Eaton ESR5-BWS-31-24VDC Manual
Eaton ESR5-BWS-31-24VDC Manual

Eaton ESR5-BWS-31-24VDC Manual

Safety relays for emergency stop, protective door and light grid monitoring
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Manual
11/23 MN049020EN
ESR5-BWS-31-24VDC
Safety relays for emergency stop, protective door and light grid
monitoring

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Summary of Contents for Eaton ESR5-BWS-31-24VDC

  • Page 1 Manual 11/23 MN049020EN ESR5-BWS-31-24VDC Safety relays for emergency stop, protective door and light grid monitoring...
  • Page 2 All editions of this document other than those in German language are trans- lations of the original operating manual. 1. Edition 2023, publication date 11/23 See change log in chapter "About this manual“ © 2023 by Eaton Industries GmbH, 53105 Bonn Translation: GlobalDoc Editors: Antje Nonnen All rights, including those of translation, reserved.
  • Page 3 Danger! Dangerous electrical voltage! Before commencing the installation • Disconnect the power supply of the device. • Ensure a reliable electrical isolation of the low voltage for the 24 volt supply. Only use power supply units complying • Ensure that devices cannot be accidentally restarted. with IEC 60 364-4-41 (VDE 0 100 Part 410) or HD 384.4.41 S2.
  • Page 4: Table Of Contents

    Prerequisites for proper operation ........... 20 Device-specific hazards............21 2.3.1 Direct/indirect contact.............. 21 2.3.2 Power supply units for 24 V supply ......... 21 2.3.3 Mismatching and polarity reversal of connections....21 In operation ................22 Defective devices ..............22 ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 5 Two-channel protective door monitoring without shunted connection recognition, with monitored Reset pushbutton ....... 36 Appendix................. 37 Data sheet and ordering data ........... 37 Technical specifications ............37 Interface type (ZVEI classification) ........... 42 Glossary .................. 45 ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 6: About This Manual

    This manual contains all the information you will need in order to use the ESR5-BWS-31-24VDC safely and effectively. The ESR5-BWS-31-24VDC manual is considered an integral part of the device and must always be readily available in the device's close proximity so that users have access to it.
  • Page 7: Target Group

    For further information, see the applicable documentation: • IL049016ZU • Safety relay data sheet ESR5-BWS-31-24VDC, article no. 401064 ATTENTION Make sure to always use the latest documentation for your → device. The latest edition of this documentation and the applica- ble documents can be found on the Internet at Eaton.com/esr5.
  • Page 8: Abbreviations And Symbols

    WARNING  Warns of the possibility of hazardous situations that could result in serious injury or even death. Hazard warnings of material damages ATTENTION Warns about the possibility of material damage. Tips → Indicates useful tips. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 9: Description Esr5-Bws-31-24Vdc

    Any other use must be discussed and agreed upon with the manufacturer in advance. The ESR5-BWS-31-24VDC is approved for use in control cabinets or enclo- sures with a minimum degree of protection of IP54.. The ESR5-BWS-31-24VDC must be used only in locations for which the device is approved.
  • Page 10: Actuation

    Category 4, PL e (EN ISO 13849-1), SIL 3 (EN IEC 62061) → Section 5, "Application examples", page33 1.6 Other Features • Plug-in screw terminals • 22.5 mm housing width 1.7 Approvals Product Safety Functional Safety ID 0600000000 ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 11: Operator Control And Display Elements

    S11, S12, S22 – input circuits j S33, S34, S35 – starting circuit (activation circuit) → The device's year of manufacture can be found underneath the CE marking on the housing. XX/XX = calendar week / year ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 12: Function Description

    When the sensor circuit is opened, enable current paths S13/14, 23/2, and 33/34 will be opened without delay. When the enable current paths are open, the device will be in a safe state. The signal current path closes. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 13: Function And Time Diagrams

    Time diagram automatic start A1/A2 S33/S35 13/14, 23/24, 33/34 41/42 A1/A2 S33/S35 13/14, 23/24, 33/34 41/42 Figure 2: Time diagram automatic start Time diagram manual start A1/A2 S33/S34 13/14 41/42 Figure 3: Time diagram manual start ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 14 1 Description ESR5-BWS-31-24VDC Time diagram manual, monitored start with fault scenario A1/A2 S33/S34 13/14 41/42 Figure 4: Time diagram manual, monitored start with fault scenario ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 15: Heat Dissipation Calculation

    ² / (U ) + (I + … + I ) x 200 mΩ Total Heat dissipation in mW Applied operating voltage Input rated voltage Input current Number of enable current paths used Contact load current ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 16: Block Diagram

    (e.g., with greater clearances and creepage distances for the conductors). Accordingly, mixing ≤ ≤ SELV circuits with V 25 VAC or V 60 VDC and circuits with a higher voltage is possible. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 17: Derating

