S D 1 Operating Instructions
Contents
1. SD1 K with relay contact Connections are different in every serial model modification Option with analog output 0 20mA 4 20 mA Connection of analog output has to be made on clamps Analog Output green GND white In accordance with the software the settings 0 20 mA and 4 20 mA are IEY available for signal selection The selection is carried out by programming the SD1 under menu reference 8 at the Analogue output position The functions are set using 0 or 1 see 4 1 Overview of the input values How does the analogue output function The function of the analogue output can be freely selected i e it can be assigned to the measurement parameters of flow rate or volume D A maximum value can be programmed for the analogue output The maximum value corresponds to an output of 20 mA For adjusting volume flow measurement please see chapter 3 5 and 3 6 The details of programming the maximum value are given in section 4 6 5 What must be programmed when connecting the analogue output Page 6 BSD1 xxxP 09 99 GB 3 4 Connecting the SD1 with relay contacts The SD1 is available in 3 models SD1 R with two rectangular signals with a pulse offset of 90 D1 l with analog output 0 20 mA 4 20 mA SD1 K with relay contact Connections are different in every serial model modification Option with relay contact The SD1 has two relay contacts The relay contacts are connect2. 4 3 How to change time on flow display You can choose between second minute and hour to change time on flow display by adjusting menu 07 Setting the time base Time base Input value Menu reference 07 Minutes XX00 Minutes XX10 Seconds XX01 Hours XX11 The X characters in the Input value Menu reference 07 column are of no significance in setting the time base Page 14 BSD1 xxxP 09 99 GB 4 4 How to find out the flow rate The SD1 commands two measuring systems to determine the flow B duration of period or measurement of pulse width and B gate time You can choose between gate time measurement or duration of period measurement under menu 07 Duration of period With the measurement of the period duration the time between two pulses is measured and is processed with the pulse volume to the flow D The measurement of period duration enables very fast measuring If the flow values fluctuate greatly the digital damping filter makes a smoothing and thereby a calming of the flow indicating unit possible A digital filter can be activated under the menu reference 02 The higher the input value the greater the filter effect Input signals smaller than 1 Hz are not processed Programmed value 0000 no filter effect Programmed value 9999 maximum filter effect Gate time measurement With the gating time measurement the pulses within a programmed gating time are counted and processed with the
3. 09 99 GB 6 Type code Example SD1 R 24 i gt Identification for programs V volume measurement only with version SD1 l or SD1 K volume measurement with SD1 R on request 24 VDC Power supply 12 12 VDC Power supply 24 H Square wave signals incremental signal Current output 0 20 mA 4 20 mA K Relay outputs BSD1 xxxP 06 99 GB Page 19 7 Connections The electrical connections are made by a plug connection DIN 43650 GN Case 2 7 3 a GC T 3 QI G0 3 a Ce ae 3 QI COS Page 20 Connections Version SD1 R 24 PIN 1 UB PIN 2 GND PIN 3 Channel 1 PIN QD Channel 2 Connections Version SD1 I 24 PIN 1 UB PIN 2 GND PIN 3 Analogue output 0 4 20 mA PIN QD Enable summation Connections Version SD1 I 24 V PIN 1 UB PIN 2 GND PIN 3 Analogue output 0 4 20 mA PIN QD Enable summation Connections Version SD1 K 24 PIN 1 UB PIN 2 GND PIN 3 Relay 1 PIN QD Relay 2 Connections Version SD1 K 24 V PIN 1 UB PIN 2 GND PIN 3 Relay 1 PIN Enable summation BSD1 xxxP 09 99 GB
4. pulse volume to the flow Gate time can be adjusted under menu 02 Adjustable minimum gate time is O 1 second BSD1 xxxP 06 99 GB Page 15 4 5 What must be programmed when connecting the relay outputs Relay function can be adjusted only if the instrument was ordered with option relay contacts SD1 K The relays can be allocated to flow rate or volume measurement Flow rate measurement A 0 is inserted under the menu reference 07 This takes place at the position designated Display see 4 1 Overview of the input values Volumetric measurement A 1 is inserted under the menu reference 07 This takes place at the position designated Display see 4 1 Overview of the input values Switch functions For Relay 1 programming takes place under the menu references 03 and 04 for Relay 2 under the menu references 05 and 06 see 4 1 Overview of the input values The following switch functions can be obtained Normally open function On reaching the switch on value the contact is closed Example Switch on value pull in 2 500 Switch off value drop out 9999 The relay contact is switched when the switch on value is exceeded The switch off value of 9999 has the consequence that only the switch on value is evaluated The relay is not disconnected when the switch off value is reached Normally closed function On reaching the switch off value the contact is opened Example Switch o
