YOKOGAWA JUXTA VJH7 User Manual

User's
Model VJH7
Isolator (Multi-func-
Manual
tion)
(Isolated Single-output and
Isolated Dual-output Types)
Thank you for purchasing the JUXTA Signal Conditioner.
Please read through this manual before use for correct handling.
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.
For more information of the safety precautions, please refer to the
"Precautions on the Use of the JUXTA Series (IM 77J01A00-91Z1)".
The related manuals and general specifications are shown in the
table below.
Doc. Name
Precautions on the Use of the JUXTA Series (User's Manual) IM 77J01A00-91Z1
Model VJH7 Isolator (User's Manual)
Model VJH7 Isolator (General Specifications)
User's manuals in the above table are essential parts of the
product; keep it in a safe place for future reference.
This manual is intended for the following personnel;
• Engineers responsible for installation, wiring, and maintenance
of the equipment.
• Personnel responsible for normal daily operation of the
equipment.
The following symbol is used on the product and in this manual to
ensure safe usage.
WARNING
Calls attention to actions or conditions that could
cause serious or fatal injury to the user, and indicates
precautions that should be taken to prevent such
occurrences.
CAUTION
Calls attention to actions or conditions that could
cause injury to the user or damage to the instrument
or property and indicates precautions that should be
taken to prevent such occurrences.
CHECKING PRODUCT SPECIFICATIONS
AND THE CONTENTS OF PACKING
(1) Model Number and Specification Check
Check that the model number and specifications shown on the
nameplate attached on the side of the product are as ordered.
(2) Contents of the Packing
Check that the packing contains the following items:
• VJH7: 1 unit
Standard Accessories:
• Tag number label: 1 sheet
• Range label: 1 sheet
• Shunt registor (for specification of current input): 1 piece
• User's manual (IM 77J01H07-01E, this manual): 1 copy
• User's manual (IM 77J01A00-91Z1): 1 copy
IM 77J01H07-01E
5th Edition Aug. 2020
GENERAL
This plug-in isolator, which belongs to the JUXTA series of signal
conditioners, receives DC current or voltage signals and converts
them to pairs of isolated DC voltage or current signals.
•
•
Doc. Number
MODEL AND SUFFIX CODES
IM 77J01H07-01E
(This manual)
Model
GS 77J01H07-01E
VJH7
Fixed
code
Output
configuration
Power supply
Input signal
Output-1 signal
Output-2 signal
Fixed code
Option
*1: Operating range: 85 to 264V AC/DC
*2: Operating range: 12 to 36V DC
*3: DC voltage signal or DC current signal
*4: When option code /C0 or /FB is specified, the conformity to the safety
1.
1
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
You can download the latest manuals from the following website:
http://www.yokogawa.com/ns/juxta/im/
Output-2 signal is selectable from a DC voltage signal, DC
current signal, communication function (RS-485), and alarm
output (two relay contacts). (Isolated Dual-output Type)
Various parameters can be set and modified using a PC
(VJ77 (sold separately)) or Handy Terminal (JHT200 (sold
separately)) and the like.
Suffix codes
-0 x x -x x x 0 /x
-0
1
2
6
7
-A
-1
A
6
Z
A
6
P
T
N
0
/SN No socket (with socket if not specified)
/C0 HumiSeal coating
/FB Fuse bypass
and EMC standards is excluded. CE marking is not applicable.
MOUNTING METHODS
CAUTION
● Plug/disconnect the main unit into/from the
socket vertically to the socket face. Otherwise the
terminals may bend and it may cause bad contact.
● The converter shall not tilt 5 degrees or more in
either direction when installed.
● When the converter is not connected to the socket,
it is necessary to protect the socket against ingress
of dust to the connector part.
● Keep this product in a conductive bag when
plugged out, during transport or storage.
Description
Isolator (Multi-function)
Always -0
1 output
2 outputs
100-240 V AC/DC
*1
15-30 V DC
*2
0 to 50 mA DC, span is 5 mA or
more
-10 to +10 V DC, span is 0.1 V
or more
4 to 20 mA DC
1 to 5 V DC
(Custom order)
*3
4 to 20 mA DC
1 to 5 V DC
Communication function (RS485)
Alarm output (2 relay contacts)
No output-2
Always 0
*4
*4