2
IM 77J01A0E11-01E
8th Edition
2. INSTALLATION AND ENVIRONMENTAL
CONDITIONS
• Avoid the following environments for installation locations:
Areas with vibrations, corrosive gases, dust, water, oil,
solvents, direct sunlight, radiation, a strong electric field,
and/or a strong magnetic field, direct radiant heat, wind,
temperature fluctuation.
• If there is any risk of a surge being induced into the power
line and/or signal lines due to lightning or other factors, a
dedicated lightning arrester should be used as protection for
both this converter and a field-installed device.
Environmental Conditions
Operating
temperature range
0 to 50°C
Operating humidity
range:
5 to 90% RH (no condensation)
Ambient Condition Avoid installation in such environments as
corrosive gas like sulfide hydrogen, dust,
sea breeze and direct sunlight.
Use indoors at an altitude of 2000 m or less.
Power Supply and Isolation
Power Supply
Rated Voltage:
24 V DC or 100-240 V AC/DC 50/60 Hz
Power Supply
Input Voltage:
24 V DC (±10%) or 100-240 V AC/DC
(−15%, +10%) 50/60 Hz
Power
consumption:
1.8 W at 24 V DC; 1.5 W at 110 V DC
2.6 VA at 100 V AC, 4.0 VA at 200 V AC
Insulation
resistance:
100 MΩ minimum at 500 V DC between
Ethernet, RS-485, power supply and
grounding terminals mutually
Withstanding
voltage:
1000 V AC for one minute between Ethernet
and RS-485 terminals mutually
2000 V AC for one minute between
(Ethernet, RS-485), power supply, and
grounding terminals mutually
3. EXTERNAL WIRING
WARNING
Be sure to turn OFF the power supply before wiring to
avoid the risk of electric shock. Use a tester or similar
device to ensure that no power is being supplied to a
cable to be connected.
Wiring should be connected to the terminals on the socket of the
product. The terminals for external connections are of M3 screws. Use
crimp-on terminal lugs for connections to the terminals.
• Recommended cables: A nominal cross-sectional area of
0.5 mm
2
or thicker for signal cables, and that of 1.25 mm
2
or
thicker for power cables.
Wiring Diagram
10
11
2
5
6
8
Power supply
11
10
8
L+
N−
GND
B+
A−
COM
5
2
6
RS-485
communication
Terminator
2
5
6
2
5
6
2
5
6
Terminating
resistor
220 Ω
Terminating
resistor
220 Ω
Grounding
B+
VJET
VJ series
Signal Conditioner
VJ series
Signal Conditioner
A−
COM
(SG)
B+
A−
COM
(SG)
B+
A−
COM
(SG)
CAUTION
●
Adhere strictly to the specifications to avoid
overheating or damage. Before turning on the
power, ensure the following:
•
Power supply voltage and input signal value
applied to the product should meet the required
specifications.
•
The external wiring to the terminals and wiring to
ground are as specifications.
●
Do not operate the product in the presence of
flammable or explosive gases or vapors.
●
This product is sensitive to static electricity;
exercise care in handling. Before you operate the
product, touch a nearby metal part to discharge
static electricity.
●
The power line and input/output signal lines should
be installed away from noise-generating sources.
Otherwise performance cannot be guaranteed.
●
Make sure to earth ground the ground terminal
through minimum resistance. The length and
thickness of the grounding cable should be as short
and thick as possible. Directly connect the lead from
the ground terminal (terminal no. 8) of the product
to the ground. Do not carry out daisychained inter-
ground terminal wiring
• Connet the VJET to the host device using either 10BASE-T
or 100BASE-TX. The VJET detects 10BASE-T or 100BASE-
TX automatically. 10BASE-T/100BASE-TX are 10 Mbps/100
Mbps Ethernet standard using twisted-pair cables. In
10BASE-T/100BASE-TX networks, personal computers and
other host devices are connected in a star pattern through a
hub.
Link LED
Connector for
10BASE-T/100BASE-TX
Ethernet
HUB
or
Devices that can be connected to Ethernet
PC
Touch panel
Activity LED
Terminator
Link LED (Lower side)
Color
Off
Amber
Green
Meaning
No Link
10 Mbps
100 Mbps
Activity LED (Upper side)
Color
Off
Amber
Green
Meaning
No Activity
Half-Duplex
Full-Duplex
The VJET has Link LED (lower side) and Activity LED (upper
side) on the connector part of the front. These LEDs turn on
in green or amber. (see the External Dimensions.)
