(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 77J01Q08-01E
4th 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: +81-422-52-6619
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:
• VJQ8: 1
• Tag number label: 1
• Range label: 1
• Shunt resistor (when optional code “/R□” is specied): 1
• User's Manual (this manual)
GENERAL
This plug-in type pulse to analog converter receives contact
pulse, voltage pulse, or current pulse from the eld and converts
the signal into isolated DC current or voltage signals.
• Output-2 can be selected from DC voltage signal, DC current
signal, communication function (RS-485), or alarm output (2
relay contacts).
• Various parameters such as input range can be set and
modied using a PC (VJ77) or Handy Terminal (JHT200 and
the like).
MODEL AND SUFFIX CODES
ModelSufx codesDescription
VJQ8-0 □ □ -□ □ □ 0 /□□Pulse to Analog Converter
Output
conguration
Power supply6100-240 V AC/DC
Transmitter Power
Supply
Output-1A4 to 20mA DC
Output-2A4 to 20mA DC
OptionsBlank: With socket
*1 Operating range: 85-264 V
*2 Operating range: 12-36 V
*3 DC voltage signal or DC current signal
*4 Specify when current pulse input
-0Always 0
1Single
2Dual
715-30V DC
-112V DC±10%
-224V DC±10%
B2 to 10mA DC
C1 to 5mA DC
D0 to 20mA DC
E0 to 16mA DC
F0 to 10mA DC
G0 to 1mA DC
10 to 10mV DC
20 to 100mV DC
30 to 1V DC
40 to 10V DC
50 to 5V DC
61 to 5 V DC
7−10 to +10V DC
Z(Custom Order)
61 to 5V DC
PCommunication function
TAlarm output
NNone
0Always 0
(RS-485)
(2 relay contacts)
/SNWithout socket
/R100 With 100 Ω shunt resistor
/R220 With 220 Ω shunt resistor
/R510 With 510 Ω shunt resistor
/R1000 With 1000 Ω shunt resistor
(*4)
/R2200 With 2200 Ω shunt resistor
(*4)
[STYLE: S1]
(*1)
(*2)
(*3)
(*4)
(*4)
(*4)
1
1. MOUNTING METHOD
Mounting
Input
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
2
or thicker for signal cables, and that of 1.25 mm2 or
0.5 mm
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.
Mounting Dimensions
Socket
59±0.3
29.5 or more
22±0.2
Unit: mm
2-M4 or
2-ø4.5 or more
Main unit
screws
Main unit-fixing
screw
Threaded hole for
fixing the 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
Fit into here
DIN rail
DIN rail
Push
(Rear of socket)
DIN rail
Slide look
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 least 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)
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.
When receiving
non-voltage contact
signal or voltage
pulse
Transmitter
Shunt resistor
(at current pulse input)
Power supply
11108
N–
L+
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 daisy-chained 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.
● The use of inductance (L) loads such as auxiliary
relays and solenoid valves causes malfunction or
relay failure; always insert a CR lter or diode for
spark-removal into the line in parallel with the load.
Recommended CR
● 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.
When receiving
current pulse by
running a transmiter
on an internal power
supply
Transmitter
+
3
−
4
R: Shunt resistor
GND
When receiving
voltage pulse by
running a transmiter
on an internal power
supply
PS+
Transmitter
1
+
3
−
R
4
3 2
1
56
4
789
1011
PS+
1
+
3
−
4
Output-2
Analog output
+
2
–
5
Output-1
Analog output
+
7
–
9
Alarm output
ALM1
2
COM
5
ALM2
6
RS-485
Communication
the product should meet the required specications.
are as specications.
• C: 0.5 to 1F against contact current 1A
• R: 0.5 to 1 against contact voltage 1V
B+
2
A–
5
6
COM
2
IM 77J01Q08-01E 4th 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.
Communications connector
Alarm-1 LED
Alarm-2 LED
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]
Modular jack conversion
adapter (E9786WH)
[Provided with VJ77]
Dedicated adapter (E9789HA)
[Provided with VJ77]
Dedicated cable (E9786WK)
[Provided with VJ77]
5.1.4 Sample Time
When the sample mode is set to “MANUAL”, set the sample
time in numerical value in [D21: SAMPLE TIME], Sample
time setting range: 0.1 to 100 seconds, by 0.1 second When
the sample mode is set to “AUTO”, the sample time is forcibly
decided on the following conditions.
