User`s Manual
Contents
1. 02E Input With SINK current P OQO ss 7 6 5 Calibrator ll Without SINK current 3 Ss Il Calibrator D ALM1 NO 5 COM Calibrator Geo Joanet i IM 77J01A21 01E 1st Edition 2006 08 15 002. se ge S gt gt o3 oJ 5 D gt D gt Bo Gq N 5 5 E z5 9 3 3 22 aa 2 2 3 3 3 40 Q Q a a 2 7 amp e D o lt w lt S oz ez 26 25 S 3 53 amp 3 3 g gt ge gt Q o 3 825 aS ai o 2 2 a d Q S S a a amp A a D 2 Z _Alarm 2 hysteresis 5 Alarm 2 setpoint 15 0 ea 1 i 1 Elapsed time 1 sec Alarm 1 action Normal PAAA Normal Alarm 2 action Normal ZNZ Normal IM 77J01A21 01E 1st Edition 2006 08 15 00 11 LIST OF PARAMETERS Display 03 Self check result SELF CHK Display Display items A Display 1 DISPLAY1 Display 2 DISPLAY2 A01 Input value INPUT1 Input value INPUT1 A05 Output value 1 OUTPUT1 Output value 1 OUTPUT1 A07 Alarm 1 status ALM1 STATUS Alarm 1 status ALM1 STATUS A08 Alarm 2 status ALM2 STATUS Alarm 2 status ALM2 STATUS A54 Status STATUS Self check result SELF CHK A56 Rev No REV NO A58 Menu Rev MENU REV A60 Self check result SELF CHK Setting items 3 D Setting I O SET VO Setting alarm output SET ALM D01 Tag no 1 TAG NO 1 arm 1 setting SET POINT1 D02 Tag no 2 TAG NO 2 arm 2 setting SET POINT2 D03 Comment 1 Comment 2 COMMENT1 COMMENT2 irection of alarm 1 action E06 irection of alarm 2 action ALM1 ACTION
3. OFF delay 2 sec E13 OFF DELAY1 E14 OFF DELAY2 4 sec Description of alarm actions The alarm is output if the condition where the input value is 80 or more of high limit alarm continues for 1 second or more After the alarm is output when the condition where the input value is less than 70 of high limit alarm continues for 2 seconds or more the status returns to normal The alarm is output if the condition where the input value is 15 or less of low limit alarm continues for 3 seconds or more After the alarm is output when the condition where the input value is more than 20 of low limit alarm continues for 4 seconds or more 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 gt 2 2 5 5 Ss Ss 3 3 3 3 Q Q e 2 2 8 8 lZle 2 Z a aj js S gt 2 a 2 oy amp 8lFle g S 8 B S s 8 S a B O E Q DEMI amp UE 1 a2 amp 80 Alarm 1 hysteresis 10 gt 2 sec 2 z 22 5 60
4. a CR filter 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 uF with respect to a contact current of 1A Resistor 0 5 to 1 Q with respect to a contact voltage of 1 V The power line and input output signal lines should be installed away from noise generating sources Otherwise accuracy cannot be guaranteed The grounding resistance must be 100 Q 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 8 DESCRIPTION OF FRONT PANEL AND CONNECTION OF SETTING TOOLS 8 1 Front Panel The communications connector on the front panel is used for setting up parameters using a PC VJ77 PC based Param eters Setting Tool or the Handy Terminal JHT200 The alarm indicator lamps for alarm 1 and alarm 2 light up if an alarm occurs Communication connector Alarm indicator lamp for alarm 1 Alarm indicator lamp for alarm 2 Fig 8 1 Front Panel IM 77J01A21 01E 1st Edition 2006 08 15 00 8 2 Connecting the Setting Tools Connect the modular jack conversion adapter E9786WH to the JUXTA communication cable with 5 pin connector F9182EE and then connect thi
5. in a system failure N NOTE Draws attention to essential information for under standing the operations and or functions of the product 2 CHECKING THE PRODUCT SPECIFICATIONS AND THE CONTENTS OF THE PACKAGE 1 Model and Specifications Check Check that the model and specifications indicated on the nameplate attached to the side face of the main unit are as ordered 2 Contents of the Package Check that the package contains the following items VJAK 1 Users manual this manual IM 77J01A21 01E 1 Accessories Tag number label 1 sheet 3 GENERAL This plug in type Limit Alarm for DC current input receives 4 to 20 mA DC current signal It is used in combination with two wire type transmitter e Each parameter setting can be changed using a PC VJ77 PC based Parameters Setting Tool or the Handy Terminal JHT200 Keep this manual in a safe place Loosen the main unit fixing screw 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 Hole for main unit fixing screw Main unit fixing screw lt Mounting Dimensions gt Unit mm 29 5 or more 2 M4 or 2 04 5 or more 59 0 3 fo i ZO ae Fig 5 1 YOKOGAWA Yokogawa Electric Corporation Yokogawa Electric Corporation Network Solutions Business Divisiion
