Operating Instructions
Contents
1. 4 4 4 4 4 T 3 4 T T 5 5 9 10 8 o vA 2 Qu c0 8 3 v7 6 WOT Oo 6 5 6 7 B 5 6 7 8 OOOO0O0Q0 7 200000 7 9 10 1T 1 13 14 9 10 TT 1 T3 14 View laterally on top oa 1 Potentiometer for switching point adjustment 2 Status indication of the outputs 3 LED supply voltage 4 Separating wal 5 Terminals inputs 6 Terminals transistor output 7 Terminals supply voltage and relay outpu 12 8 LED fault signal 9 Potentiometer for max switching point 10 Potentiometer for min switching point 13 11 Barcode serial number 12 DIL switch block 18 Screws 14 Ventilation opening 15 Transparent cover ame 4 LL L ae S 8 LL TTT LL TTT EE gd d dj 15 VEGATOR 620 622 13 VEGA Setup Potentiometer The potentiometers 1 9 and 10 allow Switch on off Switch continuous adjustment of the switching delay za 28 2 6 12 points 02s off off off off off Signal lamps 03s on on 0 off off Green 3 2s on on on off off supply voltage available 6s on on o on off ready for operation 8s on on on on off Yellow 2 o 12s on on o of on status indication of the relay and transistor 14s on on on off on outputs LED lights relay energised transistor 18s On JON PL p ON on conductive LED extinguished relay 20s on on on jon jon deenergised transistor blocked Red 8 failure indication DIL switch block 12 When VEGATOR is installed2. 1 1 Function and configuration VEGATOR 620 622 signal conditioning instruments are module units with plug in Socket suitable for carrier rail mounting DIN 46 277 In conjunction with sensors they are used for level detection and switching com mand output which is triggered by relay and transistor switches Typical applications are double point con trols e g pump controls on off and monitor ing functions such as overfill or dry run protection The instruments are equipped with adjust able integration time The integrated fault monitoring not with VEGATOR 620 detects short circuit or interruption of the measuring circuit In case of failure a failure LED lights up The level relay and the transistor output deenergise To construct a measuring system you need a VEGATOR level switch and a sensor with analogue measured data transmission i e capacitive meas probes hydrostatic pressure transmitters or process pressure transmitters a VEGATOR 1 2 Approvals If measuring systems are installed according to the following approvals the appropriate official documents have to be noted and the regulations observed The documents are supplied with the respective measuring sys tem WHG approval VEGATOR 621 and 622 signal conditioning instruments with capacitive meas probes or pressure t
3. the terminal Socket covers the DIL switch block Adjust ments are only possible when the instrument is dismounted VEGATOR 620 VEGATOR 621 622 ja 12 T 12 0 EO 6 t sec tsec6 LN off MJ 2 2 CM off eee ze NH O za za M Blom A A e B The individual switches are assigned as follows Switch A B mode switch A max detection overfill protection B min detection dry run protection Switch ze and za ze switch on delay za switch off delay Switch 2 6 12 With these you can adjust the delay time The time intervals of the activated time switches sum up When the on delay off delay switches are switched on together the set time is valid for both delay modes see the following table 4 2 Setup sequence The following list explains briefly the essential setup steps mount the terminal socket wire the terminal socket according to your control requirements cover the input terminals with the separat ing wall 4 set the requested mode A B on the DIL switch block 12 deactivate the on delay off delay modes switches ze za 2 6 12 to position off on the DIL switch block 12 mount the instrument module onto the ter minal socket switch on the power supply the green LED 3 lights adjust the switching points acc to 4 3 Switching point adjustment if an integration time on delay off delay should be nec
4. mode A extinguishes in mode B Note the dial position of the potentiometers 1 Continue filling the vessel until the measur ing probe is completely covered With measuring probes for adhesive products the sensitive tip must be covered com pletely standard 100 mm above the elec trode The status indication 2 changes due to the additional filling VEGATOR 620 622 15 VEGA Setup Turn the potentiometer 1 very slowly clockwise until the status indication 2 changes i e lights in mode A extinguishes in mode B Note the position of the potenti ometer Determine the average value and adjust it on the potentiometer 1 The signal conditioning instrument is now ready for operation Please close with the transparent cover 15 The relay and transistor output as well as the status indication behave in mode A and B as previously shown in Adjustment example 1 see top left Adjustment example 3 two VEGATOR 620 as dual single point control see 3 3 Connection plans extension example vertically mounted capacitive measuring probes Level 2 7 777 2nd VEGATOR Level 1 7777 4st VEGATOR Level Pressure Procedure e Set the potentiometers 1 of the two signal conditioning instruments to 10 e Fill the vessel up to level 1 Turn the potentiometer 1 of the first VE GATOR very slowly anticlockwise until the status indicatio