0.1 second when F
(1/F
) 100 seconds when F
100
100 seconds when F
(100% input frequency) is 1kHz or more
100
100
is over 1Hz and below 1kHz
100
is 1Hz or less.
5.1.5 Input Range
Set the 0% value of input range in [D22: INPUT1L_RNG],
and 100% of input range in [D23: INPUT1H_RNG] within the
numerically specied range.
Note
In case the input range is changed after factory-ship,
the instrument may not work within the rated accuracy
range depending on the changed input range. Perform
the adjustment following the maintenance of this
instruction manual after changing the input range.
5.1.6 Input Filter
When the chattering noise is generated in input, the input lter
is used to restrain the inuence. Select and set “ON” in [D50: INPUT FILTER], then the input lter for time constant of about
10ms will be connected.
5.1.7 Direction of Output Action
Analog output signals can be reversed. To reverse the
signal from output-1, set [D38: OUT1 DR] to REVERSE. For
output-2, set [D39 OUT2 DR] to REVERSE. To return the
output-1 signal to normal, set D38: OUT1 DR to DIRECT. For
output-2, set D39: OUT2 DR to DIRECT.
5. SETTING PARAMETERS
Set the parameters using a PC (VJ77 Parameter Setting Tool) or
the Handy Terminal. Refer to “8. 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 [ ].
5.1 Settings Related to Inputs and Outputs
5.1.1 Input Range Unit
When referring and setting the input range, select and set “Hz”
or “kHz” in [D10: UNIT]. Select “kHz” when input range is over
32000Hz.
5.1.2 Conversion Mode
Select and set the action of the instrument from “F/V
CONVERTER” (F/V conversion) or “INTEGRATOR” (pulse
integrator) in [D19: SELECT MODE].
F/V converter: Set when converting 0 to 100% of frequency
input to 0 to 100% of analog output, and
outputting it.
INTEGRATOR: Set when converting 0 to 100% of frequency
in put to 0 to 100% of analog output after
computing the average frequency from the
pulse number integrated per sample time, and
outputting it.
5.1.3 Sample Mode
Select and set “AUTO” or “MANUAL” in [D20: SAMPLE
MODE], when the conversion mode is set to “INTEGRATOR.”
AUTO:Outputs the sample time forcibly on the provided
MANUAL: Sets the sample time within setting range.
3
IM 77J01Q08-01E 4th Edition Mar. 02, 2012-00
5.2 Settings Related to Communication
ON
Function
Set the following parameters when output-2 is specied
for communication function. For more information on the
communication function, see the Instruction Manual for VJ Series
Communication Function (IM 77J1J11-01E).
5.2.1 Communication Protocol
Set the communication protocol by selecting from among
PCLINK, PC-LINK WITH SUM, MODBUS ASCII, MODBUS
RTU, and LADDER in [F01: PROTOCOL].
5.2.2 Communication Address
Set the address number of the isolator numerically in a range
of 1 to 99 in [F02: ADDRESS].
5.2.3 Baud Rate
Set the baud rate by selecting from among 1200, 2400, 4800,
and 9600 bps in [F03: BAUD RATE].
5.2.4 Parity
Select and set NONE, EVEN, or ODD in [F04: PARITY].
5.2.5 Data Length
Select and set 7 bits or 8 bits in [F05: DATA LEN].
5.2.6 Stop Bit
Select and set 1 bit or 2 bits in [F06: STOP BIT].
5.2.7 Input Decimal Point Position
Number of digits of decimal places can be set.
Select and set among 0 to 5 digits in [F07: INPUT DEC PT].
5.3 Settings Related to Alarm Output
Set the following parameters when output-2 is specied for alarm
output.
5.3.1 Alarm Setpoints
Set the alarm setpoints of alarm-1 and alarm-2 in [E03: SET
POINT1] and [E04: SET POINT2] numerically.
Setting range: A range of 0 to 100% of input range
Setting resolution: 0.1%
5.3.2 Direction of Alarm Action
Select the direction of alarm-1 action and that of alarm-2
action from among HIGH ALM (high-limit alarm) and LOW
ALM (low-limit alarm) and set each in [E05: ALM1 ACTION]
(direction of alarm-1 action) or [E06: ALM2 ACTION]
(direction of alarm-2 action).
To activate alarm status when input signal ≥ alarm setpoint,
select HIGH ALM.
To activate alarm status when input signal ≤ alarm setpoint,
select LOW ALM.
