SMC Networks CDUJB10-20D, Manual

Page: 23 / 28

Series
CUJ
Auto Switch Precautions 2
Be sure to read before handling.
Warning
Output (+)
Output (–)
Old
Red
Black
New
Brown
Blue
2 wire
Power supply (+)
Power supply GND
Output
Diagnostic output
Old
Red
Black
White
Yellow
New
Brown
Blue
Black
Orange
Solid state with diagnostic output
Power supply (+)
Power supply GND
Output
Old
Red
Black
White
New
Brown
Blue
Black
3 wire
5. Do not allow short circuit of
loads.
<Solid state switch>
All models of PNP output type switches
do not have built-in short circuit
protection circuits. If loads are short
circuited, the switches will be instantly
damaged.
Take special care to avoid reverse
wiring with the power supply line
(brown [red]) and the output line (black
[white]) on 3 wire type switches.
6. Avoid incorrect wiring.
<Solid state switch>
Warning
20
Wiring
1. Avoid repeatedly bending or
stretching lead wires.
Broken wires will result from applying
repeated bending stress or stretching
force to the lead wires.
2. Be sure to connect the load
before power is applied.
<2 wire type>
If the power is turned ON when an auto
switch is not connected to a load, the
switch will be instantly damaged
because of excess current.
3. Confirm proper insulation of
wiring.
Be certain that there is no faulty wiring
insulation (contact with other circuits,
ground fault, improper insulation
between terminals, etc.). Damage may
occur due to excess current flow into a
switch.
4. Do not run wiring near power
lines or high voltage lines.
Wire separately from power lines or
high voltage lines, avoiding parallel wir-
ing or wiring in the same conduit with
these lines. Control circuits containing
auto switches may malfunction due to
noise from these other lines.
∗
Lead wire color changes
Lead wire colors of SMC switches
have been changed in order to meet
NECA Standard 0402 for production
beginning in September 1996. Please
refer to the tables provided.
Take special care regarding wire
polarity during the time that the old
colors still coexist with the new colors.
Warning
Note) Lead wire colors inside [ ] are those
prior to conformity with IEC stand-
ards.
1) If connections are reversed on a 2
wire type switch, the switch will not
be damaged if protected by a
protection circuit, but the switch will
be in a normally ON condition.
However, it is still necessary to avoid
reversed connections, since the
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 switch, the switch
will be protected by a protection
circuit. However, if the power supply
line (+) is connected to the blue
[black] wire and the power supply
line (–) is connected to the black
[white] wire, the switch will be
damaged.