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Terms

The press brake protection AKAS® is an electrosensitive protective device (ESPE).
ESPE is characterised by the fact that a hazardous motion becomes interrupted or prevented if the

light beams

produced between the transmitter and receiver unit are interrupted.

AKAS ® meets Safety Category 4 according to EN 954, e PL (Performance Level) according to EN ISO 13849-1:

2008 and SIL 3 according to EN 62061:2005 Devices to safety category 4, PL e, SIL 3 are self-monitoring

sensitive protective equipment and provide the highest Safety class among the sensitive protective equipment.

The electrosensitive protective device (ESPE) switches automatically into the "safe state" when it is faulty.

Maximum distance between transmitter and receiver is 6 m ( For longer range please get in contact with
Fiessler Elektronik or your local dealer).

The part of the hazardous motion still taking place after interrupting the light beam.

The distance covered during the overrun (e.g. by the ram of a press).

The duration of the overrun traverse.

The time that elapsed after light beam interruption until the switching action occurs.

Before every release of the output contacts the contactor control is checking whether the switching elements connec-
ted (relays, contactors or valves) have been released. A renewed release of the
output contacts is only possible if the switching elements connected have been released. Thus a dangerous failure of
switching-elements (relays, contactors or valves) caused by the hazardous motion is prevented.

After initial operation or after a power supply interruption a renewed "enabling" is blocked by the start interlock.The re-
newed release of the switching unit is only possible by closing and opening of the start entry.

The restart interlock prevents any automatic releasing of the switching outputs after an interruption and
re-enabling of the light beam (e.g. when penetrating the light beam).

Short-time safe by-pass of the press brake protection AKAS® during material movement, i.e. during a plate bending
process.

By-pass of the receiver unit E1 during a box-bending process.

44

Electrosensitive protective

equipement

Safety category 4

PL e, SIL3

Self-monitoring

Standard Installation range

Overrun

Overrun traverse

Overrun period

Response time

Valve or contactor control

Start interlock

Restart interlock

Muting

Box-bending

11

Doku Nr. 995 Stand 1.12.2011 / Aui

FIESSLER

E L E K T R O N I K

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Содержание AKAS LC-II F

Страница 1: ...ions Application Instruction for use Mechanical data Electrical connection Putting into operation FIESSLER E L E K T R O N I K Telefon 0711 91 96 97 0 Internet http www fiessler de Telefax 0711 91 96 97 50 eMail info fiessler de EC type examination certified AKAS LC II M AKAS LC II F Zertifiziertes QM System nach DIN ISO 9001 2000 Doku Nr 995 Stand 1 12 2011 Aui E L E K T R O N I K ...

Страница 2: ...for Integrating the AKAS inti the machine control system 23 6 4 AKAS LC II M 24 Functions Terminals 24 Connection 25 6 5 AKAS LC II F 26 Functions Terminals 26 Connection example safety monitoring of the machine by AKAS F 28 6 5 1 AKAS F selectable Safety functions 29 1 Operation with additional safety control 29 2 Monitoring of the Foot Pedal 29 Connection 2 Foot Pedals for 2 Operators 29 3 Easy ...

Страница 3: ...LED is on if box bending funktion is activated Indicator lights for in and outputs connection lid SP SGA SGO SGS RXOK2 RXOK1 NLW NA1 NA3 NA2 FUS FUO EDMO EDMS Indicator lights for in and outputs see page 36 Outputs for release of rear stoppers Input for Overruntraverse controll Inputs for control of protective grids or doors and emergency off circuits Inputs for press start stop release of closing...

Страница 4: ... receiver elements connector plug 1 2 3 4 5 6 ajustment controll Leds of the receiver elements E1 E2 E3 LEDs are on if the beam does focus at all see page 19 integrated mutinglamp lamp is on if the protective field of the AKAS is not activated lamp is flashing if EDM or SP input signals are wrong see page 36 LEDs for safety outputs OSSDs Fail Safe PNP red LEDs are on if the OSSDs are in OFF status...

