(Isolated Single-output and Isolated Dualoutput Types)
Thank you for purchasing the JUXTA Signal Conditioner.
Please read through this manual before use for correct handling.
IM 77J01S11-01E
2nd Edition Mar. 2012 (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. 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:
VJSS: 1
Tag number label: 1
Shunt resistor (for current input): 2
User's Manual (this manual)
MODEL AND SUFFIX CODES
ModelSufx codesDescription
VJSS
Selection
rule
Output
conguration
Power supply6100-240 V AC/DC
Input signalA4 to 20 mA DC
Output-1 signalA4 to 20 mA DC
Output-2 signalA4 to 20 mA DC
Options/SN Without socket
*1 Operating range: 85-264 V
*2 Operating range: 12-36 V
*3 DC voltage signal or DC current signal
- - 0/
-HSelects “high” signals
-L
1Single
2Dual
715-30 V DC
61 to 5 V DC
B2 to 10 mA DC
C1 to 5 mA DC
D0 to 20 mA DC
E0 to 16 mA DC
F0 to 10 mA DC
G0 to 1 mA DC
10 to 10 mV DC
20 to 100 mV DC
30 to 1 V DC
40 to 10 V DC
50 to 5 V DC
61 to 5 V DC
7−10 to 10 V DC
Z(Custom order)
61 to 5 V DC
NNone
0Always 0
High/Low Signal Selector
Selects “low” signals
Blank: With socket
[STYLE: S3]
(*2)
(*3)
(*1)
GENERAL
The VJSS is a compact, plug-in high/low signal selector that
selects the higher or lower of two DC input signals and converts it
into an isolated DC voltage or DC current signals.
1
1. MOUNTING METHOD
Mounting
External receiving resistor
Note
Insert/pull out the main unit into/from the socket
vertically to the face of socket. Otherwise the terminals
are bent and it may cause a bad contact.
Wiring should be connected to the terminals on the socket
of the product. The terminals for external connections are of
M3 screws. Use crimp-on terminal lugs for connections to the
terminals.
• Recommended cables: A nominal cross-sectional area of
0.5 mm2 or thicker for signal cables, and that of 1.25 mm2 or
thicker for power cables.
1.1 Wall Mounting
Loosen the main unit-xing screw of the product and pull out the
main unit from the socket. Fix the socket on the wall with screws.
Next, insert the main unit into the socket and fasten the main unit
with the main unit-xing screw.
Main unit
1.2 DIN Rail Mounting
Insert a DIN rail into the upper part of the DIN rail groove on the
rear of the socket, and then slide the slide lock at the lower part of
the socket upwards until the socket is xed into position as shown
below
1.3 Mounting Using
When using a multi-mounting base, see the User’s Manual for
VJCE (VJCE Mounting Base).
1.4 Using a Duct
When using a wiring duct, install the duct at leaset 30 mm away
from the top and bottom faces of the main unit.
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 50C/5 to 90%RH
(no condensation)
screws
Main unit-fixing
screw
DIN rail
Threaded hole for
fixing the main unit
Mounting Dimensions
Socket
59±0.3
Push
(Rear of socket)
29.5 or more
22±0.2
Fit into here
DIN rail
DIN rail
Slide look
Unit: mm
2-M4 or
2-ø4.5 or more
(Shunt resistor
for current input)
Input-1
+
R
–
Input-2
+
R
–
R: External receiving resistor
for current input
Note
● Do not use output-2 for the single-output type.
● The power line and input/output signal lines should
be installed away from noise-generating sources.
Other wise accuracy cannot be guaranteed.
● The grounding resistance must be 100 Ω (JIS
Class D grounding). The length and thickness of
the grounding cable should be as short and thick
as possible. Directly connect the lead from the
ground terminal (terminal no. 8) of the product to the
ground. Do not carry out daisychained inter-ground
terminal wiring
● Use of the product ignoring the specications may
cause overheating or damage. Before turning on the
power, ensure the following:
Power supply voltage and input signal value applied to
The external wiring to the terminals and wiring to ground
● Do not operate the product in the presence of
ammable or explosive gases or vapors. To do so is
highly dangerous.
● The product is sensitive to static electricity;
exercise care in operating it. Before you operate
the product, touch a nearby metal part to discharge
static electricity.
● For 15-30 V DC (±20%) power supply, as a safety
measure, always install a circuit breaker (an IEC
60947-compatible product, 1 A, 30 V DC) in an easily
accessible location near the instrument. Moreover,
provide indication that the switch is a device for
turning off the power to the instrument.
3 2
1
56
1
3
4
6
4
789
1011
Power Supply
11108
N–
L+
GND
Output-2
+
2
–
5
Output-1
+
7
–
9
the product should meet the required specications.
are as specications.
3. EXTERNAL WIRING
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.
