User`s Manual
Contents
1. IM 77J04X11 01E 2nd Edition Nov 30 2005 00 7 LIST OF PARAMETERS 7 1 MXS except for the function suffix code A Parameter Display nem oi 0 06 54 REV No AGO B05 0 60 Doi 0 0 04 27 39 40 D44 Hoa E gt S7 gt gt gt gt o CO El Oo O O O0 U0 U0 0 NM oO P J g O D 5 H59 60 ADJUST Adjustment POs I I 00 U U NIO 2 P28 29 0 Qo Self check result O U oo X 1 The displayed status is to let the service staff know the past records of the product 2 The parameters are the items to be set at the factory 7 2 MXS for the function suffix code A G01 ROGRAM ROGRAM rogram G02 rogram G58 G59 G60 ROGRAM ROGRAM ELF CHK rogram rogram elf check result Fixed Constant of Computing Unit ixed constant ixed constant HO1 H02 ONST ONST Q Parameter Display _ ltem A oseta Display A01 A16 DO Digitaloutput B DiSPLay2 f Display2 B01 Input 1 uiputt utput 2 emporary memory 1 emporary memory 2 emporary memory 3 emporary memory 4 B16 DO Digital output oad factor elf check result D sermo ____ Setting VO D01 ag No 1 ag No 2 Comment Comment 2 nput type nput resistor nput 1 low range nput 1 high range Output 1 low range Output 1 high range ulput 2 low range uiput2 high range D44 rogram selection omputation cycle D60 SELF CHK Self check result G PROG2. Output 2 signal A 4 to 20 mA DC 6 1 to 5V DC Power supply 1 15 40 V DC Operating range 12 to 48 V DC 2 100 240 V AC Operating range 85 to 264 V AC Optional specification R250 With 250 Q receiving resistor 1 MOUNTING METHOD AN NOTE Plug disconnect the main unit into from the socket vertically to the socket face Otherwise the terminals may bend and it may cause bad contact 1 1 Wall Mounting Unfasten the upper and lower stoppers of the computing unit to discon nect the main unit from the socket Next anchor the socket onto the wall with two M4 screws Then plug the main unit into the socket and secure the main unit with the upper and lower stoppers Stopper Mounting screws lt Mounting Dimensions gt Unit mm Pitch 56 or more Note e When mounting the computing units close together leave a space of at least 5 mm between them e Use the supplied spacer to keep a space of 5 mm for DIN rail mounting Socket 2 4 5 or 2 M4 1 2 DIN Rail Mounting Locate the computing unit 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 us ing the slide lock at the lower part of the socket Slide lock 1 3 Using Ducts Wiring ducts should be installed at least 30 mm away from the top or bottom of the main unit 2 INSTALLATION LOCATIONS Avoid the following environments for installation locations Areas wi
3. range resets the input adjusted value E Setting Output 1 Range Set the 0 value of output range in D38 OUT1 L_RNG and the 100 value of output range in D39 OUT1 H_RNG AN NOTE Changing the output 1 range resets the output adjusted value 6 COMPUTING FUNCTIONS 6 1 MXS A Free Program This computing unit is used to meet individual applications by pro gramming the available commands using a PC VJ77 Parameters Setting Tool or the JHT200 Handy Terminal Set the computing pro gram in G01 to G59 6 2 MXS B Moving Average Computation This computing unit stores the input values X sampled at intervals of one fortieth of the moving average time L into 40 buffers in order and outputs the moving average of 40 input values output 1 Y1 output 2 Y2 The output between samplings is smoothed out by in terpolation Minimum sampling time is the set computation cycle Therefore when the moving average time is set shorter the number of samplings is less than 40 When using a first order lag filter for in put X set the first order lag time constant T Set the moving average time L at value in H02 CONST The value of 0 to 100 0 corresponds to that of 0 to 1000 seconds For example enter 6 in H02 to set 60 seconds Setting range of moving average time O to 320000 seconds about 3 7 days with 4 significant digits minimum unit is 1 second however 0 1 second for a setting of 4 seconds or shorter 0 0 to 3
