TGR-T4 series USER`S MANUAL
Contents
1. FE E Connection of 3 safety PES to the control unit m a 2 l l l l o o EIE A 2 al 2 2 2 3 2 S x z E o o o o a a oO gt GND MAIN SUPPLY muting on 13 14 45 16 28 27 26 25 Muting sensor contatcs gt N O S s m gt Ta m o 9 E lt t tb A E Safety output 1 R 5 t e x a E TT idi safety output 2 E c ro gt EXTERNAL N N OE 7 need m e 7 5 5 20 t9 t8 t7 p 3 B e GUARD o e e e YE EER ES gt BREAK TR T PN z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 O FTC 4 ON OFF GUARD LED a5 TGR T4 PIN Assignment OOOOO FTC 3 BREAK bc RX4 OUT 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 2 FIC 2 RX3 OUT _ Qqogpupougoggogggogggooggo FTC 1 rx2out RX1 OUT e Muting controller Type 4 ED Four PES controller Crown 1 2 3 4 21 22 23 24 1 2 3 4 21 22 23 9 10 11 12 28 30 31 jJ aaa gag OO Q AAD ooa Z L nO t HT gt T l 8 k 8 2 E 2 g x gt W 14 2 gt LT H S5 or S10 S5 or S10 Transmitter Receiver 9 10 11 12 29 30 31 32 2 c1 min RARI Transmitter Receiver a d E 5 See EM eee QD D D ransmitter eceiver z 2 2 Lr2. 30 ms Working temperature 10 a 55 C Humidity from 15 to 95 not condensing Output contacts 2 NO 250 Vac 2 5 A max Switch capability 1 500 VA 180W Electrical life expectance 100 000 op minimun at 1 800 oprs hr Operative distance according to the type of photocell S5 5 8m 5 10 8m 30 5 50m e oO WW PEL e Outer controls start restart control test muting e Housing plastic case for installation on a din omega rail e Protection class of control unit IP 20 e Protection class of photocells IP 67 e Protection class of the cabinet containig the control unit IP54 at least e Weight control unit 600 g Control unit e Features of fuses muting signalling lamp internal resettable fuse TGR T4 315mA T 60V e Muting signalling LMS 27 28
3. oo e E TGR T4 contact of B2 The examples above are thought for the use of the muting functions only relating to sensors S1 and S2 with the configuration DIP SWITCH 2 in the off positions sensors S1 and S2 are controlled by the muting A and B inputs while sensors S3 and S4 are controlled by the muting C and D inputs His configuration makes other applications be possible Application with eight muting sensors and output and input control We imagine an area in which a manipulator acts the barriers in input and output must allow the passage of the packages only when the manipulator has terminated its work thus avoiding intrusions in unwished moments Trigger zone of handler User s manual 20 TGR T4 User s manual Muting sensor connection Muting enable to S3 and S4 contact of A3 from robot system control v e qo cl contact of A4 contact of B3 contact of B4 contact of A1 contact of A2 TGR T4 terminals contact of B1 contact of B2 Muting enable to S1 and S2 from robot system control The TEST and START pushbuttons must be positioned in such a way that the operator can see the protected area when he carries out restart test or override operations The LMS muting lamp must be positioned in a place where it can be seen from any operative point If the muting sensors are installed very near the protection photocells it is necessary to install the s
4. safety devices are useful only if installed correctly by respecting the indications reported on the standards If you believe not to have the sufficient competence to correctly install the safety devices apply to our advisory service or request the installation We recommend to leave free space on the cover side to allow a possible easy access to the inner parts Trouble that cause voltage interruption on power supply may cause temporary openings of the outputs that are not damaging in any case the safety work of the barrier The guarantee is complete for a period of 12 months starting from the delivery date of the device Defects which are clearly due to damage caused by an incorrect use accidental causes or catastrophic events are not covered by the guarantee In case of failure send the unit to TECHNO GR via Torino 13 15 10046 Poirino TO ITALY Tel 39 011 9452041 FAX 439 011 9452090 always indicating the detected failure and the operational period User s manual 26 TGR T4 User s manual TGR T4 User s manual 12 TECHNICAL DATA 13 OVERALL DIMENSIONS 99 mm 45 mm Voltage 24 Vdc 10 Electrical input 420 mA max for any model Combinable photocells Techno GR S5 S10 S30 series Number of photocells four pairs max Wire range size AWG 14 24 Solid Stranded Wire type 60 75 C copper Cu conductor only Torque on terminals 2 0 N m Indicators 4 green LEDs 1 green red LED Response time lt
