User`s Manual
Contents
1. RS 485 communication A C O gt loo Os O COM OSa com Pulse output Alarm output a gA Output 1 signal Pulse output gt Q Power supply O GND Fig 6 1 AN NOTE The use of inductance L loads such as auxiliary relays and solenoid valves causes malfunction or relay failure always insert a CR filter or diode for spark removal into the line in parallel with the load Recommended CR C 0 5 to 1F against contact current 1A R 0 5 to 1 O against contact voltage 1V Keep all sources of noise away from the power and sig nal cables Otherwise accuracy cannot be assured Provide grounding to a grounding resistance of 100 Q The length of the grounding cable should be 20 m or less Directly connect the lead from the ground terminal terminal no 8 of the isolator to the ground Do not carry out daisy chained inter ground terminal wiring Direct Current Overvoltage category Installation category describes a number which defines a transient overvoltage condition It implies the regulation for impulse withstand voltage II applies to electrical equipment which is supplied from the fixed installation like distribution board Pollution degree describes the degree to which a solid liquid or gas2. 20 f Alarm 2 hysteresis 5 Alarm 2 setpoint 15 0 Elapsed time 1 sec Alarm 1 action Normal Normal Alarm 2 action Normal MMU ONSITE Normal IM 77J01Q17 01E 10 LIST OF PARAMETERS 08 Sarena stro Display items Baga rt 8 e y ESA NO a Opie o Pate eats Youre o A54 Status Self check result fool A56 Rev no Menu rev A60 Self check result Setting items SETA 1 The Status is displayed for service personnel to see history records E E ol Setting I O SET I O D02 Tag no 2 D03 Comment 1 D04 Comment 2 D01 Das Pulse with ype Posee f E Semo communication sem D60 Self check result PSELFCHK ro aes f aboRess There are items not displayed depending on what output 2 is specified Fo5 Datalength DAALEN Adjusting items OL Poe Zee asmeni ZEROABT __ GOs Forced a AMTEST _ Fo T Span adusinentoFinut SPAN ADIT 008 Forced outa amy Amere PIT Adjustment ofexernainputrestance RESISTOR ADS ooe Fowedouput f ourtesT Pao_ Sarereckresut SELFORK O60 Sehocresat SELF Shunt resistor 11 MAINTENANCE Externally connected for current input The product starts running immediately when the power is turned on La Ls Bie Aowoupot gipsi powem a Ecc a LE SS however it needs 10 to 15 minutes of warm up before it meets the Input signal specified performance For cleaning the inst
3. 422 52 6793 IM 77J01Q17 01E 1st Edition Feb 2000 2nd Edition June 2004 2 4 3 Mounting Using a Multi mounting Base For mounting using a multi mounting base see the Instruction Manual for VJCE VJ Mounting Base 4 4 Using Ducts Wiring ducts should be installed at least 30 mm away from the top or bottom of the main unit 4 5 In case of top and bottom close mounting Transmitter should be mounted horizontally with its top and bot tom slits being vertical The top and bottom slits should not be covered The area for wiring is required above and below the transmitter the area with slant lines O Q IE cal ll ae ar 5 g 29 5 5 O 29 5 or more D Cy Pal WA mal E a o E U Va o WL Fig 4 4 5 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 fields If there is a possibility that lightning could induce a high surge voltage on the power and signal lines provide lightnin
4. IGH MIDDLE and LOW in D17 SELECT RANGE Generally select AUTO AUTO Sets the input hard range automatically with re spect 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 AN NOTE The conditions for the input hard range HIGH MIDDLE and LOW are specified 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 limita tions Similar accuracy limitations exist even when AUTO is selected For more information on accuracy limitations see the general specifications of VJQ7 GS 77J1Q17 O1E 8 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 INPUT H_RANGE within the numerically specified range 8 1 4 Output Range Unit When referring and setting the output range select and set Hz or kHz in D10 UNIT 8 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 specified range 8 1 6 Pulse Width Type Select and set 50 duty 50 ON PULSE ON state pulse width fixed or OFF PULSE OF state pulse width fixed in D46 PULSE TYPE 8 1 7 Pulse Width Time The pulse width time is set when the pulse w
5. LM2 LEDs light up if an alarm occus those LEDs are provided only when the output 2 is specified for alarm output Communications connector Alarm output 1 LED lights up if an alarm occurs Alarm output 2 LED lights up if an alarm occurs The LEDs are provided only when output 2 is specified for alarm output Fig 7 1 Front Panel 7 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 JUXTA communication cable with 5 pin connectors F9182EE JHT200 Provided with VJ77 JHT200 Handy Terminal A Modular jack conversion adapter E9786WH Provided with VJ77 Dedicated adapter E9789HA Provided with VJ77 S Dedicated cable E9786Wk PC Provided with VJ77 Fig 7 2 Connecting the Setting Tools 8 SETTING PARAMETERS Set the parameters using a PC VJ77 PC based Parameters Setting Tool or the Handy Terminal Refer to the list of parameters in this manual and the Instruction Manual for Handy Terminal IM JF81 02E and VJ77 PC based Parameters Setting Tool IM 77J01J77 01E 8 1 Settings Related to Inputs and Outputs 8 1 1 Input Type Set by selecting input type from among VOLTS DC voltage and CURRENT DC current in D16 INP TYPE 8 1 2 Input Hard Range Set by selecting the input hard range from among AUTO H
