PNOZ s50 Safety relays Operating Manual1002194EN02
Preface This document is a translation of the original document. All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made for internal purposes. Suggestions and comments for improving this documentation will be gratefully received. Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®, SafetyEYE®, SafetyNET p®, the spirit of safety® are registered and protected trademarks of Pilz GmbH & Co. KG in some countries.
Content Section 1 Introduction 1.1 Validity of documentation 1.1.1 Retaining the documentation 1.2 Definition of symbols 5 5 5 5 Section 2 Overview 2.1 Unit structure 2.1.1 Scope of supply 2.1.2 Unit features 2.2 Front/side view 7 7 7 7 9 Section 3 Safety 3.1 3.2 3.2.1 3.2.2 3.2.3 10 10 12 12 12 12 Intended use Safety regulations Use of qualified personnel Warranty and liability Disposal Section 4 Function description 4.1 Introduction 4.2 Functions 4.2.
Content 6.1.7 6.1.8 6.2 6.2.1 6.2.2 6.2.3 6.2.4 6.2.4.1 6.2.5 6.2.5.1 6.2.5.2 6.2.5.3 6.2.5.4 6.2.5.5 Outputs Feedback loop Display menu and configuration Operate rotary knob Configure device Password protection Use chip card Insert chip card Display and configuration Menu overview Operate menus and enter values Display menu at cold start Status display and configuration Restart device 31 31 32 32 32 33 33 34 35 35 38 39 41 47 Section 7 Operation 7.1 Display elements for device diagnostics 7.1.
Introduction 1 Introduction 1.1 Validity of documentation This documentation is valid for the safe PWM relay PNOZ s50 from Version 1.0.0. It is valid until new documentation is published. This operating manual explains the function and operation, describes the installation and provides guidelines on how to connect the product. INFORMATION The device is suitable for activating inductive loads within the specification. The terminology in this documentation is based on a safe mechanical hold ing brake.
Introduction NOTICE This describes a situation in which the product or devices could be dam aged and also provides information on preventive measures that can be taken. It also highlights areas within the text that are of particular import ance. INFORMATION This gives advice on applications and provides information on special fea tures.
Overview 2 Overview 2.1 Unit structure 2.1.1 Scope of supply 2.1.2 } PWM relay PNOZ s50 } Connection terminals (springloaded terminals) } Chip card } Chip card holder } Documentation on data medium Unit features Using the product PNOZ s50: PWM relay for the safe activation of inductive loads, e.g. valves, mechanical holding brakes. The product has the following features: } } Semiconductor outputs – 2 dualpole failsafe power outputs, rated voltages 24 V or 48 VDC, e.g.
Overview } Display – Number of operations – System information – Status of the inputs and outputs – Warning and error messages } Status and fault LEDs } Plugin connection terminals (springloaded terminals) Operating Manual PNOZ s50 1002194EN02 8
Overview 2.2 Front/side view 2 A1 A2 T0 T1 Y1 Y2 A2 O3 O4 S11 S11 S35 S36 A2 O5 A2 PNOZ s50 X1 X3 X1 X3 3 A1 A2 T0 T1 Y1 Y2 A2 O3 O4 S11 S11 S35 S36 A2 O5 A2 PNOZ s50 5 4 Run Power Out1 Out2 I/O Fault Fault 1 10 6 751500 000001 1.0 751500 000001 1.0 B1 B2 O1+ O1- Y10 Y11 Y20 Y21 O2+ O2- Y12 Y13 Y23 Y22 X4 X2 X4 X2 7 B1 B2 O1+ O1- Y10 Y11 Y20 Y21 O2+ O2- Y12 Y13 Y23 Y22 8 9 Fig.
Safety 3 Safety 3.1 Intended use The PWM relay PNOZ s50 is designed for use in safetyrelated applications. The device meets the requirements of EN ISO 138491 up to PL e and EN IEC 62061 up to SIL CL 3. For example, it is designed for use with } Mechanical holding brakes. } Valves. Intended use includes making the electrical installation EMCcompliant. The product is de signed for use in an industrial environment.