5. 1 and 2 e Muting sensor connection contact of A1 contact of A2 contact of B1 contact of B2 24 Voc e 11 MUTEC I t t 10 MUTED 4 9 MUTEA 8 MUTEB v a oe TGR T4 A terminals 18 TGR T4 Application with two muting sensors passage permitted only for package 1 Muting sensor connection 24 Voc N C 11 MUTE C e N C 10 MUTED eo e contact of A A 9 MUTEA 8 MUTEB o contact of B E TORTA terminals where D minimum distance that the muting sensors keep active the request it depends on the parcel length D lt L di necessary maximum distance so that the muting request is accepted it depends on the parcel speed dmax cm v m s 3 s 100 This distance must not allow to activate both sensors and the muting with the accidental passage of a person Application with four muting sensors and only photocell S1 LMS Start amp Test Light cable button Power cable TGR T4 control unit Muting cable RX cable TX cable Protect the cables User s manual 19 TGR T4 Muting sensor connection o e terminals 24 Voc e FOREN TERRE contact of A1 NC 11 MUTEC so v L pop gb Xo ipo 3 1 Nc S 10 muted d i 1 v mi eo we 3 rT ot Lod contact of A2 9 MUTEA Le tf 2 2 j a f B1 8 MUTEB Bo A UEPY contact o zi di
6. Missed In brief this function present on all units is enabled and disabled by zm ungue ES EPI means of the following simple procedure The control unit is manufactured from the factory with the following Disconnectthe unit s power supply l configuration Connect the appropriate LMS muting lamp and the muting sensors Restore the unit s power supply e Automatic reset all four sensors in muting the maximum Bypass the muting function as follows duration of the muting is of sixty seconds Disconnect the units bower Sunol infinite muting duration this feature must be used carefully because it s i a eee p PP y against the norm Using this the user must know that it works under its aad Rica ae ici sole responsibility Restore the u p pply 7 2 CONFIGURATION OF THE NUMBER OF PHOTOCELLS In case you use a number of photocells which is lower than 4 operate as follows to disconnect the photocells do not use and therefore do not connect to the control unit carry out a connection among the following terminals unused photocell 19 to 27 20 10 28 251031 24 1032 At least one pair of photocells must be connected otherwise condition of all the disconnected photocells the control unit is locked TGR T4 7 3 2 INSTALLATION CRITERIA Ee 1 The muting sensors must recognise the material pallets vehicles etc in all its length 2 The sensors must be arranged in such a way that the material is recognise
7. S ON THE TERMINAL BOARD ssseeeee 10 52 PINOUT TOP VIEW iriiria EE ARE E 11 5 3 WIRING EXAMPLE treten ete suni tresses daai arinari nisrani eein 12 ALIGNMENT PROGEDUBE ccena ribi 14 OPERATING PROGCEDUMHES iinin iini niidithn comer a ania 15 7 4 DIP SWITCHES CONFIGURATION sssseeeeeeeenentnnnnn 15 7 2 CONFIGURATION OF THE NUMBER OF PHOTOCELLS 15 7 3 MUTING F NGCTION tette ient eeepc 16 7 3 1 DESCRIPTION rnc nna bout aec Dueb eH 16 7 8 2 INSTALLATION CRITERIA sese 17 TA OVERRIDE ccrte ina deii dag ati tese bred arta pron 22 7 5 STARTING THE OVERRIDE FUNCTION ssssseeetenn 22 7 6 MUTING RESTRICTIONS MUTING FUNCTION esceetetnnnnn 23 LED DIAGNOSTIC Luieseniaeias enit BUG rius dci xiii rna ue dn ad ia 24 FINAL CHECKS Liuiirsceccieeccckioxi sonic iid lei kt d oriri 25 10 ROUTINE MAINTENANCE OPERATIONS ees 25 11 GENERAL INFORMATION AND USEFUL DATA 26 12 TECHNICAL DATA uiireiienshdu nna bini tios Rt talit igna 27 13 OVERALL DIMENSIONS iauicun innui ci ndi Ram tad nod 28 TGR T4 BEFORE USING THE DEVICE GENERAL INSTRUCTIONS To guarantee a correct installation carefully follow the instructions of this manual Do not touch non insulated cables unless they have been disconnected from the power supply Make sure that the cables connected to the control unit are n
8. TALLATION DISTANCE The safety distance S must be sufficient to guarantee that the dangerous area cannot be reached by the operator up to the moment in which the machine with moving part stops The safety distance must be calculated according EN999 European Standards Safety of Machinery The positioning of protective equipment in respect of approach speeds of part of the human body Using EN 999 formula S K T C S safety distance T T1 T2 whereas T1 machine response time in seconds T2 unit response time in seconds including Safety sensor response time K 1600 mm s speed of the body approaching the dangerous area C additional distance depend on resolution of SLC and applicable standard 1 Multiple separate beams EN999 clause 6 1 4 K 1600 mm s C 850 mm Heights recommended 4 Beams 3 Beams 2 Beams in EN999 Heights of 1 ray 300 mm 300 mm 400 mm Heights of 2 ray 600 mm 700 mm 900 mm Heights of 3 ray 900 mm 1100 mm Heights of 4 ray 1200 mm 2 Single height beam EN999 clause 6 1 5 Where the risk assessment allows the use of a single beam the following values can be used K 1600 mm s C 1200 mm The height of beam from the ground or reference plan 750mm EN 999 User s manual TGR T4 User s manual A WARNING Always maintain the safety distance between the safety PES and a hazardous part of a machine 4 2 REFLECTIVE SURFACES In case that ref
