D4
GS-N
G-171
D4GS-N
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.
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.
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.
Tightening Torque
Be sure to tighten each screw of the D4GS-N properly, otherwise the
D4GS-N may malfunction.
Note: Mount securely, using screws of the specified size together with washers
(e.g., plain or spring washers).
Operation Key Mounting Holes
Stopper
5 cm
Fixing unit
Conduit
Bending radius
more than 45 mm
Type
Torque
Size
Body mounting
screw
0.75 to 1.15 N·m
M4 screw
Operation Key
mounting screw
0.75 to 1.15 N·m
M4 screw
Two, M4
20
±
0.1 or 22
±
0.1
14
±
0.1
Two, M4
Two, M4
D4GS-NK1/NK2
D4GS-NK4
