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Reer ARGOLUX AU S3M2 Installation, Use And Maintenance Manual

Control unit with integrated muting function
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Table of Contents

A R G O L U X A U S3M2
WITH INTEGRATED MUTING FUNCTION
INSTALLATION, USE AND MAINTENANCE
INSTALLATION, USE AND MAINTENANCE
INDEX
INDEX
OVERVIEW ........................................................................................................... 4
APPLICATIONS............................................................................................. 4
CONTROL UNIT THEORY OF OPERATION AND STATES................................. 5
AU S3M2 FUNCTIONING DIAGRAMS......................................................... 11
CONTACT STATUS ..................................................................................... 13
LED STATUS INDICATIONS......................................................................... 14
TECHNICAL DATA .............................................................................................. 15
DIMENSIONS ..................................................................................................... 16
INSTALLATION ................................................................................................... 16
POSITIONING............................................................................................ 17
ELECTRICAL CONNECTIONS ...................................................................... 22
CHECKS AND MAINTENANCE.................................................................... 29
MALFUNCTIONS........................................................................................ 29
IDENTIFICATION LABEL ...................................................................................... 31
WARRANTY ........................................................................................................ 31
CONTROL UNIT

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Summary of Contents for Reer ARGOLUX AU S3M2

  • Page 1: Table Of Contents

    A R G O L U X A U S3M2 CONTROL UNIT WITH INTEGRATED MUTING FUNCTION INSTALLATION, USE AND MAINTENANCE INSTALLATION, USE AND MAINTENANCE INDEX INDEX OVERVIEW ......................4 APPLICATIONS..................... 4 CONTROL UNIT THEORY OF OPERATION AND STATES......... 5 AU S3M2 FUNCTIONING DIAGRAMS............11 CONTACT STATUS ..................
  • Page 3 The informations and the remarks given in this instruction manual The informations and the remarks given in this instruction manual may be subject to change due to further development of the may be subject to change due to further development of the Argolux AS System.

  • Page 4: Overview

    OVERVIEW The AU S3M2 control unit is a complete system for control of type 2 electro-sensitive safety equipment (ESPE) in compliance with the European standard prEN 50100 project for accident prevention on hazardous machines and plants. When correctly connected to a safety barrier or to a safety device that performs the sensing function, the AU S3M2 control unit checks safe functioning of the sensing device by sending a test signal and assessing its reply time.

  • Page 5: Control Unit Theory Of Operation And States

    CONTROL UNIT THEORY OF OPERATION AND STATES CONTROL UNIT THEORY OF OPERATION AND STATES Test function. Test function. A type 2 safety system maintains its protective function by checking correct response to an external test command. The system must stop if the test detects a fault that could impair safety.
  • Page 6 Muting function. Muting function. The muting function (temporary bypassing of the light barrier) is indispensable when transit of material to the danger area through the access protected by the light barrier must not cause stoppage of the machine and consequent restart preceded by the test command. According to safety regulations, the muting function can be activated only if two signals are present, at least one of which must be of the hardware type, i.e.
  • Page 7 Relay output PNP static output Output voltage N.A. contact Material sensed HIGH (Beam occupied) Material not sensed (Raggio libero) Table 1 Muting sensors output. Using photoelectric sensors, this condition is assured using the crossed beam technique. An example in which two photoelectric reflex switches are used as muting sensors is shown in figure 1 below.
  • Page 8 Figure 2 Positioning of the muting sensors. The position at which the two muting beams intercept each The position at which the two muting beams intercept each other must be beyond the barrier in the danger area. other must be beyond the barrier in the danger area. To de-activate the muting function and therefore restore guard status, the AU S3M2 control unit must detect not only switching of at least one sensor but also previous occupation and freeing of the light barrier.
  • Page 9 In some applications, sensor 3, if correctly positioned, also creates an additional protective barrier in that if sensor 3 is not engaged correctly, the control unit causes immediate stopping of the machine (fig. 4). Figure 4 Positioning of sensor 3 in a typical application. The muting cycle ends successfully if, once sensor 3 has been freed, all the elements have switched according to the correct muting sequence.
  • Page 10 Figure 6 shows the correct muting sequence and highlights how the muting cycle differs according to whether 2 or 3 sensors are used. Note: The signals represent the voltage logical levels at the inputs of the control unit. Note: TS1S2 is the time between detection of the material in transit by sensor 1 (or 2) and detection by TS1S2 sensor 2 (or 1 ).

  • Page 11: Au S3M2 Functioning Diagrams

    Muting override. Muting override. If the machine stops with the material in the area controlled by the light barrier, an emergenc emergency operation is required to restart the system in that the test cannot be performed. Using the override function, the AU S3M2 control unit enables temporary energization of its internal relays A and B, thus permitting controlled starting of the system by an authorized operator.
  • Page 12 Muting function. Muting function. Override function. Override function.

  • Page 13: Contact Status

    CONTACT STATUS CONTACT STATUS (ref.: Electrical connections page 22) (ref.: Electrical connections page 22) AU S3M2 control unit status GUARD CLEAR BREAK FAIL FAIL (FAIL K1-K2) area area area free area free Barrier occupied occupied output 14-19 AU S3M2 15-18 output 16-17 Self-diagnosis output...