9. TGR T4 User s manual TGR T4 series Single beam safety control unit safety level 4 from 1 to 4 pairs of photocells USER S MANUAL TGR T4 User s manual C The device conforms with the EC requirements in compliance with the following standards Low Voltage Directive 73 23 EEC EMC Directive 89 336 EEC Machinery Directive 89 392 EEC IEC 61496 1 1997 IEC 61496 2 Ed 2 IEC 2001 CDV draft8 DIN V VDE 0801 1990 and amendment A1 1994 EN 61000 2 3 4 5 6 EN 55022 1994 DIN EN 60204 1 1993 EN 50178 1997 IEC 664 1 1997 MANUFACTURER TECHNO GR s r l via Torino 13 15 10046 Poirino TO ITALY Tel 39 011 9452041 FAX 39 011 9452090 USER MANUAL Versione 3 0 del 15 12 2004 User s manual TGR T4 INDEX 1 BEFORE USING THE DEVICE enitn acia eld 4 1 1 GENERAL INSTRUCTIONS cccccsccecssesessecssseeessneessseessneeesseeesneeesneeesnisess 4 1 2 PRECAUTION OF SAFETY penio 4 1 3 ROUTINE MAINTENANCE 3 ccx ccscvccscccscasntseconsssstvecncctucastendesndtechusinsvetstevecatntuee 4 GENERAL INFORMATION AND MAIN APPLICATIONS 5 OPERATION icacxesdciaicencca dus ioniiacar oria cerno rdi 7 PRECAUTIONS AND INSTALLATION CRITERIA 8 4 1 CALCULATION OF THE MINIMUM INSTALLATION DISTANCE 8 45 REFLECTIVE SURFAGCES cete creto tote tricies 9 5 GONNEGTIONS aiii rio donideada QUI RI UM RR NUNG ennenen CR 10 5 1 REFERENCE
10. d even when it must be lifted for the relevant processing 3 In case of different transport speeds in the muting area always bear in mind their influence on the muting total duration 4 All the safety photocells and the muting sensors must be arranged in such a way that the previous material has already passed the last muting sensor before the new material has reached the first sensors In the previous page an installation example of a protection arranged on a conveyor is drawn it must allow the passage of package 1 preventing other packages from passing or it must allow the passage of packages 1 and 2 preventing package 3 from passing The protection photocells S are connected to the TGR T4 control unit and are temporarily interrupted at the package passage by means of the muting A1 A2 B1 and B2 activated sensors Sensors A and B are optical mechanical proximity etc sensors with closed contact in the presence of the object to be detected In both cases the configuration dip switch 2 must be set in the on position User s manual TGR T4 User s manual Application with four muting sensors passage permitted only for package 1 Muting sensor connection 24 Voc e contact of A1 V NC 11 MUTEC 17 uc Sl 10 MUTE D ir a contact of A2 9 MUTEA contact of B1 8 MUTEB v e3 eH TGR T4 e terminals contact of B2 Application with four muting sensors passage permitted only for packages
11. e output contacts are in the opened 23 TGR T4 User s manual 8 LED DIAGNOSTIC Information of the units operative state by means of four LEDs The LED state has the following meaning e GREEN LEDs if switched on the photocells work regularly and no object is detected the relays are closed e RED LED GREEN LED if switched on in RED the unit has detected an object or an error has occurred which can be possibly recovered by pressing the reset button in this condition the safety outputs are opened e RED LED GREEN LED if switched on in GREEN the barrier is working regularly and there are no detected obstacles in this condition the safety outputs are closed The Unit include a simple diagnostic indications on the most significant errors One LED flashing Error in an photocell pair Two LED flashing Error in connection of bypassed PES Three LED flashing Error in muting lamp or invalid sequence of muting Four LED flashing Internal fail of system All these errors are resettable by the TEST pushbutton if the error condition can be removed THE LED INDICATIONS CAN BE POSSIBLE ONLY IF THE SLC ASSOCIATED TO THE LED FLASHING ARE FREE IF THE SLC ARE INTERRUPTED THE LEDS CAN ONLY BE OFF 24 TGR T4 9 er cg FINAL CHECKS Check that the area protected by the barrier is free from any obstacle check the correct triggering of the safety relay opening by interrupting the protection