Safety } To shut down the inductive load safely, the fast shutdown must be activated after the slow shutdown. That way the load has a dualpole shutdown. Measures to prevent unexpected startup } Appropriate measures must be taken to prevent unexpected startup or unexpected movements from plant standstill. Wiring measures } The effective current at terminals B1/B2 to supply the power circuits must not exceed 10 A. The cables must be fitted with a 10 A fuse, characteristic B/C.
Safety 3.2 Safety regulations 3.2.1 Use of qualified personnel The products may only be assembled, installed, programmed, commissioned, operated, maintained and decommissioned by competent persons.
Function description 4 Function description 4.1 Introduction The PWM relay PNOZ s50 is used for the safetyrelated shutdown of inductive loads. It has two power outputs to activate two independent, inductive loads. Each power circuit is switched independently by two inputs. Two feedback loops monitor the switch status of the inductive loads. Two failsafe outputs signal the switch status of the inductive loads to the higher level safety control system.
Function description } } Switchon (brake is ventilated): – O1+/O1 is switched on when there is a "1" signal (24 VDC) at Y10 and Y11. – O2+/O2 is switched on when there is a "1" signal (24 VDC) at Y20 and Y21. – Partial operation is not timemonitored. An output will not switch until both the cor responding inputs are "1". Switchoff (brake is applied): – O1+/O1 is switched off safely when there is a "0" signal (0 VDC) at Y10 and/or Y11.
Function description INFORMATION At the safe inputs Y10 and Y11 / Y20 and Y21, a "0" signal must be present before the corresponding output O1+/O1 / O2+/O2 can be switched by a "1" signal at both inputs. If this is not the case, a fault is signalled and the LED "Out 1" or "Out 2" flashes (the diagram below illustrates this, using the dualpole input Y10/Y11 and the output O1+/O1 as an example). O3 Fig.
Function description Y10, Y11 Y20, Y21 01+, 02+ UB1B2 ton toff t UAvg tover t Fig.
Function description INFORMATION Please note that when using slow shutdown, the inputs for fast shutdown (Y10/Y11 and Y20/21) must have a "1" signal. Power circuit 1 Power circuit 2 S35 O1+, O1 1/0 pulse edge Switches off power circuit 1 S36 O2+, O2 1/0 pulse edge Switches off power circuit 2 INFORMATION Please note: Input S35 switches output O1+/O1; input S36 switches output O2+/O2. In the event of a fault, however, both outputs will switch off.
Function description 4.2.3 Conditions for fast and slow shutdown To shut down the power circuits, the following conditions must be met: Shutdown Y10/Y11 S35 O1+/O1 Fast 1/0 pulse edge 1 > 0 Slow 1 1/0 pulse edge > 0 Shutdown Y20/Y21 S36 O2+/O2 Fast 1/0 pulse edge 1 > 0 Slow 1 1/0 pulse edge > 0 Y10/Y11 Y20/Y21 t Fast S35 S36 Slow t O1+/O1O2+/O2t1 t2 Fast t3 t4 Slow t Fig.
Function description 4.2.4 Feedback loop Y1, Y2 The operating state of the inductive load can be uploaded, for example, via } Micro switches } Proximity switches } Hall sensors NOTICE The device may only be operated if the feedback loops Y1 and Y2 evaluate the switch state of the connected equipment. The feedback loops must be monitored continuously from the moment the ventilation time elapses until the output shuts down. The device may not be operated unless the feed back loops are connected.
Function description S35, S36 Y10, Y11 Y20, Y21 01+, 02+ UB1B2 t toff ton UAvg t Tover Y1, Y2 t O4, O5 Ton Toff t Fig.: Ventilation and application time Legend: 4.2.
Function description Please note the fixed allocation of test pulses to the following inputs: } T0 pulses the feedback loop Y1 } T1 pulses the feedback loop Y2 The test pulse outputs T0/T1 are switched on (24 V) in } "RUN" operating status. } "I/O Fault" operating status (fault on inputs and outputs). The test pulse outputs T0/T1 are switched off (0 V) in } "Fault" operating status (internal fault). The test pulses can be switched on and off via the display.