6. User s Manual IM 77J01Q17 01E Model VJQ7 Analog Pulse Transmitter JUXKTA 1 CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT For the correct use of this product read through this manual before use The following safety symbol is indicated on the product to en sure safe use ZN E If this symbol is indicated on the product the operator should refer to the explanation given in the instruction manual in order to avoid personnel injury or death to either themselves or other personnel and or damage to the instru ment The manual describes the special care the operator should exercise to avoid shock or other dangers that may re sult in injury or loss of life The following symbol marks are used only in this manual A IMPORTANT Indicates that operating the hardware or software in a par ticular manner may damage it or result in a system failure AN NOTE Draws attention to information that is essential for under standing the operations and or features of the product 2 CHECKING PRODUCT SPECIFI CATIONS AND THE CONTENTS OF PACKING 1 Model Number and Specification Check Check that the model number and specifications 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 main unit 1 Instruction Manual IM 77J01Q17 01E 1 Accessories Tag number label 1 Renge label 1 Shunt reg
7. Y 72 and then alarm 1 and alarm 2 OFF delays in E13 OFF DELAY 1 and E14 OFF DELAY 2 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 sec ond 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 8 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 RLI ACTION and E16 RL2 ACTION and set them IM 77J01Q17 01E 9 DESCRIPTION OF ALARM ACTIONS This chapter describes examples of alarm actions under the following conditions Saipan Cow imit alarm 15 5 3 seo The alarm sounds if the condition where the input The alarm sounds if the condition where the input value is 80 or more of high limit alarm continues v
8. alue is 15 or less of low limit alarm continues Description of alarm for more than 1 second After the alarm sounds for more than 3 seconds After the alarm sounds actions when the condition where input value is less than when the condition where input value is more than 70 of the high limit alarm continues for more than 20 of the low limit alarm continues for more than 2 seconds the status returns to normal 4 seconds the status returns to normal 1 Alarm status does not continue for more than 1 second after the gt z Z Z 2 S So 6S 3 3 3 3 D D DE l Ss 8 jg s alarm conditions are established at alarm 1 a Qa 7 15s Ss i 15 2 2 F 2 Normal status does not continue for more than 2 seconds after the a a F S normal conditions are established at alarm 1 40 fq gt S o Z 2S2 R z 3 Alarm status does not continue for more than 3 seconds after the SA S13 z at 3 oH as w Ol S Zs 10 alarm conditions are established at alarm 2 100 g 1 2 3 2 a 4 Normal status does not continue for more than 4 seconds after the normal conditions are established at alarm 2 80 Alarm 1 setpoint 80 Alarm 1 hysteresis 10 gt 5 gt 5 m 22 22 s 2 BF ae gt gt oS 23 3 3 S38 S5 3 D D nO Ro Njo a 2 n 2 ne 33 a3 9 8 388 28 9 8 3 3 2a 2a 2 3 Qs a5 m 3 an a alo 2 a a lo O O MO 40 O O 2 3 p o o H 2 a S D 4 sec lt g
9. fied for alarm output 8 3 1 Alarm Setpoints Set the alarm setpoints of alarm 1 and alarm 2 in E03 SET POINTI and E04 SET POINT2 numerically Setting range A range of 0 to 100 of input range Setting resolution 0 1 8 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 lt alarm setpoint select LOW ALM 8 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 re leased 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 lt alarm setpoint hysteresis When LOW ALM low limit alarm is set Alarm is released when input signal gt alarm setpoint hysteresis Setting range A range of 0 to 100 of input range Setting resolution 0 1 8 3 4 Alarm ON Delay and Alarm OFF Delay Set alarm 1 and alarm 2 ON delays in E11 ON DELAY 1 and E12 ON DELA
10. g arrest ers on the line between the field instrument and indoor instru ment in order to protect the product Install a dedicated ar rester on the field side and another on the indoor side 6 EXTERNAL WIRING A WARNING Turn OFF the power supply and make sure that none of the cables are not in the hot line state before carrying out the wiring to avoid the possibility of electric shock Wires are connected to the terminals of the isolator s socket M3 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 0 5 mm or thicker for signal cables and that of 1 25 mm or thicker for power cables and shielded twisted pair cables AWG24 for communication wiring cables For mounting use M3 screws and crimp on terminals with in sulating sleeves appropriate for the wires used Tool of the crimp on terminals to be used should be appropri ate for the crimp on terminals Mount a breaker on the external place Mount a switch or 5A circuit breaker on the place near by the instrument within operator s reach And attach the indication that it is for disconnecting the instrument Input signal Analog input 20 R 100 Q Externally connected for current input Shunt resistor Externally connected j for current input Output 2 signal
