OPEratING INStructIONS ”pulse–generator tB2“ testbox
Contents
1. y A Y A Y Signal from channel 1 t A y A y A Y Signal from channel 2 Change in the direction of rotation n Q 0 Fig 1 Change of direction of the quadrature signals gt if VSE measurement 2 Using the manual mode of operation The manual mode of operation is used as follows p General operation of the manual mode of operation Mode MANUAL Start Mode of operating display Status of the frequency output 100 Frequency Displays the current frequency output split gt FRQ 0001201 Hz Frequency entry menu item the menu items a Change between each of gt change Mode VS I Mode of operation selection menu item Entering the selected menu item Changing the direction of rotation Splitting the frequency output 10 1 100 direction split i a Enable Disable of frequency output 000 Splitting the frequency output 10 20 30 40 50 start stop D 60 70 80 90 100 2 3 split roo Operation of the frequency entry menu item Frequency entry menu item B Mode MANUAL Start lt gt Changing the cursor position Direct entry of the numbers 100 Frequency OG Changing the direction of rotation o xFRQ 000120 1 Hz Je ES in he entry direction Ener Confirmation of the entered frequency value Enter 22. US gallons per minute USgal min GPM US gallons per hour USgal h GPH US gallons per second USgal s GPS Frequency display Hz Hz Table 1 programmable units With these options one is explicitly able to simulate flows in order to set and optimize the evaluation and converter units correspondingly without taking the fluid circulation into operation or having to make an installation The construction size VS I interpolation factor IPF flow meter value Q and the flow unit are stored after they have been entered in the device 2 Using the VS 1 mode of operation VSE measurement You will find a detailed description of the usage of the VS l menu on the following pages General operation of the VS I mode of operation lt gt Change between each of the menu items Entering the selected nter menu item Changing the flow direction direction Enable Disable the flow output start stop Direct changing of the unit unit Mode VS I Stop Mode of operation display Status of the flow output gt VS I 0 02 gt IPF 10 VS l size menu interpolation factor IPF menu 90 Flow Current flow output split display gt Q 00001 25 l min Flow entry menu item gt change Mode SWEEP Mode of operation selection menu item Splitting the flow output 10 1 100 split B 9f ae Splitting the flow output 10 20 30 40 50 2 60 70 80 90 100 room split O
3. pulse generator TB2 Example 1 Az pos direction L Settings Sweep UP FRQ_1 gt FRQ_2 FRQ_1 000000 0Hz FRQ_2 002000 0Hz Start on zero off SweepTime 005 0s No of loops 0002 neg direction Example 2 Hz os direction i T Settings 2000 0 Sweep DOWN FRQ_2 gt FRQ_1 FRQ_1 000100 0Hz FRQ_2 002000 0Hz Start on zero off SweepTime 005 0s No of loops 0002 neg direction Example 3 Hz pos direction Settings Sweep UP FRQ_1 gt FRQ_2 FRQ_1 002000 0Hz FRQ_2 002000 0Hz Start on zero off SweepTime 005 0s No of loops 0002 s 7 2000 0 neg direction VSE measurement Example 4 Settings Sweep UP DOWN FRQ_1 gt FRQ_2 gt FRQ_1 FRQ_1 02000 0Hz pos direction g FRQ_2 02000 0Hz Start on zero on SweepTime 005 0s No of loops 0002 neg direction Example 5 Hz pos direction i Settings Sweep DOWN UP FRQ_2 gt FRQ_1 gt FRQ_2 FRQ_1 0500 0Hz FRQ_2 02000 0Hz Start on zero off SweepTime 005 0s No of loops 0002 neg direction 3 Operating the sweep mode of operation Adjusting the sweep parameters General operation of the sweep mode of operation Mode SWEEP Start Mode of operation display Status of the sweep output gt Sweep UP DOWN Sweep functions selection menu item gt FRQ_1 000250 0Hz Frequency entry FRQ_1 menu i
4. identifies the constructional size of a flow meter The two channel incremental output of the digital signals provides a higher measured value resolution and a detection of the flow direction An explicit simulation of the flow values of these flow meters is possible in the VS I mode of operation The constructional sizes of the VS I are included in a menu item in a se lectable tabular form The corresponding interpolation factor can also be selected when using VSI flow meters This is to be programmed with 1 when using the standard VS version The desired flow is directly entered using the numeric keys A corresponding flow unit is to be set prior to this A choice can be made from seven different units The flow entry field is adapted in accordance with the selected construction size and unit The unit can also be changed during operation by using the unit key The flow meter value display is changed automatically If the unit Hz should be selected the corresponding output frequency is displayed taking the set frequency split parameter and the IPF factor into account Furthermore in this mode it is also possible to have the flow meter value or frequency respectively displayed as a percentage of the entry by i the split key or a corresponding key combination e g and Fig 2 VSE flow meters Unit Display Liters per minute l min l min Liters per hour l h l h Liters per second l s l s