Function description 4.2.7 Output test Outputs that are switched on are checked via regular off tests. } Test pulses for outputs that are switched on: see technical details } Outputs that are switched on are switched off for the duration of the test pulse. } The load must not switch off because of the test. } The switchoff tests cannot be turned off. Dualpole outputs that are switched off are checked via regular on tests. } The test pulses switch the positive pole of the output.
Function description 4.3.2 Chip card The set parameters, the device ID and the check sum for device configuration are stored on the chip card (for further information see chapter entitled "Commissioning", under "Use chip card"). 4.
Installation 5 Installation 5.1 General installation guidelines Control cabinet installation } The unit should be installed in a control cabinet with a protection type of at least IP54. } Fit the device to a horizontal DIN rail. The venting slots must face upwards and down wards. Other mounting positions could destroy the device. } Use the locking element on the rear of the device to attach it to the DIN rail. } Push the device upwards or downwards before lifting it from the DIN rail.
Installation 5.2 Mounting distances Depending on the ambient temperature, with control cabinet installation it may be neces sary to maintain a certain distance from the top and bottom, as well as to other heatprodu cing devices (see diagram). The values stated for the mounting distances are minimum specifications. Details of whether a distance needs to be maintained can be found in the section entitled "Supple mentary data". Air conditioning may otherwise be required. Fig.
Commissioning 6 Commissioning 6.1 Wiring 6.1.1 General wiring guidelines Note: } Information given in the "Technical details" must be followed. } Use copper wire that can withstand 75 °C. } The wiring must be designed to achieve sufficient noise immunity and protection against noise emissions in terms of EMC. Please also refer to DIN EN 602041 (Elec trical equipment of machines).
Commissioning Female connector X2 O1+ O1- Y10 Y11 Y20 Y21 x 2 Female connector X3 O5 O4 O3 A2 Y2 Y1 A2 A1 x 3 Female connector X4 B1 B2 O2+ O2- Y12 Y13 Y23 Y22 x Operating Manual PNOZ s50 1002194EN02 4 Terminal Description O1+ Failsafe output for power circuit 1, positive O1 Failsafe output for power circuit 1, negat ive Y10 Failsafe input for fast shutdown, power circuit 1 Y11 Failsafe input for fast shutdown, power circuit 1 Y20 Failsafe input for fast shutdown, power circuit 2
Commissioning 6.1.3 Supply voltage for device Requirements: } When selecting the power supply, please refer to the requirements stated under “Tech nical Details”. Make sure that the supply voltage for the power circuits (B1/B2) complies with the spe cified tolerance of +/10 %. If the voltage is outside this tolerance, then } – the device will change to a fault condition, if the outputs are switched on – a message will be entered in the error stack if the outputs are switched off.
Commissioning WARNING! Electric shock! Safe electrical isolation must be ensured for the external power supply that generates the supply voltage. Failure to do so could result in electric shock. The power supplies must comply with EN 609501, 05/2006, EN 6155826, 11/1997. INFORMATION Max. current at the power circuits It is essential to note that the effective current at terminals B1/B2 to supply the power circuits must not exceed 10 A. The cables must be fitted with a 10 A fuse, characteristic B/C.
Commissioning 6.1.6 Inputs 6.1.6.
Commissioning 6.1.6.2 Slow shutdown Activation via singlepole out puts PLC: Safety control system O3 PNOZ s50 S35 O4 S36 PLC Connect the inputs to 24 VDC if slow shutdown is not being used. S11 24 V DC S35 S11: Voltage output 24 VDC S36 6.1.7 Outputs Status outputs PLC: Safety control system 6.1.8 PNOZ s50 O3 I1 O4 I2 O5 I3 PLC Feedback loop Feedback loop A N/C contact is shown in the connection diagram. A N/O contact can also be con figured.
Commissioning 6.2 Display menu and configuration The menu settings are made on the unit's display via a rotary knob. You have the option to make the settings on the knob by hand or with a screwdriver. If you make the settings with a screwdriver, the knob can remain within the unit. NOTICE The correct display of configuration data and messages are part of the device's safety concept. If the display is faulty (e.g. pixels are missing, faulty letters or numbers), the device must be taken out of service. 6.