    Make sure to observe the corresponding device-specific specifi- cations (technical data, derating, etc.). The use of the device ESR5-BWS-31-24VDC at altitudes higher than 2000 m above sea leveland up to a maximum of 4500 mabove sea level is allowed provided that:...
  • Page 18: Load Curve - Resistive Load

    49 °C [°C] Figure 8: Example: Shifted derating curve (blue) at altitude of 3000 m above sea level 1.14 Load curve – resistive load 1000 I [A] Figure 9: Load curve of the relay – resistive load ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 19: Electrical Lifespan

    1 Description ESR5-BWS-31-24VDC 1.15 Electrical lifespan Figure 10: Number of switching cycles Figure 11: Number of switching cycles AC-1 DC-1 Figure 12: Number of switching cycles Figure 13: Number of switching cycles AC-15 DC-13 ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 20: Safety Regulations

    Repairs to the device, especially those involving opening the housing, must be carried out exclusively by the manufacturer or by a person authorized by the manufacturer to do so. Failure to observe this requirement will void any and all warranties! ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 21 If necessary, corresponding measures must be taken. ATTENTION Follow the safety instructions for the ESR5-BWS-31-24VDC! The section on safety instructions must be read and understood by everyone who will be working with the ESR5-BWS-31- 24VDC before the actual work is performed Safety relays for emergency stop, protective door and light grid monitoring.
  • Page 22: Mandatory Requirements, Personnel Requirements

    2.2.3 Device documentation This manual is considered an integral part of the ESR5-BWS-31-24VDC and must always be readily available in the device's close proximity so that users have access to it.
  • Page 23: Installation, Maintenance, And Disposal

    Make sure that the device is connected, installed, serviced, and disposed of professionally and in line with all relevant standards and safety rules. CAUTION Installation requires qualified electrician  A ESR5-BWS-31-24VDC may only be fitted and connected by a qualified electrician or a person who is familiar with electrical installations. →...
  • Page 24: Device-Specific Hazards

    Make sure that the output voltage of the power supply does not exceed 24 VDC -15%/+10% even in the event of a fault. 2.3.3 Mismatching and polarity reversal of connections ▶ Take measures to prevent mismatching, polarity reversal, and manipula- tion of connections. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 25: In Operation

    The devices may be damaged after a fault, in which case they are considered faulty. Proper operation can no longer be guaranteed in this case. ▶ Replace the ESR5-BWS-31-24VDC without fail after the first fault! CAUTION  DESTRUCTION Repairs to the device, especially those involving opening the housing, must be carried out exclusively by the manufacturer.
  • Page 26: Ensuring The Safety Of Machinery Or Equipment

    In order to be able to achieve the desired safety level for the entire machine or system, define the safety requirements for the machine or sys- tem and how they need to be implemented technically and organizationally. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 27: Installation

    3 Installation 3 Installation CAUTION Installation requires qualified electrician  A ESR5-BWS-31-24VDC may only be fitted and connected by a qualified electrician or a person who is familiar with electrical installations. WARNING  Danger due to electric voltage! All installation work must be carried out with the entire installa- tion in a de-energized state.
  • Page 28: Prerequisites For The Location Of Use

    Make sure to also keep the document IL049016ZU and/or to give them to the end customer. Missing parts or damage If you notice anything wrong, please contact your distributor or Eaton Service +1 877-386-2273 (en) / 877-ETN-CARE (877-386-2273). 3.3 Mounting and disassembly ▶...
  • Page 29: Connection

    Safety sensor circuit status display: LED (green) Safety sensor circuit status display: LED (green) 13/14 Enable current path, non-delayed 1 23/24 Enable current path, non-delayed 2 33/34 Enable current path, non-delayed 3 41/42 Signal current path, non-delayed ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 30: Wiring Topic

    Connect the sensor circuit as per the wiring to S11/S12/S22. Automatic start → The signal current path 41/42 opens. → The enable current paths 13/14, 23/24 and 33/34 close. → The K1 and K2 LEDs are lit. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 31: Terminal Models Signal Encoder

    ① ② ③ ④ Figure 17: Connection options Start and feedback circuit a Automatic start b Manual start with monitored contact expansion module c Manual, monitored start with monitored contact expansion module d Manual, monitored start ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 32: Maintenance

    Check whether the safety function runs correctly  ▶ by switching the device back on with the sensor circuits. If the ESR5-BWS-31-24VDC does not switch back on, the device has failed the proof test. The device is considered defective. → Section 2.5, "Defective devices", page22 WARNING...
  • Page 33: Storage And Transport

