Juxta VJQ7 User manual

User’s
Manual
Model VJQ7
Analog to Pulse Converter (Multi-function)
(Isolated Single-output and Isolated Dual-output Types)
IM 77J01Q17-01E
IM 77J01Q17-01E
1st Edition Feb. 2000
4th Edition Mar. 2016
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 THE CONTENTS OF PACKING
(1)ModelNumberandSpecicationCheck
 Checkthatthemodelnumberandspecicationsshown
on the nameplate attached on the side of the product are
as ordered.
(2)ContentsofthePacking
 Checkthatthepackingcontainsthefollowingitems:
• VJQ7:1unit
• Tag number label, 1 sheet
• Rangelabel:1sheet
• Shuntregistor(forspecicationofcurrentinput),1
piece
• User'sManual(thismanual):1copy
GENERAL
The VJQ7 is a plug-in analog/pulse Transmitter that converts
DCcurrentorDCvoltagesignalintoisolatedtransistor-
contactpulseorcontactlessACswitchpulse.
TheVJQ7converterfeatures:
• Either pulse output, communication function (RS-485), or
alarm output (2 relay contacts) is selectable as Output-2.
• Various parameters such as input range can be set and
modiedusingaPC(VJ77(soldseparately))orHandy
Terminal(JHT200(soldseparately)andthelike).
MODEL AND SUFFIX CODES
Model Sufx codes Description
VJQ7 -0 □ □ -□ □ □ 0/□ AnalogtoPulseConverter
(Multi-function)
-0 Always -0
Output
conguration
11 output
22 outputs
Power supply 6100-240VAC/DC*1
715-30VDC*2
Input signal
-A 0to50mADC,spanis
5mA or more
-1 –10to+10VDC,spanis
0.1V or more
Output-1 signal 1Open collector
3ContactlessACswitch
Output-2 signal
1Open collector
3ContactlessACswitch
PCommunicationfunction
(RS485)
TAlarm output (2 relay
contacts)
NNo Output-2
0Always 0
Option Blank:Withsocket
/SN Withoutsocket
*1:Operatingrange:85to264V
*2:Operatingrange:12to36V
1. MOUNTING METHODS
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.
1.1 Wall Mounting
Loosenthemainunit-xingscrewofthetransmitterto
disconnectthemainunitfromthesocket.Next,anchorthe
socket onto the wall with screws. Then, plug the main unit
into the socket and secure the main unit with the main unit-
xingscrew.
29.5 or more
22±0.2
2-M4 or
2-ø
4.5 or more
Mounting Dimensions
Unit: mm
59±0.3
Main unit-fixing screw
Socket
Main unit
Threaded hole for
fixing the main unit
Mounting screws
Keep this manual in a safe place.
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: [phone] Facsimile: [phone]
http://www.yokogawa.com/ns/juxta/im/
You can download the latest manuals from the following website:
ThankyouforpurchasingtheJUXTASignalConditioner.Pleasereadthroughthismanualbeforeuseforcorrecthandling.

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IM 77J01Q17-01E 4th Edition Mar.14,2016-00
1.2 DIN Rail Mounting
LocatethetransmittersothattheDINrailtsintotheupper
part of the DIN-rail groove at the rear of the socket, and
fasten the socket using the slide lock at the lower part of the
socket.
DIN rail
DIN rail
(Rear of socket)
Slide lock
DIN rail
Fit into here
Push
1.3 Mounting Using a Multi-mounting Base
For mounting using a multi-mounting base, see the
InstructionManualforVJCE(VJMountingBase).
1.4 Using Ducts
Wiringductsshouldbeinstalledatleast30mmawayfrom
the top or bottom of the main unit.
2. INSTALLATION LOCATION
• For installation, avoid any location where the product
may be subject to vibrations, corrosive gases, or large
amountsofdust,orwheretheproductisexposedto
water, oil, solvents, direct sunlight, radioactive rays, or
strongelectricormagneticelds.
• If there is a possibility that lightning could induce a high
surge voltage on the power and signal lines, provide
lightningarrestersonthelinebetweentheeldinstrument
and indoor instrument in order to protect the product.