Commissioning NOTICE Please note that all parameters are set to their default values on delivery. Please check all the safetyrelated parameters at least, and enter the values that correspond to your application. 6.2.3 Password protection The configuration is passwordprotected. } Parameters can only be changed once a password has been entered. } Factory setting for the password: 000000 } The pasword consists of 6 figures in the range 000000 … 999999.
Commissioning INFORMATION For details of the procedure when a message appears on the display, please see the section entitled "Display menu at cold start". In the Configuration operating state ("Run" LED flashes): } The data is written to the chip card during configuration. In the RUN operating state ("Run" LED is lit): 6.2.4.1 } The chip card containing a valid configuration must be inserted. } The chip card must not be removed during operation.
Commissioning 6.2.5 Display and configuration 6.2.5.1 Menu overview The following diagrams illustrate the principle structure of the configuration menu on the display. The menu consists of } Messages at cold start, if there are problems with the chip card. } Level 1: Status indicators, error stack } Level 2: Password entry } Level 3: Configuration The displayed symbols illustrate the operation of the rotary knob.
Commissioning Home Level 1 PNOZ s50 O1 O2 Y1 Y2 Level 2 Home Access Denied Wrong PIN No Counter 1: 2: Input Y10 Y11 S35 Edit Config Enter PIN -----Proceed Y20 Y21 S36 Yes Level 3 Home Feedback Y1 Y2 Output O1 O2 O4 O5 O3 TO/T1 Systeminfo SW . . Parameter CRC 0x Error Stack Cat. No. dddD hh:mm:ss Error Cat. No. dddD hh:mm:ss Parameter 0x MSB LSB Fig.
Commissioning Level 3: Configuration The device is configured in Level 3.
Commissioning 6.2.5.
Commissioning 2 1 O1 T 1000 ms U 12 V Cancel Store 3 4 off 450 1000 1500 2150 Fig.: Changing numeric values 6.2.5.3 Display menu at cold start When the device is switched on in the Power On operating state (cold start), the memory contents of the device and the chip card are read and compared. If there are any devi ations, messages will appear. Overview No Chipcard detected No chip card and no chip card holder in the device.
Commissioning Overview Chipcard is Invalid The parameters on the chip card are invalid. Display Description Copy from Ext. Memory and Restart? No Yes No – Return to the previous menu Copy from Int. Memory and Restart? No Yes No – Return to the previous menu Cipcard is Invalid, Copy Int. to Ext.? No Yes No – 1. Use a valid chip card or insert chip card holder only. 2. Restart device with No.
Commissioning 6.2.5.4 Status display and configuration Level 1: Status indicators Overview Display Description PNOZ s50 C Start display O1 Y1 PNOZ s50 O2 Y2 PNOZ s50 Device name O1, O2 – Outputs of the power circuits O1 and O2 Y1, Y2 – Standard inputs of feedback loops 1 and 2. Counter Number of operations Systeminfo Input States of the inputs are dis played 1: Counter for output O1+/ O1 Counter 1: 2: 2: Counter for output O2+/ O2 Systeminfo SW . .
Commissioning Overview Error Stack Error messages are dis played Display Description Error Stack Cat. No. dddD hh:mm:ss Current error stack entry Cat. – Error class (hexa decimal) No. – Error number (hexa decimal) Error text dddD hh:mm:ss Poweron time since Power On: Days, hours, minutes, seconds Error Cat. No. dddD hh:mm:ss Error stack entries Entry number/ number of entries (decimal) Cat. – Error class (hexa decimal) No.