    • Use the same device type • Use the same or a higher hardware/firmware version. CAUTION  DESTRUCTION Repairs to the device, especially those involving opening the housing, must be carried out exclusively by the manufacturer. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 34: Diagnostics

    (function test). and K2) does not pick up Internal error: If the error occurs again after the 1. the diagnostic contact is not working function test, please replace the correctly. device. 2. one NO contact is welded. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 35 Internal error: Diagnostics active. Perform a power-down reset followed by a function test. If the error occurs again after the function test, replace the device. Legend: ○ – LED off, ● – LED on ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 36: Application Examples

    Contactor K4 is not absolutely necessary to achieve Category 1. 24 V DC Lichtgitter Typ 4 Empfänger 24 V OSSD1 OSSD2 ESR5-BWS-31-24VDC S33 S34 Figure 18: Dual-channel light grid monitoring Reset S2 - manual reset device K3, K4 - interlocked opposing contactors ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 37: Single-Channel Emergency Stop Monitoring Without Shunted Connection Recognition, With Monitored Reset Pushbutton

    ( ) ( ) S33 S34 S35 ③ ② Figure 19: Single-channel EMERGENCY STOP monitoring / manual activation a S1 – EMERGENCY-STOP pushbutton b S2 – manual reset device c K3, K4 - interlocked opposing contactors ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 38: Single-Channel Emergency Stop Monitoring

    Suitable up to category 1, PL c (EN ISO 13849-1), SIL 1 (EN IEC 62061) 24V DC ① ESR5-BWS-31-24VDC ② ③ Figure 20: Single-channel EMERGENCY STOP monitoring with monitored Reset pushbut- a S1 – EMERGENCY-STOP pushbutton b S2 – manual reset device c K3, K4 - interlocked opposing contactors ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 39: Two-Channel Protective Door Monitoring Without Shunted Connection Recognition, With Monitored Reset Pushbutton

    24V DC ① ESR5-BWS-31-24VDC ② ③ Figure 21: Two-channel protective door monitoring without shunted connection recognition a B1/B2 – mechanical protective door switches b S2 – manual reset device c K3, K4 - interlocked opposing contactors ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 40: Appendix

    Supply data Conductor cross-section, rigid 0.2 mm - 2.5 mm Conductor cross-section, flexible 0.2 mm - 2.5 mm Conductor cross section, AWG/kcmil 24 - 12 Strip length 7 mm Screw thread Tightening torque 0.5 Nm ..0.6 Nm ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 41 S34/35, Δt = 70 ms) Current consumption 0 mA (normally with U at S34) 1 mA (normally with U at S35) Filter time No test pulses allowed Maximum permissible total cable resistance 50 Ω Simultaneity Suppressor circuit Suppressor diode ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 42 + ... + I Switch capacity min. 100 mW Switching Frequency max. 0.5 Hz Lifespan, mechanical 10x 10 switching operations Switching capacity, to IEC 60947-5-1 1.5 A (AC15) 2 A (DC13) Output fuse 6 A gL/gG ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 43 Pollution degree Overvoltage category Maximum power loss at nominal condition 16.44 W (at U = 26.4 V, I ² = 72 A²; =2.04 W+14.4 W) Total max Note on heat dissipation See chapter "Heat dissipation calculation" ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 44 ≦ 2000 m (above sea level) Notes on applicable height See section "Use at altitudes greater than 2000 m above sea level" Impact resistance 15 g Vibration (operation) 10 Hz - 150 Hz, amplitude 0.15 mm, 2 g ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 45 240 months For applications with PL e, a demand mode for the safety function of once per month is required. Technical safety parameters for EN IEC 62061 1 (up to SIL 3 – depending on the application) ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 46: Interface Type (Zvei Classification)

    Test pulse interval T Input resistance R 3.9 kΩ 10.7 kΩ Input capacity C Inductive load L Additional measure M The inputs are not types according to IEC 61131-2. Switch-on pulses should be switched off for safety applications. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 47 Rated operational current I Load capacity C See switching capacity Inductive load L See switching capacity Additional measure M The inputs are not types according to IEC 61131-2. No test pulses are output at the output. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 48 Rated operational current I Load capacity C See switching capacity Inductive load L See switching capacity Additional measure M The inputs are not types according to IEC 61131-2. No test pulses are output at the output. ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 49: Glossary

    SRCF Safety-Related Control Function Safety-related control function SRECS Safety-Related Electrical Control System Safety related electrical, electronic, programmable electronic control system Safety-Related Part Safety-related part SRP/CS Safety-Related Parts of Control System Safety-related part of a control system ESR5-BWS-31-24VDC 11/23 MN049020EN Eaton.com...
  • Page 50 Founded in 1911, Eaton has been listed on the NYSE for nearly a century. We reported revenues of $20.8 billion in 2022 and serve customers in more than 170 countries.

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