5. A 54 W Number Switching voltage U Switching current Voltage loss Ugg Blocking current Electrical connection 1 output synchronously switching with the relay outputs max 36 V DC max 60 mA DC short circuit proof transistor limits the current in case of short circuit to a stand by current of approx 5 mA 1 5 V atl 60 mA lt 10 pA Screw terminal Electrical protective measures max 1 5 mm Protection instrument socket Protection class Overvoltage category Mechanical data IP 30 IP 20 Mounting Dimensions Weight carrier rail mounting acc to DIN 46 277 p 3 W 36 mm H 118 5 mm D 134 mm approx 170 g VEGATOR 620 622 Product description VEGA Ambient conditions Permissible ambient temperature Storage and transport temperature Option Indicating elements 20 C 60 C VEGATOR 620 With an operating voltage of 60 V DC 72 V DC the permissible ambient temperature declines linearly from 60 C to 40 C 40 C 70 C specially protected tropicalised electronics LED in front plate Functions green on operating voltage on yellow switching point control red fault signal Mode selectable Integration time adjustable Adjustment elements overfill protection A dry run protection B 0 2 20 sec Front plate On top cover to the side Electrical separation measures one or two potenti
6. Now turn the potentiometer 9 to 10 Continue filling the vessel to max level the status indication 2 remains unchanged Turn the max potentiometer 9 very slowly anticlockwise until the status indication 2 changes i e extinguishes in mode A lights in mode B The signal conditioning instrument is now ready for operation Please close with the transparent cover 15 Note VEGATOR 622 can also be used for single point control The max potentiometer must be set to 0 the min potentiometer then acts as single point adjustment 5 Diagnostics 5 1 Maintenance The instrument is maintenance free 5 2 Repair Repairs require accessing internal parts of the instrument to correct an instrument de fect For safety and warranty reasons repair must only be carried out by qualified VEGA personnel In case of a defect please return respective instrument with a short description of the flaw to our repair department Failures are short term malfunctions caused by wrong adjustment or defects in the sensor or in the connection cables Failures their possible causes and their rectification are listed under 5 3 Failure recti fication VEGATOR 620 622 17 VEGA Diagnostics 5 3 Failure rectification Failure Rectification Measure Instrument is dead Green operating lamp extinguishes VEGATOR 620 functions incorrectly or not at all Red failure LED of VEGATOR 621 or 622 ligh
7. VEBA Level and Pressure Operating Instructions VEGATOR 620 621 622 VEGA Contents Contents Safety information Note Ex area Product description 1 1 Function and configuration 1 2 Approvals 1 8 Types and versions 1 4 Technical data and dimensions Mounting and installation instructions Electrical connection 3 1 Connection instructions 3 2 Connection instructions for Ex approved applications 3 3 Connection diagrams Setup 4 1 Indicating and adjustment elements 4 2 Setup sequence 4 3 Switching point adjustment Diagnostics 5 1 Maintenance 5 2 Repair 5 8 Failure rectification Safety information Please read this manual carefully and also take note of country specific installation standards e g the VDE regulations in Germany as well as all prevailing safety regulations and acci dent prevention rules For safety and warranty reasons any internal work on the instruments apart from that in volved in normal installation and electrical con nection must be carried out only by qualified VEGA personnel x Note Ex area Please note the attached safety instructions containing important information on installation and operation in Ex areas These safety instructions are part of the operating instructions and come with the Ex approved instruments VEGATOR 620 622 Product description 1 Product description
8. amp extinguish reconnect the signal conditioning instrument Separate the sensor from the connection cable and con nect a resistor of 2 2 kOhm in its place Should the failure lamp continue to light there is probably an inter ruption of the connection line Check the connection cable to the sensor f the failure lamp extinguishes the sensor is defective Check the connected sensor 18 VEGATOR 620 622 Diagnostics Failure Rectification Measure VEGATOR 620 functions incorrectly or not at all Red failure LED of VEGATOR 621 or 622 lights b Current value gt 22 mA Check all connections and the connection cable to the sensor Should the red failure lamp continue to light separate the sensor from the connection cable and connect a resistor of 2 2 kOhm in its place If the failure lamp extinguishes the sensor is defective Check the connected sensor Should the failure lamp continue to light reconnect the sensor Sepa rate the signal conditioning instrument from the connection cable and connect a resistor of 2 2 kOhm to its sensor input Should the failure lamp continue to light the signal conditioning instru ment is defective In such a case return the instrument for repair to VEGA f the failure lamp extinguishes there is probably a short circuit in the connection line Check the connection cable to the sensor Note A flawlessly operating VEGATOR has the following switching po
