Pilz P2HZ X4P User manual

P2HZ X4P
Operating Manual-20076-EN-11
-Safety relays

Preface
This document is the original document.
Where unavoidable, for reasons of readability, the masculine form has been selected when
formulating this document. We do assure you that all persons are regarded without discrim-
ination and on an equal basis.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for the user's internal purposes. Suggestions and comments for improving this documenta-
tion 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

Contents
Operating Manual P2HZ X4P
20076-EN-11 | 3
Introduction ............................................................................................................................5
Validity of documentation ..........................................................................................................5
Using the documentation ..........................................................................................................5
Definition of symbols .................................................................................................................5
Safety ......................................................................................................................................6
Intended use .............................................................................................................................6
Safety regulations .....................................................................................................................7
Safety assessment....................................................................................................................7
Use of qualified personnel.........................................................................................................7
Warranty and liability.................................................................................................................7
Disposal ....................................................................................................................................7
For your safety ..........................................................................................................................8
Unit features ...........................................................................................................................8
Safety features .......................................................................................................................8
Block diagram/terminal configuration .................................................................................9
Types: DC .................................................................................................................................9
Types: AC .................................................................................................................................9
Function Description .............................................................................................................10
Operating modes.......................................................................................................................10
Timing diagram .........................................................................................................................11
Installation ..............................................................................................................................11
Wiring ......................................................................................................................................12
Preparing for operation .........................................................................................................13
Operation ................................................................................................................................13
Status indicators........................................................................................................................14
Faults – Interference ..............................................................................................................14
Dimensions in mm .................................................................................................................14
Technical details ....................................................................................................................15
Safety characteristic data..........................................................................................................19
Supplementary data ...............................................................................................................20
Service life graph ......................................................................................................................20

Contents
Operating Manual P2HZ X4P
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Order reference ......................................................................................................................21
EC declaration of conformity ................................................................................................21
UKCA-Declaration of Conformity .........................................................................................21

P2HZ X4P
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Introduction
Validity of documentation
This documentation is valid for the product P2HZ X4P. 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 ref-
erence.
Definition of symbols
Information that is particularly important is identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation that poses
an immediate threat of serious injury and death and indicates preventive
measures that can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation that could
lead to serious injury and death and indicates preventive measures that can
be taken.
CAUTION!
This refers to a hazard that can lead to a less serious or minor injury plus
material damage, and also provides information on preventive measures
that can be taken.
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.

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INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The two-hand control relay P2HZ X4P meets the requirements of EN ISO 13851 Type IIIC
and EN 60204-1.
It forces an operator to keep his hands out of the hazardous area during the dangerous
movement.
The device is suitable as a block for simultaneity, for example for mounting in press control-
lers, woodworking machinery or machine tools.
Note the respective valid regulations for these machines.
Improper use
The following is deemed improper use in particular:
}Any component, technical or electrical modification to the product,
}Use of the product outside the areas described in this operating manual,
}Use of the product outside the technical details (see chapter entitled Technical
Details [ 19]).
NOTICE
EMC-compliant electrical installation
The product is designed for use in an industrial environment. The product
may cause interference if installed in other environments. If installed in other
environments, measures should be taken to comply with the applicable
standards and directives for the respective installation site with regard to in-
terference.

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Safety regulations
Safety assessment
Before using a device, a safety assessment in accordance with the Machinery Directive is
required.
The product as an individual component fulfils the functional safety requirements in accord-
ance with EN ISO 13849 and ENIEC62061. However, this does not guarantee the func-
tional safety of the overall plant/machine. To achieve the relevant safety level of the overall
plant/machine’s required safety functions, each safety function needs to be considered sep-
arately.
Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by persons who are competent to do so.
A competent person is a qualified and knowledgeable person who, because of their train-
ing, experience and current professional activity, has the specialist knowledge required. In
order to inspect, assess and handle products, devices, systems, plant and machinery, this
person must be familiar with the state of the art and the applicable national, European and
international laws, directives and standards.
It is the company’s responsibility only to employ personnel who
}Are familiar with the basic regulations concerning health and safety / accident prevention,
}Have read and understood the information provided in the section entitled Safety
}Have a good knowledge of the generic and specialist standards applicable to the specific
application.
Warranty and liability
All claims to warranty and liability will be rendered invalid if
}The product was used contrary to the purpose for which it is intended,
}Damage can be attributed to not having followed the guidelines in the manual,
}Operating personnel are not suitably qualified,
}Any type of modification has been made (e.g. exchanging components on the PCB
boards, soldering work etc.).
Disposal
}In safety-related applications, please comply with the mission time TM in the safety-related
characteristic data.
}When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).

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For your safety
The unit meets all the necessary conditions for safe operation. However, please note the
following:
}Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120
VDC) are present on the unit, connected control elements and sensors must have a rated
insulation voltage of at least 250 V.
Unit features
}Positive-guided relay outputs:
– 3 safety contacts (N/O), instantaneous
– 1 auxiliary contact (N/C), instantaneous
}Connection options for:
– 2 control elements (pushbuttons)
}LED display for:
– Supply voltage
– Switch status of the safety contacts
}Plug-in connection terminals (either spring-loaded terminal or screw terminal)
Safety features
The two-hand control 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 circuit prevents a further press stroke in the case of:
– Relay failure
– Contact welding
– Coil defect on a relay
– Open circuit
– Short circuit

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Block diagram/terminal configuration
Types: DC
}UB: 24 VDC; Order no. 777355, 787355
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)
Types: AC
}UB: 24 VAC; Order no. 777354
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)

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Function Description
The two-hand control relay P2HZ X4P is activated by simultaneously pressing the two oper-
ator elements (simultaneity see Technical details [ 19]). If one or both of the operator
elements are released, it interrupts the control command to close the press. The device is
ready for operation when the supply voltage is applied and the feedback loop Y1-Y2 is
closed. The "POWER" LED lights up.
}Both operator elements are operated within the simultaneity:
– Safety contacts 13-14, 23-24 and 33-34 close, auxiliary contact 41-42 is opened, the
device is active.
– LEDs "CH1" and "CH2" will light.
}One operator element is released following simultaneous operation:
– Safety contacts 13-14, 23-24 and 33-34 are opened redundantly, auxiliary contact
41-42 is closed.
– The LED "CH1" or "CH2" goes out.
}To activate the device again, both operator elements have to be released and then oper-
ated again within the simultaneity.
Operating modes
}Dual-channel operation with detection of shorts across contacts: Redundant input circuit,
P2HZ X4P detects
– earth faults in the start and input circuit,
– short circuits in the input circuit,
– shorts across contacts in the input circuit.