YOKOGAWA JUXTA VJP8 Series, User Manual

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2
IM 77J01P08-01E 5th Edition
1. MOUNTING METHOD
CAUTION
Insert/pull out the main unit into/from the socket
vertically to the face of socket. Otherwise the terminals
are bent and it may cause a bad contact.
1.1 Wall Mounting
Loosen the main unit-fixing screw of the product and pull out the
main unit from the socket. Fix the socket on the wall with screws.
Next, insert the main unit into the socket and fasten the main unit
with the main unit-fixing screw.
29.5 or more
22±0.2 2-M4 or
2-ø4.5 or more
Mounting Dimensions
59±0.3
Unit: mm
Main unit-fixing
screw
Socket
Main unit
Threaded hole for
fixing the main unit
Mounting
screws
1.2 DIN Rail Mounting
Insert a DIN rail into the upper part of the DIN rail groove on the
rear of the socket, and then slide the slide lock at the lower part of
the socket upwards until the socket is fixed into position as shown
below
DIN rail
DIN rail
(Rear of socket)
Slide look
DIN rail
Fit into here
Push
1.3 Mounting Using
When using a multi-mounting base, see the User's Manual for
VJCE (VJCE Mounting Base).
1.4 Using a Duct
When using a wiring duct, install the duct at least 30 mm away
from the top and bottom faces of the main unit.
2. INSTALLATION AND ENVIRONMENTAL
CONDITIONS
• Avoid the following environments for installation locations:
Areas with vibration, corrosive gases, dust, water, oil, solvents,
direct sunlight, radiation, a strong electric field, and/or a strong
magnetic field, altitude of more than 2000m above sea level,
outdoors.
• 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.
• Use indoors at an altitude of 2000 m or less.
• Operating temperature/humidity range: 0 to 50 ºC/5 to 90%RH
(no condensation)
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.
CAUTION
When power of VJP8 is turned on/off, one pulse may
be counted by the pulse input device which connects
to the VJP8.
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.
10 11
3 2 1
4
5 6
7 8 9
Power supply
11 10 8
L+ N– GND
1
3
4
1
3
4
3
4
+
–
Input
Transmitter
R: Shunt resistor
R
Transmitter PS+
+
−
PS+
+
−
+
−
Transmitter
5
2
Pulse output
Output-2
B+
A–
COM
5
2
6
RS-485
communication
+
–
9
7
Pulse output
Output-1
When receiving voltage
pulse by running a
transmitter on an
internal power supply
When receiving current
pulse by running a
transmitter on an
internal power supply
When receiving
non-voltage contact
signal or voltage pulse
CAUTION
● Do not use output-2 for the single-output type.
● The power line and input/output signal lines should
be installed away from noise-generating sources.
Other wise accuracy 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 daisy-chained inter-
ground terminal wiring.
● Use of the product ignoring the specifications may
cause 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.