  • Page 14: Led Status Indications

    LED STATUS INDICATIONS LED STATUS INDICATIONS LED N° LED N° COLOUR COLOUR STATE STATE INDICATIONS INDICATIONS AU S3M2 STATUS AU S3M2 STATUS Barrier free, Green GUARD AU S3M2 output relays energized Barrier free, Yellow CLEAR AU S3M2 output relays de-energized Barrier occupied, BREAK AU S3M2 output relays de-energized...

  • Page 15: Technical Data

    TECHNICAL DATA Power supply 24 ± 20% Power consumption 2 N.O. contacts 2A 125Vac Output relays (*) 1N.C. contact 2A 125Vac 1 N.O. contact 0,5A 25Vac - 60Vdc Self-test output contact open in case of unusual operation DARK ON Muting sensors Relay output 1 N.O.

  • Page 16: Dimensions

    DIMENSIONS (measurements in mm) INSTALLATION The AU S3M2 control unit used with the ARGOLUX AS series safety barriers is a type 2 electro-sensitive protection system. As envisaged by the prEN 50100 standard project, in a type 2 safety device, faults or malfunctions must be detected during the test phase. Before installing the ARGOLUX AS series safety system, make sure that: the danger level of the machine is such as to permit use of the danger level of the machine is such as to permit use of...

  • Page 17: Positioning

    The test control must be located outside the danger area and in such a way as to assure unobstructed visibility of the operating area. Before installing the ARGOLUX AS series safety system, also check that: • The machine can be controlled electrically. •...
  • Page 18 Referring to European standard prEN999 project, the minimum safety distance S must be calculated using the following formula: S = K(t1 + t2) = C S = K(t1 + t2) = C where: S S is the minimum safety distance in millimeters. K K is the penetration velocity of the body in the danger area in millimeters per second.
  • Page 19 • the area delimited by the points of interception and freeing of the beams of sensors 1 and 2 by the pallet must be as small as possible (or be suitably protected) so as to avoid accidental passing through the light barrier with muting activated (fig. 9). Figure 9 Keep the dimensions of the muting activation and de-activation areas as small as possible.
  • Page 20 Sloping of the beam is recommended when the pallet has empty areas to the side so that detection of the pallet by sensor 3 may not be continuous. However, in some applications, sensor 3 must be rotated on a plane parallel to the ground.
  • Page 21 As foreseen by the correct muting sequence, occupation and subsequent freeing of sensor 3 determines the end of the muting cycle. Each time sensor 3 is involved other than in the way envisaged, fail muting status is generated. For this reason: muting sensor 3 cannot be used in bi-directional systems in muting sensor 3 cannot be used in bi-directional systems in which the pallet enters and leaves the danger area through a...

  • Page 22: Electrical Connections

    External muting indicator. External muting indicator. According to safety regulations, activation of the muting function must be highlighted by switching on of an external indicator; this is therefore mandatary. The indicator device should be positioned in the immediate vicinity of the access point to be protected by the light barrier so that it is clearly visible and unmistakably associated with the light barrier to which it refers.
  • Page 23 Minimum switching voltage 15 Vdc Minimum switching current 20mA Maximum switched voltage 125Vac Maximum switched current NOTE: Protect the contacts with fuse 2A/250V, Ø 5x20mm o Ø 6,3x32mm Table 2 Internal relays A and B electrical features. • The auxiliary relays or contacts K1 and K2 must be of the guided contact safety type.
  • Page 24 • The closing of the contact used to send the test command must not be less than 10ms. This value is particularly important when sending of the test command is to be managed automatically, for example using a PLC. • System reset from the start of a test cycle takes place within 150ms.
  • Page 25 Figure 14 Parallel connection of proximity type muting sensors. Type A connection diagram. Type A connection diagram.
  • Page 26 Type B connection diagram: Type B connection diagram: use of relays or external safety contactors K1 and K2. use of relays or external safety contactors K1 and K2.
  • Page 27 Connection to muting sensors with relay output: use of sensor 3. Connection to muting sensors with relay output: use of sensor 3. Connection to muting sensors with relay output: sensor 3 bypassed. Connection to muting sensors with relay output: sensor 3 bypassed.
  • Page 28 Connection to muting sensors with PNP static output: use of sensor 3. Connection to muting sensors with PNP static output: use of sensor 3. Connection to muting sensors with PNP static output: sensor 3 bypassed. Connection to muting sensors with PNP static output: sensor 3 bypassed.

  • Page 29: Checks And Maintenance

    CHECKS AND MAINTENANCE CHECKS AND MAINTENANCE Before the start of each shift or at power-on, check that the light barrier and muting sensors are working correctly. To do this, follow the procedure described in the light barrier installation handbook which includes occupation of the area controlled by the light barrier by the test object.
  • Page 30 • check that the external relays or contact blocks are used correctly and with suitable anti-disturbance modules indicated by the manufacturer; • check the fuse of the control unit for any damage and if necessary replace it following the instructions given in fig. 15 (use a 1A/250V Ø...

  • Page 31: Identification Label

    Serial number Week of production WARRANTY REER warrants that each brand new ARGOLUX AS series system is free of defects in the material and workmanship for a period of 12 (twelve) months. In this period, REER undertakes to eliminate any faults in the product, repairing or replacing the fault parts free of charge both as regards material and labor.
  • Page 32 Other causes beyond the control of REER. – The repairs are made at REER laboratories to which the material must be delivered or dispatched: transport expenses, the risks of any damage or loss of the material during dispatch are the responsibility of the user.

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