Installadedicatedarresterontheeldsideandanother
on the indoor side.
• Operatingtemperature/humidityrange:0to50°C/5to
90%RH(nocondensation)
3. EXTERNAL WIRING
WARNING
To avoid the risk of an electric shock, turn off the
power supply and use a tester or similar device to
ensure that no power is supplied to a cable to be
connected, before carring out wiring work.
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.
Note
When power of VJQ7 is turned on/off, one pulse
may be counted by the pulse input device which
connects to the VJQ7.
• 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.
Pulse output
Output-1 signal
Pulse output
Output-2 signal
Alarm output
RS-485
communication
Input
R: Externally connected
for current input
Shunt resistor
(Externally connected
for current input)
1011
3 2 1
56
789
1110 8
L+N–GND
1
3
+
–
+
–
+
R
–5
2
6
5
2
9
7
ALM1
(N.O.)
(N.O.)
ALM2
COM 5
2
6
B+
A–
COM
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.
●Make sure to earth ground the ground terminal
through minimum resistance. 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 specications
may cause 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
specications.
• Theexternalwiringtotheterminalsandwiringto
groundareasspecications.
●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.
●If an inductance (L) load such as auxiliary
relays or solenoid valves is used, always insert
a spark killer for diminishing sparks, such
as a CR lter or a diode in parallel with the
inductance load. Otherwise a malfunction or
relay failure may occur. Refer to the following
guidelines for a capacitor and resistor:
Capacitor : 0.5 to 1 µF with respect to a contact
current of 1 A
Resistor: 0.5 to 1 Ωwith respect to a contact
voltage of 1 V
●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
IM 77J01Q17-01E 4th Edition Mar.14,2016-00
4. DESCRIPTION OF FRONT PANEL AND
CONNECTION OF SETTING TOOLS
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.TheALM1
and ALM2 LEDs light up if an alarm occus (those LEDs are
providedonlywhentheoutput-2isspeciedforalarmoutput.)
ALM 1
ALM 2
Alarm output-1 LED
(lights up if an alarm occurs)
Communications connector
Alarm output-2 LED
(lights up if an alarm occurs)
4.2 Connecting the Setting Tools
Connectthemodularjack-to-connectoradapter(E9786WH)
to the JUXTA communication cable with 5-pin connector
(F9182EE) and then connect this adapter to the
communication connector of JUXTA.
< How to connect with the setting tool>
JHT200
Handy Terminal
JUXTA communication cable with
5-pin connectors (F9182EE)
[Provided with VJ77, JHT200]
Modular jack conversion
adapter (E9786WH)
[Provided with VJ77]
Dedicated adapter (E9789HA)
[Provided with VJ77]
Dedicated cable (E9786WK)
[Provided with VJ77]
PC
• 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.
5. SETTING PARAMETERS
SettheparametersusingaPC(VJ77ParameterSetting
Tool)ortheHandyTerminal.Referto“7. 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
77J50H01-01EN).
5.1 Settings Related to Inputs and Outputs
5.1.1 Input Type
 SetbyselectinginputtypefromamongVOLTS(DC
voltage)andCURRENT(DCcurrent)inD16:INPTYPE.
5.1.2 Input Hard Range
Set by selecting the input hard range from among AUTO,
HIGH,MIDDLE,andLOWinD17:SELECTRANGE.
Generally,selectAUTO.
• AUTO:Setstheinputhardrangeautomaticallywith
respect to the input range to be set.
• HIGH:Foraspanof5Vormoreinaninputrangeof-10to+10V
• MIDDLE:Foraspanof2.5Vormoreinaninput
range of -5 to +5 V
• LOW:Foraspanof0.5Vormoreinaninputrangeof-1to+1V
For the current input, convert the current range within
0-50mADCtothevoltagerange(inputrangexinput
resistor), and apply the condition mentioned above.
NOTE
The conditions for the input hard range (HIGH,
MIDDLE, and LOW) are specied for operations
within the range of accuracy rating. The input
range may be set to a range not meeting these
conditions, but take note of accuracy limitations.