5.3.3 Hysteresis
Set alarm-1 and alarm-2 hysteresis, in [E09: HYSTERESIS1]
and [E10: HYSTERESIS2]. Hysteresis is a value added to the
alarm setpoint in order for an alarm status to be released (to
normal) after the alarm status has been activated. The alarm
status will be released in the following conditions, depending
on the direction of alarm action.
* When HIGH ALM (high-limit alarm) is set: Alarm is released
when input signal < (alarm setpoint - hysteresis).
* When LOW ALM (low-limit alarm) is set: Alarm is released
when input signal > (alarm setpoint + hysteresis).
Setting range: A range of 0 to 100% of input range
Setting resolution: 0.1%
5.3.4 Alarm ON Delay and Alarm OFF Delay
Set alarm-1 and alarm-2 ON delays in [E11: ON DELAY1] and
[E12: ON DELAY2] and then alarm-1 and alarm-2 OFF delays
in [E13: OFF DELAY1] and [E14: OFF DELAY2]. An alarm
ON delay is a delay time from the establishment of alarm
condition to alarm output; an alarm OFF delay is a delay time
from the establishment of return-to-normal condition to output.
Setting range: 0 to 999 seconds
Setting resolution: 1 second (Note that about 0.2 second will
be added to set time to prevent erroneous operation.)
For example, when an alarm ON delay is set to 1 second,
alarm output is generated if alarm status continues for
more than 1 second after the input value exceeds the
alarm setpoint. Further, when an alarm OFF delay is set
to 2 seconds, alarm output is released if normal condition
continues for more than 2 seconds after the input value has
returned to normal from the alarm status.
5.3.5 Direction of Relay Action
Set the direction of relay energizing in alarm-1 normal
condition and alarm-2 normal condition by selecting from
among NRM DEENERGIZED (de-energized under normal
condition) and NRM ENERGIZED (energized under normal
condition) in [E15: RL1 ACTION] and [E16: RL2 ACTION]
and set them.
6. DESCRIPTION OF ALARM ACTIONS
This chapter describes examples of alarm actions under the
following conditions.
ItemAlarm-1Alarm-2
Direction of alarm
action
Alarm settingE03: SET POINT180%E04 : SET POINT2 15%
HysteresisE09: HYSTERESIS1 10%E10 : HYSTERESIS2 5%
Alarm ON delayE11: ON DELAY11 sec.E12 : ON DELAY2 3 sec.
Alarm OFF delayE13: OFF DELAY1 2 sec.E14 : OFF DELAY2 4 sec.
Description of alarm
actions
Parameter
E05: ALM1 ACTION High-limit
The alarm sounds if the
condition where the input value
is 80% or more of high-limit
alarm continues for more than 1
second. After the alarm sounds,
when the condition where
input value is less than 70%of
the high-limit alarm continues
for more than 2 seconds, the
status returns to normal
Alarm conditions
established
[%]
100
80
60
40
20
15
0
Alarm-1 action
Alarm-2 action
High-limit alarm ON
Normal conditions established
[2]
[1]
1 sec.
Alarm-1
ON delay
Alarm-2 hysteresis (5%)
Normal
Alarm-1
OFF delay
Alarm-2 setpoint (15%)
Alarm
High-limit alarm OFF
2 sec.
NormalNormal
Setpoint
Parameter
E06: ALM2 ACTION Low-limit
alarm
The alarm sounds if the
condition where the input value
is 15% or less of low-limit
alarm continues for more than
3 seconds. After the alarm
sounds, when the condition
where input value is more than
20% of the low-limit alarm
continues for more than 4
seconds, the status returns to
normal.
[1]: Alarm status does not continue for more than 1 second after
the alarm conditions are established at alarm-1.
[2]: Normal status does not continue for more than 2 seconds after
the normal conditions are established at alarm-1.
[3]: Alarm status does not continue for more than 3 seconds after
the alarm conditions are established at alarm-2.
[4]: Normal status does not continue for more than 4 seconds after
the normal conditions are established at alarm-2.
Alarm-1 setpoint (80%)
Alarm-1 hysteresis (10%)
[3]
Low-limit alarm ON
Normal conditions
Alarm-2
ON delay
established
3 sec.
Normal
[4]
Alarm
Alarm conditions
established
Setpoint
alarm
Low-limit alarm OFF
Alarm-2
OFF delay
4 sec.
Elapsed time
7. TIMING CHART OF PULSE
INTEGRATION OPERATION
This timing chart shows an example of the integration operation
where input frequency is 0 to 10 Hz and sampling time is 2 sec.