2
IM 77J01S11-01E 2nd Edition Mar, 02. 2012-00
4. DESCRIPTION OF FRONT PANEL
How to connect with the setting tool
4.1 Front Panel
The communications connector in the front panel is used for
setting up parameters through a PC (VJ77 PC-based Parameters
Setting Tool) or the Handy Terminal.
Connector for
communication
4.2 Connector for Communication
Use the connector for communication when setting the
parameters using a PC (VJ77 Parameters Setting Tool) or the
Handy Terminal
JUXTA communication cable
with 5-pin connector (F9182EE)
JHT200
Handy Terminal
PC which is installed
with the VJ77
• Use the VJ77 of version R1.04 or later.
• The modular jack conversion adapter does not come with the
JHT200 Handy Terminal. It is sold separately.
[Provided with VJ77 and JHT200]
Dedicated cable (E9786WK)
[Provided with VJ77]
5. SETTING PARAMETERS
Set the parameters using a PC (VJ77 Parameter Setting Tool) or
the Handy Terminal. Refer to “6. LIST OF PARAMETERS” in this
manual and the User’s Manual for VJ77 PC-based Parameters
Setting Tool (IM 77J01J77-01E) or the User’s Manual for JHT200
Handy Terminal (IM JF81-02E). Parameters are indicated inside
the [ ].
Setting High Selector/Low Selector
• Set the high selector or low selector in the xed constant
[H01:CONST].
• High selector: H01=100.0
• Low selector: H01=0.000
Note
Do not change the parameter set value of the other
than above.
Modular jack conversion
adapter (E9786WH)
[Provided with VJ77]
Dedicated adapter (E9789HA)
[Provided with VJ77]
6. LIST OF PARAMETERS
Parameter DisplayItem
MODELModel
TAG NOTag No.
SELF CHKSelf-check result
ADISPLAY1Display 1
A01 INPUT1Input value 1
A02 INPUT2Input value 2
A05 OUTPUT1Output value 1
A06 OUTPUT2Output value 2
A11 T1Temporary memory 1
A12 T2Temporary memory 2
A13 T3Temporary memory 3
A14 T4Temporary memory 4
A15 DIDigital input
A16 DODigital output
A17 LOADLoad factor
A54 STATUSStatus
A56 REV NOREV No.
A58 MENU REVMENU REV
A60 SELF CHKSelf-check result
BDISPLAY2Display2
B01 INPUT1Input value 1
B02 INPUT2Input value 2
B05 OUTPUT1Output value 1
B06 OUTPUT2Output value 2
B11 T1Temporary memory 1
B12 T2Temporary memory 2
B13 T3Temporary memory 3
B14 T4Temporary memory 4
B15 DIDigital input
B16 DODigital output
B17 LOADLoad factor
B60 SELF CHKSelf-check result
DSET (I/O)Setting (I/O)
D01 TAG NO.1Tag No.-1
D02 TAG NO.2Tag No.-2
D03 COMMENT1Comment-1
D04 COMMENT2Comment-2
D20 INP TYPEInput type
D22 IN RESISTInput resistor
D27 INPUT1 L_RNGInput-1 low range
D28 INPUT1 H_RNGInput-1 high range
D29 INPUT2 L_RNGInput-2 low range
D30 INPUT2 H_RNGInput-2 high range
D38 OUT1 L_RNGOutput-1 low range
D39 OUT1 H_RNGOutput-1 high range
D40 OUT2 L_RNGOutput-2 low range
D41 OUT2 H_RNGOutput-2 high range
D46 PRGM SELECTProgram selection
D47 CYCLE TIMEComputation cycle
D60 SELF CHKSelf-check result
GPROGRAMProgram
G01 PROGRAMProgram
G02 PROGRAMProgram
↓ ↓ ↓
G59 PROGRAMProgram
G60 SELF CHKSelf-check result
HCONSTFixed constant
H01 CONSTFixed constant
H02 CONSTFixed constant
↓ ↓ ↓
H59 CONSTFixed constant
H60 SELF CHKSelf-check result
PADJUSTAdjustment
P08 IN1 ZERO ADJInput-1 zero adjustment
P09 IN1 SPAN ADJInput-1 span adjustment
P10 IN2 ZERO ADJInput-2 zero adjustment
P11 IN2 SPAN ADJInput-2 span adjustment
P26 OUT1ZERO ADJOutput-1 zero adjustment
P27 OUT1SPAN ADJOutput-1 span adjustment
P28 OUT2ZERO ADJOutput-2 zero adjustment
P29 OUT2SPAN ADJOutput-2 span adjustment
P60 SELF CHKSelf-check result
*1 The displayed status is to let the service staff know the past
records of the product.
*2 There are items not displayed depending on what output-2 is
specied.
*3 The parameters are the items to be set at the factory.
