User's Manual

4-6 Wiring Method
4-6
4-12
4-6-1 Power Supply and Grounding Wires
● Power cable
 Power side              Reader/Writer side
Connector plug
Connected to
Name
Pin No．
24 VDC + 24 VDC
2
GR FG 3
0V GND 1
● Recommended Compact DC Power Supply (OMRON)
Model Output capacitance Input voltage
S82K-03024 24VDC at 1.3A 100/200V
Note
● Use 24 VDC to supply power to the Reader/Writer. When you use the recommended power supply, S82K-03024,
and a cable with a thickness of AWG16, the cable can be extended to 7 meters at maximum. If a longer power wire
is desirable, use a power supply with remote sensing function.
● The maximum power consumption of the Reader/Writer is 25 W. An inrush current of approximately 30 A at 24
VDC, however, flows when the Reader/Writer is turned ON. Take this into consideration when preparing the
power supply.
● Provide a power wire with a thickness of AWG16 in order to prevent the dropping of voltage. It is recommended
that twisted-pair wire be used for the power line. The thickness of AWG16 is the maximum wire diameter that
can be used with the power connector of the Reader/Writer.
● Use Class D grounding (previous Class 3 grounding) for the Reader/Writer for improved noise
resistance.
● Use the ferrite core enclosed to the Reader/ Writer for the 100VAC side of the recommended compact
DC power supply S82K-03024.
WARNING
● Be sure to connect to a power supply with a maximum power supply capacity of 24V 4.2A (100 W) or less.
In case a short-circuit failure should occur within the Reader/Writer, a burnout in the power cable may result.
Attach the ferrite core (accessory) for the cable to supply 100VAC.
DC power supply S82K-03024
）
AC side DC side
How to attach ferrite core:
Open the ferrite core. Put the cable
inside and
roll one time as shown in
the figure. Close the core in the
direction of the arrow and make
sure it locked. Set the core near the
DC power supply side.