5. the voltage at the enable input is changed from 0 V to 24 V the summation is reset to zero The determination of the volume starts again BSD1 xxxP 06 99 GB Page 9 3 7 Error display On two channel volume counters it is possible to monitor the correct pulse sequence on the channels Faulty pulses are not counted and thus do not change the volume measurement If an error is established by the SD1 the character sequence FAUL appears in the display The error display can also be completely isolated This is carried out IEY under the menu reference 08 at the counter input position The error display is enabled with a 0 and blocked with a 1 see 4 1 Overview of the input values Page 10 BSD1 xxxP 09 99 GB 4 SD1 programming Each time the SD1 is to be operated it is necessary to adapt the unit to the volume counter that is connected Input procedure The input procedure is the same for all input values and is therefore described once only Programming is carried out by means of two keys which are accessible on removing the front cover The positions of these two keys is shown below EIL IET LT GOOO o o T1 T2 Start input operation T1 and T2 are depressed for approx four seconds to start the input operation The first two segments are switched dark segments three and four display the menu reference number 00 Release T1 and T2 Change menu reference By brief
6. SD 1 Operating Instructions KRACHT Volutronic 9 1 SAFETY 2 DESCRIPTION 3 CONNECTING THE SD1 3 1 Connecting the voltage supply 3 2 Connecting SD1 with rectangular output 3 3 Connecting the SD1 with analog output 3 4 Connecting the SD1 with relay contacts 3 5 How is the flow rate measurement activated 3 6 How is the volume measurement activated 3 7 Error display 4 SD1 PROGRAMMING 4 1 Overview of the input values 4 2 What must be programmed when connecting a volume counter 4 3 How to change time on flow display 4 4 How to find out the flow rate 4 5 What must be programmed when connecting the relay outputs 4 6 What must be programmed when connecting the analogue output 5 TECHNICAL DATA 6 TYPE CODE 7 CONNECTIONS Page 2 10 11 12 13 15 16 17 18 19 20 21 BSD1 xxxP 09 99 GB 1 Safety The safety notes included in these operating instructions are indicated by A this attention getter symbol If the text accompanying this symbol is not heeded danger to personnel or equipment may result IEY Other instructions which are not safety warnings but which give advice on optimum operation are indicated by a hand General safety instructions The electronic SD1 is constructed to the latest standards in technology The SD1 should be operated only W in technically sound condition B as instructed B with awareness of the safety precautions following t
7. acc to DIN 43650 3 1 Connecting the voltage supply The SD1 is operated with an voltage of 24 VDC or 12 VDC The adjustment is achieved by means of solder jumpers The connections are made as follows 24 VDC brown GND white 3 2 Connecting SD1 with rectangular output The SD 1 is available in three versions SD1 R with two rectangular signals with a pulse offset of 90 SD1 I with analog output 0 20 mA 4 20 mA SD1 K with relay contact Connections are different in each version Option with rectangular output Connection of rectangular output has to be made on clamps Channel 1 green Channel2 yellow If the SD1 works with a volume counter which has 2 sensors it is a 2 channel version The square wave pulses are displaced from one another by 90 It is therefore possible to detect the direction This is referred to as a two channel layout If the SD 1 works with a volume counter which has only 1 sensor it is a 1 channel version Connection on clamp ea channel 2 is not necessary Single channel or two channel connection must be set on the SD1 The IEY settings required are made under menu reference 08 at the counter input position see 4 1 overview of the input values BSD1 xxxP 06 99 GB Page 5 3 3 Connecting the SD1 with analog output The SD1 is available in 3 versions SD1 R with two rectangular signals with a pulse offset of 90 SD1 with analog output 0 20 mA 4 20 mA
8. ed to the supply potential That means the contacts switch the supply voltage to external processing Connection has to be made on clamps A The relays are provided with normally open contacts The switching voltage is 30 V maximum switching current is 1A Connection of relay contact has to be made on clamps Relay 2 yellow How do the relays operate The function of the relays can be set as required i e each relay can be allocated to the flow rate or volume measurement parameters An on and an off switching value can be programmed for each relay The relay switches when the switch on value is exceeded When the switch off value is undershot the relay drops out again The relays can be programmed as normally open or normally closed The programming of the switch on and switch off values is given in IE section 4 5 What must be programmed when connecting the relay outputs Wird das SD1 in der Betriebsart Volumenmessung betrieben entf llt das Relais 2 For adjusting volume and flow measurement please see chapter 3 5 and IB 36 BSD1 xxxP 06 99 GB Page 7 3 5 How is the flow rate measurement activated The SD1 can be switched to flow measurement or volume measurement IEY This will be made by programming SD1 under menu 7 at step display The flow rate will be adjusted by 0 and the volume by 1 see 4 1 for overview of input values As soon as a medium flows through the volume counter a