12. eas exposed to intense interference light such as direct sunlight Areas with high humidity where condensation is likely to occur Areas exposed to corrosive gases Areas exposed to vibration or shock levels higher than specification provisions User s manual TGR T4 GENERAL INFORMATION AND MAIN APPLICATIONS e Do not use the cellular phones or transceivers near the control unit and safety PES e The control unit and safety PES must not be used in water The TGR T4 safety controller is protected by a plastic housing so that it can be installed on a DIN OMEGA rail it has 32 removable screw terminals to which it is possible to connect from 1 to 4 pairs of photocells This version of the single beam safety control unit has the muting function integrated by means of this function it is possible to connect or disconnect one or more pairs of photocells in order to allow for instance the material passage without stopping the machine The additional override function enables system to keep the output relays closed even with intruded rays to enable material transport after a system shutdown Both muting and override functions represent a system that require additional precautions to limit the reduction of the safety level This precautions have to be considered carefully The muting and override function is available by simply connecting the LMS muting lamp supplied separately The presence of a limb or an object interrup
13. ensor receivers on the photocell sender side to avoid interference The system is anyway protected from possible failures due to the cable damage it is necessary to prepare the wiring of all connections so as to avoid damage to the connection cables The control unit must be located in a cabinet with protection degree of at least IP54 21 TG 7 4 7 5 R T4 OVERRIDE This function makes it possible to force a muting condition if it is necessary to start the machine despite one or more rays have been interrupted by the material The aim is that of removing from the protected area the material which has possibly gathered before the photocells for instance because of a failure of the machine cycle Let s suppose that a pallet has stopped before one or more used optical devices the conveyor belt cannot be started again because the control unit after having detected one or more interrupted rays will not close the safety outputs thus making it impossible to free the controlled area By starting the override function it will be possible to carry out this operation STARTING THE OVERRIDE FUNCTION e Switch off the control unit e Make sure that the TEST and RESET buttons are connected N C for the TEST button N O for the RESET button e Switch on the control unit e Within 10 seconds press together the test and reset buttons and keep pressing At each switching on operation a test is carried out to check that the b
14. ers and receivers of safety PES are installed alternately as follows 14 TGRTA User s mana IGRT4 User s manual 7 OPERATING PROCEDURES 7 3 MUTING FUNCTION 7 1 DIP SWITCHES CONFIGURATION 7 3 1 DESCRIPTION The configuration indicated in the table must be selected on both the dip l As mentioned in the introduction the muting function can be enabled switches available in the front cover with any unit by simply connecting the LMS muting lamp when the unit is switched off o ra This presence of this indicator is recognised every time the unit is powered on If its presence is detected the unit will enable the muting aa NI 2 EE function and if its presence is not detected the unit will ignore any muting A B act on the sensor couples 1 B request for muting It is important to note that if the muting indicator is and 2 connected during the TGR T4 is powered on it will not be recognised muting C D n the sensor Sw2 eo 0n tne sensor couples 9 oer and the muting function will not be enabled Once enabled if the pay eho ee aged TE indicator develops a fault or is removed without first disconnecting the The sensor couples 3 4 continue to CI unit s power supply it will signal an error as described in section 8 function normally B To disable the muting function the unit s power supply must be turned 4 ue 0 05 0Y NENNEN ee on without the LMS muting lamp connected