5. x 98 x 34 8 mm ABS acrylonitrile butadiene styrene graphite gray IP64 15 VSE measurement VSE Volumentechnik GmbH H nnestra e 49 58809 Neuenrade Germany Phone 49 0 2394 61630 Fax 49 0 2394 61633 E Mail info vse flow com Internet www vse flow com 02 10 www plakart de
6. 3 sweep mode setting of linear sweep ranges between two frequency values 17 The manual operating mode 1 1 Description of the manual operating mode The manual operating mode enables a direct entering of the user related frequency The desired frequency can simply be entered using the numeric keypad The entered frequency will be stored after it has been acknow ledged The output of the incremental pulses is started and stopped using the separate start stop key 8 The direction of rotations can be changed i e the phase position of both of the quadrature signals can be shifted by 90 see Fig 1 using the direction key An additional function is pro n Q pos direction of rotation The operation of the pulse generator TB2 testbox is quickly understanda ble and utilizes the simple keypad vided by the key with which the entered frequency can be directly split If only this key is activated the frequency is output in the following percentages 10 1 100 In combination with a numeric key it is possible to enter the frequency in percentages of 10 e g pressing the keys and 6 simulta neously results in 60 of the entered frequency being output The frequency display is updated accordingly neg direction of rotation lt t pos direction of rotation from A3B gt lt _ neg direction of rotation from B 9 A gt
7. 5 gt change Mode vs I Return to the menu item selection Increase the selected number 1 v Decrease the selected number 1 Operation of the mode of operation selection menu item Mode of operation selection menu item Mode MANUAL Start 100 Frequency gt FRQ 0001201 Hz Y Selection of the mode of operation xchange Mode VS I Confirmation of the selected mode of operation Entering the selected mode of operation or return to the menu item selection VSE measurement The VS I mode of operation 1 Description of the VS I mode of operation The VS l VS I flow meter series mode of operation was especially developed for the VS I flow sensor system from VSE Volumentechnik GmbH Flow meters made by VSE Volumentechnik GmbH measure the volume flow of liquids according to the toothed wheel principle A pair of very precisely adjusted toothed wheels in the housing constitutes the meter A signal pick up system registers the meter rotation free of contact and tooth by tooth Each tooth is output as a digital pulse The gaps in the teeth of the meter wheels form meter chambers in the areas in which they are completely enclosed by the housing walls these chambers digitalize liquid flow depen ding on their chamber volume The liquid flow quantity within one meter ro tation of a tooth division forms the volume measurement per pulse V_ and is defined in cm3 pulse It
8. HTL level 10 28 V or in a RS422 format level 2 3 V M12 plug special 2x complementary pulse output Pin 2 Channel B Pin 1 Channel A BNC socket Trigger output TRIGOUT channel B Pin 3 channel A Fig 3 The pulse generator TB2 testbox connections VSE measurement ration fax 150 kHZ as requested Each signal is hereby transmitted to 2 lines with complementary levels The logic level is determined at the receiver on the basis of the difference between the two lines A B and A B This makes long transmission links possible in addition to increasing the interfe rence immunity The connection cable should only be a well screened cable with a wire cross section of 2 4 x 0 25 mm Please note that the round M12 plug has a metallic housing a connection for the shielding and that the potential of the grounding conductor PE or the ground is connected to the cable screen M12 plug standard power supply 2x pulse output Pin 2 digital signal Ist channel Pin 1 power supply U 10 28 VDC Pin 4 digital signal 2nd channel Pin 3 power supply GND U 0 V 13 VSE measurement M12 standard VSE connecting cable Evaluation unit e g display U 10 28V DC signal input 1 Channel 1 _ ji EE U GND GND signal ag ee ee ee ee eee input 2 PE GND Channel 2 2 w 0000A Channel A Channel A di