9. cy power supply with curve form extremely deviating from sine max 125 V AC rectangle max 3 W 3 18 VA T 1A 250 V Number Input type Range Sensor Sensor supply voltage VEGATOR 620 VEGATOR 621 622 Switching threshold Min hysteresis VEGATOR 620 621 VEGATOR 622 Current limitation Temperature error Connection cable Resistance per wire VEGATOR 620 VEGATOR 621 622 1 current input active two wire input analogue 4 20mA capacitive probes hydrostatic pressure transmitters process pressure transmitters 24V DC 15 18 V DC 4 20 mA adjustable 80 uA 80 16000 HA at 24 mA permanently shortcircuit proof 0 05 96 10 K of range 2 wire standard cable max 250 Ohm max 35 Ohm VEGATOR 620 622 VEGA Product description Additional measurement data input on VEGATOR 620 Number Input type Range Inner resistance Application Hysteresis Temperature error Relay output 1 additional current input passive two wire input analogue 4 20 mA 22 Ohm switching in series with active inputs of e g VEGATOR 620 VEGAMET 601 80 HA 0 05 10 K of range Number Contact Contact material Switching voltage Switching current Breaking capacity Transistor output not on VEGATOR 620 1 output 1 spat 12 13 open 12 14 close AgCdO and Au plated min 10 mV DC max 250 V AC 250 V DC min 10 uA DC max 3 AC 1A DC max 750 V
10. es the shielding must be grounded only on one sensor or signal conditioning instru ment side if there is the danger of overvoltage the use of VEGA overvoltage arresters is recommended the connection should be made according to country specific installation standards e g in Germany acc to the VDE regulations 3 2 Connection instructions for Ex Ex approved applications For the following applications certified instru ments are required in hazardous areas if necessary observe the special national regulations as part of an overfill protection system acc to WHG in the shipbuilding industry for pressurized vessels For these applications the respective official documents test reports test certificates general type approval and conformity certifi cates as well as the applicable mounting and operating instructions should be ob served The official documents are supplied with the respective instrument In Ex applications the voltage supply of the sensor must be delivered only through an intrinsically safe circuit This can be done by means of VEGATOR series 600 signal conditioning instrument in Ex version not certified VEGATOR series 600 signal conditioning instrument with VEGA safety barrier type 145 Please also note the official documents of these additional instruments 10 VEGATOR 620 622 Electrical connection 3 3 Connection diagrams Sensor Current input
11. essary the instrument must be removed again to set the time on the DIL switch block 12 14 VEGATOR 620 622 Setup VEGA 4 3 Switching point adjustment Adjustment example 1 mode A overfill protection VEGATOR 620 621 single point control sensors vertically mounted measuring probes hydrostatic pressure transmitters or process pressure transmitters Capacitive meas probes Process pressure transmitters i7 Hydrostatic pressure transmitters Level Pressure Switching 4 point Lf f 1 Transistor X conductive Mode A blocked sot conductive Mode B o blocked Procedure Set the potentiometer 1 to 10 Fill the vessel up to the requested level or pressure Turn the potentiometer 1 very slowly anticlockwise until the status indication 2 changes i e the status indication extin guishes The signal conditioning instrument is now ready for operation Please close with the transparent cover 15 Adjustment example 2 mode B dry run protection VEGATOR 620 621 single point control sensors horizontally mounted capacitive meas probes or capacitive meas probes for adhesive products Capacitive meas probes Procedure Set the potentiometer 1 to O Fill the vessel up to 100 mm below the electrode L 100 mm Turn the potentiometer 1 very slowly clockwise until the status indication 2 changes i e lights in