Страница 5: ...an only stop the opening movement when the movement is interupted with the RXOK outputs 5 Read the operating in structions Qualified Personnel Safety warning A Test putting into operation B Test daily check at least every 24 hours Safety Instructions Please observe always 2 Doku Nr 995 Stand 1 12 2011 Aui A TEST when putting into operation The setting must be done in a way that the following test ...

Страница 6: ... stroke speed is 10 mm s 6 The protection of a pressbrake by the AKAS does not permit a bending in the bottom of a box inside one box in fast speed 7 The AKAS does not protect if the machine is only run in the work speed or AKAS will be interrupted during fast speed and the stroke will be continued in work speed if the overrun traverse of the press brake is too long from squeezing during the bendi...

Страница 7: ...61496 Type 4 is self monitoring without additionally wiring easy to adjust after tool changing Operative range for the laser accident preventing light barrier of the AKAS types are press brakes AKAS 3M 3F AKAS LC IIM IIF equipped with electromotor driven supports for transmitter and receiver for self acting tool change if tools with diefferent heights are used AKAS LC II M LC II F is recommended i...

Страница 8: ...emergency OFF circuit s 2 3 2 3 1 selectable with without 3 Pairs selectable with without Stopp contactor control EDMO EDMS data of traverse in slow speed SGW start stop of closing stroke FUS FUO position control in slow speed SGO SGS 2 equivalent 2 selection of box bending KAST safety point SP Outputs Safety outputs for release of closing stroke OSSD1 OSSD2 1 1 2 2 selectable with without 1 selec...

Страница 9: ... the possibility to execute a closing movement under monitored slow speed even when the protective field is interrupted by a wavy sheet metal After the interruption of the protecfive field and the release and reactivation of the foot pedal the AKAS will deacti vate the SGA output when the protective field is interrupted By this only slow speed will be enabled by the machi ne control NC AKAS provid...

Страница 10: ...ld is interrupted After the interruption of the protecfive field and the release and reactivation of the foot pedal the AKAS will deac tivate the SGA output when the protective field is interrupted By this only slow speed will be enabled by the ma chine control NC AKAS provides a reaction time of about 200ms for the machine control and then activated the safety switching outputs for the closing mo...

Страница 11: ... fastening with shifting tenon blocks at the three side of transmitter and receiver housings max Standard Range housing type fastening dimensions mounting bracket 4 4 1 170 160 150 123 75 56 25 30 10 6 5 50 6 30 27 M6 20 4 x Senkkopf für M5 M4 27 M4 5 2 5 2 26 fig 11 1 Fig 11 2 Doku Nr 995 Stand 1 12 2011 Aui 46 5 37 5 24 10 4 95 5 14 13 5 13 5 13 5 2 10 12 2 35 17 24 30 front view FIESSLER E L E ...

Страница 12: ...oid if Fiessler holders are used Mounting of the holders at the ram 4 5 6 7 Mounting of the AKAS at the ram Connection of the AKAS Selection of the operating mode at the F series Adjustment of the AKAS during first installation Adjustment of the distance of the AKAS from the bending punch 8 9 Function Verification of all electrical connections in view of the safety classs 4 requirements Self actin...

Страница 13: ...the test rod see page 5 or by using an Overrun Traverse measuring device upon customer s request Fiessler Elektronik will perform the Overrun Traverse Measuring on the customer s machine If the results of 10 consecutive measurements are larger than 10 mm he fast speed must be reduced Mounting 1 Overrun Traverse Measurement 13 5 Overrun Traverse Measurement 5 2 Doku Nr 995 Stand 1 12 2011 Aui E2 Z ...

Страница 14: ...njuriers while closing the press c The existing mechanical guards of the machine must be modified in a way that any by passing of the safety equipment by the operator is not possible Likewise any danger of geeting caught between grids and safety equipment must be excluded Transmitter and receiver of the AKAS must not be subject to mechanical stress e g bottles must not be placed on it To prevent t...

