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Stahl SLE 3 Translation Of The Original Operating Instructions

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SLE 3_
Translation of the
original operating instructions

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  • Page 1 SLE 3_ Translation of the original operating instructions...

  • Page 2: Table Of Contents

    Residual risks ........................................... 7 Product and functional description ..................................8 Description ..........................................8 Load sensor ..........................................8 Front view..........................................9 Block diagram SLE 3......................................10 Schematic circuit diagram ....................................11 Safety functions ........................................11 3.6.1 Overload cut-off ......................11 3.6.2 Sensor errors .........................

  • Page 3: Introduction

    General information on these operating instructions These operating instructions serve as safety manual in the sense of the safety standards for functional safety of the SLE 3 electronic control unit for the manufacturer's hoists. They are aimed at the manufacturers, operators, commissioning engineers and service personnel of hoists.

  • Page 4: Symbols

    Introduction Symbols The safety instructions in the manual are subdivided according to the severity of the hazard and the likelihood of it occurring. The measures described to avoid the hazards must be followed. DANGER This symbol warns of a direct danger to the health and life of people. Disregarding these warnings will lead to severe injuries, possibly also death.

  • Page 5: Target Group

    Commissioning / Operation / Documentation ATTENTION The SLE 3 only achieves its safety function when it has been programmed accordingly. The commissioning of a hoist must be documented. This documentation must also contain the overload cut-off point. The signature of the competent person and the operator is needed after commissioning (chapter "Commissioning and testing").

  • Page 6: 1.10 Standards And Directives

    Machinery Directive 2006/42/EC and  EMC Directive 2014/30/EU The SLE 3 was built in accordance with the following valid European standards and regulations:  IEC / EN 60204-32 – "Safety of machinery – Electrical equipment of machines – Part 32: Requirements for hoisting machines"...

  • Page 7: General Safety Instructions

    General safety instructions General safety instructions DANGER You must follow the safety instructions:  National and international directives and regulations must be followed for assembly, commissioning, operation and period tests, in particular the Machinery Directive 2006/42/EC, safety rules and country-specific safety regulations. ...

  • Page 8: Product And Functional Description

    Product and functional description Description The SLE 3 is an electronic control unit for hoists. The device can be used to control pole- changing or frequency-controlled drives. It contains a safety-related overload cut-off for hoists in conjunction with a load sensor. It is a configurable system that only performs the overload protection function after parameterisation and storage of the safety-relevant parameter (overload cut-off point) in that the lifting movement is switched off safely.

  • Page 9: Front View

    Product and functional description Front view Display board S1: Selector switch motor management Signalling and S4: Setting cut-off point, rough status LEDs S2: Setting cut-off point, fine S3: DIP switch: to activate the testing bay functions, relay operation and motor man- agement S5: Enter button: e.g.

  • Page 10: Block Diagram Sle 3

    Product and functional description Block diagram SLE 3 Legend Connection terminals Supply 1: Power supply 2: Power supply reference point Actuation 3: Safety input lift S↑ 4: Safety input lower S↓ Analogue inputs ϑ ϑ Signalling relay 5: Input fast S↕↕...

  • Page 11: Schematic Circuit Diagram

     If the signal voltage between the connections IN+ and IN- exceeds the cut-off thresh- old setting while the outputs K↓ and K↓↓ are active or when stationary, the SLE 3 detects "overload" after a time of 800 ms and blocks the outputs K↑ and K↑↑ until no overload is detected any more.

  • Page 12: Sensor Errors

    Actuation of S↕↕ is only recognised if the corresponding direction S↑ or S↓ is active at the same time. If S↑ or S↓ is actuated from idle state, the SLE 3 switches the respective safety output K↑ or K↓ after a maximum delay time of 300 ms.

  • Page 13: Motor Management

    Product and functional description The safety outputs K↓ and K↓↓ are also actuated by a safe internal circuit according to Category 2 Performance Level d. This circuit switches the safety outputs K↓ and K↓↓ off in the event of an error (e.g. excessively high temperature at the hoist motor).
  • Page 14 A-xxx Frequency- controlled Motor management parameters for motors from Stahl CraneSystems and third-party motors – F = Setting for operation with a frequency inverter – In setting 8 … E, the highest setting, as in item 7, is retained. Operation with frequency inverter When working with a frequency inverter, the switch S1 is set to "F"...

  • Page 15: Operating Time Counter

    The travel motor thermistor (PTC) is connected to input 2 (if two or more travel motors, for all). When a travel motor thermistor responds, the SLE 3 switches the relay outputs left/right off and reports this via the device LED (as warning) that the travel motor(s) can no longer be actuated.

  • Page 16: Signalling Relays

    Product and functional description 3.7.6 Signalling relays CAUTION The signalling relays err and "option" are used to output error messages and may not be used for safety-relevant functions. The signalling relays may only be parameterised by an electrically skilled person. Both relays can be parameterised as normally-closed or normally-open contacts: Relay Normally-open Normally-closed...