12. gration time Input 1 capacitive probe or 1 hydrostatic pressure transmitter or 1 process pressure transmitter Outputs 1 relay spat 1 transistor Approval EEx ia IIC as part of an overfill protection acc to WHG Application level detection overfill protection dry run protection Level Timet VEGATOR 620 single point level switch Timet Double single point control with two VEGATOR 620 gt _ gt Timet Pelee Ex area Non Ex area VEGATOR 621 single point level switch VEGATOR 620 622 Product description VEGA VEGATOR 622 Level Double point level switch with fault monitoring adjustable switching hysteresis se lectable mode A B A overfill protection B dry run pro tection and with adjustable integration time Input 1 capacitive electrode 1 hydrostatic pressure transmitter 1 process pressure transmitter Timet Outputs 1 relay spdt Ex area Non Ex area 1 transistor Approvals EEx ia IIC as part of an overfill protection acc to WHG VEGATOR 622 double point level switch Application Min max control overfill protection dry run protection 1 4 Technical data and dimensions General data Power supply Operating voltage Power consumption Fuse supply range Measurement data input general 20 72 V DC 20 250 V AC 50 60 Hz sine in case of emergen
13. int values Potentiometer position 0 5 10 Sensor current approx 4 mA approx 12 5 mA approx 21 mA VEGATOR 620 622 19 VEGA VEGA Grieshaber KG Am Hohenstein 113 77761 Schiltach Germany Phone 49 0 7836 50 0 Fax 49 0 7836 50 201 E Mail info de vega com WWW Vega com Q CE The statements on types application use and operating con ditions of the sensors and processing systems correspond to the latest information at the time of printing Technical data subject to alterations 2 19 950 July 2001
14. ioning instrument with appropri ate gaps mechanical coding An instrument coding with coded pins in different positions ensures that the various signal conditioning instruments cannot get mixed up Ex instruments An Ex coding with fixed coded pin ensures that non Ex and Ex instru ments cannot get mixed up The coding is part of the explosion protec tion On VEGATOR Ex the supplied coded pins instrument coded pin and Ex coded pin must be inserted by the user according to the table below Instrument Ex coding coding VEGATOR 620 2 VEGATOR 621 2 VEGATOR 622 2 VEGATOR 621 Ex 2 A VEGATOR 622 Ex 2 A Separating wall___f must be always plugged on Ex instruments OOo OO Ex coding I A ofc Bol VEGA Colas 1 Instrument coding 20 VEGATOR 620 622 30 9 z 0 10V o PE S E 70 80 TT Lu S OI o LN Plug rm a Bim oem Qo o 5 6 T 8 VEGATOR 620 622 VEGA 3 Electrical connection Electrical connection 3 1 Connection instructions The following connection plans are valid for standard as well as for Ex versions of the signal conditioning instruments Please ob serve the following instructions the relay contacts are shown in their con dition in the absence of current if strong electromagnetic interferences are expected we recommend the use of shielded cable for the signal cabl
15. n 2 changes i e lights in mode B extinguishes in mode A Now fill the vessel up to level 2 Now turn the potentiometer 1 of the sec ond VEGATOR very slowly anticlockwise until the status indication 2 changes i e lights in mode B extinguishes in mode A The two signal conditioning instruments are now ready for operation Please close each with the transparent cover 15 Adjustment example 4 VEGATOR 622 double point control sensors vertically mounted capacitive meas probes or hydrostatic pressure transmitters Max level Min level Switching Level 2 E RICE AED EE Max level points Level 1 Switching 1 points s a A a Min level Rel Transistor T i Bd ansis 2nd VEGATOR Sie Ew conductive ETS UMSO Mode A i MN 1 L x FN conductive C1 1 blocked Mode A j Id H T leu l l o IF 1 blocked id bd 1 121314 e L x y ducti i l Mode B U a HS SERES 1 T X I conductive o ode i uc SI o 1 blocked 1stVEGATOR 121314 u se PN conductive Mode A V 5 T o blocked 121314 1 1 28 W conductive Mode B Ps o blocked 121914 16 VEGATOR 620 622 Setup Diagnostics Procedure Set both potentiometers 9 and 10 to O Fill the vessel to min level Turn the min potentiometer 10 very slowly clockwise until the status indication 2 changes i e lights in mode A extin guishes in mode B
16. n intrinsically safe circuits must not exceed 250 V Carrier rail mounting 35 x 7 5 or 35x 15 acc to EN Transparent cover A a 54 5 l 134 50022 118 5 VEGATOR 620 622 Mounting and installation instructions 2 Mounting and installation instructions Mounting Each series 600 signal conditioning instru ment consists of a terminal socket for carrier rail mounting DIN 46 277 and a module unit The supply voltage can be connected to the terminals 9 and 10 of the terminal socket If there are adjoining series 600 instruments it is possible to continue the connection L1 and N via the supplied jumpers Note The jumpers must never be used on single instruments or at the respective end of a row of instruments as there is the danger of coming into contact with the supply voltage or of causing a short circuit The signal conditioning instrument must al ways be mounted outside hazardous areas or special Ex protective measures must be taken Transparent cover To protect the instrument against unauthor ised or inadvertent use the front plate of VEGATOR can be provided after setup with a lockable transparent cover To remove transparent cover see drawing below Coding To avoid inadvertent swapping of the differ ent signal conditioning instruments the termi nal socket is provided with pins and the signal condit