9. f 10 V or 20 mA Example Maximum analogue output value 3 500 Litres minute The flow rate is 3 500 Litres minute so 20 mA are output If the flow rate is 0 000 Litres minute then O mA is output BSD1 xxxP 06 99 GB Page 17 5 Technical Data PIC 17C42 Power pack Supply 18 VDC 28 VDC optional 10 19 VDC Maximum input current ca 120 mA General data Display Principle 7 Segment LED 7 62 mm red Display 0 000 9999 with floating point overrun gt 9999 display 9999 Control keys Two keys behind the front cover Housing material Aluminium Dimension Height without plug approx 35mm width approx 60mm depth approx 60 mm Protection class DIN 40050 IP 65 Weight ca 0 12 Kg Connections Angled connector DIN 43650 4 pins polarized Analogue outputs Option Current output 0 20 mA 4 20 mA load lt 250 Ohm 18 28 VDC power supply load lt 50 Ohm bei 10 VDC power supply Resolution 10 bit short circuit proof Pulse output Incremental signal Pulse amplitude Approx 0 8 x supply voltage load dependent Pulse shape with symm Output Square wave pulse duty factor channel 1 1 15 signal Pulse offset between two 90 30 channels Output power channel max 0 3 W short circuit proof Relay contacts each 1 N O 24 Volt 1 A typ operating time 6 ms Ambient conditions Operating temperature 0 C to 4 60 C Storage temperature 25 C to 85 C Page 18 BSD1 xxxP
10. flow rate indication appears No special action is required The instantaneous flow rate is indicated as a rule in litres per minute The SD1 must be adjusted to the actual volume counter that is connected IEY The procedure is given in section 4 2 What must be programmed when connecting a volume counter Page 8 BSD1 xxxP 09 99 GB 3 6 How is the volume measurement activated The SD1 can be switched to flow measurement or volume measurement IEY This will be made by programming SD1 under menu 7 at step display The flow rate will be adjusted by 0 and the volume by 1 see 4 1 for overview of input values By volumetric measurement is implied the summation of the amount of a medium which has flowed through a volume counter As a rule the indication is in litres When the limiting frequency has been passed and a release signal has IEY been given a summation will be made To programm limiting frequency under menu 10 you have to take the volume counter s impulse frequency in hertz Hz Usually the limiting frequency has to be set to 0 000 Connection of release signal output has to be made on clamps summation enable yellow If there is a voltage of 24 V at the enable input summation of the volume IEY commences The measured values on the display change If there is a voltage of 0 V at the enable input summation of the volume is stopped The measured values on the display do not change When
11. hese operating instructions The SD1 must only be operated as an item of equipment installed in an internal area The SD1 must only be operated in the prescribed condition The stated limiting values see also section on Technical Data must under no circumstances be exceeded Personnel engaged in the installation operation and maintenance of the SD1 must be appropriately qualified This qualification can be obtained by appropriate training or instruction Such personnel must be familiar with the contents of these operating instructions During all operations the relevant national regulations relating to safety precautions in the work place and where applicable internal regulations of the operator must be observed even if these are not detailed in these operating instructions The SD1 must not be operated in hazardous areas nor in areas where medical apparatus is in use nor in areas which are expressly named in VDE 0411 Part 100 If the SD1 is used for the control of machines or sequential processes where damage to the machine or accident to operating personnel is possible as a consequence of failure or faulty operation of the SD1 then appropriate safety precautions must be implemented In the case of variations including those relating to operating behaviour which prejudice safety the SD1 must be switched off immediately a PPP During installation work on the SD1 the power supply must always be disconnected Installati
