Leuze electronic TMC 66 Connecting And Operating Instructions
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Leuze electronic TMC 66 Connecting And Operating Instructions

Test monitoring unit with integrated muting controller
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TMC 66
Test Monitoring Unit with integrated muting controller
C O N N E C T I N G A N D O P E R A T I N G I N S T R U C T I O N S
O r i g i n a l I n s t r u c t i o n s

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Summary of Contents for Leuze electronic TMC 66

  • Page 1 TMC 66 Test Monitoring Unit with integrated muting controller C O N N E C T I N G A N D O P E R A T I N G I N S T R U C T I O N S...
  • Page 2 Notes on Connecting and Operating Instructions This connecting and operating instructions manual contains information on the proper use of the test monitoring unit with integrated muting controller TMC 66 in accordance with its intended purpose. All the information contained herein, in particular the safety notes, need to be carefully observed.

  • Page 3: Table Of Contents

    Starting the unit when the single beam safety light barrier is interrupted......36 5.12 Operating Conditions without Muting Function ..............37 5.13 TMC 66 without muting function, with start- and restart interlock ........38 5.14 Modes with muting function....................40 Leuze electronic...
  • Page 4 Inhaltsverzeichnis Error Messages on the TMC 66 ..................46 Technical Data........................48 Appendix........................... 50 Wiring diagram with Single Beam Safety Light Barrier and PLC as muting sender... 50 Remaining risks (EN ISO 12100-1)..................50 TMC 66 Leuze electronic...

  • Page 5: General Information

    The test monitoring unit with integrated muting controller TMC 66 has been manufactured observing current European directives and international standards. The manufacturer of the test monitoring unit TMC 66, Leuze electronic GmbH+Co. KG in D-73277 Owen/Teck, possesses a certified quality assurance system in accordance with ISO 9001.

  • Page 6: Selection Of Active Opto-Electronic Protective Devices

    4. Calculation of the safety distance Determination of the protected area Through risk calculation, the following has to be observed: • the size of the protective field • the access points • the hazardous areas • Bypassing possibilities TMC 66 Leuze electronic...
  • Page 7 Access to the hazardous area is protected. Presence detection: A hazardous area which is completely surrounded by permanently installed protective devices is monitored for presence of objects or access protection and pres- ence detection are combined. Leuze electronic TMC 66...

  • Page 8: Safety

    EN 62061). The result of the risk assessment determines the required safety level of the Test Monitoring Unit (see Tabelle 2.1-1). For mounting, operating and testing, document "TMC 66 Test Monitoring Units with integrated muting controller" as well as all applicable national and international standards, regulations, rules and directives must be observed.
  • Page 9 Safety Listed in the following table are the safety-related characteristic parameters of the TMC 66 Test Monitoring Units with integrated muting controller. Type in accordance with IEC/ Type 2 EN 61496 Performance Level (PL) in ac- PL d cordance with ISO 13849-1:...

  • Page 10: Foreseeable Misuse

    In addition to the power supply, these must be switched off and safeguarded against being switched back on prior to all work on the TMC 66. • These operating instructions must be included with the documentation of the machine on which the protective device is installed so that they are available to the operator at all times.

  • Page 11: Exemption Of Liability

    • changes are made to the Test Monitoring Unit Fields of Application The test monitoring unit TMC 66 may be used as isolating protective device for safeguar- ding of hazardous areas on power driven machines. The following areas of application are thus possible (excerpt): •...

  • Page 12: Function And Commissioning

    Fig. 3.1-1: Architecture of the TMC safety system After switching on of the TMC 66 via the start input, the function of the connected single beam safety light barriers or the integrated muting controller is cyclically monitored every 2 sec.

  • Page 13: Display And Operating Instruments

    Function and Commissioning Display and Operating Instruments Inside the test monitoring unit TMC 66, LEDs and a 7-segment display for the system state are integrated. The selection switch of the start- and restart interlock as well as the contactor monitoring are also located on the front panel under the transparent front screen.
  • Page 14 The reset button can be activated through the hole in the transparent front screen. In case of a failure, the device can be reset, the self-containing mode activated, and the switch positions can be programmed by using the reset-button. TMC 66 Leuze electronic...

  • Page 15: Mounting Of The Safety System

    Mounting of the Safety System Mounting of the Safety System Mounting of the Test Monitoring Unit TMC 66 The TMC 66 has been designed for mounting on a standard rail (snap-on) in a suitable switching cabinet. Note! The mounting instructions in this chapter have to be heeded for fault-free functioning of the whole safety system.
  • Page 16 A machine with a system response time of 500 ms has to be equipped with a two-beam safeguarding. The response time of the two-beam AOPD and the test monitoring unit TMC 66 is 20 ms. Application of the formula: S = K * T + C...

