User’s
Manual
Thank you for purchasing the JUXTA Signal Conditioner.
Please read through this manual before use for correct handling.
Models FA4A, FA4V
Distributor
(Non-isolated)
IM 77J08A04-01E
1st Edition Nov. 2011 (YK)
Network Solutions Business Division
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: +81-422-52-7179 Facsimile: +81-422-52-6973
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 following symbol is used on the product and in this manual to
ensure safe usage.
This symbol is displayed on the product when it is
necessary to refer to the User's Manual for information
on personal and instrument safety. This symbol is
displayed in the User's Manual to indicate precautions
to avoid danger to the operator, such as an electric
shock.
The following symbols are used only in this manual.
NOTE
Draws attention to essential information for
understanding the operations and/or functions of the
product.
CHECKING PRODUCT SPECIFICATIONS
AND PACKAGE
(1) Checking the Model and Product Specications
Check that the model and specications indicated on the
nameplate attached to the main unit are as ordered.
(2) Packaged Items
Check that the package contains the following items:
• FA4A or FA4V: 1
• Mounting block: 2
• Tag number label : 1
• Mounting screw (M4 x 0.7): 4
• User’s Manual (this manual)
MODEL AND SUFFIX CODES
Model Sufx
FA4A
FA4V
Input -A 4 to 20 mA DC
Output A 4 to 20 mA DC FA4A
Style code *B Style B
codes
-□ □ *B Distributor (Non-isolated)
Description
Transmitter power supply 26.5 ± 1.5 V DC
6 1 to 5 V DC FA4V
GENERAL
The FA4A/FA4V is a compact, front terminal connection type
distributor that is used in combination with a two-wire transmitter,
and converts the transmitter’s 4 to 20 mA DC signals into 4 to 20
mA DC current or 1 to 5 V DC voltage signals.
1
1. MOUNTING METHOD
Mounting block
FRK panel
DIN rail
Unit: mm
1.1 Installing/Uninstalling the Mounting Block
The mounting block is necessary for rack mounting or wall
mounting.
Installing the mounting block
Fit the mounting block into the grooves of the converter, and
slide it in the direction of an arrow as shown below-left.
Uninstalling the mounting block
Lift the stopper using a slotted screw-driver as shown below-
right, and pull the mounting block to remove it.
Groove (Wall mounting)
Groove
(Rack mounting)
1.2 Rack Mounting
Take the FRK panel and install it on a mounting angle as shown
below. This method is suitable for high density mounting of the
converters on a 19-inch rack panel.
Stopper
Mounting angle
1.4 DIN Rail Mounting
Place the converter so that the DIN rail ts into the upper part of
the DIN-rail groove at the rear of the converter, and push until it
clicks. The converter is xed by a slide lock (at the lower part on
the rear side of the converter).
To remove the converter, pull down the slide lock using a slotted
screw-driver.
DIN rail groove
Slide lock
1.5 Mounting Dimensions
Angle Mounting Dimensions
24.5 24.5
24.5
M4×0.7 Mounting screw
24.524.5
Mounting angle
Mounting screw (M4x0.7)
(2 screws in the package)
Mounting Dimensions
M5 screw
(4 places)
465±1
450±1
50
25
Mounting angle
25
50
Supplied spacer(50) or Wiring space(30 to 60)
1.3 Wall Mounting
Mount the converter onto the FRK panel as shown below or
mount it directly on the wall.
FRK panel
Unit: mm
Support
n×24.5+2
73 90
Wall Mounting Dimensions
24.5 24.5 24.5
24.524.5
M4×0.7 Mounting screw
90
2. INSTALLATION LOCATION
• Avoid the following environments for installation locations:
Areas with vibration, corrosive gases, dust, water, oil, solvents,
direct sunlight, radiation, a strong electric eld, and/or a strong
magnetic eld, altitude of more than 2000m above sea level.
• If there is any risk of a surge being induced into the power
line and/or signal lines due to lightning or other factors, a
dedicated lightning arrester should be used as protection for
both this converter and a eld-installed device.
• Operating temperature/humidity range: 0 to 50ºC/5 to 90%RH
(no condensation)
2
IM 77J08A04-01E 1st Edition Nov, 18. 2011-00
3. EXTERNAL WIRING
Input
WARNING
Be sure to turn OFF the power supply before wiring to
avoid the risk of electric shock. Use a tester or similar
device to ensure that no power is being supplied to a
cable to be connected.
M4 screw terminals are provided for the connection of external
signals. Attach a crimp-on lug to each wire for connection to the
terminals.
• Recommended cables: A nominal cross-sectional area of
Wiring Diagram
2
0.5 mm
or thicker for signal cables, and that of 1.25 mm2 or
thicker for power cables.
PS+
+
−
1
−
2
1
2
Power Supply
+
6
–−
7
4 5
6 7
Output
4
5
+
−
NOTE
● Do not connect anything to the terminals that are
not used in the wiring diagram. Otherwise it may
cause the malfunction or damage.
● The power line and input/output signal lines should
be installed away from noise-generating sources.
Otherwise accuracy cannot be guaranteed.
● Adhere strictly to the specications to avoid
overheating or damage. Before turning on the
power, ensure the following:
•• Power supply voltage and input signal value
applied to the product should meet the required
specications.
•• The external wiring to the terminals and wiring to
ground are as specications.
● Do not operate the product in the presence of
ammable or explosive gases or vapors.
● This product is sensitive to static electricity;
exercise care in handling. Before you operate the
product, touch a nearby metal part to discharge
static electricity.
4. MAINTENANCE
The product starts running immediately when the power is turned
on; however, it needs 10 to 15 minutes of warm-up before it
meets the specied performance.
4.1 Calibration Apparatus
• A voltage current source (Yokogawa GS200 or equivalent)
• A digital multimeter, DMM (Yokogawa 7561 or equivalent)
• A precision resistor of 250 Ω±0.01%, 1W
4.2 Calibration Procedure
1. Connect the instruments as shown below.
1
2
4 5
6 7
L+
N–
Power
supply
24V DC
Ro is used for current output (FA4A).
2. Use the voltage current source and apply the electromotive
force equivalent to 0, 25, 50, 75, and 100% of the measuring
range to the distributor.
3. Verify that the corresponding output voltages are 0, 25, 50,
75, and 100% respectively and within the specied accuracy
rating.
Input
2
+
Voltage
current
–
source
Output
Ro
+
DMM
–
4
5
Ro: a precision resistor 250Ω
Power Supply and Isolation
Power supply voltage: 24 V DC±10% (percentage ripple: less
than 5% p-p)
Current consumption : 65 mA
Insulation resistance: 100 MΩ at 500 V DC between (input and
output) and power supply.
Withstand voltage: 500 V AC/min. between (input and output)
and power supply
3
IM 77J08A04-01E 1st Edition Nov, 18. 2011-00
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