9. VSE measurement OPERATING INSTRUCTIONS pulse generator TB2 Testbox Generator for generating A and B quadrature signals Soon BH88 nao gogo VSE Volumentechnik GmbH H nnestra e 49 58809 Neuenrade Germany Phone 49 0 2394 61630 Fax 49 0 23 94 616 33 E Mail info vse flow com Internet www vse flow com Contents Page Safelyinstruchons ern wedu aus se dada ned Aha oa Are Bean 3 General technical data 0 00 teen nee e tenes 3 General informations cea ges nee dou chive hend Rhein 3 Des ripfion ee ccc etctaadet teenie nenn oe eae Cea tee eas 4 The manual operating mode cece cece nett ene t teen nes 4 1 Description of the manual operating mode 000 e cece eee eee 4 2 Using the manual mode of operation 000 0 e cee eee eee eee 5 The VS I mode of operation 22 222222eeseeeneeeeseeneeeeeneen seen 6 1 Description of the VS I mode of operation 00 00 cee eee eee eee ee 6 2 Using the VS I mode of operation 0 cece e eee 7 The sweep mode of operation 000 e cece cee cence teen eens 8 1 Description of the sweep mode of operation 00 eee eee eee eee 8 2 Functions of the sweep mode of operation 00 00 cece eee eee eee 9 3 Operating the sweep mode of operation 000 e cee ence eee eens 10 Resetting to the works setting 00 nayi a
10. e sweep mode of operation 1 Description of the sweep mode of operation The sweep operation enables the scan or sweep of a fixed range between two frequency values The start frequency end frequency and the sweep time are programmed Different frequency directions can also be selected One function permits the starting of the sweep process with null or in a null scan respectively This enables the simulation of the most diverse incremental frequency processes such as a flow characteristic for a servo valve The sweep characteristic is linear ramp It should however be taken into account that the frequency is actually changed incrementally and not line ar It should also be taken into account how the device actually reacts if ex treme sweep time and sweep range combinations are used In sweep mode the software generates a table with 1200 intermediate frequencies inclu ding the stipulated start and end frequencies In the activated sweep mode each used frequency has to be extracted from the table and processed The frequency resolution of the steps depends on the programmed sweep range and the sweep time or sweep rate respectively A wide sweep range and a fast sweep rate result in a very rough frequency resolution of the steps Gene rally speaking sweeping is normally used in context of a measuring data recording or with an oscilloscope in order to test the frequency behavior of evaluation devices or circuits M
11. e entered frequency value Return to the menu item selection Operation of the mode of operation selection menu item Mode SWEEP Start gt Sweep UP DOWN gt FRQ_1 000250 0 Hz gt Start on zero off gt Sweep Time 010 5s gt No of loops 0100 xchange Mode MANUAL 12 Mode of operation selection menu item Selection of the mode of operation Confirmation of the selected mode of operation Enter Entering the selected mode of operation menu or return to the menu item selection e Resetting to the works setting The testbox can be reset by pressing the keys v lt gt simultan eously This key combination initiates the reset process The power failure safe memory is hereby reloaded with default values before being reset I After the reset the pulse generator TB2 is in the manual mode of ope pulse generator TB2 testbox connections The pulse generator TB2 testbox has a M12 plug and a BMC socket as standard The device is provided with power and outputs the incremental pulse signals via the M12 plug A connection diagram is shown in Fig 4 The TRIGOUT trigger outlet for the sweep operation is at the BNC socket Special versions are equipped with an additional M12 plug on the device This is situated between the standard M12 plug and the BNC socket see Fig 3 At this plug the digital signals can be differentially output at this plug with the supply voltage
12. ff signal input A diff signal input B Channel B BNC coaxial cable Channel B BNC socket TRIGOUT low active pulse generator TB2 Fig 4 Connecting diagram for the power supply and the signal outputs 14 Technical data Power supply Supply voltage Current consumption Signal outputs standard Signal voltage output channel 1 channel 2 Signal output current Output preamps Additional signal outputs special Signal output Signal output level Signal voltage output Signal output current Output preamps Housing Dimensions Material Color System of protection VSE measurement U 10 28 V DC voltage reversal safe I 42 mA at 24 V DC unloaded U 9 27V DC S lour 300 mA max at 24 V DC channel 1 channel 2 Push Pull preamps current limited short circuit proof internal cable adaptation low saturation voltage temperature protection circuit with hysteresis high impedance outlets in case of failures Channel A A with inversion Channel B B with inversion HTL level 10 30 V or RS422 level U 8 27 V DC differential with HTL U 0 4 3 2 V DC differential with RS422 lour 200 mA with HTL lour 20 mA with RS422 Push Pull preamps current limited short circuit proof internal cable adaptation with HTL or RS422 driver AM26C31 f 150 kHz L x W x H 209 3
