS-N under actual working conditions
after installation.
Do not drop the D4GS-N. Excessive shock or vibration can cause
malfunction or damage to Switch characteristics. Do not disassem-
ble the internal switch, there are no user-serviceable parts inside.
Do not use the D4GS-N as a stopper. When mounting the D4GS-N,
be sure to locate a stopper as shown in the following illustration to
prevent the top of the Operation Key from hitting the switch head.
Stopper
Cables should not be bent repeatedly. A cable is fixed with sealing
materials on the bottom of the D4GS-N. When excessive force may
be imposed on the cable, fix the cable with a fixing unit at the dis-
tance of 5 cm from the bottom of the D4GS-N as shown. When
bending the cable, secure the cable with more than 45-mm bending
radius so as not to cause damage to the insulator or sheath of the
cable. Do not fasten or loosen the conduit at the bottom of the
D4GS-N. When wiring, be sure not to allow a liquid such as water or
oil into the tip of cable.
Conduit
Bending radius
more than 45 mm
5 cm
Fixing unit
D4GS-N

Correct Use

Operating Environment
Do not use the D4GS-N in the following locations:
• Locations subject to severe temperature changes
• Locations subject to high temperatures or condensation
• Locations subject to severe vibration
• Locations subject to metal chips, oils, and chemicals inside a pro-
tective door
Life Expectancy
The life of the D4GS-N will vary with the switching conditions. Before
applying the D4GS-N, test the D4GS-N under actual operating con-
ditions and be sure to use the D4GS-N in actual operation within
switching times that will not lower the performance of the D4GS-N.
Mounting
Mounting hole dimensions for mounting the main body are as shown
below.
Two, M4
20±0.1 or 22±0.1
Tightening Torque
Be sure to tighten each screw of the D4GS-N properly, otherwise the
D4GS-N may malfunction.
Type Torque
Body mounting
0.75 to 1.15 N·m
screw
Operation Key
0.75 to 1.15 N·m
mounting screw
Note: Mount securely, using screws of the specified size together with washers
(e.g., plain or spring washers).
Operation Key Mounting Holes
D4GS-NK1/NK2 D4GS-NK4
Two, M4
14±0.1
Size
M4 screw
M4 screw
Two, M4
G-171