6. 2 9 32 Naka cho Musashino shi Tokyo 180 8750 Japan Phone 81 422 52 7179 Facsimile 81 422 52 6619 IM 77J01A21 01E 1st Edition Aug 2006 YK 5 2 DIN Rail Mounting Locate the VJAK 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 Fit into here DIN rail DIN rail Le DIN rail Slide lock Fig 5 2 5 3 Using a Duct Wiring duct should be installed at least 30 mm away from the top and bottom faces of the main unit 6 INSTALLATION LOCATIONS e Avoid the following environments for installation locations Areas with vibrations corrosive gases dust water oil solvents direct sunlight radiation a strong electric field and or a strong magnetic field e 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 the product and a field installed de vice 7 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 VJAK The terminals for external connections are of M3 screws Use crimp on lugs for co
7. ALM2 ACTION Linearize LINEARIZE E09 arm 1 hysteresis HYSTERESIS1 Low cut LOW CUT HYSTERESIS2 Direction of output 1 action OUT1 DR E11 jarm 1 ON delay setting ON DELAY1 Self check result SELF CHK E12 larm 2 ON delay setting ON DELAY2 E13 jarm 1 OFF delay setting OFF DELAY1 A A Di Di A E10 Alarm 2 hysteresis A A A A E14 jarm 2 OFF delay setting OFF DELAY2 E15 Direction of alarm 1 relay action RL1 ACTION E16 Direction of alarm 2 relay action RL2 ACTION E60 Self check result SELF CHK Adjusting items 3 Test items 3 P Adjustment ADJUST1 Q Test TEST P02 Zero adjustment of input 1 ZERO ADJ1 Q02 Forced output 1 OUT1 TEST P03 Span adjustment of input 1 SPAN ADJ1 Q04 Forced output alarm 1 ALM1 TEST P12 0 adjustment of output 1 OUT1 0 Q05 Forced output alarm 2 ALM2 TEST P13 100 adjustment of output 1 Self check result 1 The indications and settings of the parameters are not available personnel to see history records D E P and Q using the JHT200 Handy Terminal execute the following operation 2 The status is displayed for service 3 To call the parameter setting items OUT1 100 SELF CHK Press F1 j ENTER keys Q60 Self check result SELF CHK D E P or Q key enters C above A IMPORTAN
8. T Do not change the settings of the items marked 1 in the List of Parameters above after the delivery of the prod uct Doing so may result in a malfunction or a system failure IM 77J01A21 01E 1st Edition 2006 08 15 00 12 MAINTENANCE The product enters the operable status as soon as the power is turned on but requires 10 to 15 minutes of warm up to meet the performance requirements 12 1 Calibration Apparatus Calibrator Yokogawa Meters amp Instruments CA71 or equivalent 1 Setting tool for adjustment Refer to 8 2 Connecting the Setting Tools in this manual 12 2 Calibration Procedure 1 Connect the instruments as shown in Fig 12 1 and Fig 8 2 2 Produce the input signal equivalent to 0 of the input range from the calibrator to the product Then read the input value of Display items A01 INPUT1 using the VJ77 or JHT200 and check that the input value is within the rated accuracy range Take the same procedure for the input signal equivalent to 25 50 75 and 100 of the input range and check that the input values are within the rated accuracy range For alarm output check the relay action by the alarm in dicator lamp or resistance of output terminals If the input values are out of the rated accuracy range adjust the input signal level referring to the user s manual for VJ77 PC based Parameters Setting Tool IM 77J01J77 01E or for JHT200 Handy Terminal IM JF81
9. User s Model VJAK JUXTA Manual Limit Alarm DC Current Input Type with Transmitter Power Supply IM 77J01A21 01E SeeeeeEeE ee L 4 MODEL AND SUFFIX CODES WAK 0 20 OT 0 0 0 1 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 eusure safe use Model Number of outputs 2 2 outputs gt Power supply 6 100 240 V AC DC Operating range 85 to 264 V 7 15 30 V DC Operating range 12 to 36 V This symbol is displayed on the product when it is necessary to refer to the user s manual for infor mation on personnel and instrument safety This symbol is displayed in the user s manual to indi cate precautions for avoiding danger to the opera tor such as an electric shock Input signal A 4 to 20 mA DC Transmitter power supply 24 to 28 V DC The following symbols are used only in this manual Output signal T Alarm output 2 points of relay contacts IMPORTANT Optional specification Blank With socket SN Without socket 5 MOUNTING METHODS 5 1 Wall Mounting Indicates that operating the hardware or software in a particular manner may cause damage or result