Commissioning Function Terminal Description Parameter Value In display menu Supply voltage, power circuits 1 and 2 B1/B2 Supply voltage Input Voltage 24 V Input > Input Voltage Test pulses Y1/Y2 Test pulses on feed back loops Pulsing On Feedback > Pulsing > Y1/Y2 Pulse Power circuit 1 O1+/O1 Y1 Power circuit 2 O2+/O2 Y2 Reduced voltage U 6V Output > O1 Overexcitation time T 100 ms Output > O1 Maximum ventilation time Ton 30 ms Feedback > Y1 > Maximum application
Commissioning Overview Display format Description Switch to submenus Config 1/3 Config 1/3 Load Store Reset Load – Switches to the Load menu to download the configuration from the chip card Store – Switches to the Store menu to save the configuration to the chip card Reset – Switches to the Reset menu to reset the configuration to the default set tings Config 2/3 Config 2/3 Input Feedback Output Input – Switches to the Input menu to configure the supply voltage for the power element Feedback – Swi
Commissioning Overview Input Voltage Configure the sup ply voltage to the power circuits Display format Input Voltage B1/B2 U 24 V Cancel Store Description U < 24 > V Select supply voltage for power circuit, values: 24, 48 V Cancel – Exit menu without confirming the entry Store – Confirm entry Configure feedback loops Y1 and Y2 Feedback Configure feedback loops Pulsing – Configure test pulses Feedback Pulsing Y1 Y2 Y1 – Switch to the Y1 menu to configure feedback loop Y1 Y2 Switch to the Y2 menu
Commissioning Overview Y1 Ton or Y2 Ton Configure max. ventilation time for fast and slow shut down Display format Y2 Ton Y1 Ton Fast / Slow _ _ _ _ ms Cancel Store Description Slow / Fast < 500 > ms Max. ventilation time Values: 30 … 4000 ms configurable in steps The max. ventilation times are the same for fast and slow shutdown. Cancel – Exit menu without confirming the entry Store – Confirm entry Y1 Toff or Y2 Toff Configure max.
Commissioning Overview Counter 1 or Counter 2 Switch to menu to set the counter for the number of oper ations for power cir cuits O1+/O1 or O2+/O2 Display format Counter 2 Counter 1 Set: Cancel Store Description Counter 1 – Event counter 1 Configure number of operations for load at power cir cuit O1+/O1 Counter 2 – Event counter 2 Configure number of operations for load at power cir cuit O2+/O2 ######## Old counter status Set: Enter new counter status, e.g.
Operation 7 Operation 7.1 Display elements for device diagnostics 7.1.1 LED display Key: LED on LED flashes The device has LEDs to display states and errors. LED Run Error Power Out 1 Out 2 I/O Fault Green Green Green Green Red Fault Red Device is in "Power On" state (startup phase) Device is in "Configuration" state Device is in "RUN" state. Supply voltage to the power circuits is within the permitted range. The LEDs "Out 1" and "Out 2" may be on or off.
Operation 7.1.2 Display 7.1.2.1 Error stack entries Up to 32 status and error messages are stored. They can be called up via the display (see chapter entitled "Commissioning", under "Status display and configuration"). The following information is shown on the display: } Sequential number of an error stack entry (1 ...
Operation Cat. No. Error message Description Remedy 0 2 Enter Stop System is in "STOP" state Purely for information 0 3 Enter Run System is in "RUN" state Purely for information 1 0 ACK IOFault The "IOFault" error has been re Purely for information set with the inputs Y10/Y11 and/ or Y20/Y21 (1/0 pulse edge) 4 0 Copy Config The configuration has been loaded from the chip card to the device.
Operation Cat. No. Error message Description Remedy 7 1 Reinit Memory The device memory has been Purely for information reinitialised. All parameters have been set to the default settings.
Operation Cat. No. Error message Description Remedy 21 0 Readback fail The signal at output O3, O4 or O5 does not correspond to the expected value. Ensure that the outputs are wired correctly Parameter 1: 0x00010000: O3 0x00400000: O4 0x04000000: O5 21 1 Test fail Error during off test of outputs O3, O4 or O5.
Operation Cat. No.
Operation Cat. No. Error message Description Remedy 26 1 Supply Error After on test at O1+/O1 or O2+/ O2, the supply voltage to the power circuits B1/B2 is outside the permitted range Check the supply voltage Parameter 1: 0x00000002: B1/B2 27 0 Overtemp.
Operation Place 5 6 7 7.
Operation Y20 Y21 O2+, O2O3 Error Y10/Y11 Q 1 -> 0 On O1+, O1- t Fig.: Reset fault with singlechannel load Legend: } Error Y10/Y11: Fault at Y10/Y11, load shuts down } Q 1 > 0: Fault: Reset fault at Y11 } On O1+, O1: Switch load on; before switching on, Y10 and Y11 must both be at "0" } O3: Fault signal output Using two power circuits: } With dualchannel activation, the fault can be reset through a 1/0 pulse edge at Y10/ Y11 or Y20/Y21.