11. idth type is set to ON PULSE Select and set the numerical value in D43 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 fixed is as follows The frequency over the follow ing frequency is limited 1 Pulse width set value ms x2 x1000 Hz IM 77J01Q17 01E 8 2 Settings Related to Communication Function Set the following parameters when output 2 is specified for com munication function For more information on the communication function see the Instruction Manual for VJ Series Communication Function IM 77J1J11 01E 8 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 8 2 2 Communication Address Set the address number of the isolator numerically in a range of 1 to 99 in F02 ADDRESS 8 2 3 Baud Rate Set the baud rate by selecting from among 1200 2400 4800 and 9600 bps in F03 BAUD RATE 8 2 4 Parity Select and set NONE EVEN or ODD in F04 PARITY 8 2 5 Data Length Select and set 7 bits or 8 bits in F05 DATA LEN 8 2 6 Stop Bit Select and set 1 bit or 2 bits in F06 STOP BIT 8 2 7 Input Decimal Point Position Namber of digits of decimal places can be set Select and set among 0 to 5 digits in F07 INPUT DEC PT 8 3 Settings Related to Alarm Output Set the following parameters when output 2 is speci
12. istor for specification of current input 1 3 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 e Either pulse output communication function RS 485 or alarm output 2 relay contacts is selectable as Output 2 Keep this manual in a safe place 4 MOUNTING METHODS 4 1 Wall Mounting Loosen the main unit fixing 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 se cure the main unit with the main unit fixing screw Socket Threaded hole for fixing the main unit Main unit Main unit fixing screw Fig 4 1 4 1 1 Mounting Dimensions Unit mm 29 5 or more 22 0 2 2 M4 or 2 04 5 or more 59 0 3 O Sns ee O Fig 4 2 4 2 DIN Rail Mounting Locate the transmitter so that the DIN rail fits 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 Slide lock Fig 4 3 YOKOGAWA Yokogawa Electric Corporation Yokogawa Electric Corporation Network Solutions Business Divisiion 2 9 32 Naka cho Musashino shi Tokyo 180 8750 Japan Phone 81 422 52 7179 Facsimile 81
13. rument use a soft and dry cloth ee 11 1 Calibration Apparatus e Generator Voltage current generator Yokogawa 7651 or the equiva R 100Q lent 1 Externally connected for current input A counter Yokogawa TC100 or the equivalent or oscillo scope Yokogawa DL1540 or the equivalent 1 A resistor 1kQ 1 6 KQ 1 each 6V battery 1 Counter or 11 2 Calibration Procedure Ose re Connect the instruments as shown in Fig 11 1 First adjust the out put 1 signal and then the output 2 signal Produce input signals equivalent to 0 25 50 75 and 100 of the in put span to the converter from the voltage and current generator Then check that the converter s output signal shows the outputs cor responding 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 confirm that the frequency of the output 2 is the same Counter or Osilloscope as that of the output 1 When using a oscilloscope the wave shaping of output pulse can be confirmed 6V If the output signal is out of the rated accuracy range adjust the out Battery put signal level using the Handy Terminal JHT200 For adjust ment refer to Instruction Manual for VJ77 Parameters Setting Tools IM 77J01J77 01 or for Handy Terminal IM JF82 01 IM 77J01Q17 01E
14. which deteriorates dielectric strength or surface resistivity is adhering 2 applies to normal in door atmosphere Normally only non conductive pollu tion occurs Occasionally however temporary conduc tivity caused by condensation must be expected Rated fuse of 125VDC 1A is stored However operators can not replace the fuse IM 77J01Q17 01E fy IMPORTANT If this instrument is used in a manner not sepecified in this manual the protection provided by this instrument may be impaired If the product is operated by a power supply exceeding the specifications the product may become extremely hot and as a result damaged To prevent this ensure the following before turning on the power a The voltage of the supplied power and the in put signal level meet the specifications of the prod uct b External wires are connected to the correct ter minals refer to Chapter 5 Do not operate the product in the presence of flammable or explosive gases or vapors To do so is highly danger ous 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 7 DESCRIPTION OF FRONT PANEL AND CONNECTION OF SETTING 7 1 Front Panel The communications connector in the front panel is used for set ting up parameters through a PC VJ77 PC based Parameters Set ting Tool or the Handy Terminal The ALM1 and A
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