15. lective surface exist the distance must be sufficient to avoid the possibility of passive reflections lt Top View gt reflective material RX PES A TX PES i 2 2 f J x e Object E 7 reflective material Distance between emitter and Minimum installation distance receiver detection distance L D 0 3 to 3m 0 27 m 3m or more Lx tan 2 L x 0 034 m AN WARNING Do not install the safety PES in a location affected by shiny surface reflections TGR T4 User s manual 5 CONNECTIONS 5 1 REFERENCES ON THE TERMINAL BOARD TERMINAL BLOCK ASSIGNMENT Input of the muting B sensor Connect to the N O contact of the muting sensor photocell proximity switch other Input of the muting A sensor Connect to the N O contact of the muting sensor photocell proximity switch other Input of the muting D sensor Connect to the N O contact of the muting sensor photocell proximity switch other Input of the muting C sensor Connect to the N O contact of the muting sensor photocell proximity switch other Earth Connect to the plant s earth OUT1 safety output 1 with N O contact OUT2 safety output 2 with N O contact Power supply to emitters TX of PES 1 and 2 Connect Vs wires pin 1 of connector to terminal 17 and OV wires pin 3 of connector to terminal 18 17 18 Sending test signal to emitters TX of the safety PES 1 and 2 Connect test wire pin 4
16. o 5 5 5 E Eee g z iz iz g 5 6 c 11 T ao TGR T4 Please note A A To configure the control unit in such a way that it works only with three photocells it is necessary to connect the unused transmitter output to the corresponding receiver input in this case to terminal TEST TX3 with PNP_OUT RX3 All models can be connected in all the possible combinations for a maximum of four pairs of sensors with at least one pair connected The power supply which is necessary to power the system must conform to standard EN 60742 double insulation or with equal insulation for instance VDE 0551 It is necessary to protect the control unit with an outer fuse having a nominal interruption current equal to 1 A The TEST and RESET pushbuttons must be positioned in such a way that the operator can see the protected area when he restarts or carries out a test or override operation The Muting lamp LMS be positioned in a place where it can be seen from any operative point Read the paragraph relating to the muting function and its use for the positioning of the activation sensors of this function Both safety contacts OUT1 and OUT2 must be connected If the machine has a single locking circuit the two normally opened contacts must be connected in series The connection cables of the photocells of muting request start and test must be masked with minimum section 22AWG The screen braids must be all earthed towards the cont
17. of connector of PES 1 to terminal 19 and that of PES 2 to terminal 20 Power supply to emitters TX of PES 3 and 4 Connect Vs wires pin 1 of connector to terminal 21 and OV wires pin 3 of connector to terminal 22 Sending test signal to emitters TX of the safety PES 3 and 4 Connect test wire pin 4 of connector of PES 3 to terminal 23 and that of PES 4 to terminal 24 Power supply to receivers RX of PES 1 and 2 Connect Vs wires pin 1 of connector to terminal 25 and OV wires pin 3 of connector to terminal 26 27 28 Receiving PNP output from the receivers RX of safety PES 1 and 2 Connect PNP out wire pin 4 of connector of PES 1 to terminal 27 and that of PES 2 to terminal 28 Power supply to receivers RX of PES 3 and 4 Connect Vs wires pin 1 of connector to terminal 29 and OV wires pin 3 of connector to terminal 30 Receiving PNP output from the receivers RX of safety PES 3 and 4 Connect PNP out wire pin 4 of connector of PES 3 to terminal 31 and that of PES 4 to terminal 32 10 TORTA Users man TORTA User s manual 5 2 PINOUT TOP VIEW 5 3 WIRING EXAMPLE
18. ot too taut and that they do not hinder the movement of persons or objects The control unit does not contain parts subject to maintenance before carrying out any outer operation turn off the power Do not open the control unit for any reason apart from the selection of the configuration dip switch which must be only carried out by skilled workers and in case of failure send it to our laboratories indicating the detected failure and the operation period Avoid touching the protective cover of the safety sensors with the hands in order to prevent dust and or grease build upon the device thus reducing the system performances The possible wear of the protective covers does not compromise the system safety in any way but can cause a system tripping PRECAUTION OF SAFETY The following symbols are used for highlighted items in order to ensure safe and proper use of the TGR T4 Highlighted items are critical for safe operation and must be heeded at all time AN WARNING CS NOTICE ROUTINE MAINTENANCE Be sure to conduct inspection regularly Please refer to sec 10 and the safety PES instruction manual Techno GR refuses to accept any responsibility for damage to persons or object due to the incorrect use installation of the control unit and safety PES User s manual TGR T4 2 The single beam safety control unit TGR T4 has been designed and produced to meet the need to protect persons in areas where it is necessary to g