Similar accuracy limitations exist even when AUTO
is selected. For more information on accuracy
limitations, see the general specications of VJQ7
(GS 77J1Q17-01E).
5.1.3 Input Range
 Setthe0%valueofinputrangetoD22:INPUT1
L_RANGEandthe100%valueofinputrangetoD23:
INPUT1H_RANGEwithinthenumericallyspeciedrange.
5.1.4 Output Range Unit
 Whenreferringandsettingtheoutputrange,selectand
setHzorkHzinD10:UNIT.
5.1.5 Output Range
 Setthe0%valueofoutputrangeinD24:OUTL_RNG,
and100%ofoutputrangeinD25:OUTH_RNGwithin
thenumericallyspeciedrange.
Note
In case the input and output 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 Pulse Width Type
Select and set “50%” (duty 50%), “ON PULSE” (ON-state
pulsewidthxed),or“OFFPULSE”(OF-statepulsewidth
xed)inD46:PULSETYPE.
5.1.7 Pulse Width Time
The pulse width time is set when the pulse width type is
set to “ON PULSE.”
 SelectandsetthenumericalvalueinD47:PULSEWIDTH.
 Pulsewidthsettingrange:0.1to500ms,by0.1ms
The output frequency when ON-state pulse width or OFF-
statepulsewidthisxedisasfollows.Thefrequency
over the following frequency is limited.
1
Pulse width set value(ms) x 2
x 1000[Hz]
5.2 Settings Related to Communication
Function
Setthefollowingparameterswhenoutput-2isspecied
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PC-LINK,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.

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IM 77J01Q17-01E 4th Edition Mar.14,2016-00
5.2.6 Stop Bit
 Selectandset1bitor2bitsinF06:STOPBIT.
5.2.7 Input Decimal Point Position
Namber of digits of decimal places (setting of D register
[D0003]) 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specied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DE-ENERGIZED(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.
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,sdnuosmralaehtretfA.sdnoces3nahteromrof
nahtsieulavtupnierehwnoitidnocehtnehw
nahteromrofseunitnocmralatimil-wolehtfo%02
.lamronotsnrutersutatseht,sdnoces4
less
[%]
0
20
15
40
60
80
100 [1] [2]
[3] [4]
1 sec. 2 sec.
3 sec. 4 sec.
Alarm-2 hysteresis (5%)
Alarm-1 hysteresis (10%)
Alarm-1 setpoint (80%)
Alarm-2 setpoint (15%)
Elapsed time 1 sec.
Alarm-1 ON delay Alarm-1 OFF delay
Alarm conditions established Alarm conditions established Normal conditions established Normal conditions established
Low-limit alarm ON Low-limit alarm OFF
Alarm-2 ON delay Alarm-2 OFF delay
[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 conditions established Alarm conditions established
High-limit alarm ON High-limit alarm OFF
Normal conditions established Normal conditions established
Alarm-1 action
Alarm-2 action
Alarm
Normal Normal
Normal Alarm Normal

5
IM 77J01Q17-01E 4th Edition Mar.14,2016-00
7. LIST OF PARAMETERS
Parameter Display Item
MODEL Model
TAGNO Tag no.
SELFCHK Self-check result
A DISPLAY1 Display1
A01 INPUT1 Input value
A05 OUTPUT Output value
A07 ALM1 STATUS Alarm-1 status
A08 ALM2 STATUS Alarm-2 status
A54 STATUS Status *1
A56 REV NO Rev. no.
