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PNOZ s3Operating Manual-21395-EN-10Safety relays

Preface This document is 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. SD means Secure Digital

PNOZ s3 safety relay The safety relay provides a safety-related interruption of a safety circuit. The safety relay meets the requirements of EN 60947-5-1, EN 60204-1 and VDE 0113-1 and may be used in applications with } E-STOP pushbuttons } Safety gates } Light beam devices For your safety } Only install and commission the unit if you have read and understood these operating instructions and are familiar with the applicable regulations for health and safety at work and accident prevention. Ensure VDE and local regulations are met, especially those relating to safety. } Any guarantee is rendered invalid if the housing is opened or unauthorised modifica- tions are carried out. Unit features } Positive-guided relay outputs: – 2 safety contacts (N/O), instantaneous } 1 semiconductor output } Connection options for: – E-STOP pushbutton – Safety gate limit switch – Start button – Light beam device – PSEN } A connector can be used to connect 1 PNOZsigma contact expansion module } Operating modes can be set via rotary switch } LED indicator for: – Supply voltage – – – Switch status channel 1/2 – Start circuit – Error Input status, channel 1 Input status, channel 2 } Plug-in connection terminals (either spring-loaded terminal or screw terminal) 3 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

Safety features The relay meets the following safety requirements: } The circuit is redundant with built-in self-monitoring. } The safety function remains effective in the case of a component failure. } The correct opening and closing of the safety function relays is tested automatically in each on-off cycle. } The unit has an electronic fuse. Block diagram/terminal configuration A1 A2 S11 S12 S21 S22 13 23 * = = Power Input Input Reset/ Start K1 K2 S34 Y32 14 24 e c a f r e t n I i n o s n a p x e t i n u Centre: Front view with cover, right: Front view without cover *Insulation between the non-marked area and the relay contacts: Basic insulation (overvolt- age category III), safe separation (overvoltage category II) Function description } In2+ Single-channel operation: no redundancy in the input circuit, earth faults in the start circuit and input circuit are detected. } Dual-channel operation without detection of shorts across contacts: redundant input cir- } cuit, detects – earth faults in the start and input circuit, – short circuits in the input circuit and, with a monitored start, in the start circuit too. In2- Dual-channel operation with detection of shorts across contacts: redundant input cir- cuit, detects – earth faults in the start and input circuit, – short circuits in the input circuit and, with a monitored start, in the start circuit too, – shorts between contacts in the input circuit. } Automatic start: Unit is active once the input circuit has been closed. 4 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

} Manual start: Unit is active once the input circuit is closed and then the start circuit is closed. } } } } – – Monitored start with falling edge: Unit is active once the input circuit is closed and then the start circuit is closed and opened again. the start circuit is closed and then opened again once the input circuit is closed. Monitored start with rising edge: Unit is active once the input circuit is closed and once the start circuit is closed after the waiting period has elapsed (see technical de- tails). Start with start-up test: The unit checks whether safety gates that are closed are opened and then closed again when supply voltage is applied. Increase in the number of available instantaneous safety contacts by connecting con- tact expander modules or external contactors/relays; A connector can be used to connect 1 PNOZsigma contact expander module. Installation Install base unit without contact expansion module: } Ensure that the plug terminator is inserted at the side of the unit. Connect base unit and PNOZsigma contact expansion module: } Remove the plug terminator at the side of the base unit and at the contact expansion module. } Connect the base unit and the contact expansion module to the supplied connector be- fore mounting the units to the DIN rail. Installation in control cabinet } The safety relay should be installed in a control cabinet with a protection type of at least IP54. } Use the notch on the rear of the unit to attach it to a DIN rail (35 mm). } When installed vertically: Secure the unit by using a fixing element (e.g. retaining brack- et or end angle). } Push the device upwards or downwards before lifting it from the DIN rail. Information given in the "Technical details" must be followed. Wiring Please note: } } The outputs 13-14, 23-24 are safety contacts. } Semiconductor output Y32 should not be used for safety circuits! } To prevent contact welding, a fuse should be connected before the output contacts (see technical details). 5 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

} Calculation of the max. cable length lmax in the input circuit: Rlmax Rl / km Imax = Rlmax = max. overall cable resistance (see technical details) Rl / km = cable resistance/km } Use copper wire that can withstand 60/75 °C. } Sufficient fuse protection must be provided on all output contacts with capacitive and in- ductive loads. } When connecting magnetically operated, reed proximity switches, ensure that the max. peak inrush current (on the input circuit) does not overload the proximity switch. Preparing for operation Operating modes The operating mode is set via the rotary switch on the unit. You can do this by opening the cover on the front of the unit. CAUTION! Do not adjust the rotary switch during operation, otherwise an error mes- sage will appear, the safety contacts will open and the unit will not be ready for operation until the supply voltage has been switched off and then on again. Set operating modes } Switch off supply voltage. } Select operating mode via the operating mode selector switch "mode". } If the operating mode selector switch "mode" is in its start position (vertical position), an error message will appear. Operating mode selector switch "mode" Without detec- tion of shorts across contacts With detection of shorts across contacts Automatic/man- ual start Monitored start rising edge Monitored start falling edge Automatic start with start-up test In2+ In2- In2+ In2- In2+ In2- In2+ In2- In2+ In2- In2+ In2- In2+ In2- In2+ In2- 6 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

Connection } Supply voltage Supply voltage AC DC A1 A2 L+ L- } Input circuit Input circuit Emergency stop without detection of shorts across contacts Emergency stop with detection of shorts across contacts Safety gate without detection of shorts across contacts Safety gate with detection of shorts across contacts Light beam device or safety switch with detection of shorts across contacts via ESPE Single-channel Dual-channel S1 S11 S12 S22 S1 S11 S12 S22 S11 S12 S22 S11 S21 S22 S12 S11 S12 S22 S11 S12 S21 S22 S1 S1 S1 S2 S1 S2 A2 S12 S22 24 V DC GND 7 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

} Start circuit/feedback loop Start circuit/feedback loop Automatic start Manual/monitored start } Semiconductor output Start circuit Feedback loop S12 S34 13 (23) 14 (24) S12 S34 13 (23) 14 (24) K5 K6 L1 N K5 K6 S3 K5 K6 L1 N K5 K6 S3 S12 S34 *Connect together the 0V connections on all the external power supplies Operation The unit is ready for operation when the Power LED is permanently lit. LEDs indicate the status and errors during operation: LED on LED flashes Information Status indicators and error indicators may occur independently. In the case of an error display, the "Fault" LED will light or flash (exception: "Supply voltage too low"). An LED that is also flashing indicates the potential cause of the error. An LED that is lit and is static indicates a normal operating sta- tus. Several status indicators and error indicators may occur simultaneously. 8 PNOZ s3Operating Manual PNOZ s3 21395-EN-10

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