4. 2000 can be set in H02 e g 12345 unacceptable 12340 acceptable Setting accuracy of moving average time 5 0 of set value 1 second Set the first order lag time constant T at value in H01 CONST The value of 0 to 100 corresponds to that of 0 to 100 seconds Setting range of first order lag time constant 1 0 to 799 0 seconds minimum unit is 0 1 second However when not using the first order lag function set 0 sec ond Setting accuracy of first order lag time constant 5 0 of set value 1 second X1 X2 eee X40 40 Note X5 X4 X35 X3 X37 X36 Moving average X2 X1 Computation time P S Time m Note For the moving average times at 3 2 and 1 second the number of samplings is 30 20 and 10 respectively when the computation cycle is 100 ms Xap X39 X38 6 3 MXS C Dead Time Computation This computing unit stores the input values X sampled at intervals of one fortieth of the dead time L into 40 buffers in order and outputs data output 1 Y1 output 2 Y2 after the dead time has elapsed Minimum sampling time is the set computation cycle Therefore when the dead time is set shorter the number of samplings is less than 40 The output between samplings is smoothed out by interpola tion However for the dead times of 3 2 and 1 second the number of sam plings is 30 20 and 10 respectively when the computation cycle is 100ms When using a first order lag
5. Model MXS JUXTA Universal Computing Unit 1 input Isolated 2 output Type User s Manual IM 77J04X11 O1E 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 77J04X11 01E 1st Edition Aug 2005 YK 2nd Edition Nov 2005 YK 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 gt 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 ina particular manner may cause damage or result in a system failure NOTE gt Draws attention to essential information for understanding the operations and or functions of the product 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 main unit are as ordered 2 Packaged Items Check that the package
6. RAM Program of Computing Unit a E S H58 Fixed constant H5 Fixed constant H60 Self check result P0O8 nput 1 zero adjustment nput 1 span adjustment P26 Output 1 zero adjustment P27 Output 1 span adjustment P28 P29 Output 2 span adjustment Qos Q04 paso SELFCHK Seitcheck rest IM 77J04X11 01E 2nd Edition Nov 30 2005 00 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 specified performance 8 1 Calibration Apparatus A DC voltage current standard Yokogawa 7651 or the equivalent A digital multimeter Yokogawa 7561 or the equivalent A precision resistor of 250 Q 0 01 1 W Setting tool for adjustment Refer to 4 2 Connector for Communi cation in this manual ie N Calibration Procedure 1 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 input span to the comput ing unit 3 Check to see the output values obtained from the computation of each input are within the specified accuracy rating R is used for current output Use the setting tool VJ77 Parameters Setting Tool or JHT200 Handy Terminal or the switches on the front panel selection switch and adjustment switch to adjust the input output signals Input Adjustment Procedure 1 I
7. XTA communication cable with 5 pin connector F9182EE Provided with VJ77 and JHT200 JHT200 Handy Terminal Modular jack conversion adapter E9786WH Provided with VJ77 Dedicated adapter E9789HA Provided with VJ77 Dedicated cable E9786Wk Provided with VJ77 PC which is installed wittig ydy Use the VJ77 of version R1 04 or later 4 3 Selection Switch and Adjustment Switch The following adjustments can be performed using the switches on the front panel selection switch and adjustment switch without the dedi cated setting tool refer to 4 2 Connector for Communication The adjusted value is saved about 1 second after operating the adjust ment switch Also when the rotation direction of the adjustment switch is changed the adjusted value becomes effective about 1 second after the change Position of selection switch ltem to be adjusted Output 1 zero adjustment Output 1 span adjustment Output 2 zero adjustment Output 2 span adjustment No function 7 Rotation direction of adjustment switch i Adjustment operation Increase of output adjusted value Counterclockwise Decrease of output adjusted value Adjusted volume by the adjustment switch One click changes about 0 005 of output range 4 3 1 Adjusting Output Using the Switches on the Front Panel 1 Output 1 zero adjustment Turn the selection switch to 1 Then turn the adjustment switch clock