A58 MENU REV MENU REV
A60 SELFCHK Self-check result
B DISPLAY2 Display2
B01 INPUT1 Input value
B05 OUTPUT Output value
B07 ALM1 STATUS Alarm-1 status
B08 ALM2 STATUS Alarm-2 status
B60 SELFCHK Self-check result
D SET (I/O) Setting (I/O) *2
D01 TAGNO.1 Tag no. 1
D02 TAGNO.2 Tag no. 2
D03 COMMENT1 Comment1
D04 COMMENT2 Comment2
D10 UNIT Output range unit
D14 LOWCUT Low output cut point
D16 INPTYPE Input type
D17 SELECTRANGE Selection of input hard range
D18 INP RESIST Input resistance
D22 INPUT1L_RANGE Input low range
D23 INPUT1H_RANGE Input high range
D24 OUTL_RANGE Output low range
D25 OUTH_RANGE Output high range
D46 PULSETYPE Pulse width type
D47 PULSEWIDTH Pulse width time
D60 SELFCHK Self-check result
E SET(ALM) Setting (alarm output) *2
E03 SET POINT1 Alarm-1 setting
E04 SET POINT2 Alarm-2 setting
E05 ALM1ACTION Direction of alarm-1 action
E06 ALM2ACTION Direction of alarm-2 action
E09 HYSTERESIS1 Alarm-1 hysteresis
E10 HYSTERESIS2 Alarm-2 hysteresis
E11 ONDELAY1 Alarm-1 ON delay setting
E12 ONDELAY2 Alarm-2 ON delay setting
E13 OFFDELAY1 Alarm-1 OFF delay setting
E14 OFFDELAY2 Alarm-2 OFF delay setting
E15 RL1ACTION Direction of alarm-1 relay action
E16 RL2ACTION Direction of alarm-1 relay action
E60 SELFCHK Self-check result
F SET(COM) Setting (communication) *2
F01 PROTOCOL Communicationprotocol
F02 ADDRESS Address
F03 BAUD RATE Baud rate
F04 PARITY Parity
F05 DATA LEN Data Length
F06 STOP BIT Stop bit
F07 INPUTDECPT Decimal point position of input
F60 SELFCHK Self-check result
P ADJUST Adjustment
P02 ZEROADJ1 Zeroadjustmentofinput
P03 SPAN ADJ1 Span adjustment of input
P17 RESISTOR ADJ Adjustmentofexternalinput
resistance
P60 SELFCHK Self-check result
Q TEST Test *2
Q04 ALM1 TEST Forced output (alarm 1)
Q05 ALM2 TEST Forced output (alarm 2)
Q08 OUT TEST Forced output
Q60 SELFCHK Self-check result
*1 The Status is displayed for service personnel to see
history records.
*2 There are items not displayed depending on what
output-2isspecied.
8. 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speciedperformance.
For cleaning the instrument, use a soft and dry cloth.
8.1 Calibration Apparatus
• Acalibrator(YOKOGAWACA150orequivalent)
• Aprecisionresistorof250Ω±0.01%,1W(forcurrent
output)
• Settingtoolforadjustment(Referto“4.2Connectingthe
Setting Tools” in this manual.)
8.2 Calibration Procedure
1. Connecttheinstrumentsasshowningurebelow.First
adjust the output-1 signal and then the output-2 signal.
Input
R: Externally connected
for current input
R: 250 Ωprecision resistor
for current input
Shunt resistor
(Externally connected
for current input)
Voltage and
current
Generator
Voltage and
current
Generator
Voltage and
current
Generator
Voltage and
current
Generator
Voltage and
current
Generator
Output-1
Alarm-1
Alarm-2
Output-2
1011
3 2 1
4
56
789
Power supply
1110 8
L+N–GND
1
3
+
–
2
5
R
+
–
2
5
ALM1
(N.O.)
COM
+
–
6
5
ALM2
(N.O.)
COM
+
–
7
9
R
+
–
2. Produce input signals equivalent to 0, 25, 50, 75 and
100% of the input span to the converter from the voltage
and current generator.
3. Then, check that the converter’s output signal shows
voltages corresponding to 0, 25, 50, 75, and 100% of the
input span within the rated accuracy range.
Take the same calibration procedure for the output-2, and
conrmthatthefrequencyoftheoutput2isthesameas
that of the output 1.
• If the output signal is out of the rated accuracy range,
adjusttheoutputsignallevelusingtheHandyTerminal
(JHT200).
For adjustment using a setting tool, refer to the User’s
Manual for each setting tool and “7. List of Parameters” in
this manual.
User’sManualforVJ77[DocumentNo.:IM77J01J77-01E]
User’sManualforJHT200[DocumentNo.:IM77J50H01-
01EN]
Note
When power of VJQ7 is turned on/off, one pulse
may be counted by the pulse input device which
connects to the VJQ7.

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