13. nd M12 plug General information It is not possible to imagine not using incremental measuring systems in almost all industrial areas This technology is wide spread for flow metering in fluid engineering and rotational speed counting in motion power engineering Additional applications are path measuring position measuring and speed measuring in industrial system solutions With the pulse generator TB2 testbox from VSE Volumentechnik GmbH incremental sensor signals or two 90 phase shifted pulse signals A and B are generated respectively This pulse generator is able to generate frequen cies of between 0 1Hz and 250 000 0Hz The resolution is 0 1Hz The in cremental rotary encoder signals can either be adjusted by directly entering the frequency or by using a special menu to specify flow meter values from the VS I series of VSE flow meters The construction size interpolation factor and the corresponding flow unit are taken into account when generating the flows An additional menu can be used to run through stipulated frequency ranges Hereby the direction of rotation is switched depending on the set frequency range i e the phase position of both of the quadrature signals A and B is shifted by 90 null It is a very useful and inexpensive means for the simulation of incremental encoder signals Simulates the output signals of incremental measuring systems A B with 90 phase shifting Sweep function which take
14. ng of the numbers gt change Mode MANUAL alala Confirmation of the entered frequency value Return to the menu item selection Operation of the start on zero menu item Mode SWEEP Start gt Sweep UP DOWN gt FRQ_1 000250 0Hz gt FRQ_2 000250 0Hz x Start on zero off Start on zero menu item gt Sweep Time 000 5s gt No of loops 1000 v gt change Mode MANUAL Selection on off Confirmation of the selection Return to the menu item selection 11 VSE measurement Operation of the sweep time menu item Mode SWEEP Start gt Sweep UP DOWN gt FRQ_1 000250 0 Hz gt Start on zero off xSweep Time 010 5s gt No of loops 1000 gt change Mode MANUAL Sweep time menu item lt gt Changing the cursor position 4 Increase the selected number 1 v Decrease the selected number 1 2 4 Direct entering of the numbers o Enter Confirmation of the entered frequency value Enter Return to the menu item selection Operation of the no of loops menu item Mode SWEEP Start gt Sweep UP DOWN gt FRQ_1 000250 0 Hz gt FRQ_2 000250 0 Hz gt Start on zero off gt Sweep Time 010 5s xNo of loops 0100 gt change Mode MANUAL Number of loops menu item lt gt Changing the cursor position a Increase the selected number 1 v Decrease the selected number 1 g 4 Direct entering of the numbers 0 Confirmation of th
15. nonn EEREN EEEE eee 13 pulse generator TB2 testbox connections 22222ecseeeeeeeeeeeeseen seen 13 Technical data sur eo ee se ei 15 Safety instructions Dear customer dear user VSE measurement This description includes important instructions concerning the installation function and the operation This information is therefore an important part of the device A non observance can result in damage being caused or the safety of personnel and plant being impaired The device is only to be installed and commissioned by an electrical specialist If the device is to be used in processes by which a possible malfunction or incorrect operation can pose a risk to personnel and plant corresponding safety precautions are to be taken in order to avoid this The general standard for the construction of switch cabinets in the machine construction industry have validity for the installation This document is not managed by an updating service of VSE Volumentechnik GmbH Amendments can be made to this document without further notification errors excepted General technical data Output frequency adjustable between O and 250 kHz Resolution of 0 1 Hz Frequency accuracy of 100 ppm Simulation of flow metering with VSE flow meters series VS I Reversible direction of rotation phase position A B Adjustable frequency flow divisions during operation Large distribution voltage range 10 28 V DC Connection via a rou