8. contains the following items MXS 1 Range label 1 Spacer 1 Receiving resistor for current input 1 User s Manual this manual IM 77J04X11 01E 1 When the optional specification R250 is specified the 250 Q receiving resistor is attached When the optional specification R250 is not specified the 100 Q receiving resistor is attached GENERAL This plug in type universal computing unit receives DC current or DC voltage signals applies various computing functions to them and then converts them into isolated DC current or DC voltage signals Yokogawa Electric Corporation Network Solutions Business Division 2 9 32 Naka cho Musashino shi Tokyo 180 8750 Japan Phone 81 422 52 7179 Facsimile 81 422 52 6793 MODEL AND SUFFIX CODES MXS LITIUNIUI U B L Model Function A Free program G Limiter B Moving average H Velocity computation C Dead time J Linearizer D 1st order lag K Ratio setter E 1st order lead F Uniform speed response velocity limiter Input signal A 0 to 50 mA DC B O to 10 mA DC 1 10 to 10 V DC 2 2 to 2 V DC Span is 1 mA or more Span is 0 1 mA or more Span is 0 1 V or more Span is 10 mV or more Output 1 signal A O to 20 mA DC B 0 to 5 mA DC 1 0to 10 V DC 2 0 to 100 mV DC 3 10 to 10 V DC Span is 2 mA or more Span is 1 mA or more Span is 0 1 V or more Span is 10 mV or more Span is 0 2 V or more 4 100 to 100 mV DC Span is 20 mV or more
9. econds minimum unit is 0 1 second Setting accuracy of first order lag time constant 5 0 of set value 1 second Yi Y2 X 1 T s e g 0 100 step input a 100 Input 0 63 2 100 Output 0 T 6 5 MXS E First order Lead Computation This computing unit provides a first order lead computation on input X with a time constant T and outputs the result output 1 Y1 out put 2 Y2 Set the time constant T at value in HO1 CONST The value of 0 to 100 corresponds to that of 0 to 100 seconds Setting range of first order lead time constant 1 0 to 799 0 seconds minimum unit is 0 1 second Setting accuracy of first order lead time constant 5 0 of set value 1 second T s 1 T s Y1 Y2 1 e g 0 50 step input oouo M 5 nput 0 sn 7 68 4 100 50 Output 0 T z IM 77J04X11 01E 2nd Edition Nov 30 2005 00 6 6 MXS F Uniform speed Response Velocity Limiter This computing unit limit the input X velocity at the ascending veloc ity limit for a positive change and the descending velocity limit for a negative change and outputs the limited value output 1 Y1 output 2 Y2 When the input velocity slope is no more than the limit value the unit outputs the input as is Set the ascending velocity limit at value in HO1 CONST and the descending velocity limit at value in HO2 CONST The value of 0 to 100 0 corresponds to that of 0 to 100 0 min
10. ent Switch User s Manual for VJ77 Document No IM 77J01J77 01E how ever use the VJ77 of version R1 04 or later User s Manual for JHT200 Document No IM JF81 02E Receiving resistor for current input DC voltge current amp standard 6 R Receiving resistor for current input 6 R 6 R 250 precision resistor R 250 precision resistor for current output for current output 7 IM 77J04X11 01E 2nd Edition Nov 30 2005 00 IM 77J04X11 01E 2nd Edition Nov 30 2005 00
11. filter for input X set the first or der lag time constant T Set the dead time L at value in H02 CONST The value of 0 to 100 0 corresponds to that of 0 to 1000 seconds For example enter 6 in HO2 to set 60 seconds Setting range of dead time O to 320000 seconds about 3 7 days with 4 significant digits minimum unit is 1 second however 0 1 second for a setting of 4 seconds or shorter 0 0 to 32000 can be set in H02 e g 12345 unacceptable 12340 acceptable Setting accuracy of dead time 5 0 of set value 1 second Set the first order lag time constant T at value in H01 CONST The value of 0 to 100 corresponds to that of 0 to 100 seconds Setting range of first order lag time constant 1 0 to 799 0 seconds the value of 1 0 to 799 0 corresponds to that of 1 0 to 799 0 seconds minimum unit is 0 1 second However when not using the first order lag function set 0 sec ond Setting accuracy of first order lag time constant 5 0 of set value 1 second e L s 1 T s Y1 Y2 e g 0 100 step input Output 7 6 4 MXS D First order Lag Computation This computing unit provides a first order lag computation on input X with a time constant T and outputs the result output 1 Y1 output 2 Y2 Set the time constant T at value in H01 CONST The value of 0 to 100 corresponds to that of 0 to 100 seconds Setting range of first order lag time constant 1 0 to 799 0 s
