YOKOGAWA JUXTA MA7 User Manual

User's
Model MA7
Distributor
Manual
(Unified Signal Type)
Please read through this User's Manual before use for correct handling.
Please keep this User's Manual for future reference.
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 related manuals and general specifications are shown in the
table below.
Doc. Name
Model MA7 Distributor (User's Manual)
Model MA7 Distributor (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.
QR Code
The product has a QR Code pasted for efficient plant
maintenance work and asset information management.
It enables confirming the specifications of purchased products
and user's manuals.
For more details, please refer to the following URL.
https://www.yokogawa.com/qr-code
* QR Code is a registered trademark of DENSO WAVE
INCORPORATED.
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 packing carton contains the following items:
• MA7: 1 unit
Standard Accessories:
• Spacer (used for DIN rail mounting): 1 piece
• Socket (A1653MR): 1 piece (when /SN option is not
specified.)
• User's Manual (this manual: IM 77J04A07-01E): 1 copy
IM 77J04A07-01E
4th Edition June 2021 (YK)
Doc. Number
IM 77J04A07-01E
(This manual)
GS 77J04A07-01E
1
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: +81-422-52-7179 Facsimile: +81-422-52-6793
You can download the latest manuals from the following website:
http://www.yokogawa.com/ns/juxta/im/
GENERAL
The MA7 is a plug-in type distributor that is used in combination
with a two-wire type transmitter to convert the transmitter's 4 to
20 mA DC signals into isolated 4 to 20 mA DC current or 1 to 5 V
DC voltage signals.
MODEL AND SUFFIX CODES
Model Suffix codes Description
MA7 -A x -x /x Distributor
Input 4 to 20 mA DC
-A
signal Transmitter power supply: 25.25±0.25 V DC
A 4 to 20 mA DC
Output signal
6
1 to 5 V DC
-3 24 V DC ±10%
Power supply -4 100-130 V AC/DC
-5
200-240 V AC
/SN No socket (with socket if not specified)
Option /C0 Coating
/FB Fuse bypass
*1 Operating range: 85 to 150 V AC/DC
*2 Operating range: 170 to 264 V AC
Note: An exclusive User's Manual might be attached to the
products whose suffix codes or option codes contain the code
"Z" (made to customers' specifications). Please read it along
with this manual.
*1
*2