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Model VJH7

Isolator (Multi-func-

tion)

(Isolated Single-output and 

Isolated Dual-output Types)

IM 77J01H07-01E

5th Edition Aug. 2020

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

Doc. Number 

Precautions on the Use of the JUXTA Series (User’s Manual) IM 77J01A00-91Z1

Model VJH7 Isolator (User’s Manual)

IM 77J01H07-01E

(This manual)

Model VJH7 Isolator (General Specifications)

GS 77J01H07-01E

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.

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

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.

 •

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.

MODEL AND SUFFIX CODES

Model

Suffix codes

Description

VJH7

-0

x x -x x x

0

/x

Isolator (Multi-function)

Fixed 

code

-0

Always -0

Output 

configuration

1

1 output

2

2 outputs

Power supply

6

100-240 V AC/DC

*1

7

15-30 V DC

*2

Input signal

-A

0 to 50 mA DC, span is 5 mA or 

more

-1

-10 to +10 V DC, span is 0.1 V 

or more

Output-1 signal

A

4 to 20 mA DC

6

1 to 5 V DC

Z

(Custom order)

*3

Output-2 signal

A

4 to 20 mA DC

6

1 to 5 V DC

P

Communication function (RS485)

T

Alarm output (2 relay contacts)

N

No output-2

Fixed code

0

Always 0

Option

/SN

No socket (with socket if not specified)

/C0

HumiSeal coating

*4

/FB

Fuse bypass

*4

*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 

and EMC standards is excluded. CE marking is not applicable.

1.  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.

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

http://www.yokogawa.com/ns/juxta/im/

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