19. rays red LED switched on controlled machine stopped CAUTION If the red LED switches on and off check the correct mechanical assembly NOTE This check must be repeated each time you move or mechanically re align the photocells 10 ROUTINE MAINTENANCE OPERATIONS Here is a list of checks recommended to the user to be carried out periodically by skilled workers e Check that the barrier locks by inserting an object detecting the single elements of each photocell e By opening the fest contact check that the safety relays are opened red LED switched on and machine under test stopped e Make sure that the access to the machine dangerous areas is not possible from any non protected area and that the minimum distance from the barrier dangerous parts is not lower than the one calculated with reference to the formula reported at paragraph 4 1 e Check that it is not possible for a person to stop between the barrier and the dangerous parts of the machine e Make sure that there is no outer damage to the barrier and or the outer electrical connections e Make sure that the response time including the barrier and the machine ones does not exceed the established limits The frequency of these operations depends on the special applications and operative conditions according to which the barrier is working User s manual TGR T4 11 cg cg GENERAL INFORMATION AND USEFUL DATA Safety MUST be part of our consciousness The
20. rol unit side User s manual TGR T4 User s manual 6 ALIGNMENT PROCEDURE After having carried out the correct mechanical assembly and the correct connections as described in the previous paragraphs it is necessary to align the pairs of photocells Follow the operative modes as follows Turn off the power supplying the control unit Open the test contact Power the control unit Align the photocells by observing the LEDs on the control unit If the alignment of the relevant pair of photocell is correct the LED corresponding LED will turn on After the alignment turn off the power supplying the control unit close the test contact and power the control unit again e Wait for the control unit to carry out the initial tests e Atthe end of this operation the unit indicates the right alignment with the guard led green on e Carry out all the checks described in the final checks and in the routine maintenance operations During aligning operations or normal working check that the photocells connected to the same or other units do not interfere which each other NOTICE The control unit can detect the mutual interference between safety PESs The control unit forces the output contact to open when it detects external disturbance light including mutual interference light The safety PESs should be installed the following way to avoid mutual interference The safety PESs are installed with sufficient distance Emitt
21. ting a beam causes the opening of the safety outputs and the consequent stopping of the connected machine It is necessary for the safety sensors to be connected in the right position in such a way that there isn t any possibility to climb over or defeat the system Here is a list of the commonly used applications o Machines for the processing of wood glass and ceramic products o Automatic warehouses o Conveying lines Palletizers The unit has been designed in accordance to the following standards IEC 61496 1 1997 Safety of machinery electro sensitive protective devices General requirements and test FDIS IEC 61496 2 1997 Safety of machinery electro sensitive protective devices Particular requirements for system using active opto electronic devices User s manual TGR T4 User s manual 3 OPERATION The electronic control system of the device is made up of a microprocessor By means of the suitable hardware it continuously control and check the connected photocells No interference among the photocells is possible as they are controlled sequentially it will be thus possible to install one or two adjacent photocells When one or more beams are interrupted the electronic system opens the outputs The photocells have been triggered are displayed by LEDs on the housing The control unit can work in two different modes please refer to par 7 which he can carry out the following operations The two external but