12. n the input de creases 0 for X X 100 When using a first order lag filter for input X set the first order lag time constant T X X 2 Set the velocity computation time L at value in H02 CONST The value of 0 0 to 100 0 corresponds to that of 0 to 1000 seconds For example enter 6 in H02 to set 60 seconds Setting range of velocity computation time O to 320000 seconds about 3 7 days with 4 significant digits minimum unit is 1 second however 0 1 second for a setting of 4 seconds or shorter 0 0 to 32000 can be set in H02 e g 12345 unacceptable 12340 acceptable Setting accuracy of velocity computation time 5 0 o0f set value 1 second Set the first order lag time constant T at value in H01 CONST The value of 0 to 100 corresponds to that of 0 to 100 seconds Setting range of first order lag time constant 1 0 to 799 0 seconds minimum unit is 0 1 second However when not using the first order lag function set 0 sec ond Setting accuracy of first order lag time constant 5 0 of set value 1 second Y1 Y2 50 6 9 MXS J Linearizer Optionally set Line segment Function This computing unit gives an optional relationship between the input X and output output 1 Y1 ouput 2 Y2 signals using an option ally set line segment function The line segment function has 21 breakpoints which each gives an input output relationship as a per centage Set the numbe
13. nput the value equivalent to 0 value of input range 2 Call the display item A DISPLAY1 to check the input value in A01 INPUT1 3 If the adjustment is necessary call the adjustment item P AD JUST 4 Select P08 IN1 ZERO ADJ to enter the adjustment mode Select EXECUTE adjustment for adjustment If RESET is selected the adjusted value is reset to the factory set default 5 Input the value equivalent to 100 value of input range 6 Call the display item A DISPLAY1 to check the input value in A01 INPUT1 7 If the adjustment is necessary call the adjustment item P AD JUST 8 Select P09 IN1 SPAN ADJ to enter the adjustment mode Select EXECUTE adjustment for adjustment If RESET is selected the adjusted value is reset to the factory set default Output Adjustment Procedure 1 When adjusting 0 value of output 1 call the adjustment item P ADJUST to select P26 OUT1ZERO ADu 2 If there is a positive deviation correct it by setting a negative value to offset the deviation If there is a negative deviation cor rect it by setting a positive value The 100 value of output 1 and 0 100 values of output 2 can be adjusted by the same operation as the above For adjustment using a setting tool refer to the User s Manual for each setting tool and 7 List of Parameters in this manual For adjustment using the switches on the front panel refer to 4 3 Selection Switch and Adjustm
14. ources Other wise 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 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 IM 77J04X11 01E 2nd Edition Nov 30 2005 00 Power Supply and Isolation Power supply rated voltage 15 40 V DC or 100 240 V AC 50 60 Hz Power supply input voltage 15 40 V DC 420 or 100 240 V AC 15 10 50 60 Hz Power consumption 24 V DC 2 3 W 100 V AC 4 6 VA 200 V AC 6 4 VA Insulation resistance 100 MQ or more at 500 V DC between input output 1 output 2 power supply and grounding terminals mutually Withstand voltage 2000 V AC for 1 minu
15. r of line segments by 1 to 20 Set the input X at value in HO1 CONST to H21 CONST and the output Y at value in H22 CONST to H42 CONST Setting condition of breakpoints For input 6 0 X H01 to X H21 106 0 with 4 significant digits minimum unit is 0 01 X X lt X lt lt X o For output 6 0 Y H22 to Y H42 106 0 with 4 significant digits minimum unit is 0 01 When input X H01 Y H22 is output When input 2 final set value the final set value of output is output Any number of line segments 1 to 20 can be set in H43 The number of line segments 1 to 20 corresponds 100 to 2000 Computation accuracy 0 1 However when line segment gain is 1 or less 6 10 MXS K Ratio Setter This computing unit sets the ratio by the following expression Y1 Y2 K1 X A1 A2 where Y1 Output 1 signal Y2 Output 2 signal X Input signal K1 Ratio no unit A1 A2 Bias Set the ratio K1 in HO1 CONST and the bias A1 at value in H02 CONST and the bias A2 at value in HO3 CONST Setting range of ratio 320 to 320 with 4 significant digits minimum unit is 0 00001 Setting range of bias 32000 to 32000 with 4 significant digits minimum unit is 0 001 Computation accuracy 0 1 However when the ratio is 1 or less AN NOTE Decide ratio or bias so as not to exceed 3 4x 10 during computation Ratio bias and computation results are 4 significant digits
