PNOZ X7 } Safety relays Operating Manual 19692-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 6 6 6 6 Unit features 7 Safety features 7 Block diagram/terminal configuration Types: AC Type: AC/DC 7 7 8 Function Description Operating modes Timing diagram 9 9 9 Installation 10 Wiring 10 Preparing for operation 11 Operation Status indicators 12 1
PNOZ X7 Introduction Validity of documentation This documentation is valid for the product PNOZ X7. 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 X7 INFORMATION This gives advice on applications and provides information on special features. Safety Intended use The safety relay PNOZ X7 provides a safety-related interruption of a safety circuit.
PNOZ X7 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 X7 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 See order reference for unit types Safety features The safety relay meets the following safety requirements: } The circuit is internally redundant with built-in self-monitoring.
PNOZ X7 *Insulation between the non-marked area and the relay contacts: Basic insulation (overvoltage category III), Protective separation (overvoltage category II) Type: AC/DC } UB: 24 VAC/DC; Order no.
PNOZ X7 Function Description The safety relay PNOZ X7 provides a safety-oriented interruption of a safety circuit. When the supply voltage is applied via the E-STOP pushbutton, the “POWER” LED is lit. The unit is ready for operation when the start circuit and feedback loop Y1-Y2 is closed. } } Input circuit is closed (e.g. E-STOP pushbutton not operated): – The LED "CH.1/CH.2" will light. – Safety contacts 13-14 and 23-24 are closed. The unit is active. Input circuit is opened (e.g.
PNOZ X7 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 [ } Calculating the max. cable length Imax in the input circuit on PNOZ X7 24 VAC/DC: Imax = 14]" must be followed.
PNOZ X7 } The outputs 13-14, 23-24 are safety contacts. } Do not connect undesignated terminals. } To prevent contact welding, a fuse should be connected before the output contacts (see Technical details [ 14]). } Use copper wire that can withstand 60/75 °C. } Sufficient fuse protection must be provided on all output contacts with capacitive and inductive loads. } Do not switch low currents using contacts that have been used previously with high currents.
PNOZ X7 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. Use external circuit measures to prevent an unexpected restart.
PNOZ X7 Faults – Interference } Earth fault: The supply voltage fails and the safety contacts open. Once the cause of the respective fault has been rectified and the supply voltage is switched off for approx. 1 minute, the unit is ready for operation again. } Contact malfunctions: If the contacts have welded, reactivation will not be possible after the input circuit has opened. } LED "POWER" does not light: Short circuit or no supply voltage. 121 (4.8") Dimensions in mm 75 (2.95") 87 (3.
PNOZ X7 Technical details Order no.
PNOZ X7 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 Voltage With current Pilot Duty External contact fuse protection, safety contacts In accordance with the standard Max.
PNOZ X7 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. Recovery time at max.
PNOZ X7 Environmental data Protection type Mounting area (e.g.
PNOZ X7 Order no. 774055 – 774057 See below for more order numbers General 774055 CCC, CE, EAC (Eurasian), KOSHA, TÜV, cUApprovals Lus Listed Electrical data 774055 Supply voltage Voltage 120 V Kind AC Voltage tolerance -15 %/+10 % Output of external power supply (AC) 2 VA Frequency range AC 50 - 60 Hz Duty cycle 100 % Inputs 774055 Number 1 Voltage at Input circuit DC 120 V Start circuit DC 24 V Feedback loop DC 24 V Current at Input circuit DC 18 mA Start circuit DC 40 mA Feedback loop DC 40 mA Max.
PNOZ X7 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 Voltage With current Pilot Duty External contact fuse protection, safety contacts In accordance with the standard Max.
PNOZ X7 Times Delay-on de-energisation With E-STOP typ. With E-STOP max. With power failure typ. With power failure max. Recovery time at max.
PNOZ X7 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 774055 774056 774057 PPO UL 94 V0 ABS UL 94 V0 PPO UL 94 V0 Screw terminal Fixed PPO UL 94 V0 ABS UL 94 V0
PNOZ X7 Order no. 774058 – 774059 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 Max.
PNOZ X7 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 Voltage With current Pilot Duty External contact fuse protection, safety contacts In accordance with the standard Max.
PNOZ X7 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. Recovery time at max.
PNOZ X7 Mechanical data Mounting position Mechanical life 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 774058 Any 10,000,000 cycles 774059 Any 10,000,000 cycles PPO UL 94 V0 ABS
PNOZ X7 Safety characteristic data NOTICE You must comply with the safety-related characteristic data in order to achieve the required safety level for your plant/machine. Operating mode – EN ISO 13849-1: 2008 EN ISO 13849-1: 2008 PL PL e Category Cat.
PNOZ X7 Service life graph Number of cycles x 1000 The service life graphs indicate the number of cycles from which failures due to wear must be expected. The wear is mainly caused by the electrical load; the mechanical load is negligible. Switching current (A) Example } Inductive load: 0.
PNOZ X7 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.
Technical support is available from Pilz round the clock.
