User`s Manual
Contents
1. Y 2 Modular jack conversion adapter E9786WH Provided with VJ77 Dedicated adapter E9789HA Provided with VJ77 Dedicated cable E9786WK Provided with VJ77 PC which is installed with the VJ77 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 Item to be adjusted No function Output zero adjustment ESA Output span adjustment 6 Input zero adjustment Input span adjustment Rotation direction of adjustment switch Adjustment operation l Increase of output adjusted value and adjustment of input Decrease of output adjusted value and lt SONEGAS reset of input 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 zero adjustment Apply the 0 input signal Turn the selection switch to 1 Then turn the adjustment switch clockwise to increase the output or turn it counterclockwise2. 1 O Spacer for DIN rail mounting 1 O Range label 1 O User s Manual this manual IM 77J04H05 01E 1 The 250 Q receiving resistor is attached for the optional specifica tion R250 the 100 Q receiving resistor is attached for the op tional specification R100 GENERAL The MH5 is a plug in type isolator that converts DC current or DC volt age signals 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 MH5 01L LILI0L L A E Model Output 1 1 output Power supply 1 15 40V DC Operating range 12 to 48 V 6 100 240 V AC DC Operating range 85 to 264 V Input signal A 20 to 20 mA DC with 250 Q receiving resistor B 50 to 50 mA DC with 100 Q receiving resistor 1 10 to 10 V DC 2 2 to 2 V DC Z Custom order Customized current signals or voltage signals Output signal A 0 to 20 mA DC Span is 5 mA or more B 0 to 5 mA DC Span is 1 mA or more 1 10 to 10 V DC 2 100 to 100 mV DC Z Custom order Customized current signals or voltage signals Span is 0 1 V or more Span is 10 mV or more Breakpoint linearization 0 Not available 1 Available Optional specification SN Without socket R100 With 100 Q receiving resistor R250 With 250 Q receiving resistor mb
3. 1 MOUNTING METHOD Ah 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 isolator to disconnect 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 Mounting screws Mounting Dimensions Pitch 56 or more Unit mm Note e When mounting the 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 34 5 or 2 M4 1 2 DIN Rail Mounting Locate the isolator 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 A Push DIN rail Rear of the socket Slide lock 1 3 Using Ducts Wiring ducts should be installed at leaset 30 mm away from the top or bottom of the main unit 2 INSTALLATION LOCATIONS O 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 Installation altitude 2000 m or less
4. 5 4 Setting Input Range Set the input range 0 in D27 INPUT1 L_RNG and the input range 100 in D28 INPUT1 H_RNG 5 5 Setting Output Range Set the output range 0 in D38 0UT1 L_RNG and the output range 100 in D39 0UT1 H_RNG Ah NOTE Changing the input range or output range resets the adjusted value 6 LISTOF PARAMETERS Parameter Display Mem TA DISPLAYI Dieplayi_ B ISPLAV2 Display2 2 D semu Setting Wo D60 SELFCHK Self checkeresult m XTABLE Input breakpoint table Pp EEE N YTABLE Output breakpoint able op P ADJUST adjustment Pos INT SPAN ADJ Input t span adjustment Peo SELF CHK Sel cheokresut a meer est 060 SELFCHK Seltcheck result 1 The displayed status is to let the service staff know the past records of the product 2 The parameter becomes effective when SQR is selected in D14 LINEARIZE 3 The parameters are the items to be set at the factory IM 77J04H05 01E 1st Edition Jul 29 2005 00 7 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 7 1 Calibration Apparatus O ADC voltage current standard Yokogawa 7651 or the equivalent O A digital multimeter Yokogawa 7561 or the equivalent O A precision resistor of 250 Q 0 01 1 W O A setting tool for adjustment Refer to 4 2 Connector for Communication in this mnual 7 2 C
5. grounding cable should be as short and thick as possible Directly connect the lead from the ground terminal terminal no 6 of the product to the ground Do not carry out daisy chained inter ground terminal wiring O 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 O Do not operate the product in the presence of flammable or explosive gases or vapors To do so is highly dangerous O 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 77J04H05 01E 1st Edition Jul 29 2005 00 Power Supply and Isolaion Power supply rated voltage 15 40 V DC or 100 240 V AC DC 50 60 Hz Power supply input voltage 15 40 V DC 20 or 100 240 V AC DC 15 20 50 60 Hz Power consumption 24 V DC 1 7 W 110 V DC 1 6 W 100 V AC 3 5 VA 200 V AC 4 9 VA Insulation resistance 100 MQ at 500 V DC between input output power supply and grounding terminals mutually Withstand voltage 2000 V AC for 1 minute between input output power supply and grounding terminals mutually 4 DESCRIPTION OF FRONT PANEL The figure below shows the isolat
6. ET is selected the adjusted value is reset to the factory set default Output Adjustment Procedure 1 When adjusting 0 value of output call the adjustment item P ADJUST to select P26 OUT1ZERO ADJ If it slips out to side set value equivalent to slipout if slips out to side set value equivalent to slipout The 100 value of output can be adjusted by the same operation as the above 2 gt u For adjustment using a setting tool refer to the User s Manual for each setting tool and 6 List of Parameters in this manual For adjustment using the switches on the front panel refer to 4 3 Selection Switch and Adjustment 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 S G DC voltge Ri 3 current 4 O standard Ri Receiving resistor for current input DO R Digital O a de multimeter Ro 250 Q precision resistor for current output Power supply 5 IM 77J04HO5 01E 1st Edition Jul 29 2005 00 IM 77J04H05 01E 1st Edition Jul 29 2005 00
