Azbil 5LX7 A1 Series, Руководство пользователя, Страница: 14 / 24

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Chapter 4. WIRING
This section describes wiring of the limit switch.
WARNING
Before wiring, turn the equipment power off. Depending on the voltage, failure to do so may result in
an electric shock.
CAUTION
Wiring should comply with “Recommended Practice for Explosion-Protected Electrical Installations in
General Industries.”
Securely attach the cover so that it tightly contacts the housing. If the cover is not well tightened, the
limit switch will not be effectively sealed.
Be sure to ground the limit switch using either the internal or external ground screw.
Do not use wire with silicone rubber insulation, or adhesive or grease which contains silicone. They can
cause contact failure in electrical contacts.
For connection to a conduit with G1/2 pipe thread, screw in to a depth of at least 5 threads, and secure
with a lock nut. If waterproofing is required, apply sealant to the screw threads. For explosion-proofing,
be sure to use a sealing fitting to connect the conduit to the switch, and apply sealing compound. For
waterproof applications, use liquid gasket or other sealant on the conduit threads.
Use wires or cables with a heat resistance to temperatures of 70 °C or more.
Handling Precautions
•
When wiring the terminal block, use wires whose nominal cross-sectional area
is 0.5–1.5 mm
2
(20–16 AWG) or cables whose nominal cross-sectional area is
0.5–2.5 mm
2
(20–14 AWG) together with M4 crimp terminals with insulating
sleeves (made by J.S.T. Mfg. Co., Ltd., or equivalent).
•
The figure below shows the size of the crimp terminal.
8 max.
16 max.
•
Make sure that the crimp terminals and wires do not touch the cover.
•
Bend the insulated crimp terminals down. Otherwise, the cover will not close
properly.
●
Removing the cover
Remove the M5 hexagon socket bolts using a 4 mm hexagon wrench.
M4 ring crimp terminal