User’s
Manual
1
Thank you for purchasing the JUXTA Signal Conditioner.
Please read through this manual before use for correct handling.
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: +81-422-52-7179 Facsimile: +81-422-52-6793
http://www.yokogawa.com/ns/juxta/im/
You can download the latest manuals from the following website:
IM 77J01E11-01E
8th Edition Aug. 2020 (YK)
CAUTIONARY NOTES FOR SAFE USE OF THE
PRODUCT
This User’s Manual should be carefully read before installing and
operating the product. Please keep this User’s Manual for future
reference.
The following symbol is used on the product and in this manual to
ensure safe usage.
WARNING
This symbol is displayed on the product when it is
necessary to refer to the User’s Manual for information
on personal and instrument safety. This symbol is
displayed in the User’s Manual to indicate precautions
to avoid danger to the operator, such as an electric
shock.
The following symbols are used only in this manual.
CAUTION
Draws attention to essential information for
understanding the operations and/or functions of the
product.
CHECKING PRODUCT SPECIFICATIONS
AND PACKAGE
(1) Checking the Model and Product Specifications
Check that the model and specifications indicated on the
nameplate attached to the main unit are as ordered.
(2) Packaged Items
Check that the package contains the following items:
• VJET: 1 unit
• Tag number label : 1 sheet
• Terminator: 1 piece (When option code “/R220” is
specified.)
• User’s Manual (this manual): 1 copy
GENERAL
The VJET is a compact, plug-in type communication converter. It
can be connected to the host devices with Ethernet by Modbus/
TCP protocol, and to the instruments with RS-485 by Modbus/
RTU protocol.
MODEL AND SUFFIX CODES
Model
Suffix codes
Description
VJET
-0 1
□
-1 0 0 0
/□
Ethernet/RS-485 Converter
-0 1
Always -01
Power supply
3
24 V DC ±10%
6
100-240 V AC/DC*
-1 0 0 0
Always -1000
Option
Blank: With socket
/SN
Without socket
/R220
Attachment of a terminator (220 Ω)
*: Operating range: 85 to 264V AC/DC
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.
●
When using the VJET for side-by-side multiple
mounting, mount the VJET in either the left or right
end of the mounted instruments.
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
Unit: mm
59±0.3
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 lock
DIN rail
Fit into here
Push
1.3 Mounting Using a Multi-mounting Base
When using a multi-mounting base, see the User’s Manual for
VJCE-01A (VJ Mounting Base for communication) (IM 77J01C51-
11E).
1.4 Using a Duct
When using a wiring duct, install the duct at leaset 30 mm away
from the top and bottom faces of the main unit.
Model VJET
Ethernet/RS-485 Converter
