PNOZ X2 } Safety relays Operating Manual 1003353-EN-05
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 5 6 6 6 Unit features 7 Safety features 7 Block diagram/terminal configuration 7 Function Description Operating modes Timing diagram 8 8 8 Installation 9 Wiring 9 Preparing for operation 10 Operation Status indicators 11 11 Faults – Interference 11
PNOZ X2 Introduction Validity of documentation This documentation is valid for the product PNOZ X2. 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 X2 INFORMATION This gives advice on applications and provides information on special features. Safety Intended use The safety relay PNOZ X2 provides a safety-related interruption of a safety circuit.
PNOZ X2 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 X2 Unit features } Positive-guided relay outputs: – } } 2 safety contacts (N/O), instantaneous Connection options for: – E-STOP pushbutton – Safety gate limit switch – Start button LED display for: – Supply voltage – Switch status of the safety contacts Safety features The safety 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.
PNOZ X2 Function Description The safety relay PNOZ X2 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 start circuit S33-S34 is closed. } } Input circuit is closed (e.g. E-STOP pushbutton not operated): – Safety contacts 13-14 and 23-24 are closed, the unit is active. – The LEDs "CH.1" and "CH.2" are lit. Input circuit is opened (e.g.
PNOZ X2 Installation } The unit 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. } Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing element (e.g. retaining bracket or an end angle). Wiring Please note: } Information given in the "Technical details [ } The outputs 13-14, 23-24 are safety contacts.
PNOZ X2 Preparing for operation Supply voltage AC Input circuit DC A1 L1 A1 L+ A2 N A2 L- Dual-channel (with detection of shorts across contacts) Single-channel E-STOP S1 S1 A1 L+ S21 S22 S11 S21 S11 S22 S12 S12 Safety gate S1 A1 S21 S22 S11 S12 L+ S11 S12 S21 S22 S1 S2 NOTICE With single-channel wiring the safety level of your machine/plant may be lower than the safety level of the unit (see Safety characteristic data [ 15]).
PNOZ X2 Legend } S1/S2: E-STOP/safety gate switch } S3: Reset button } : Switch operated } : Gate open } : Gate closed Operation NOTICE The safety function should be checked after initial commissioning and each time the plant/machine is changed. The safety functions may only be checked by qualified personnel. Status indicators LEDs indicate the status and errors during operation: LED on POWER Supply voltage is present. CH.1 Safety contacts of channel 1 are closed. CH.
PNOZ X2 121 (4.8") Dimensions in mm 75 (2.95") 87 (3.42") 22,5 (0,89") Technical details General Approvals Electrical data Supply voltage Voltage Kind Voltage tolerance Output of external power supply (AC) Output of external power supply (DC) Frequency range AC Residual ripple DC Duty cycle Max. inrush current impulse Current pulse, A1 Pulse duration, A1 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 X2 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 Relay outputs Number of output contacts Safety contacts (N/O), instantaneous Max. short circuit current IK Utilisation category In accordance with the standard Utilisation category of safety contacts AC1 at Min. current Max. current Max. power DC1 at Min. current Max. current Max.
PNOZ X2 Times Switch-on delay With monitored start typ. With monitored start max. Delay-on de-energisation With E-STOP typ. With E-STOP max. With power failure typ. With power failure max. Recovery time at max. switching frequency 1/s After E-STOP After power failure Waiting period with a monitored start Min. start pulse duration with a monitored start Supply interruption before de-energisation Simultaneity, channel 1 and 2 max.
PNOZ X2 Mechanical data Material Bottom Front Top Connection type Mounting type 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 PPO UL 94 V0 ABS UL 94 V0 PPO UL 94 V0 Screw terminal Fixed 0,2 - 4 mm², 24 - 10 AWG 0,2 - 2,5 mm², 24 - 14 AW
PNOZ X2 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. The PFH value depends on the switching frequency and the load on the relay output.
PNOZ X2 Order reference Product type Features Connection type Order no. PNOZ X2 24 VAC/DC Screw terminals 774 303 EC declaration of conformity This product/these products meet the requirements of the directive 2006/42/EC for machinery of the European Parliament and of the Council. The complete EC Declaration of Conformity is available on the Internet at www.pilz.com/support/downloads. Representative: Norbert Fröhlich, Pilz GmbH & Co. KG, Felix-Wankel-Str.
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