*1
*2
*1
*1
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
*3
3
IM 77J01S11-01E 2nd Edition Mar, 02. 2012-00
7. MAINTENANCE
External receiving resistor
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.
7.1 Calibration Apparatus
• Two DC voltage/current standard (Yokogawa 7651 or the
equivalent)
• A digital multimeter (Yokogawa 7561 or equivalent)
• A precision resistor of 250 Ω ±0.01%, 1W
• Setting tool for adjustment (Refer to “4.2 Connector for
Communication” in this manual.)
7.2 Calibration Procedure
1. Connect the instruments as shown below.
(Shunt resistor
for current input)
Input-1
Input-2
+
1
Ri
–
3
+
4
Ri
–
6
Voltage and
current
generator
Voltage and
current
generator
Ri: External receiving resistor
for current input
2. For the high signal selector: VJSS-H□□-□□□0
Apply the input signal equivalent to -5 to 0% of the input span
to one of two inputs of the converter from a voltage current
source.
For the low signal selector: VJSS-L □□ - □□□ 0
Apply the input signal equivalent to 100 to 105% of the input
span to one of two inputs of the converter from a voltage
current source.
3. Apply the input signal equivalent to 0, 25, 50, 75, and 100%
of the input span to one of two inputs of the converter from a
voltage current source.
4. Check to see the corresponding output voltages are 0, 25, 50,
75, and 100% respectively and within the specied accuracy
rating. “R” is used for current output.
• Use the setting tool (VJ77 Parameter Setting Tool or JHT200
Handy Terminal) to adjust the input/output signals.
Input Adjustment Procedure
(1) Input the value equivalent to 0% value of the input range to
the high/low signal selector.
(2) Call the display item (A: DISPLAY1) to check the input value
in A01: INPUT1.
(3) If the adjustment is necessary, call the adjustment item (P:
ADJUST).
(4) Select P08: IN1 ZERO ADJ to enter the adjustment mode.
Select EXECUTE (adjustment) for adjustment. (If RESET is
selected, the adjusted value is reset to the factory-set default.)
(5) Input the value equivalent to 100% value of input range.
(6) Call the display item (A: DISPLAY1) to check the input value
in A01: INPUT1.
(7) If the adjustment is necessary, call the adjustment item (P:
ADJUST).
(8) Select P09: IN1 SPAN ADJ to enter the adjustment mode.
Select EXECUTE (adjustment) for adjustment. (If RESET is
selected, the adjusted value is reset to the factory-set default.)
• Input-2 can be adjusted by the same operation as the above.
3 2
1
56
4
789
1011
Power Supply
11108
N–
L+
Ro: For current output using
GND
Output-2
2
+
DMM
R
–
5
Output-1
+
7
R
DMM
–
9
250 Ω precision resistor
Output Adjustment Procedure
(1) When adjusting 0% value of output, call the adjustment item
(P:ADJUST) to select [P26:OUT1ZERO ADJ].
(2) If there is a positive deviation, correct it by setting a negative
value to offset the deviation. If there is a negative deviation,
correct it by setting a positive value.
*: The 100% value of output-1 and the 0%/100% value of
output-2 can be adjusted by the same operation as the above.
For adjustment using a setting tool, refer to the User’s Manual
for each setting tool and “6. LIST OF PARAMETERS” in this
manual.
User’s Manual for VJ77 [Document No.: IM 77J01J77-01E];
however, use the VJ77 of version R1.04 or later.
User’s Manual for JHT200 [Document No.: IM JF81-02E]
SAFETY AND EMC STANDARDS
CAUTION
This instrument is for Measurement Category I (CAT.I).
Do not use it for measurements in locations falling
under Measurement Categories II, III, and IV.
Internal Wiring
Entrance
Cable
IV
III
Outlet
I
Measurement
DescriptionRemarks
category
ICAT.I For measurements performed
on circuits not directly connected
to MAINS.
IICAT.II For measurements performed
on circuits directly connected to
the low-voltage installation.
IIICAT.III For measurements performed in
the building installation.
IVCAT.IV For measurements performed
at the source of the low-voltage
installation.
An analog input signal is measurement category I (CAT.I).
Rated transient overvoltage: 1500 V
NoteThis is a reference safety standard value for
Measurement Category I of IEC/EN/CSA/UL61010-1.
This value is not necessarily a guarantee of instrument
performance.
EMC standards: Complies with EN61326.
The above conformed instrument is only for voltage of 15 to 30
V DC.
* The instrument continues to operate at a measurement
accuracy of within ±20% of the range during testing.
II
T
Appliances,
portable
equipments,
etc.
Distribution
board, circuit
breaker, etc.
Overhead
wire, cable
systems, etc.
(Note)
4
IM 77J01S11-01E 2nd Edition Mar, 02. 2012-00
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