前付 14
(6)
Avoid incorrect wiring.
<Reed>
A 24 VDC auto switch with indicator light has polarity. The brown lead wire or terminal No.1 is (+), and the blue
lead wire or terminal No.2 is (-).
1)
If connections are reversed, the auto switch will operate, however, the LED will not light up.
Also, take note that a current greater than that specified will damage the LED and it will no longer operate.
Applicable models: D-93, A93V
<Solid state>
1)
If connections are reversed on a 2-wire type auto switch, the auto switch will not be damaged if protected by
a protection circuit, but the auto switch will always stay in an ON state. However, it is still necessary to avoid
reversed connections, since the auto switch could be damaged by a load short circuit in this condition.
2)
If connections are reversed (power supply line + and power supply line-) on a 3-wire type auto switch, the
auto switch will be protected by a protection circuit. However, if the power supply line (+) is connected to the
blue wire and the power supply line (-) is connected to the black wire, the auto switch will be damaged.
When the cable sheath is stripped, confirm the stripping direction. The insulator may be split or damaged
depending on the direction. (D-M9□ only)
Operation Environment
(1)
Never use in an atmosphere with explosive gases.
Auto switches are not designed with explosion-proof construction. Never use in an atmosphere containing
explosive gas since this may cause a serious explosion.
Please contact SMC concerting ATEX compliant products.
(1)
Do not use in an area where a magnetic field is generated.
Auto switches will malfunction or magnets inside rotary actuator will become demagnetized. (Please consult
with SMC if a magnetic field resistant auto switch can be used.)
(2)
Do not use in an environment where the auto switch will be continually exposed to water.
Although auto switches satisfy IEC standard IP67 construction (JIS C 0920: watertight construction), do not
use auto switches in applications where continually exposed to water splash or spray. Poor insulation or
swelling of the potting resin inside auto switches may cause malfunction.
Recommended Tool
Description
Model
Wire stripper
D-M9N-SWY
* Stripper for a round cable (
2.0) can
be used for a 2-wire type cable.
Warning
Caution