12. ly pressing T1 the menu reference numbers 00 to 10 can be displayed in sequence An input value is concealed behind each menu reference number To display the input value press T2 briefly A four digit input value appears Change input value The point marks the digit which can be changed by actuating T2 The point can be moved by actuating T1 After setting the numerical values the point must be placed at the correct position On actuating T1 and T2 the display reverts to the menu reference level The menu reference 00 is displayed again Stop input value To exit the input operation depress T1 and T2 again for approx four seconds BSD1 xxxP 06 99 GB Page 11 4 1 Overview of the input values The values which are required to be set can be inserted in the column labelled Input value User Reference User setting m im Damping Digital filter or gate time 1 in seconds 99 Pull in value Relay 1 Drop out value Relay 1 Pull in value Relay 2 Drop out value Relay 2 pL p po pom po po Time base 0 Minute 1 Alternative time base Alternativ time base 0 Second 1 Hour Display 0 Flow rate 1 Volume Measurement 0 Gate time 1 Period measurement gu co CO CcO OJo L aalo a oOo R A ojojo co co 99 co co co co e e e e e e T ___ Counter input 0 2 channel 1 1 channel Displa
13. n value 0 000 Switch off value 3 000 The relay contact is switched so long as the switch off value is not reached The switch on value of 0 000 has the consequence that only the switch off value is evaluated The relay is not switched off if the switch on value is reached Window function Example Switch on value 2 500 Switch off value 3 000 Hystresis switch The relay contact is switched when the switch on value is reached If the switch off value is exceeded the relay opens again Example Switch on value 4 000 Switch off value 3 000 Page 16 BSD1 xxxP 09 99 GB 4 6 What must be programmed when connecting the analogue output The analog output can be used only if the instrument was ordered with analog output SD1 I The analogue output can be assigned to flow rate or volume measurement Flow rate measurement A 0 is inserted under the menu reference 07 This takes place at the position designated Display see 4 1 Overview of the input values Volumetric measurement A 1 is inserted under the menu reference 07 This takes place at the position designated Display see 4 1 Overview of the input values Signal selection Menu reference 08 Analogue output The digits identified with an X in the Menu reference 08 column are of no significance to the setting procedure The maximum value is entered under the menu reference 01 maximum analogue output corresponding to an output o
14. on work must only be carried out by appropriately qualified personnel BSD1 xxxP 06 99 GB Page 3 2 Description The plug in display unit SD 1 may be used with any KRACHT volume counter which uses a plug in connection according to DIN 43650 The display unit is simply inserted between the plug and the plug socket on the volume counter The displayed value will be the actual flow rate The square wave signals remains available for external processing Volume counters already supplied can be equipped with the plug in display unit To achieve this the amplifier card must be removed from the plug socket The plug in display unit is freely programmable All necessary settings can be achieved with two keys The programmed data is stored on an EEPROM and therefore saved in case of power failure As an option the plug in display is available with an analogue output 0 20 mA 4 20 mA proportional to flow rate The square wave signal is then not applicable The plug in display unit works with 24 VDC or 12 VAC Due to it s characteristics possibilities and low costs this instrument will be your first choice especially for measuring of flow and volume Manufacturers address KRACHT GmbH GewerbestraBe 20 58791 Werdohl Tel 02392 935 0 Fax 02392 935209 Page 4 BSD1 xxxP 09 99 GB 3 Connecting the SD1 This section deals with the layout of the connections on the SD1 The electrical connection has to be made by a plug in connection
15. y 0 Normal 1 180 Rotation Analog Relay 0 Analogue output 1 Relays Analogue output 0 0 20mA 1 4 20 mA Limiting frequency If the on and off values for the relays are set at 9999 then the relays are isolated oA Ojo Ojo Ojo Page 12 BSD1 xxxP 09 99 GB 4 2 What must be programmed when connecting a volume counter The SD1 is set up for the connected volume counter This is carried out under menu reference 00 pulse volume counter menu reference 09 density and under menu reference 08 at the position counter input The pulse volumes for KRACHT Volume counters can be obtained from the Table The X characters in the Input value Menu reference 08 column are of no significance in setting the volume counter Designation Material Input value Input value Menu reference 00 Menu reference 08 Sp Gr Iron Spheroidal graphite iron High grd St High grade steel Example A VCO 04 volume counter is connected The pulse volume is 0 040 cm The VC 0 04 Volume counter has a 2 channel layout B The value 0 040 is entered under menu reference 00 W A 0 is entered under menu reference 08 at the position designated counter input Additionally a density factor can be adjusted to indicate the mass Density of medium will be adjusted under menu 09 density factor For volumetric measurement density factor has to be adjusted to 1 000 BSD1 xxxP 06 99 GB Page 13
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