User`s Manual
Contents
1. U U U N O U oO 0 QO gt 8 gt ow N 4 IM 77J03M01 02E 2nd Edition May 21 2004 002. Connect the instruments as shown below First adjust the output 1 signal and then the output 2 signal 2 Use the DC voltage current standard and apply input signals equivalent to 0 25 50 75 and 100 of the input span to the iso lator 3 Check to see the corresponding output voltages are 0 25 50 75 and 100 respectively and within the specified accuracy rating R is used for current output lf the output signals are out of the accuracy rating range adjust the output signal level through a setting tool VJ77 Parameter Set ting Tool or JHT200 Handy Terminal or using the selection switch and adjustment switch on the front panel For adjustment through a setting tool see each user s manual of setting tool and Chapter 10 List of Parameters For adjustment using the switches on the front panel see Section 7 3 Selection Switch and Adjustment Switch VJ77 user s manual VJ77 PC based Parameter Setting Tool IM 77J301J77 01E JHT200 user s manual JHT200 Handy Terminal IM JF81 02E Power supply Input oie 5 e standar O 6 Q Output 1 5 Output 1 Si Digital MHo multimater R 250 Q precision resistor for current output 5 Digital GH multimater R 250 Q precision resistor for current output IM 77J03M01 02E 2nd Edition May 21 2004 00 10 LIST
3. manual JHT200 Handy Terminal IM JF81 02E The description in the indicates the parameters AN NOTE Changing the input range and the burnout action direction resets the input adjusted value and the wiring resistance corrected value Execute the wiring resistance correction when the burnout action direction or input wiring is changed 8 1 Setting Input Range Set the input range 0 in D27 INPUT1L_RNG and the input range 100 in D28 INPUT1H_RNG Setting range Within 60 to 240 mV DC 3 mV of span minimum 8 2 Setting Burnout Action Set the burnout action in D43 BURN OUT Set OFF UP or DOWN 8 3 Correcting Wiring Resistance Correct the wiring resistance in PO1 WIRING R Select EXECUTE for correction and RESET for resetting the cor rected value Perform wiring as the figure shown in Subsection 7 3 2 Correcting wiring resistance using the switches on the front panel before correct ing wiring resistance 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 specified performance 9 1 Calibration Apparatus A DC voltage current standard Yokogawa 7651 or the equivalent A digital mutimater Yokogawa 7561 or the equivalent A precision resistor of 250 Q 0 01 1 W A setting tool for adjustment See Section 7 2 Communication Connector N Calibration Procedure 1
4. OF PARAMETERS Parameter Display stem MODEL TAG NO SELF CHK Self check result DISPLAY1 Display1 A01 NPUT1 Input 1 0 OUTPUT1 Output 1 0 OUTPUT2 Output 2 A54 STATUS Status 56 REV NO REV No 58 MENU REV MENU REV A60 SELF CHK Self check result DISPLAY2 Display2 01 NPUT1 Input 1 0 OUTPUT1 Output 1 08 OUTPUT2 Output 2 B60 SELF CHK Self check result SET I O Setting I O D01 TAG NO 1 Tag number 1 0 TAG NO 2 Tag number 2 0 COMMENT 1 Comment 1 D04 COMMENT2 Comment 2 D13 LINEARIZE Linearize D60 SELFCHK Selt checkresut P ADJUST f Adjustment gt P01 WIRING R Wiring resistance correction 0 IN1 ZERO ADJ Zero adjustment of input 1 03 IN1 SPAN ADJ Span adjustment of input 1 26 OUT1ZERO ADJ Zero adjustment of output 1 2 OUT1SPAN ADJ Span adjustment of output 1 P28 OUT2ZERO ADJ Zero adjustment of output 2 2 OUT2SPAN ADJ Span adjustment of output 2 SELF CHK Self check result TEST Test OUT1 TEST Forced output 1 OUT2 TEST Forced output 2 SELF CHK Self check result 1 The displayed status is to let the service staff know the past records of the product The parameters are the items to be set at the factory Execute the following operations when indicating D P or Q through JHT200 Handy Terminal Press lt F1 gt key key and lt ENTER gt key in this order Enter D P or Qin gt gt oo N gt gt ee N JJJ NO oo aol NO
5. User s Model JM12 JUXTA Manual Isolator 2 output mV Input Free Range Type IM 77J03M01 02E Please read through this User s Manual before use for correct handling Please keep this User s Manual for future reference YOKOGAWA Yokogawa Electric Corporation IM 77J03M01 02E 1st Edition Apr 2004 YK 2nd Edition May 2004 YK 1 CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT This User s Manual should be carefully read before installing and oper ating the product The following symbol is used on the product and in this manual to ensure safe use A This symbol is displayed on the product when it is necessary to refer to the User s Manual for information on personnel and instrument safety This symbol is displayed in the User s Manual to indicate precautions for avoiding danger to the operator such as an electric shock The following symbols are used only in this manual AY IMPORTANT Indicates that operating the hardware or software in a particular manner may cause damage or result in a system failure AN NOTE Draws attention to essential information for understanding the operations and or functions of the product 2 CHECKING PRODUCT SPECIFICATIONS AND PACKAGED ITEMS 1 Checking the Model and Product Specifications Check that the model and specifications indicated on the nameplate attached to the front face of the main unit are as ordered 2 Packaged Items Check that the pac
6. 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 9 of the product to the ground Do not carry out daisy chained inter ground terminal wiring 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 7 PART NAMES OF FRONT PANEL The figure below shows the JM12 with its front panel cover being open Communication connector Operation indicating Selection ane switch Adjustment switch 7 1 Operation Indicating Lamp The operation indicating lamp shows the operating status abnormal setting and adjustment operating status using the adjustment switch on the front panel 1 When the lamp is lit Powe