10%
ON
ON ON ON ON
20%
5%5%
Input pulse
Sampling
interval
Analog
output
ON ON
2 sec
0%
1 sec.
4
IM 77J01Q08-01E 4th Edition Mar. 02, 2012-00
8. LIST OF PARAMETERS
Parameter DisplayItem
MODELModel
TAG NOTag no.
SELF CHKSelf-check result
ADISPLAY1Display1
A01 INPUT1Input value 1
A05 OUTPUT1Output value 1
A06 OUTPUT2Output value 2
A07 ALM1 STATUSAlarm-1 status
A08 ALM2 STATUSAlarm-2 status
A31 COUNTER1Integrating counter 1
A32 COUNTER2Integrating counter 2
A33 COUNTER3Integrating counter 3
A34 COUNTER4Integrating counter 4
A54 STATUSStatus
A56 REV NORev. no.
A58 MENU REVMENU REV
A60 SELF CHKSelf-check result
BDISPLAY2Display2
B01 INPUT1Input value 1
B05 OUTPUT1Output value 1
B06 OUTPUT2Output value 2
B07 ALM1 STATUSAlarm-1 status
B08 ALM2 STATUSAlarm-2 status
B31 COUNTER1Integrating counter 1
B32 COUNTER2Integrating counter 2
B33 COUNTER3Integrating counter 3
B34 COUNTER4Integrating counter 4
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
D10 UNITRange unit
D13 LOW CUTLow input cut point
D19 SELECT MODEConversion mode
D20 SAMPLE MODESample mode
D21 SAMPLE TIMESample time
D22 INPUT1 L_RNGInput low range
D23 INPUT1 H_RNGInput high range
D38 OUT1 DRDirection of output-1 action
D39 OUT2 DRDirection of output-1 action
D50 INPUT FILTERInput lter
D60 SELF CHKSelf-check result
ESET(ALM)Setting (alarm output)
E03 SET POINT1Alarm-1 setting
E04 SET POINT2Alarm-2 setting
E05 ALM1 ACTIONDirection of alarm-1 action
E06 ALM2 ACTIONDirection of alarm-2 action
E09 HYSTERESIS1Alarm-1 hysteresis
E10 HYSTERESIS2Alarm-2 hysteresis
E11 ON DELAY1Alarm-1 ON delay setting
E12 ON DELAY2Alarm-2 ON delay setting
E13 OFF DELAY1Alarm-1 OFF delay setting
E14 OFF DELAY2Alarm-2 OFF delay setting
E15 RL1 ACTIONDirection of alarm-1 relay
Q05 ALM2 TESTForced output (alarm)
Q60 SELF CHKSelf-check result
*1 Instantaneous frequency is displayed even if conversion
mode is pulse integration.
*2 The Status is displayed for service personnel to see
history records.
*3 There are items not displayed depending on what output-2
is specied.
9. 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.
*1
*3
*3
*3
9.1 Calibration Apparatus
• A calibrator (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.)
9.2 Calibration Procedure
1. Connect the instruments as shown below. First adjust the
output-1 signal and then the output-2 signal.
Output-2
2
3 2
Input
Calibrator
Power supply
L+
11108
N–
+
–
GND
3
4
1
56
4
789
1011
R: For current output using 250 Ω
2. Use the calibrator and apply input signals equivalent to 0, 25,
50, 75, and 100% of the input span to the product.
3. 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.)
For alarm output, check the relay action by the alarm indicator
lamp or resistance of output terminals.
• Use the setting tool (VJ77 Parameter Setting Tool or JHT200
Handy Terminal) to adjust the input/output signals.
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]
+
R
Calibrator
–
5
Alarm-1
ALM1
2
5
COM
Alarm-2
ALM2
6
5
COM
Output-1
7
+
R
Calibrator
–
9
precision resistor
+
Calibrator
–
+
Calibrator
–
5
IM 77J01Q08-01E 4th Edition Mar. 02, 2012-00
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.
Entrance
Cable
Internal Wiring
III
IV
I
Outlet
II
T
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.
Appliances,
portable
equipments,
etc.
IIICAT.III For measurements performed in
the building installation.
Distribution
board, circuit
breaker, etc.
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.
(Note)
Overhead
wire, cable
systems, etc.
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.
6
IM 77J01Q08-01E 4th Edition Mar. 02, 2012-00
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