10. from the establishment of return to normal conditions to its output Setting range 0 to 999 seconds Setting resolution 1 second However about 0 2 sec ond is to be added to the set time to prevent wrong op eration For example when an alarm ON delay is set to 1 second alarm output is generated if alarm status continues for 1 sec ond or more after the input value exceeds the alarm setpoint Further when an alarm OFF delay is set to 2 sec onds alarm output is released if normal condition continues for 2 seconds or more after the input value has returned to normal from the alarm status 9 2 5 Direction of Relay Action Select the direction of relay energizing in alarm 1 normal condition and alarm 2 normal condition 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 IM 77J01A21 01E 1st Edition 2006 08 15 00 10 DESCRIPTION OF ALARM ACTIONS This chapter describes examples of alarm actions under the following conditions Alarm 1 Alarm 2 Item Parameter Setpoint Parameter Setpoint Direction of alarm action E05 ALM1 ACTION High limit alarm E06 ALM2 ACTION Low limit alarm Alarm setting E03 SET POINT1 80 E04 SET POINT2 15 Hysteresis E09 HYSTERESIS1 10 E10 HYSTERESIS2 5 Alarm ON delay E11 ON DELAY1 1 sec E12 ON DELAY2 3 sec Alarm
11. nnections to the terminals e It is recommended that signal wires have a nominal cross sectional area of 0 5 mm or thicker while the power cable has a nominal cross sectional area of 1 25 mm or thicker Input signal When usin i extemal g ANNA Alarm a ALM2 N ORO O Or ie COM 0O Ul ge sce tH 20 COM Power supply 9 BZ Alarm 1 output L DKO AM NO H COM O O gt oe When connecting the transmitter to the VJAK directly without using the transmitter power supply connect of the transmitter output to the terminal no 3 and connect to the terminal no 4 IMPORTANT Use of the product ignoring the specifications may cause overheating or damage Before turning on the power ensure the following a Power supply voltage and input signal value applied to the product should meet the required specifications b The external wiring to the terminals and wiring to ground are as specifications Do not operate the product in the presence of flammable 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
12. s adapter to the communica tion connector of JUXTA JUXTA communication cable with 5 pin connector F9182EE JHT200 Comes with VJ77 and JHT200 Handy Terminal Modular jack conversion adapter E9786WH Comes with VJ77 Dedicated adapter E9789HA Comes with VJ77 o Dedicated cable E9786Wk PC withthe Comes with VJ77 VJ77 installed Fig 8 2 Connecting the Setting Tools Note The modular jack conversion adapter does not come with the JHT200 Handy Terminal It is sold separately 9 SETTING PARAMETERS Set the parameters using a PC VJ77 PC based Parameters Setting Tool or the Handy Terminal JHT200 Refer to the list of parameters in this manual and the user s manual for VJ77 PC based Parameters Setting Tool IM 77J01J77 01E or JHT200 Handy Terminal IM JF81 02E 9 1 Settings Related to Input 9 1 1 Square Root Extraction Function Select SQR in D11 LINEARIZE to set with square root ex traction function 9 1 2 Low cut Function Set the low cut point in D12 LOW CUT numerically when with square root extraction function is set Setting range 0 to 100 of input range Setting resolution 0 1 Output signal Y Input signal X Low cut point i Hysteresis i 0 2 fixed 9 2 Settings Related to Alarm Output 9 2 1 Alarm Setpoint Set the alarm setpoints of alarm 1 and alarm 2 in E03 SET POINT1 and E04 SET POINT2 numerically Setting range 0
13. to 100 of input range Setting resolution 0 1 9 2 2 Direction of Alarm Action Select the direction of alarm 1 action and that of alarm 2 ac tion from among HIGH ALM high limit alarm and LOW ALM low limit alarm in E05 ALM1 ACTION and E06 ALM2 AC TION To activate alarm status when input signal alarm setpoint select HIGH ALM To activate alarm status when input signal alarm setpoint select LOW ALM 9 2 3 Hysteresis Set the alarm 1 and alarm 2 hysteresis in E09 HYSTER ESIS1 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 acti vated The alarm status will be released in the following con ditions depending on the direction of alarm action When HIGH ALM high limit alarm is set Alarm is re leased when input signal lt alarm setpoint hysteresis When LOW ALM low limit alarm is set Alarm is re leased when input signal gt alarm setpoint hysteresis Setting range 0 to 100 of input range Setting resolution 0 1 9 2 4 Alarm ON Delay and Alarm OFF Delay Set the 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 the condition monitoring time from the establishment of alarm conditions to its output an alarm OFF delay is the condition monitoring time
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