Userʼs
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 77J01Q08-01E
7th 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.
Doc. Name
Doc. Number
Model VJQ8 Pulse to Analog Converter (User’s Manual) IM 77J01Q08-01E
(This manual)
Model VJQ8 Pulse to Analog Converter (General
Specifications)
GS 77J01Q08-01E
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.
CHECKCHECKING PRODUCT SPECIFICA-
TIONS 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:
• VJQ8: 1 unit
• Tag number label: 1 sheet
• Range label: 1 sheet
•
Shunt resistor (when optional code “/R□” is specified): 1
• User's Manual (this manual): 1 copy
GENERAL
This plug-in type pulse to analog converter receives contact
pulse, voltage pulse, or current pulse from the field and converts
the signal into isolated DC current or voltage signals.
• Output-2 can be selected from DC voltage signal, DC current
signal, communication function (RS-485), or alarm output (2
relay contacts).
• Various parameters such as input range can be set and
modified using a PC (VJ77(sold separately)) or Handy
Terminal (JHT200(sold separately)) and the like.
MODEL AND SUFFIX CODES
Model
Suffix codes
Description
VJQ8
-0
□ □ -□ □ □
0
/□
Pulse to Analog Converter
(Multi-function)
-0
Always 0
Output
configuration
1
1 output
2
2 outputs
Power supply
6
100-240 V AC/DC
(*1)
7
15-30V DC
(*2)
Transmitter Power
Supply
-1
12V DC±10%
-2
24V DC±10%
Output-1
A
4 to 20mA DC
B
2 to 10mA DC
C
1 to 5mA DC
D
0 to 20mA DC
E
0 to 16mA DC
F
0 to 10mA DC
G
0 to 1mA DC
1
0 to 10mV DC
2
0 to 100mV DC
3
0 to 1V DC
4
0 to 10V DC
5
0 to 5V DC
6
1 to 5 V DC
7
−10 to +10V DC
Z
(Custom Order)
(*3)
Output-2
A
4 to 20mA DC
6
1 to 5V DC
P
Communication function
(RS-485)
T
Alarm output
(2 relay contacts)
N
None
0
Always 0
Options
Blank: With socket
/SN
Without socket
/R100
With 100 Ω shunt resistor
(*4)
/R220
With 220 Ω shunt resistor
(*4)
/R510
With 510 Ω shunt resistor
(*4)
/R1000
With 1000 Ω shunt resistor
(*4)
/R2200
With 2200 Ω shunt resistor
(*4)
*1 Operating range: 85-264 V
*2 Operating range: 12-36 V
*3 DC voltage signal or DC current signal
*4 Specify when current pulse input
Model VJQ8
Pulse to Analog Converter
(Multi-function)
(Isolated Single-output and Isolated Dual-
output Types)