16. ode of operation selection menu item Selection of the mode of operation Entering the selected mode of operation menu or return to the menu item selection A separate trigger outlet TRIGOUT is available for the triggering of oscil loscopes This trigger outlet changes to low level at the start of the sweep and remains in this status during the first frequency step The TRIGOUT status returns to high level after the first frequency step has been completed The sweep mode of operation has the following technical data e Sweep simulations of incremental frequency responses with and without changes of direction e Sweep modes of operation single sweep and continuous sweep opera tion due to adjustable loops e Sweep characteristic linear e A different incremental sweep modes with two cutoff frequencies can be programmed e The start and end frequencies can be adjusted infinitely 0 1 250 000 0 Hz within a range e Triggering of an oscilloscope or x y recorder possible due to an additional trigger outlet TRIGOUT e Sweep direction exchangeable via a mode change over e Sweep Start can be adjusted at zero or at start on zero e Sweep time can be infinitely variably adjusted between 0 1 s 20 0 s e A programmable number of loops can be adjusted between 1 and 1000 VSE measurement 2 Functions of the sweep mode of operation The following sweep functions of incremental signals are possible with the
17. peration of the VS I size menu item Mode VS I Stop xVS 1 0 02 gt IPF 10 90 Flow gt change Mode SWEEP VS I size menu item Selection of the size 0 02 0 04 0 1 0 2 0 4 1 2 4 10 ner Confirmation of the selected VS I size Enter Return to the menu item selection Operation of the interpolation factor IPF menu item Mode VS l Stop gt VS 1 0 02 xIPF 10 90 Flow gt change Mode SWEEP Interpolation factor IPF menu item A I Confirmation of the selected interpolation factor IPF nter Selection of the IPF 1 2 3 4 5 8 10 12 16 Return to the menu item selection VSE measurement Operation of the flow value entry menu item Mode VS I Stop gt VS I 0 02 gt IPF 10 90 Flow xQ 00001 25 min direction ajojn Flow value entry menu item lt gt Changing the cursor position Changing the direction of rotation ID in the entry a Increase the selected number 1 v Decrease the selected number 1 Selecting the flow unit 5 6 Direct entering of the numbers OO o ner Confirmation of the entered frequency value Enter Return to the menu item selection Operation of the mode of operation selection menu item ModeVS I Stop gt VS 10 02 gt IPF 10 90 Flow gt Q 00001 25 l min xchangeMode SWEEP A v em Confirmation of the selected mode of operation Enter e Th
18. s the direction of rotations of the most diverse frequency ranges into account Output A B with HTL level 1 28 V optional additional differential outputs A A B B with HTL level 10 28 V or RS422 level The following tasks can be fulfilled with the assistance of the incremental pulse encoder Qualifying the usage possibilities of a measuring system for the desired application Checking of the layout of an incremental measuring system Testing the functioning of machine components and control units or evaluation units during the development phase Checking of setting parameters of electronic evaluation units or con verters without installing the mechanical components e g flow sensors Checking of cabling between the sensory technology and the electronic measuring devices during commissioning Simulation of incremental sensor signals when servicing plants Simulation of the flow quantities of VSE flow meters VS I series Checking of incremental measurement data recordings and their dynamics Testing the frequency behavior of switchings Simple error analysis in case of plant disturbances VSE measurement Description The pulse generator TB2 testbox has three different types of operation or modes 1 manual mode setting of a frequency between 0 0 Hz and 250 000 0 Hz 2 VS I mode setting of a measured flow value stipulating the VS I constructional size the interpolation factor and the flow unit
19. tem Change between each of the menu items gt FRQ_2 000250 0Hz Frequency entry FRQ_2 menu item gt Start on zero off Start on zero menu item Entering the selected menu item only possible if sweep is disabled gt Sweep Time 000 5s Time entry menu item Enable Disable the sweep output gt No of loops 1000 Number of loops menu item Activiation only possible outside of the start stop menu items possible gt change Mode MANUAL Mode of operation selection menu item 10 VSE measurement Operation of the sweep mode menu item Mode SWEEP Start xSweep UP DOWN Sweep functions selection menu item gt FRQ_1 000250 0 Hz gt FRQ_ 2 000250 0Hz Selecting the sweep mode UP DOWN UP DOWN DOWN UP gt Start on zero off v gt SweepTime 000 5s r aaa gt No of loops 1000 gt change Mode MANUAL UP FRQ_1 gt gt FRQ_2 UP DOWN FRQ_1 gt gt FRQ_2 gt gt FRQ_1 DOWN FRQ_2 gt gt FRQ_1 DOWN UP FRQ_2 gt gt FRQ_1 gt gt FRQ_2 Operation of the frequency entry FRQ_1 FRQ_2 menu item Frequency entry menu item FRQ_1 Mode SWEEP Sta rt Frequency entry menu item FRQ_2 gt Sweep UP DOWN nn Changing the cursor position xFRQ_1 000250 0 Hz e BR anging the direction of rotation xFRQ_2 000250 0 Hz 1 Sine direction gt Start on zero off Increase the selected number 1 gt Sweep T ime 000 5 S Decrease the selected number 1 gt No of loops 1000 Ae 6 Direct enteri
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