Programmable
Controllers
Installation Manual for Expansion
Board FX
3G
-8AV-BD
Art. no.: 228427 ENG, Version B, 29072013
Safety Information
For qualified staff only
This manual is only intended for use by properly trained and qualified electrical
technicians who are fully acquainted with automation technology safety stan-
dards. All work with the hardware described, including system design, installa-
tion, setup, maintenance, service and testing, may only be performed by
trained electrical technicians with approved qualifications who are fully
acquainted with the applicable automation technology safety standards and
regulations.
Proper use of equipment
The programmable controllers (PLC) of the MELSEC FX
3G
series are only
intended for the specific applications explicitly described in this manual or the
manuals listed below. Please take care to observe all the installation and oper-
ating parameters specified in the manual. All products are designed, manufac-
tured, tested and documented in agreement with the safety regulations. Any
modification of the hardware or software or disregarding of the safety warn-
ings given in this manual or printed on the product can cause injury to persons
or damage to equipment or other property. Only accessories and peripherals
specifically approved by MITSUBISHI ELECTRIC may be used. Any other use or
application of the products is deemed to be improper.
Relevant safety regulations
All safety and accident prevention regulations relevant to your specific applica-
tion must be observed in the system design, installation, setup, maintenance,
servicing and testing of these products.
In this manual special warnings that are important for the proper and safe use
of the products are clearly identified as follows:
Further Information
The following manuals contain further information about the modules:
쎲
User's Manuals (Hardware Edition) for the various base units of the MELSEC
FX
3
-Series
쎲
FX
3G
/FX
3GC
/FX
3S
/FX
3U
/FX
3UC
Series Programming Manual
These manuals are available free of charge through the internet
(https://eu3a.MitsubishiElectric.com).
If you have any questions concerning the programming and operation of the
equipment described in this manual, please contact your relevant sales office
or department.
External Dimensions and Part Names
Potentiometer Configuration
To read the set value of a potentiometer, a VRRD or VRSC instruction with the
number of the corresponding potentiometer is used.
쎲
A VRRD instruction converts the analog value of the potentiometer into a
numeric value in the range from 0 to 255.
쎲
A VRSC instruction converts the analog value of the potentiometer into a
numeric value in the range from 0 to 10.
For more information about the VRRD (FNC 85) and VRSC (FNC 86) instruction,
refer to the FX
3G
/FX
3GC
/FX
3S
/FX
3U
/FX
3UC
Series Programming Manual.
Installation
Applicable PLC
An expansion board of the MELSEC FX
3G
series can be combined with a PLC of
the MELSEC FX
3G
, FX
3GE
or FX
3S
series.
Only one FX
3G
-8AV-BD can be used per base unit.
Connection to the PLC
Shown below is the connection to a FX
3G
base unit. The assembly to a FX
3GE
or
FX
3S
base unit is analogously carried out.
햲
Turn off the power.
햵
Make sure the expansion board is in parallel with the base unit and fix it to
the connector of the base unit.
햶
Fix the expansion board to the base unit using the 3 mm tapping screws
provided with the board . The tightening torque is 0.3 to 0.6 Nm.
MITSUBISHI ELECTRIC
햳
Remove the cover (right fig. "A") as
shown in the right figure.
A FX
3G
-8AV-BD cannot attached
in place of the left top cover (right
f i g . " B " ) o f t h e b a s e u n i t s
FX
3G
-40M
첸
/
첸
and FX
3G
-60M
첸
/
첸
.
햴
Attach the provided side cover
(right fig. "C").
햵
햳
A
B
C
햴
햶
E
CAUTION
쎲
Use the product in the environment within the general specifications
described in the Hardware manual. Never use the product in areas
with dust, oily smoke, conductive dusts, corrosive or flammable gas,
vibrations or impacts, or expose it to high temperature, condensa-
tion, or wind and rain.
If the product is used in such a place described above, electrical shock,
fire, malfunction, damage, or deterioration may be caused
.
쎲
When drilling screw holes or wiring, cutting chips or wire chips should
not enter ventilation slits. Such an accident may cause fire, failure or
malfunction.
쎲
Do not touch the conductive parts of the product directly.
쎲
Fix the expansion board securely to the specified connector. Incorrect
connection may cause malfunction.
DANGER:
Personnel health and injury warnings.
Failure to observe the precautions described here can
result in serious health and injury hazards.
P
E
CAUTION:
Equipment and property damage warnings.
Failure to observe the precautions described here can
result in serious damage to the equipment or
other property.
P
DANGER
Cut off all phases of the power source externally before starting the
installation or wiring work, thus avoiding electric shock or damages to
the product
���
���
���
���
Connector cover
removed
12
���
35
51.
2
All dimensions are in "mm".
Weight: 20 g
No.
Description
���
Base unit connector:
Used to connect the board to a PLC base unit
쐇
Connector cover:
Remove this cover for connecting a memory cassette or a display
module FX
3G
-5DM.
���
Direct mounting hole:
2 holes of 3.2 mm diameter (Two 3 mm tapping screws are sup-
plied with the expansion board)
���
Eight potentiometers:
These potentiometers can be used to adjust analog set points.
���
Connector:
Used to connect a memory cassette or a display module FX
3G
-5DM.
Mitsubishi Electric Europe B.V. /// FA - European Business Group ///
Germany /// Tel.: +49(0)2102-4860 /// Fax: +49(0)2102-4861120 ///
https://eu3a.MitsubishiElectric.com
0
3
2
1
4
7
6
5
0 to 7: No. of the potentiometer
