User`s Manual
Contents
1. Modular jack conversion adapter E9786WH Comes with VJ77 Dedicated adapter E9789HA Comes with VJ77 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 Input Type Select the input type from among VOLTS DC voltage and CURRENT DC current in D16 INP TYPE 9 1 2 Input Hard Range Select the input hard range from among AUTO HIGH MIDDLE and LOW in D17 SELECT RANGE Generally se lect AUTO AUTO Sets the most appropriate input hard range auto matically 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 DC MIDDLE For a span of 2 5 V or more in an input range of 5 to 5 V DC LOW For a span of 0 5 V or more in an input range of 1 to 1 VDC For current input convert to the voltage value within the range of 0 to 50 mA DC input range x input resistance then apply the conditions above N NOTE The conditions for the2. User s Manual IM 77J01H21 01E 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 gt 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 The following symbols are used only in this manual IMPORTANT Indicates that operating the hardware or software in a particular manner may cause damage or result 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 VJHK 1 Users manual this manual IM 77J01H21 01E 1 Accessories Tag number label 1 sheet Range label 1 sheet Shunt resistor supplied when current input is specified 1 3 GENERAL This plug in type Limit Alarm for DC input
3. 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 Tag no 1 SET VO TAG NO 1 Setting alarm output arm 1 setting SET ALM SET POINTI Tag no 2 TAG NO 2 arm 2 setting SET POINT2 Comment 1 COMMENT1 irection of alarm 1 action ALM1 ACTION Comment 2 COMMENT2 irection of alarm 2 action ALM2 ACTION Input type INP TYPE larm 1 hysteresis HYSTERESIS1 Selection of input hard range SELECT RANGE HYSTERESIS2 Input resistance IN RESIST jarm 1 ON delay setting ON DELAY1 Input low range INPUT1 L_RANGE larm 2 ON delay setting ON DELAY2 Input high range INPUT1 H_RANGE jarm 1 OFF delay setting OFF DELAY1 Direction of output 1 action OUT1 DR 1 A A Di Di A Alarm 2 hysteresis A A A A jarm 2 OFF delay setting OFF DELAY2 Self check result SELF CHK Direction of alarm 1 relay action RL1 ACTION Adjusting items 3 Direction of alarm 2
4. 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 con ditions but take note of accuracy limitations Similar accuracy limitations exist even when AUTO is selected For more information on accuracy limitations see the general specifications of VJHK GS 77J01H21 01E 9 1 3 Input Range Set the 0 value of input range in D22 INPUT1 L_RANGE and the 100 value of input range in D23 INPUT1 H_RANGE numerically within the specified range 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 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 rel
5. J gy Fig 5 1 IM 77J01H21 01E 1st Edition Feb 2001 3rd Edition Aug 2006 YK 5 2 DIN Rail Mounting Locate the VJHK 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 DIN rail here DIN rail LA 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 N 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 VJHK The terminals for external connections are of M3 screws Use crimp on lugs for connections to the terminals e It is recommended that signal
6. al 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 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 77J01H21 01E 3rd Edition 2006 08 15 00 11 LIST OF PARAMETERS 01 Model Display MODEL 02 Tag No TAG NO 03 Self check result SELF CHK Display Display items A Display
7. d 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 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 77J01H21 01E 3rd 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 this adapter to the communica tion connector of JUXTA JUXTA communication cable with 5 pin connector F9182EE JHT200 Comes with VJ77 and JHT200 Handy Terminal
8. eased 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 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 conditio
9. n 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 77J01H21 01E 3rd 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 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 norm
10. rator 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 02E Input oO Calibrator CORK feet a ete cedeee nts 0 i f ey Kee Alarm 2 output P Power supply oa GND Fig 12 1 IM 77J01H21 01E 3rd Edition 2006 08 15 00
11. receives DC current or DC voltage signal 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 YOKOGAWA Yokogawa Electric Corporation Model VJHK Limit Alarm DC Input Type Yokogawa Electric Corporation Network Solutions Business Divisiion 2 9 32 Naka cho Musashino shi Tokyo 180 8750 Japan Phone 81 422 52 7179 Facsimile 81 422 52 6619 JUXTA 4 MODEL AND SUFFIX CODES VJHK 0 20 OT 0 0o O Model We Number of outputs 2 2 outputs 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 Input signal _ _AAAADD AAA A Within the range of 0 to 50 mA DC span is 5 mA or more 1 Within the range of 10 to 10 V DC span is 0 1 V or morel Output signal T Alarm output 2 points of relay contacts Optional specification Blank With socket SN Without socket 5 MOUNTING METHODS 5 1 Wall Mounting 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 or 2 04 5 or more 59 0 3
12. relay action RL2 ACTION Self check result Test items 3 SELF CHK 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 OUT1 100 Q60 Self check result SELF CHK P17 Adjustment of external input resistance RESISTOR ADJ P60 4 2 3 Self check result SELF CHK The indications and settings of the parameters are not available The status is displayed for service personnel to see history records To call the parameter setting items D E P and Q using the JHT200 Handy Terminal execute the following operation Press F1 l ENTER keys D E P or Q key enters A IMPORTANT C above 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 77J01H21 01E 3rd 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 Calib
13. 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 Shunt resistor Externally connected for current input Input signal aN O G G P Alarm 2 output 6 5I4 F T ALM2 NO R 1009 COM Externall gt for current input Power supply Le Alarm 1 output ALM1 NO mao me COM GND Opia Fig 7 1 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 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 an
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