Datasheet

14
SA1E-L Miniature Laser Photoelectric Switches (Built-in Amplifier)
Power Supply and Wiring
Do not use the SA1E-L photoelectric switch in the transient status •
immediately after turning on the power (approx. 100 ms). When
the load and switch use different power supplies, make sure to
power up the switch first.
Use a power supply with little noise and inrush current, and use •
the photoelectric switch within the rated voltage range. Make sure
that the ripple is within the allowable limit. Do not apply AC volt-
age, otherwise the switch may blow out or burn.
When using a switching power supply, make sure to ground the •
FG (frame ground) terminal, otherwise high-frequency noise may
affect the photoelectric switch.
Turn power off before inserting/removing the connector on photo- •
electric switch. Make sure that excessive mechanical force is not
applied to the connector. Connect the connector cable to a tight-
ening torque of 0.5 N·m maximum.
To ensure the degree of protection, use the applicable connector •
cable for the connector type. Connector cables are ordered sepa-
rately (see page 5).
Avoid parallel wiring with high-voltage or power lines in the same •
conduit, otherwise noise may cause malfunction and damage.
When wiring is long, use a separate conduit for wiring.
Use a cable of 0.3 mm •
2
minimum core wires, then the cable can
be extended up to 100 m.
Installation
Installing the Photoelectric Switch
Do not install the S • A1E-L photoelectric switches in an area where
the switches are subject to the following conditions, otherwise
mal function and damage may be caused.
∗ Inductive devices or heat source
∗ Extreme vibration or shock
∗ Large amount of dust
∗ Toxic gases
∗ Water, oil, chemicals
∗ Outdoors
Make sure to prevent sunlight, fluorescent light, and especially •
the fluorescent light of inverters from entering the receiver of the
pho toelectric switch directly. Keep the through-beam type receiver
away from intense extraneous light.
Interference prevention allows two SA1E-L switches to be mount- •
ed in close proximity. However, the through-beam model is not
equipped with interference prevention. Maintain appropriate dis-
tance between the switches referring to the lateral displacement
characteristics.
Because the SA1E-L photoelectric switches are IP67 waterproof, •
the SA1E-L can be exposed to water. However, wipe water drops
and smears from the lens and slit using a soft cloth to make sure
of the best detecting performance.
Acrylic resin is used for optical elements. Do not use ammonia or •
caustic soda for cleaning, otherwise optical elements will be dis-
solved. To remove dust and moisture build-up, use soft dry cloth.
Tighten the mounting screws (M3) to a torque of 0.4 to 0.5 N·m. •
Do not tighten the mounting screws excessively or hit the switch
with a hammer, otherwise the protection degree cannot be main-
tained.
Installing the Reflector
Use M4 mounting screws for the IAC-R5 and IAC-R8 reflectors. •
Tighten the mounting screws to a tightening torque of 0.4 to 0.5
N·m maximum. Do not tighten the mounting screws excessively,
otherwise the screw holes of the reflector will be damaged.
While optional reflector mounting bracket IAC-L2 is not sup- •
plied with mounting screws or nuts, the IAC-L3 and IAC-L5 are
supplied with mounting screws for mounting the reflector on the
bracket.
(12/04/19)