⑤
Do not allow short-circuit of loads.
<Reed>
If the power is turned ON with a load in a short circuit condition, the switch will be instantly
damaged because of excess current flow into the switch.
<Solid state>
PNP output type auto switches do not have built-in short circuit prevention circuits.
If a load is short circuited, the auto switch will be instantly damaged as in the case of reed auto
switches.
Take special care to avoid reverse wiring with the brown power supply line and the black output
line on 3-wire type auto switches.
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.
⑦
When the cable sheath is stripped, confirm the stripping direction. The insulator may be
split or damaged depending on the direction. (D-M9
□
only)
- 14 -
Recommended Tool
Description
Model
Wire stripper
D-M9N-SWY
* Stripper for a round cable (Ø2.0) can
be used for a 2-wire type cable.