Operation Y20 Y21 O2+, O2O3 Error Y10/Y11 Q 1 -> 0 On O2+, O2- On O1+, O1- t Fig.
Examples 8 Examples 8.1 Overview This chapter provides information on how to connect the PNOZ s50 to a safety control sys tem. The connections illustrated are independent of any specific control system. INFORMATION The following examples are intended to help you configure the application using the display. These settings and parameters should be regarded as example settings. It's possible that your own specific application may require different settings or parameters under certain circumstances.
Examples Safety control system } } Inputs: – Fault signal O3 – State of brakes O4, O5 (applied, ventilated) is monitored Outputs – Activation of fast and slow shutdown of brake Brake 8.2.
Examples 8.2.3 Connection Safety Control Outputs O0 O1 O2 O3 O4 O5 Inputs I0 I1 I2 PNOZ s50 Y10 Y12 Y11 Y13 Y20 Y22 Y21 Y23 S11 S35 S36 O3 Y2 O4 Y1 O5 A1 T0 A2 T1 F1 24 V DC F2 24 V DC B1 B2 O1+ O1- O2+ O2- M M B1 B2 S1 S2 Fig.
Technical details 9 Technical details General Approvals Electrical data Supply voltage for Voltage Kind Voltage tolerance Output of external power supply (DC) Output of external power supply (DC) at no load Residual ripple DC Unit fuse protection A1/A2 24 VDC, characteristic B/C Potential isolation Supply voltage for Voltage Kind Voltage tolerance Output of external power supply (DC) Unit fuse protection A1/A2 48 VDC, characteristic B/C Potential isolation Voltage at Input circuit DC Feedback loop DC Inp
Technical details Test pulse outputs Short circuitproof Max. output current at "1" signal Potential isolation Semiconductor outputs Number of positiveswitching singlepole semicon ductor outputs Switching capability Voltage Current Max.
Technical details Environmental data Climatic suitability Ambient temperature Temperature range Storage temperature Temperature range Condensation during operation EMC Vibration In accordance with the standard Frequency Amplitude Max. operating height above sea level Airgap creepage In accordance with the standard Overvoltage category Protection type Mounting area (e.g.
Technical details 9.1 Operating mode All Safety characteristic data EN ISO 138491: 2008 EN ISO 138491: 2008 PL PL e Category Cat. 4 EN IEC 62061 EN IEC 62061 SIL CL PFHD [1/h] SIL CL 3 7,83E10 IEC 61511 IEC 61511 SIL PFD SIL 3 6,81E05 EN ISO 138491: 2008 TM [year] 20 All the units used within a safety function must be considered when calculating the safety characteristic data.
Supplementary data 10 Supplementary data The max. permitted load current at the power circuits O1+/O1 and O2+/O2 depends on the } Ambient temperature. } Distance between the PNOZ s50 and adjacent devices. } Number of power circuits connected (one or two). } Size of the supply voltage to the power circuits at B1/B2.
Order reference 11 Order reference 11.1 Order references Module Product type Terminals PNOZ s50 C Springloaded termin 751 500 als 11.2 Order no. Order references Accessories Chip cards Product type Features Order no.
Appendix 12 Appendix 12.1 Check list Enter the device parameters in the following check list. It is intended as a guide to provide support when commissioning and recommissioning the PNOZ s50 and when carrying out the regular inspection as required. We recommend that you keep the completed check list and store it with the machine docu mentation for reference.
Appendix Function Terminal Description Parameter Power circuit 2 O2+/O2 U Reduced voltage Value ………………………..V Overexcitation time T ……………………….. ms Y2 Maximum ventilation time Ton ……………………….. ms Maximum application time Toff fast Fast shutdown Maximum application time ……………………….. ms Toff slow Slow shutdown Logic of feedback loop 2 ……………………….. ms Logic N/O = Normally open N/C = Normally closed Check sum (CRC):……………………… (from "Systeminfo" menu page) Date:…………………………….
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