17. ometers with scale O 10 for switching point adjustment DIL for adjustment of mode A B A overfill protection B dry run protection integration time switch on off delay Reliable separation acc to VDE 0106 part 1 between reference voltage insulation resistance test voltage CE conformity power supply measurement data input level relay and transistor output 250 V 2 3 kV 2 3 kV VEGATOR 620 622 signal conditioning instruments meet the protective regulations of EMC 89 336 EWG and NSR 73 23 EWG The conformity has been judged acc to the following standards EMC Emission Susceptibility NSR EN 50 081 1 1992 EN 50 082 2 1995 EN 61 010 1 1993 VEGATOR 620 622 VEGA Product description Ex technical data Measurement data input intrinsically safe signal circuit Classification Max values voltage current wattage Characteristics Effective internal inductance L Effective internal capacitance C EEx ia IIC U 20 V ly 125 mA P 624 mW inear negligible negligible EEx ia IIC EEx ib IIC Max permissible external inductance Lg 05 mH mH 15mH 2mH Max permissible external capacitance C 97nF 78nF 68nF 200nF The intrinsically safe circuits are reliably separated from the non intrinsically safe circuits up to a peak value of 375 V In case of failure the max voltage on the no
18. passive VEGATOR 620 Sensor VEGATOR 621 Sensor VEGATOR 622 Transistor output Relay output 9 10 i E 7 9 10 1112 l b 7 9 10 1112 D Supply voltage E EN ZO is turni tut ri ri Yak A iu CE Us E10 lc d ZKA d CE 4 E14 bhan l Less VEGATOR 621 PLC VEGATOR 622 VEGATOR 620 622 11 VEGA Electrical connection Extension example for VEGATOR 620 Instrument 1 VEGATOR 620 622 switched to active mode Instrument 2 through max 10 VEGATOR 620 switched to passive mode Sensor VEGATOR 620 passive VEGATOR 620 622 active VEGATOR 620 passive Instrument 1 Instrument 2 through max instrument 10 As the above extension example shows it is possible to control several signal conditioning instruments with one sensor in order to detect different levels This wiring layout can be extended to include 10 instruments loop current 12 VEGATOR 620 622 Setup VEGA 4 Setup 4 1 Indicating and adjustment elements
19. ransmitters as part of an overfill protection according to WHG General type approval no Z 65 13 105 Ex approval When using measuring systems in Ex and StEx areas the instruments must be suitable and approved for these applications and explosion zones The suitability is checked by approval authorities and certified in ap proval documents VEGATOR 621 Ex and 622 Ex are provided with Ex approval ac cording to CENELEC PTB no Ex 96 D 2068 CE conformity C VEGATOR 620 621 and 622 signal condi tioning instruments see 1 4 Technical data VEGATOR 620 622 VEGA Product description 1 3 Types and versions VEGATOR 620 Single point level switch fixed switching hysteresis with selectable mode A B A overfill protection B dry run protection and adjustable integration time Inputs active 1 capacitive probe 1 hydrostatic pressure transmitter or 1 process pressure transmitter passive for connection to an active circuit Output 1 relay spat Application level detection overfill protection dry run protection When using two VEGATOR 620 connected to one sensor it is possible to provide a dual single point control It is possible to connect up to 10 VEGATOR 620 to one sensor see 3 3 Connection diagrams VEGATOR 621 Single point level switch fixed switching hysteresis with fault monitoring selectable mode A B A overfill pro tection B dry run protection and adjustable inte
20. ts Check the voltage supply and the mains connections as described under Connection instructions If the instrument still does not function please call our service department Check the sensor inputs for the following failures short circuit on the input sensor not connected correctly or polarity reversed sensor line interrupted supply voltage too low Check if the sensor is connected correctly failures in the sensor effecting a current change to below 2 mA or above 23 mA generate a fault signal on VEGATOR 4 20 mA LS Id v d V vi VEGATOR 620 bu C Measure the current in the connection cable to the sensor VEGATOR E oo 12 34 For Ex systems make sure that the Ex protection is not degraded by the measuring instruments a Current value 2 mA Check the supply voltage on the connection cable to the sensor The voltage should be at least 17 V Should a value below 17 V be measured it indicates a defect in the signal conditioning instrument In this case return the instrument for repair to VEGA If at least 17 V are available separate the signal conditioning instru ment from the connection cable and connect to the sensor input of the signal conditioning instrument a resistor of 2 2 kOhm If the failure lamp continues to light the signal conditioning instrument is defective In such a case return the instrument for repair to VEGA Should the failure l
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