Страница 15: ...ment screws must be easily accessible Pay attention to avoid any deformation of the profile When pivoting around the longitudinal axis the locknuts of each M 6 screw at the angle bracket should be loosened Fiessler Elektronik OHG Kastellstra sse 9 D 73734 Esslingen Tel 0711 919 6970 P1 E2 E3 Ausricht kontrollen 1v 2v 3v 4v 5v 6v 1v 2v 3v 4v 5v 6v Mutingkon takt 1 Vordere Anschluss reihe am Empfäng...

Страница 16: ...at the mark centre of the receiver elements is located vertically at the front of the receiver When using a manually movable sup port for transmitter and receiver make this test along the entire displacement area Check the distance between the mark and the perpendi cular bending line to make sure that the receiver is carried up parallelly to the bending line The transmitter must be mounted in a wa...

Страница 17: ...AKAS LC transmitter is adjusted as follows 1 Place the special AKAS LC magnetic lamina with its magnetic side at the spot marked A 2 Adjust the transmitter in a way that the picture LS can be seen at the front side of the lamina 3 Then place the special AKAS LC magnetic lami na with its magnetic side at the spot marked B 4 2 Adjust the transmitter in a way that the picture LS can be seen at the ma...

Страница 18: ...end and at the right tool end the beam it hits a spot at the left out side of the target circle The beam hits the target circle at the left tool tip and at the right tool end the beam it hits a spot at the right outside of the target circle The transmitter must be turned to the right in the slot i e on the Fiessler hol ders the inclination adjustment screw mzust be tightened The transmitter must b...

Страница 19: ... flashing slowly until the press brake is not opened completely Mounting adjustment of the AKAS at the first installation adjustment control LEDs 19 5 5 7 Doku Nr 995 Stand 1 12 2011 Aui synchronization transmitter receiver AKAS LC II M F transmitter beam does focus at all beam does not focus precisely E3 E2 E1 on E partially off beam does not focus at all E off E3 E1 E2 Ausricht kontrollen Adjust...

Страница 20: ... the adjustment control of E3 lights up Afterwards the receiver must be moved manually downwards until the adjustment controls of E3 are about to go out again After having completed the adjustment procedure the tests see page 5 must be carried out Mounting adjustment directions after tool change Adjusting instruction when using a movable support for transmitter and receiver Schematic layout of the...

Страница 21: ...ed when the cam switch is opened by the cam and the stroke is started out of the upper dead center of the machine The overrum traverse test is carried out after every voltage reset and must be repeated every 24 hours After the successful overrun traverse test the press must be at first opened for the execution of one bending stroke If the overrrun traverse is too long the cam does not open the ove...

Страница 22: ...into closing state after enabling of the OSSDs 300 ms only with operatiing mo de with contactor valve control EDM switch over into slow speed state when the start is carried out within the range of the safety point at SP 1 100 ms after detection of the closing movement state by the EDM i e 100 ms after enabling of the OSSDs when the press is operating without the EDM switch over into fast speed wh...

Страница 23: ...otion with AKAS the downward movement should only happen by pressing the foot pedal The above mentioned foot switch must be a 3 position safety foot switch 4 5 6 7 The valves relevant for the downward movement must be triggered as directly as possible by the Fail Safe PNP outputs OSSD1 and OSSD2 to keep the overrun traverse as short as possi ble In all operating modes except Foot operated fast mot...

Страница 24: ...ls of the transmitter Nr 1 designation S meaning Ub transmitter 2 6 S Erde Ub transmitter functional ground Anschlussklemmen Empfänger Nr 1 designation Erde meaning functional ground signal level 2 3 4 5 Ub 24VDC Ub 0V power supply voltage power supply voltage RS 232 GND Ub Sender Meldeausgang Status Fehlermeldung connection for Ub AKAS transmitter 6 7 8 9 Ub Sender FUS connection for Ub AKAS tran...