22. tons that have to be connected are for TEST This is used to check if the whole system works effectively By pressing the TEST button opening of the contact this simulates the interruption of one or more safety PESs This operation makes the machine stop so the system checks can be made according to the established time and modes If pressed after a failure detection of the unit see the table error code reset of the system is required RESET button It is used to start the system also for manual reset condition after relay triggering or after an error which can be reset see table related to the error codes Two different operating modes are available 1 2 Automatic reset The system will start automatically after the beam intrusion have been removed Manual reset The system will remain in safe off condition until the RESET button have been pressed This manual reset allows to start the system only on a wanted action of the user During the unit working no operation set by the user interface involves functions which can influence the system safety TGR T4 4 PRECAUTIONS AND INSTALLATION CRITERIA The safety products used must be suitable for the required application and other influences must be also taken into account such as a room temperature electromagnetic interference intense light sources etc Please refer to the manual for specification or contact the manufacturer for details CALCULATION OF THE MINIMUM INS
23. uarantee the safety of the operator using machinery robots or in general automation systems which are considered dangerous or subject to casual or undesired access to unsafe parts The system conforms with the requirements for safety devices of type 4 in compliance with international standards e g IEC 61496 1 2 WARNING The safety system category depends on the safety PES s used as follows Type 4 safety PES Type 2 safety PES Safety system category 4 Safety system category 2 A qualified person as determined by local regulations must confirm that installation inspection and maintenance are implemented correctly Do not disassemble repair and modify the control unit and safety PES The control unit does not contain parts subject to maintenance The presence of a limb or an object interrupting one of the safety PESs will open the safety outputs and consequently stop the connected machine It is necessary to install the safety PESs in such a way that bypassing and defeating of any person is not possible Do not use the control unit and safety PES on machines that cannot be stopped by electrical control in case of an emergency Do not use the control unit and safety PES in environments exposed to flammable or explosive gases Do not use the control unit and safety PES in a retro reflective configuration Otherwise detection may fail NOTICE Do not install the control unit and safety PES in the following environments Ar
24. uttons are not locked e The override function has been activated The display visualises three overlapping segments The muting lamp blinks to signal the light curtain disconnection e The maximum duration of the override function amounts to 60 seconds after that the light curtain is connected again even if the buttons are pressed If the buttons are released before this time has elapsed the override function will be immediately stopped User s manual 22 TGR T4 User s manual 7 6 MUTING RESTRICTIONS muting function a The muting operation must occur according to the correct timing sequence For the two muting channels it is necessary to activate input MUTE A or MUTE C at first and then input MUTE B or MUTE D within 3 seconds If not the muting sequence will not be activated b When the muting state is active an object can remain for a period of no longer than 60 s otherwise the muting function is switched off This mechanism is optional and can be deactivated when the control unit is set up see page 13 c For the cases in which the muting function is automatically disabled because of time out the request must be cut out override function or removing object and restart to generate the following correct muting state Tr 30 ms min wes C TE ae r 3 S max ee MUTE_STATE OFF OFF 20 60 S max It is not possible to carry out a muting request if the light curtain is interrupted and th
Download Pdf Manuals
Related Search