7. S Model MH5 JUXTA Isolator Free Range Type IM 77J04H05 01E Please read through this User s Manual before use for correct handling Please keep this User s Manual for future reference YOKOGAWA 4 Yokogawa Electric Corporation 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 IM 77J04H05 01E 1st Edition Jul 2005 YK 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 A IMPORTANT Indicates that operating the hardware or software in a particular manner may cause damage or result in a system failure gt NOTE 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 contains the following items O MH5 1 O Receiving resistor for currrent input
8. above sea level O lf 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 isola tor and a field installed device O Operating temperature humidity range O to 50 C 5 to 90 RH no condensation 3 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 Wires are connected to the terminals of the isolators socket M3 5 screw terminals are provided for the connection of external signals At tach 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 Receiving resistor for current input 7 Power Supply R Receiving resistor for current input External receiving resistor for current input Be sure to attach a supplied 100 Q or 250 Q receiving resistor for current input AY IMPORTANT O The power line and input output signal lines should be installed away from noise generating sources Other wise accuracy cannot be guaranteed O The grounding resistance must be 100 Q JIS Class D grounding The length and thickness of the
9. al 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 5 1 Setting Square Root Extractor Set with square root extractor or without square root extractor in D14 LINEARIZE SQR for with square root extractor and OFF for without square root extractor 5 2 Setting Lowcut Point Set a numeric value in D15 LOW CUT when with square root extrac tor is selected O Setting range 0 3 to 100 of the input range setting resolution 0 1 Output signal Y Input signal X Hysteresis Lowcut point approx 0 2 fixed 5 3 Setting Breakpoint Linearization 1 Set the breakpoint linearization in D14 LINEARIZE Select ON to use the breakpoint linearization Select OFF not to use the breakpoint linearization 2 Set the breakpoints data Set the input breakpoints data in M01 X TABLE to M32 X TABLE Set the number of breakpoints data in M33 MAX POINT Set the output breakpoints data in NO1 Y TABLE to N32 Y TABLE O Setting condition of breakpoints data Maximum number of breakpoints 32 Setting range 6 to 106 both input and output e Set a relationship between the input and outpout at value to the span e With 4 significant digits can be set to the second place of a decimal point e For input 6 00 X0 lt X1 lt X2 Xn 1 lt Xn 106 0 e For output 6 00 Yo lt Y1 to Yn lt 106 0
10. alibration Procedure 1 Connect the instruments as shown below 2 Use the DC voltage current standard and apply input signals equivalent to 0 25 50 75 and 100 of input span to the isolator When with square root extractor is selected apply input signals equivalent to 0 6 25 25 56 25 and 100 of input span to the isolator 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 O Use the setting tool VJ77 Parameter 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 Input 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 DISPLAY 1 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 RES
11. or of which the front panel cover is open Connector for communication oul Selection switch SEL LO ADJ Operation indicating lamp 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 isolator is in the normal status pro vided 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 I O adjustments by the adjustment switch When the lamp is blinking slowly The lamp repeats the slow blinking until the isolator regains 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 e Input is outside of the range of 10 to 110 3 4 2 Connector for Communication Use the connector for communication when setting the parameters us ing a PC VJ77 Parameter Setting Tool or the Handy Terminal lt How to connect with the setting tool gt JUXTA communication cable with 5 pin connector F9182EE JHT200 Provided with VJ77 and JHT200 Handy Terminal
12. to decrease the output 2 Output span adjustment Apply the 100 input signal Turn the selection switch to 2 Then turn the adjustment switch clockwise to increase the output or turn it counterclockwise to decrease the output 4 3 2 Adjusting Input Using the Switches on the Front Panel When performing the zero span adjustment of input be sure to turn the adjustment switch counterclockwise to reset the adjusted value at first 1 Input zero adjustment Apply the 0 input signal Turn the selection switch to 5 Then turn the adjustment switch clockwise to adjust the input read value or turn it counterclockwise to reset the adjusted value 2 Input span adjustment Apply the 100 input signal Turn the selection switch to 6 Then turn the adjustment switch clockwise to adjust the input read value or turn it counterclockwise to reset the adjusted value AN NOTE O 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 O When the selection switch is set to the positions other than 0 the setting tool can not be used for the setting IM 77J04HO5 01E 1st Edition Jul 29 2005 00 5 SETTING PARAMETERS Set the parameters using a PC VJ77 Parameter Setting Tool or the Handy Terminal Refer to 6 List of Parameters in this manual and the User s Manu
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