  • Page 17: Installation

    Installation Installation Dimensions  100 x 110 x 75 mm (W x H x D) Attachment possibilities  Snap-on attachment on 35 mm top hat rail (EN 50022-35)  Screw attachment enclosure bottom (M4) using pull-out sliders Cable connection See chapter "Technical data" Cables Install sensor cables (load sensor, temperature sensor) and power lines separately of each other.

  • Page 18: Commissioning, Tests, Settings And Maintenance

    SLE 3 and that the components and units involved in the safety function work perfectly in interaction with the SLE 3. The type of use / attachment of the SLE 3 and the follow-up of the plant must al- so be tested.

  • Page 19: Change To The Cut-Off Point

     Get a test load of 110% of the maximum lifting capacity ready.  Get a load weighing the maximum lifting capacity ready.  Carefully take off the front panel (device cover) of the SLE 3 with the help of a screwdriver and put in a safe place.

  • Page 20: Activating The Testing Bay Function

    16. Set S1 back to the previously noted switch position, note the changes and confirm the settings by signing on the enclosure cover. 17. Restart the device. When the crane test is finished, put the front panel (device cover) back on to the SLE 3 to protect the electronic components against dust and foreign bodies. 06.2017...

  • Page 21: Crane Test

    The crane test can only be activated in stationary state and with no overload on the hook. The DIP switches S3 must correspond to the setting shown in the enclosure cover. Preparation: Carefully take off the front panel of the SLE 3 (transparent enclosure cover) with the help of a screwdriver. Activation procedure: The following steps must be carried out within a time of 12 seconds;...

  • Page 22: Documentation Of Changes To The Cut-Off Point

    There is a page with a table as shown above at the end of these operating instructions. This page can be taken out (or copied) and used to document changes to the settings of the SLE 3 in the test book. 06.2017...

  • Page 23: Device Or Sensor Replacement

    Wear parts ATTENTION The SLE 3 does not have any wear parts. If a device is defective, it must be replaced with an equivalent one. Here it must be ensured that the device has the following properties: ...

  • Page 24: Error And Warning Messages, Faults

    Internal tests are carried out when the power supply is switched on. The LEDs "pwr", "err", "I", "II", "III" light up during this test. The SLE 3 is ready for operation when only the LED "pwr" is still on. Symbols...
  • Page 25 Error and warning messages, faults Overload Lifting blocked  Put down the overload and reduce the load  Correct the cut-off threshold (during commissioning, with test load) Overheating 1 or Lifting and  Let the motor cool down the error state is thermistor error lowering acknowledged automatically...

  • Page 26: Warning Messages

    Error and warning messages, faults Warning messages A warning detected and indicated by the device does not lead to any restrictions in the lifting movements. The warning is indicated by three LED indicators (flashing) on the front side. A warning can lead to impairment of the travel motion. Cause Correction Crane test mode is active.

  • Page 27: Decommissioning

    Decommissioning Decommissioning The operator is responsible for decommissioning of the plant and thus of the SLE 3. Electronic components and electric and electronic scrap are special waste. Country-specific environmental laws must be obeyed when disposing of the device. The local authorities will provide relevant information.

  • Page 28: Technical Data

    Technical data Technical data Supply Voltage variants AC voltage: DC voltage: 24 V 50 / 60 Hz 24 V DC 42 V 50 / 60 Hz Residual ripple: 48 V 50 / 60 Hz ±5 % 110/120 V 50 / 60 Hz 230 V 50 / 60 Hz Voltage tolerance 90 …...
  • Page 29 Horizontal, vertical Maximum cable length Digital control signals 100 m Temperature inputs 50 m Sensor inputs (shielded) Safety parameter values per ISO 13849-1 SLE 3 Performance level 5.28 E-07 MTTFd 100 years Category Response time 850 ms Requirements for sensors: Performance level <...

  • Page 30: Rating Plates

    Rating plate for countries without UL and CSA approval requirement: Example: Rating plate for countries with UL and CSA approval requirement: [ ... ] There is currently not yet UL/CSA approval for the SLE 3. Type designation (d2) Temperature range...
  • Page 31 Annex Serial number Changes to the SLE 3 device setting – : ............ Operator's Service techni- Setting Reason for change signature cian's signature Date _______________ Device Rev._________ Date _______________ Device Rev._________ Date _______________ Device Rev._________ Date _______________ Device Rev._________ Date _______________ Device Rev._________...
  • Page 32 Annex Notes 06.2017...
  • Page 33 Die Adressen von über 100 Vertriebspartnern weltweit finden Sie im Internet auf www.stahlcranes.com unter Kontakt. You will find the addresses of over 100 sales partners on the Internet at www.stahlcranes.com under contact. STAHL CraneSystems GmbH, Daimlerstr. 6, 74653 Künzelsau, Germany Tel +49 7940 128-0, Fax +49 7940 55665, marketing.scs@stahlcranes.com...

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