16. te between input output 1 output 2 power supply and grounding terminals mutually 1000 V AC for 1 minute between output 1 and output 2 terminals 4 DESCRIPTION OF FRONT PANEL The figure below shows the computing unit of which the front panel cover is open Connector for communication Operation indicating lamp Selection switch Turns on at power on Adjustment switch 4 1 Operation Indicating Lamp The operation indicating lamp shows the operation status abnormali ties in a setting and adjustment operation status by the adjustment switch on the front panel 1 When the lamp is lit Power is turned on and the computing unit is in the normal status provided that the selection switch is set to the position 0 2 When the lamp is blinking rapidly The lamp repeats the rapid blinking until the internal processing is completed during output adjustment by the adjustment switch 3 When the lamp is blinking slowly The lamp repeats the slow blinking until the computing unit re gains its normal status when the following abnormalities occur e Abnormalities in a parameter setting e The selection switch is set to the positions other than 0 4 2 Connector for Communication Use the connector for communication when setting the parameters us ing a PC VJ77 Parameters Setting Tool or the Handy Terminal lt How to connect with the setting tool gt JU
17. th vibration corrosive gases dust water oil solvents di rect sunlight radiation a strong electric field and or a strong magnetic field Installation altitude 2000 m or less above sea level 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 com puting unit and a field installed device 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 Wires are connected to the terminals of the computing unit s socket M3 5 screw terminals are provided for the connection of external sig nals Attach a crimp on lug to each wire for connection to the termi nals 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 Receiving resistor for current input T n R Receiving resistor for current input IMPORTANT The power line and input output signal lines should be installed away from noise generating s
18. ute Setting range of velocity limit 0 1 to 699 9 minute minimum unit is 0 1 minute Setting the limit at 700 0 minute or above does not limit the in put so the unit simply outputs the input as is i e works as an open limit function Setting accuracy of velocity limit 5 0 of set value 0 1 minute e g 0 100 0 step input _ J Input 0 Output 0 Ascending velocity limit et Descending velocity limit minute minute 6 7 MXS G Limiter This computing unit serves as an ordinary computing unit as long as the input X is within the upper and lower limits When the input ex ceeds the limit the unit outputs the signal that corresponds to the limit value output 1 Y1 output 2 Y2 Set the upper limit at value in HO1 CONST and the lower limit at value in HO2 CONST Setting range of upper and lower limits 6 0 to 106 0 minimum unit is 0 01 However if the setting is made so that the upper limit lt lower limit the unit outputs the upper limit 6 8 MXS H Velocity Computation This computing unit calculates the input velocity by subtracting the in put of the last velocity computation XL from the present input X The unit then adds a 50 bias to one half of the obtained velocity and out puts the result output 1 Y1 output 2 Y2 The output results is 50 when the input is not changed 50 or more when the input in creases 100 for X X 100 and 50 or less whe
19. wise to increase the output or turn it counterclockwise to de crease the output 2 Output 1 span adjustment Turn the selection switch to 2 Then turn the adjustment switch clockwise to increase the output or turn it counterclockwise to de crease the output Output 2 can be adjusted by the same operation as the above 3 Output 2 zero adjustment Turn the selection switch to 3 Use the adjustment switch for ad justment 4 Output 2 span adjustment Turn the selection switch to 4 Use the adjustment switch for ad justment AN NOTE e Be sure to set the selection switch back to the position 0 after each adjustment Otherwise it may cause an incorrect operation or malfunction because the positions other than 0 are adjustment modes e When the selection switch is set to the positions other than 0 the setting tool can not be used for the setting IM 77J04X11 01E 2nd Edition Nov 30 2005 00 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 JF81 02E Parameters are indicated inside the E Setting Input Range Set the 0 value of input range in D27 INPUT1 L_RNG and the 100 value of input range in D28 INPUT1 H_RNG AN NOTE Changing the input
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