G-303
A4E
A4
E
Precautions
Do not wire the Switch or touch any terminal of the Switch
while power is being supplied. Doing so may result in electric
shock.
Always use the Switch in a system that is operated directly by
hand. Do not operate the Switch with a mechanical actuator.
Insufficient Switch strength may result in damage to the
Switch, electric shock, or fire.
Design a safe system for using the Switch, based on a risk
assessment that takes into account all reasonably
foreseeable malfunctions.
Determine the Switch mounting direction and structural
design only after thorough risk assessment. For example, in a
structure where the Switch protrudes from the pendant
perimeter, the weight of the pendant itself could place the
Switch into the enable condition and operate the machine.
Likewise, in a buried structure where the Switch lies below the
surface of the pendant, the Switch may not enter the grip
condition when pressed and thus fail to stop the machine.
Configure the system so that the machine operates only when
the Switch is in the enable position.
Correct Use
Mounting
Use M3 screws and flat washers or spring washers to mount the
Switch securely. Use a tightening torque of 0.39 to 0.59 Nm.
No-mounting-bracket type
Horizontal mounting type
Vertical mounting type
Vertical mounting type with rubber seal
Wiring
• Use an appropriate wire size (0.5 to 0.75 mm
2
) for the applied volt-
age and carry current.
• Do not use a #110 tab receptacle.
• Wire according to the terminal numbers. Mistaken wiring may dam-
age the Switch and result in fire.
• Wire according to the terminal arrangement.
• Use good-quality 6:4 (tin:lead) solder.
• Use a resin flux cored solder.
• Do not use a liquid or chlorine type flux.
• Perform soldering within 3 s using a 30-W max. soldering iron (tem-
perature at the tip of the soldering iron: 350°C max.). Insulate with
an insulation tube.
• Do not move the terminal for at least one minute after soldering.
• Do not apply a force that would deform the terminal when wiring.
Operating Environment
Prior to using the Switch in places that are subject to contact by oil
spray or chemicals, check the effect of those substances on the
Switch.
Some types of oil spray and chemicals will degrade the sealing capa-
bility, which may result in faulty contact, defective insulation, ground
fault, or burning damage.
Improper Operating Environment
• Do not use the Switch in places that are subject to sudden temper-
ature change.
• Do not use the Switch in places that are subject to high tempera-
tures and condensation.
• Do not use the Switch in places that are subject to strong vibration.
• Do not use the Switch in places that are subject to direct contact
with machine filings or dust.
Storage
• Do not store the Switch in places with hydrogen sulfide or other
corrosive gas or sea breeze.
• Do not store the Switch in places where the level of dust is high
enough to be visible.
• Do not store the Switch in direct sunlight.
• Do not impose excessive force on the Switch during storage. Oth-
erwise, the Switch may deform.
Handling
• Do not drop the Switch. Otherwise, the Switch may malfunction.
• Do not apply strong vibration or shock to the Switch. Otherwise, the
Switch may malfunction or be damaged.
Do not contact the Switch with sharp objects. Otherwise, the
Switch may be scratched. Scratches on the operating portion of the
Switch may result in problems both in appearance and operation.
WARNING
WARNING
CAUTION
CAUTION
CAUTION
8
8
44.3
±
0.1
Four, 2-dia. holes
Two, 3.2-dia. holes
+0.2
0
70.3
±
0.1
Two, 3.2 dia. holes or M3 screw holes
+0.2
0
72
±
0.1
Two, 3.2-dia. holes
+0.2
0
13.5
±
0.1
72
±
0.1
63.3
±
0.1
Two, 3.2-dia. holes
+0.2
0
F502-EN2-04.book Seite 303 Dienstag, 26. Juli 2005 5:48 17
