Wiring And Connections - Omron D5C Datasheet

Fig. 1
Metal plate
(200 cm 2 max.)
D5C
1 m
max.
10 cm min.
Parallel Arrangement
If there are multiple D5Cs are located in parallel, make sure that the
distance between adjacent antennas is at least 3 cm.
D5C
3 cm min.
D5C D5C
Maintenance
Make sure that the portion of the antenna that comes into contact
with sensing objects is free of oil, dirt, or rust, or any other insulator.
Otherwise, the D5C will not operate.
The degree of protection of the D5C is IP67. The D5C cannot be,
however, used in the water or oil.
Locations with Sprayed Water or Oil
The D5C may malfunction in locations where the D5C is frequently
exposed to sprayed water or oil. Especially, the D5C may malfunction
more frequently if it is exposed to sprayed water-soluble cutting oil. In
such locations, be sure to take appropriate measures to protect the
D5C from oil and water.

Wiring and Connections

Be sure to wire the D5C correctly according to the color of each cord.
Incorrect wiring may damage the internal components of the D5C or
the D5C may malfunction.
If AC models are connected in parallel, make sure that a load is con-
nected to each of the models.
A maximum of two models can be connected in series provided that
100 to 240 V is supplied. DC models cannot be connected in series.
D5C
D5C
Be sure to supply power to the D5C via the load. If power is supplied
to the D5C directly, the fuse will blow.
Fig. 2
l l l
1
6 5
l l
2 4
l
3
D5C
l + --- l ≤1 m
1 6
Fig. 3
D5C
Ground
Fig. 4
D5C
3 cm min.
Load
100 to 240 VAC
D5C
If there are wire power lines or high-tension lines close to the cord of
the D5C, be sure to wire the cord of the D5C away from power lines
or high-tension lines or lay the cord in an exclusive, shielded conduit.
Remove the caution label on the end of the cord before wiring the
cord.
D5C-1A@0 (AC Models)
Be aware that the D5C-1A@0 not in operation has a leakage current
of approximately 2 mA. Especially, if the load is a relay with a current
flow of 10 mA or less, a reset failure may result due to the residual
voltage. Therefore, connect a bleeder resistor as shown below so
that the residual voltage will be less than the reset voltage of the
load.
Load
Bleeder resistor R
D5C
The bleeder resistance and permissible power are obtained
from the following formula.
R ≤ V
/(10 - I) (kΩ)
S
2
P > V (mW)
/
S R
P: W number of bleeder load
P: Withstanding power of bleeder resistor
(Practically, the wattage must be a few times larger than the
obtainable value.)
I: Load current (mA)
If a DC relay or DC counter is used as a load connected through an
electronic timer or current rectification circuit, pay the utmost atten-
tion so that the leakage current of the D5C AC model will not cause
the load to malfunction.
Sensitivity Adjustment
The sensitivity of the D5C can be adjusted by turning the adjuster on
the rear side with a flat-blade screwdriver.
The sensitivity increases by turning the adjuster clockwise and
decreases by turning the adjuster counterclockwise.
SENSI
−
Set point
Be sure to turn the adjuster with a torque of 4.9 to 7.8 mN • m.
If excessive torque is applied, the adjuster will break.
Touch Switch
Power
source
Incorrect
AC power
supply Vs
+
D5C
7