Страница 25: ...l connections Description Wiring diagrams 6 6 4 Doku Nr 995 Stand 1 12 2011 Aui wiring diagram 0 S 25 with HEX switch position 00 00 safety control e g Safety PLC FPSC monitoringofthe closingstroke release position monitoring of the slow speed closing stroke valves contactors valve position monitors foot pedal foot pedal monitoring Ub safety PLC e g FPSC functional ground request by safety PLC e g...

Страница 26: ...t 30 h Stop contactor control EDM Monitoring of the slow speed position position monitoring of the contactors Release of the closing stroke via safety outputs monitoring of the mechanical protective grids at the rear and at the sides of the press emergency OFF Monitoring Emergency OFF at the rear and at the front Emergency OFF of the rear stoppers Emergency OFF at the rear and at the front metal p...

Страница 27: ...at slow speed 24V at fast speed 0V at slow speed 0V within fast speed range 24V within slow speed range 0V at fast speed 24V ar slow speed 0V at fast speed 24V at slow speed 0V only slow speed permitted 24V fast slow speed possible 0V if activated by cam switch 24V if not activated by cam switch 0V only slow speed permitted 24V fast slow speed possible 14 15 16 17 EDMS EDMO input monitoring of the...

Страница 28: ...positions of the fast speed and slow speed state and requires in fast speed at SGO 24 V and at SGS 0 V in slow speed at SGO 0 V and at SGS 24 V During the switching over from one state into the other state an enhancable switch over time is tolerated see selectable switch over delay enhancement of the valve position monitor Machine Safety monitoring by AKAS F Es ist nur eine Hälfte einer 2 Zylinder...

Страница 29: ... must correspond to the allowable overrun traverse plus the hysteresis of the cam switch The maximum allowable overrun traverse must not exceed the value of 10 mm This overrun tra verse cam must be mounted in a way that the press is in the maximum closing speed when the cam switch is opened by the cam and the stroke is started out of the upper dead center of the machine The overrum traverse test i...

Страница 30: ... is carried out by activation of an normally closed contact butto which is connected in series to the normally closed foot pedal contact at FUO see wiring diagram 2 S 39 u 5b S 30 The Reset after the disabling and re enabling of the rear protective grid is carried out during the opera tion with EDM by activation of a normally closed contact button which is connected in series to the nor mally clos...

Страница 31: ...2 R 1 5 EU2K 500 2 R S_EU2K wiring diagram 7 S 31 right lateral protec tive grid open left lateral protective grid open Emergency OFF 1 Emergency OFF 2 Reset button for light grids Protective doors and emergency OFFs and light grid EU2K 500 2 for rear safeguarding at operating mode antivalent protective door control pairs with EDM with monitoring of the foot pedal 24V receiver Reset button for Eme...

Страница 32: ...nt switching protective door contacts operation with antivalent switching protective door contacts NA1 NA3 NA2 EDMO FUO 24V Wiring diagram 8 S 32 Emergency OFF 1 Emergency OFF 2 Reset button for Emergency OFF lateral protective grids and selector switch operation with activated protective field of the AKAS and slow speed closing movement selector not activated operation with only protection by mon...

Страница 33: ...or vice versa can be enhanced by additional 300 ms The basic tolerances have the following values Switching over from stopped condition into closing movement after the enabling of the OSSDs 300 ms only with operating mode Monitored EDM Switching over into the slow speed condition when the start is within the range of the safety point when SP 1 100 after from the detection of the closing movement c...

Страница 34: ...without without with without with E F with with without without without with with with without with Hex swit ches 2 and 4 Hex switch positions EDM stop val ves mo nitoring slow speed traverse in formation switching over tolerance enhan cement of the valve position monitors 0 1 without without without without 0 ms 100 ms 2 3 4 5 without without without without without without with with 200 ms 300 m...

Страница 35: ... doors Emergency OFF equivalent switching 0 1 without without equivalent equivalent without without without with 2 3 4 5 without without equivalent equivalent with with antivalent antivalent with with without with without without without with 6 7 with with antivalent antivalent with with without with start stop of closing stroke Hex switch 2 and 4 Hex switchpo sitions EDM Stop valve monito ring sl...

