PNOZ 16S } Safety relays Operating Manual 1003518-EN-07
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. Source code from third-party manufacturers or open source software has been used for some components. The relevant licence information is available on the Internet on the Pilz homepage.
Contents Introduction Validity of documentation Using the documentation Definition of symbols 4 4 4 4 Safety Intended use Safety regulations Safety assessment Use of qualified personnel Warranty and liability Disposal For your safety 5 5 5 5 6 6 6 6 Unit features 7 Safety features 7 Block diagram/terminal configuration 7 Function Description Operating modes Timing diagram 8 8 9 Installation 9 Wiring 9 Preparing for operation 10 Operation Status indicators 13 13 Faults – Interference 13
PNOZ 16S Introduction Validity of documentation This documentation is valid for the product PNOZ 16S. 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. Using the documentation This document is intended for instruction. Only install and commission the product if you have read and understood this document. The document should be retained for future reference.
PNOZ 16S INFORMATION This gives advice on applications and provides information on special features. Safety Intended use The safety relay PNOZ 16S provides a safety-related interruption of a safety circuit.
PNOZ 16S Use of qualified personnel The products may only be assembled, installed, programmed, commissioned, operated, maintained and decommissioned by competent persons. A competent person is someone who, because of their training, experience and current professional activity, has the specialist knowledge required to test, assess and operate the work equipment, devices, systems, plant and machinery in accordance with the general standards and guidelines for safety technology.
PNOZ 16S Unit features } Positive-guided relay outputs: – 2 safety contacts (N/O), instantaneous } 2 semiconductor outputs } Connection options for: } } } – E-STOP pushbuttons – Safety gate limit switches – Start button – Pressure sensitive edges – Pressure sensitive mats LED indicator for: – Supply voltage – Switch state of the safety contacts – Detection of shorts across contacts, pressure sensitive mat Semiconductor outputs signal: – Supply voltage is present, no short across
PNOZ 16S *Insulation between the non-marked area and the relay contacts: Basic insulation (overvoltage category III), Protective separation (overvoltage category II) Function Description The safety relay PNOZ 16S provides a safety-oriented interruption of a safety circuit. When supply voltage is supplied the "POWER" LED is lit. The unit is ready for operation when the feedback loop Y1-Y2 and the start circuit S33-S34 are closed. } } Input circuit is closed (e.g.
PNOZ 16S Timing diagram [1] [2] Legend } Power: Supply voltage } Start: Start circuit } Input: Input circuit } Output safe: Safety contacts } Semi FAULT: Semiconductor output short across contact } Semi OUT: Semiconductor output switch state } FAULT: Short across contacts in the input circuit due to actuation of pressure sensitive mat } [1]: Automatic start } [2]: Manual start } a: Input circuit closes before start circuit } b: Start circuit closes before input circuit } t1: Switc
PNOZ 16S } To prevent contact welding, a fuse should be connected before the output contacts (see Technical details [ 14]). } Calculation of the max. cable runs lmax in the input circuit: Imax = Rlmax Rl / km Rlmax = max. overall cable resistance (see Technical details [ Rl / km = cable resistance/km 14]) } Use copper wire that can withstand 60/75 °C. } Do not switch low currents using contacts that have been used previously with high currents.
PNOZ 16S Input circuit Single-channel E-STOP without detection of shorts across contacts Dual-channel S1 S12 S21 S11 S22 S32 S31 E-STOP with detection of shorts across contacts S1 S22 Safety gate without detection of shorts across contacts S12 S21 S11 S22 S32 S31 S11 S32 S12 S31 S21 S1 Safety gate with detection of shorts across contacts Short circuit-forming pressure sensitive mat/edge S22 S11 S21 S12 S32 S31 NOTICE With single-channel wiring the safety level of your machine/plant
PNOZ 16S NOTICE The overall system PNOZ 16S and the short circuit-forming pressure sensitive mat or edge has to be assessed in accordance with the product standard EN ISO 13856-1 and/or EN ISO 13856-2. Start circuit Automatic start Manual start S3 S33 S34 NOTICE In the event of an automatic start or manual start with bridged start contact (fault): The unit starts up automatically when the safeguard is reset, e.g. when the E-STOP pushbutton is released.
PNOZ 16S Operation NOTICE Check each safety function – after initial commissioning and after each change of the machine/ plant – for SIL CL 3/PL e at least 1x per month, for SIL CL 2/PL d at least 1x per year Follow the instructions below: – Activate the safety function and check whether all the used safety contacts open. – Prepare for operation again and start the unit. All the used safety contacts must be closed again. The safety functions may only be checked by qualified personnel.
PNOZ 16S 121 (4.76") Dimensions in mm 75 (2.95") 87 (3.42") 45 (1.77") Technical details Order no.