  • Page 17: Multi-Axis Installation

    • Environmental conditions such as steams and dust-containing air heavily limit the operating range. • When installing deflection mirrors it has to be observed that the optical axis of the photo electric sensor runs centered to the mirror. Leuze electronic TMC 66...
  • Page 18 The photo electric sensor has to be mounted with a minimum lateral distance to the reflecting surface. This distance results from the opening angle (±4°) and the distance between transmitter and receiver. reflecting surface Correct Wrong Fig. 4.2-4: Reflection bypass TMC 66 Leuze electronic...

  • Page 19: Muting Basics

    Fig. 4.2-5: Muting Basics The TMC 66 has two muting preparation signals Control 1 and Control 2, as well as two muting signals Start 1 and Start 2 for the muting function. Note! The TMC 66 is equipped with a direction detection to avoid manipulation. The inputs Start 1 and Start 2 have to be activated in the correct order.
  • Page 20 * maximum response time 240 ms Fig. 4.2-6: Signal flows during muting First, the two control signals on the TMC 66 are activated by the control unit. Note that the control signals must originate from different signal sources. In the example above, the Control 1 signal comes from the PLC, the Control 2 signal has to be deduced from the pallet transport (contactor or NC drive).
  • Page 21 Switching on of Start 2 • activation of Start 2 (signal change from Low to High) As soon as the TMC 66 detects one of the mentioned signal changes, the suppression of the single beam safety light barrier signals is immediately removed.
  • Page 22 5 ms Muting test Muting Muting Muting Muting of the sensors test prepared active internal selectable time period min. 10 ms * maximum response time 240 ms Fig. 4.2-8: End of muting through switching-off of Control 1 TMC 66 Leuze electronic...
  • Page 23 Muting test Muting Muting Muting Muting of the sensors prepared active test selectable time internal period min. 10 ms * maximum response time 240 ms Fig. 4.2-9: End of muting through switching-off of Control 2 Leuze electronic TMC 66...
  • Page 24 • Signal "Start 2 IN" on HIGH - potential After that the muting can be restarted through activation of the two control signals. Basic state Muting prepara- Motor tion contactor Test Start 1 and Start2 internal test Muting Muting active active Fig. 4.2-10:New muting TMC 66 Leuze electronic...

  • Page 25: Electrical Installation

    Within the operating modes with/without start- and restart interlock, the start input works in two possible ways: • In the operating mode with start- and restart interlock, the TMC 66 expects two signal changes (push-button function) as switch-on signal. A failure in the start button, e.g. due to contact malfunction is safely detected by the TMC 66.
  • Page 26 As soon as a HIGH active signal is present at the start input and the protective field is free, the safety outputs are closed. Fig. 5.2-2: Wiring of the start input without start- and restart interlock TMC 66 Leuze electronic...

  • Page 27: Wiring Of Single-Beam Single Beam Safety Light Barriers

    The activation input of the single beam safety light barrier can be directly connected to terminal 1 on the TMC 66. The switching output of the receiver can be directly connected to terminal 2. The GND potential present on terminal 12 serves as reference potential for both signals.

  • Page 28: Wiring Of Single Beam Safety Light Barrier In Series Connection

    The feed-back to the TMC 66 (terminal 2) is done by the last photo electric sensor receiver within the series connection. Any time the light axis is interrupted, a message is issued to the TMC 66 through the series connection.

  • Page 29: Wiring Control Signals

    Control 1 (terminal 13) and Control 2 (terminal 14). Control 1 and Control 2 are HIGH active. The control signals can be connected to the TMC 66 in any order. The test of the muting sensors is performed as soon as both signals are connected. The control signals have to be generated by two different signal sources.

  • Page 30: Wiring Of The Muting Signals Start 1 And Start 2

    • One light signal: Terminals 15 and 16 of the TMC 66 can also be connected in a parallel way. An error message is generated if the lamp is defect. No muting state can be obtained until the lamp is replaced.
  • Page 31 PLC. The PLC is programmed to react on the test request of the TMC 66. The test of the PLC inputs and outputs is induced before every muting procedure while connecting the control signals.

  • Page 32: Wiring Safety Output

    For this purpose, forced contactors have to be used. In the connection diagram, no fuses are included. However, for correct function those are absolutely required. The maximum contact load of the safety relay outputs is 4 A with 24V DC. TMC 66 Leuze electronic...

  • Page 33: Wiring Of The Signal Outputs

    Control of the motor contactors happens via K1 and K2. If a contact of K1 or K2 should weld, a message is issued to the TMC 66 through the feedback circuit. A new start of the unit is possible only after removal of the failure in the output circuit.
  • Page 34 Electrical Installation The signal output "Error" is always active if the TMC 66 detects an error. Those errors can be internal or external. A detailed listing of all possible errors can be found in the next chapter. Through linking of the status outputs in the control unit, the following system states can be detected: 1.