Страница 36: ...If the LEDs still remain dark open and close all other protective doors protective circu its then activate the RESET Button s If the lateral protective doors are closed all other protective doors protective circuits must be equally closed NA1 NA2 NA3 must be lit if the protective door contacts are equivalent If the protective door contacts are anti valent NA1 and NA 3 must be lit and NA2 must be d...

Страница 37: ...dal inputs error at the request for release of the closing stroke Mutinglamp does not light up without overrun traverse control Stop at the overrun traverse cam check the equivalent switching lines going FUO and FUS They are evaluated as different see message 63 during overrun traverse test 23 39 43 43 open the press completely in order to quit the safety point range release foot pedal without ove...

Страница 38: ...y Fiessler Elektronik is necessary open and close again all lateral protective grids and all Emergency OFF buttons so that a possible bad contact is activated again open and close again all rear protective grids and all Emergency OFF buttons so that a possible bad con tact is activated again if this is displayed again after the voltage reset a ve rification by Fiessler Elektronik is necessary re e...

Страница 39: ...ing of the SGA circuit with an other line fast speed slow speed signals are faulty in stop status fast speed slow speed signals are faulty in stop status during operation without safety PLC both EDMS and EDMO are at 24 V at the same time in stopped status The triggering of the SGS and the SGO is antivalent instead of equivalent OSSD error short circuit of the the muting lamp line line short circui...

Страница 40: ...equest by the customer Fiessler Elektronik GmbH Co KG carries out the acceptance test and annual inspections In addition seminars providing customers with training in annual inspections are held at regular intervals Warranty The company Fiessler Elektronik GmbH Co KG refuses to accept any warranty claims if the device has been opened or if it has been modified Returning a unit If in the case of de...

Страница 41: ... receiver one pair AKAS LC Halt F 700 12 15 Doku Nr 757 Stand 19 05 04 AS GF Doku Nr 995 Stand 1 12 2011 Aui part designation order code AKAS Muting System w integrated overrun traverse control AMS N complete incl 2 magnetic sensors with 10m 5m cables 1 magnetic tape Muting lamp white 230V 7W AMS N K UMLW Safety double foot pedal FL2 528ZSD4 U AKAS Foot pedal for box bending function FS2 528ZSD4 U...

Страница 42: ...d Inspection Badge first inspection regular inspection maintenance contract existing cost estimate of maintenance contract requested regular inspection requested 1 Inspection machine control by type of control Muting box no detection range m AKAS no machine builder machine type 3 1 correct electric connection 3 2 cables damage free 3 3 strain relief at both sides of cable loop 3 4 cable protected ...

Страница 43: ...llowing the provisions of Directive 2006 42 EG 2004 108 EG The protection goals of the Low Vol tage Directive 2006 95 EC have been complied with in accordance of Annex I No 1 5 1 of the Machinery Directive The products are conform with the laser class 1 Modèle recommandé de déclaration de con formité conforme appendice II 1 A 2006 42 EG Nous Fiessler Elektronik Kastellstr 9 D 73734 Esslingen décla...

Страница 44: ...n occurs Before every release of the output contacts the contactor control is checking whether the switching elements connec ted relays contactors or valves have been released A renewed release of the output contacts is only possible if the switching elements connected have been released Thus a dangerous failure of switching elements relays contactors or valves caused by the hazardous motion is pr...

Страница 45: ...Notes 45 Doku Nr 986 Stand 1 12 2011 Aui FIESSLER E L E K T R O N I K ...

Страница 46: ...1 96 97 50 Email info fiessler de Internet www fiessler de Fiessler Elektronik has respresen tations in all major industrial i Proximity Laser Scanner Parametricable Saftetycontrol FPSC Press Brake Protection System AKAS AWARD OF APPRECIATION for exemplary performance in the development of the press brake protection system AKAS The award was bestowed upon Fiessler Elektronik by the mini stry of tr...

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