Pilz P1HZ X1 User manual

P1HZ X1
Operating Manual-20067-EN-06
}Safety 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 the user's internal purposes. Suggestions and comments for improving this documenta-
tion 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.
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 P1HZ X1
20067-EN-06 3
Introduction 4
Validity of documentation 4
Using the documentation 4
Definition of symbols 4
Safety 5
Intended use 5
Safety regulations 5
Safety assessment 5
Use of qualified personnel 6
Warranty and liability 6
Disposal 6
For your safety 6
Unit features 6
Safety features 7
Block diagram/terminal configuration 7
Function Description 7
Operating modes 8
Timing diagram 8
Installation 8
Wiring 9
Preparing for operation 9
Operation 10
Status indicators 10
Faults – Interference 10
Dimensions in mm 11
Technical details 11
Safety characteristic data 14
Supplementary data 14
Service life graph 15
Order reference 15
EC declaration of conformity 15

P1HZ X1
Operating Manual P1HZ X1
20067-EN-06 4
Introduction
Validity of documentation
This documentation is valid for the product P1HZ X1. 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.

P1HZ X1
Operating Manual P1HZ X1
20067-EN-06 5
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The two-hand control relay P1HZ X1 meets the requirements of EN574 Type IIIA. It forces
the operator to keep his hands outside the hazardous area during the hazardous move-
ment. It is designed for use in two-hand control devices. Please note the type of two-hand
control devices as stated in the relevant C standard.
NOTICE
The two-hand control relay may not be used on press controllers. It is only
suitable for use where the risk analysis has established a low level of risk
(e.g. PL c (Cat. 1) in accordance with EN ISO 13849-1).
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 manual,
}Use of the product outside the technical details (see Technical details [ 11]).
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.
Safety regulations
Safety assessment
Before using a device it is necessary to perform a safety assessment in accordance with
the Machinery Directive.
Functional safety is guaranteed for the product as a single component. However, this does
not guarantee the functional safety of the overall plant/machine. In order to achieve the re-
quired safety level for the overall plant/machine, define the safety requirements for the
plant/machine and then define how these must be implemented from a technical and organ-
isational standpoint.

P1HZ X1
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20067-EN-06 6
Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by competent persons.
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. To
be able to inspect, assess and operate devices, systems and machines, the person has to
be informed of 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 preven-
tion,
}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 spe-
cific 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-re-
lated characteristic data.
}When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).
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:
– 2 safety contacts (N/O), instantaneous
}Connection options for:
– 2 control elements (pushbuttons)
}LED display for:
– Supply voltage

P1HZ X1
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– Switch status of the safety contacts
Safety features
The two-hand control relay meets the following safety requirements:
}The two-hand control relay prevents the plant from being enabled in the following
cases:
– Power supply failure
– Component failure
– Short circuit on an input circuit
– Coil defect
– Open circuit
– Earth fault
}In each on-off cycle, the output relays on the safety device are tested to ensure they
open and close correctly
Block diagram/terminal configuration
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)
Function Description
The two-hand control relay is activated by simultaneously operating the two operator ele-
ments (simultaneity see Technical details [ 11]). If one or both of the operator elements
are released, the device interrupts the control command for the hazardous movement. 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 and 23-24 close, the device is active.
– LEDs "CH1" and "CH2" will light.

P1HZ X1
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20067-EN-06 8
}One operator element is released following simultaneous operation:
– Safety contacts 13-14 and 23-24 are opened
– The LED "CH1" or "CH2" goes out.
}To activate the device again, both operator elements have to be released and then op-
erated again within the simultaneity.
Operating modes
}Dual-channel operation with detection of shorts across contacts: Redundant input cir-
cuit, P1HZ X1 detects
– earth faults in the start and input circuit,
– short circuits in the input circuit,
– shorts across contacts in the input circuit.
Timing diagram
POWER
Feedback loop
Output safe
Button 1
t0t1t2t3t3t1
Button 2
t1
Legend
}POWER: Supply voltage
}Button 1/Button 2: Pushbutton in the input circuit
}Feedback loop: Feedback loop
}Output safe: Safety contacts
}t0: Recovery time after power on
}t1: Simultaneity, channel 1 and 2
}t2: Operating cycle ended through pushbutton 1 or 2
}t3: Feedback loop must be closed before the pushbutton is operated (recovery time)
Shaded area: State irrelevant
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 (35 mm).
}When installed vertically: Secure the unit by using a fixing element (e.g. retaining
bracket or end angle).

P1HZ X1
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20067-EN-06 9
WARNING!
Loss of the safety function due to too short distance of the operator
elements to the hazardous area!
The distance of the two-hand control relay to the nearest hazardous area
must be large enough so that if one of the operator elements is released,
the hazardous movement is interrupted before the operator reaches the
hazardous area or can reach into the hazardous area. You must maintain
the minimum distance in accordance with EN ISO 13855.
Depending on the application, serious injury or death may result.
Wiring
Please note:
}Information given in the "Technical details [ 11]" must be followed.
}The outputs 13-14, 23-24 are safety contacts.
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 11]).
}Fit the input terminal block of the control cabined with additional terminals for the supply
voltage.
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 11])
Rl/km = cable resistance/km
}Use copper wire that can withstand 60/75°C.
}The supply voltage must be switched off with the operating energy of the machine.
}Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
}Do not switch low currents using contacts that have been used previously with high cur-
rents.
}The power supply must comply with the regulations for extra low voltages with protect-
ive electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
}Ensure the wiring and EMC requirements of EN 60204-1 are met.
Preparing for operation
Supply voltage AC DC
A1
A2
L+
L-
F1

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Input circuit Single-channel Dual-channel
Two-hand pushbuttons
with detection of shorts across
contacts
S23
S13
S14
S24
S1
S2
Feedback loop
Contacts from external contactors
Legend
}S1/S2: Two-hand pushbuttons
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 and E-STOP pushbutton not operated.
CH.1
Safety contacts of channel 1 are closed.
CH.2
Safety contacts of channel 2 are closed.
Faults – Interference
}Earth fault: When in accordance with EN 60204 T 9.4.3.1 the phase L (-) of the supply
voltage is connected to the earth potential, earth faults are detected. In case of earth
faults in the input circuit or feedback loop, the internal supply voltage fails and the