7. king carton contains the following items JMi2 1 Spacer used for DIN rail mounting 1 Range labels 2 User s Manual this manual IM 77J03M01 02E 1 copy 3 GENERAL The JM11 is a plug in type isolator that converts mV DC voltage sig nals into isolated DC current or DC voltage signals 4 MOUNTING METHOD gt 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 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 6793 4 1 Wall Mounting Remove the stoppers top and bottom from the product and pull out the main unit from the socket Fix the socket on the wall using two M4 screws Next insert the main unit into the socket and fasten the main unit with the stoppers top and bottom Mounting screws Mounting Dimensions Unit mm Pitch 56 or more 5 or more Note SOCKS gt H 1 More than 5 mm interval is required for side by side 2 4 5 or 2 M4 close mounting 2 Use the supplied spacer for DIN rail mounting to keep 5 mm interval 4 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 fixed into position as shown below Rea
8. ment switch Also when the rotating direction of the adjustment switch is changed the adjusted value becomes effective about 1 second after the change Position of selection switch Items to be adjusted Zero adjustment of output 1 Span adjustment of output 1 Zero adjustment of output 2 Span adjustment of output 2 5 Wiring resistance correction Rotating direction of adjustment switch Action to be adjusted l Increase of output adjusted value and Vee Clockwise i execution of wiring resistance correction Decrease of output adjusted value and A Counterclockwise oe reset of wiring resistance corrected value IM 77J03M01 02E 2nd Edition May 21 2004 00 Adjusted volume by adjustment switch One alick changes about 0 005 of the output range 7 3 1 Adjusting output using the switches on the front panel 1 Zero adjustment of output Turn the selection switch to 1 Rotate the adjustment switch clockwise to increase the output and counterclockwise to de crease the output 2 Span adjustment of output Turn the selection switch to 2 Rotate the adjustment switch clockwise to increase the output and counterclockwise to de crease the output Output 2 can be adjusted by the same operations as above 3 Zero adjustment of output 2 Turn the selection switch to 3 An adjustment switch adjusts 4 Span adjustment of output 2 Turn the selection switch to 4 An adjustment switch adjusts 7 3 2 Correcting wi
9. r is turned on and the distributor is in the normal status pro vided that the selection switch is turned to the position 0 2 When the lamp is flashing rapidly The lamp repeats the rapid flashing until the internal processing is completed during output adjustments and the wiring resistance correction using the adjustment switch 3 When the lamp is flashing slowly The lamp repeats the slow flashing until the distributor regains its normal status when the following abnormalities occur Abnormal parameter setting The selection switch is turned to the positions other than 0 Input is out of the range of 10 to 110 7 2 Communication Connector The communication connector is used when setting the parameters through a PC VJ77 Parameter Setting Tool or the Handy Terminal JUXTA communication cable with 5 pin connectors F9182EE JHT200 Provided with VJ77 JHT200 Handy Terminal if A Modular jack conversion adapter E9786WH Provided with VJ77 Dedicated adapter E9789HA Provided with VJ77 Dedicated cable E9786Wk Provided with VJ77 E CCLLLLLELLLLLL m m PC 7 3 Selection Switch and Adjustment Switch The following adjustments can be made using the switches on the front panel selection switch and adjustment switch without the dedicated setting tool see Section 7 2 Communication Connector The adjusted value is stored about 1 second after operating the adjust
10. r of socket Slide lock 4 3 Using a Duct When using a wiring duct install the duct at leaset 20 mm away from the top and bottom faces of the main unit 5 INSTALLATION LOCATIONS Avoid the following environments for installation locations Areas with vibration corrosive gases dust water oil solvents di rect sunlight radiation a strong electric field and or a strong magnetic field 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 unit and a field installed device 6 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 prod uct The terminals for external connections are of M3 5 screws Use crimp on terminal lugs for connections 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 Power Supply AY IMPORTANT The power line and input output signal lines should be installed away from noise generating sources Other wise accuracy
11. ring resistance using the switches on the front panel When an error occurs due to the influence of the input wiring resis tance perform the wiring as the figure below apply a stable input and execute the following operations Then the wiring resistance can be corrected automatically JM12 Two signal lines are connected to the same terminal of one side Be sure to rotate the adjustment switch counterclockwise to reset the corrected value before executing the wiring resistance correction 1 Executing the wiring resistance correction Turn the selection switch to 5 and rotate the adjustment switch clockwise Then the wiring resistance is adjusted after 1 second automatically 2 Resetting the wiring resistance corrected value Turn the selection switch to 5 and rotate the adjustment switch counterclockwise Then the adjusted value is reset after 1 sec ond A NOTE Make sure to turn the selection switch back to the position 0 after each adjustment The positions other than 0 mean the adjustment modes and it may cause a wrong operation When the selection switch is turned to the positions other than 0 setting through the setting tool is impossible 8 SETTING PARAMETERS Set the parameters through a PC VJ77 Parameter Setting Tool or the Handy Terminal For details how to set see Chapter 10 List of Pa rameters Users manual VJ77 PC based Parameter Setting Tool IM 77J01J77 01E or User s
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