PNOZ 16S Inputs Voltage at Input circuit DC Start circuit DC Feedback loop DC Current at Input circuit DC Start circuit DC Feedback loop DC Min. input resistance at power-on Max. overall cable resistance Rlmax Single-channel at UB DC Single-channel at UB AC Dual-channel with detection of shorts across contacts at UB DC Dual-channel with detection of shorts across contacts at UB AC Max.
PNOZ 16S Relay outputs Utilisation category of safety contacts AC1 at Min. current Max. current Max. power DC1 at Min. current Max. current Max. power Utilisation category In accordance with the standard Utilisation category of safety contacts AC15 at Max. current DC13 (6 cycles/min) at Max. current Utilisation category in accordance with UL Voltage With current Pilot Duty External contact fuse protection, safety contacts In accordance with the standard Max.
PNOZ 16S Conventional thermal current while loading several contacts Ith per contact at UB DC; AC1: 240 V, DC1: 24 V Conv. therm. current with 1 contact Conv. therm. current with 2 contacts Times Switch-on delay With automatic start typ. With automatic start max. With automatic start after power on typ. With automatic start after power on max. With manual start typ. With manual start max. Delay-on de-energisation With E-STOP typ. With E-STOP max. With power failure typ. With power failure max.
PNOZ 16S Environmental data Vibration In accordance with the standard Frequency Amplitude Airgap creepage In accordance with the standard Overvoltage category Pollution degree Rated insulation voltage Rated impulse withstand voltage Protection type Mounting area (e.g.
PNOZ 16S Order no. 774074 -774077 General Approvals Electrical data Supply voltage Voltage Kind Voltage tolerance Output of external power supply (AC) Frequency range AC Supply voltage Voltage Kind Voltage tolerance Output of external power supply (DC) Residual ripple DC Duty cycle Inputs Number Voltage at Input circuit DC Start circuit DC Feedback loop DC Current at Input circuit DC Start circuit DC Feedback loop DC Min.
PNOZ 16S Inputs Max. overall cable resistance Rlmax Single-channel at UB DC Single-channel at UB AC Dual-channel with detection of shorts across contacts at UB DC Dual-channel with detection of shorts across contacts at UB AC Max. safety mat resistance Semiconductor outputs Number Voltage Current External supply voltage Voltage tolerance Relay outputs Number of output contacts Safety contacts (N/O), instantaneous Max.
PNOZ 16S Relay outputs Utilisation category In accordance with the standard Utilisation category of safety contacts AC15 at Max. current DC13 (6 cycles/ min) at Max. current Utilisation category in accordance with UL Voltage With current Pilot Duty External contact fuse protection, safety contacts In accordance with the standard Max.
PNOZ 16S Conventional thermal current while loading several contacts Ith per contact at UB DC; AC1: 240 V, DC1: 2 4V Conv. therm. current with 1 contact Conv. therm. current with 2 contacts Times Switch-on delay With automatic start typ. With automatic start max. With automatic start after power on typ. With automatic start after power on max. With manual start typ. With manual start max. Delay-on de-energisation With E-STOP typ. With E-STOP max. With power failure typ. With power failure max.
PNOZ 16S Environmental data Ambient temperature Temperature range Storage temperature Temperature range Climatic suitability Humidity Condensation during operation EMC Vibration In accordance with the standard Frequency Amplitude Airgap creepage In accordance with the standard Overvoltage category Pollution degree Rated insulation voltage Rated impulse withstand voltage Protection type Mounting area (e.g.
PNOZ 16S Mechanical data Conductor cross section with screw terminals 1 core flexible 2 core with the same cross section, flexible with crimp connectors, no plastic sleeve 2 core with the same cross section, flexible without crimp connectors or with TWIN crimp connectors Torque setting with screw terminals Dimensions Height Width Depth Weight 774074 774075 774076 774077 0,2 - 4 mm², 24 - 10 0,2 - 4 mm², 24 - 10 0,2 - 4 mm², 24 - 10 0,2 - 4 mm², 24 - 10 AWG AWG AWG AWG 0,2 - 2,5 mm², 24 14 AWG 0,2 -
PNOZ 16S INFORMATION A safety function's SIL/PL values are not identical to the SIL/PL values of the units that are used and may be different. We recommend that you use the PAScal software tool to calculate the safety function's SIL/PL values. Supplementary data CAUTION! It is essential to consider the relay's service life graphs. The relay outputs' safety-related characteristic data is only valid if the values in the service life graphs are met.
PNOZ 16S } Contact service life: 4 000 000 cycles Provided the application to be implemented requires fewer than 4 000 000 cycles, the PFH value (see Technical details) can be used in the calculation. To increase the service life, sufficient spark suppression must be provided on all output contacts. With capacitive loads, any power surges that occur must be noted. With DC contactors, use flywheel diodes for spark suppression. Order reference Product type Features Connection type Order No.
Technical support is available from Pilz round the clock.