  • Page 35: Selecting Of The Operating Mode

    Start- and restart interlock active, contactor monitoring inactive Switch 1 Switch 2 Fig. 5.10-2: Adjustment of the operating mode (start- and restart interlock inactive, contactor monitoring inactive) The function of the contactor monitoring can be switched-off on the right switch (switch 2). Leuze electronic TMC 66...

  • Page 36: Starting The Unit When The Single Beam Safety Light Barrier Is Interrupted

    Starting the unit when the single beam safety light barrier is interrupted The test monitoring unit TMC 66 can be released also in cases where e.g. after an emergency stop of the unit the single beam safety light barrier stays interrupted by remaining goods on the conveyor belt.

  • Page 37: Operating Conditions Without Muting Function

    In principle, the test monitoring unit can be used in two operating modes; with and without muting function. TMC 66 without muting function, without start- and restart interlock Waiting mode In the waiting mode the single beam safety light barrier is free (green LED).

  • Page 38: Tmc 66 Without Muting Function, With Start- And Restart Interlock

    Barrier Fig. 5.12-2: Protection mode 5.13 TMC 66 without muting function, with start- and restart interlock Waiting mode In the waiting mode the single beam safety light barrier is free (green LED). Activation is not used. The safety output is open. This state is displayed by the red LED. The yellow LED displays the lock of the start- restart interlock.
  • Page 39 To induce the test operation, the start input is activated (green LED). As long as the start button is pressed, the TMC 66 remains in test operation. After release of the start button, the TMC 66 changes from test operation to protection mode.

  • Page 40: Modes With Muting Function

    The restart interlock inside the TMC 66 becomes active and avoids an automatic restart of the machine. The yellow LED displays the function of the restart interlock. The TMC 66 is in waiting state and can be restarted by pressing the start button after the protective field is free.
  • Page 41 7-segment display. The muting light signals are also tested. If an error occurrs on the light signals, this is also displayed. Protective photo Hazardous area electric sensor Start 1 Start 2 Fig. 5.14-1: Muting phase 1 Leuze electronic TMC 66...
  • Page 42 The 7-segment display changes from "23" to "33". Through this is displayed that the safety outputs are closed although the single beam safety light barrier is interrupted. Protective photo Hazardous area electric sensor Start 1 Start 2 Fig. 5.14-3: Muting phase 3 TMC 66 Leuze electronic...
  • Page 43 The indicator diode for "Start 1" lights up, the LEDs for "Control 1" and "Control 2" remain active. The 7-segment display changes from "34" to "35". Protective photo Hazardous area electric sensor Start 1 Start 2 Fig. 5.14-5: Muting phase 5 Leuze electronic TMC 66...
  • Page 44 The indicator diode for "Start 2" lights up, the LEDs for "Control 1" and "Control 2" remain active. The 7-segment display changes from "25" to "26". Protective photo Hazardous area electric sensor Start 1 Start 2 Fig. 5.14-7: Muting phase 7 TMC 66 Leuze electronic...
  • Page 45 The indicator diodes for "Control 1" and "Control 2" go off. The 7-segment display changes from "26" to "21". A new muting cycle can be started by activating the control signals. Protective photo Hazardous area electric sensor Start 1 Start 2 Fig. 5.14-8: Muting phase 8 Leuze electronic TMC 66...

  • Page 46: Error Messages On The Tmc 66

    Error Messages on the TMC 66 Error Messages on the TMC 66 The test monitoring unit TMC 66 displays errors in two ways. Errors which occurr on the connected signals are displayed by flashing of the LED assigned to the input. The flashing is switched off as soon as the error is removed.
  • Page 47 Error Messages on the TMC 66 Display Error description Error handling Internal failure (RAM internal device failure test) • replace device Internal failure (ROM internal device failure test) • replace device Internal failure (SW1) internal device failure • replace device Internal failure (SW2) internal device failure •...

  • Page 48: Technical Data

    Electrical data Operating voltage U 24V DC +/-15% Residual ripple < 15% Current consumption approx. 200 mA Response time < 20 ms Delay before start-up approx. 2 s Sensors Transmitter activation PNP (HIGH active) TMC 66 Leuze electronic...
  • Page 49 Polycarbonate, cover ABS/v-o grey Connection Screw terminals, max. connection cross-section 2x 2.5 mm acc. to DIN 46288 Mounting Snap-on mounting for standard rail Weight approx. 200 g Dimensions (WxHxD) 100 mm x 78 mm x 114 mm Leuze electronic TMC 66...

  • Page 50: Appendix

    • the user did not comply with the current safety regulations for operation, adjustment and maintenance of the machine. Strict compliance with the intervals for checking and maintenance of the machine is mandatory. TMC 66 Leuze electronic...
  • Page 51 Appendix You can also download this EC Declaration of Conformity from the Internet under: http://www.leuze.com/interfaces Leuze electronic TMC 66...

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