Pilz P2HZ X3 User manual

P2HZ X3
Operating Manual-19484-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 P2HZ X3
19484-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 7
Safety features 7
Block diagram/terminal configuration 7
Function Description 8
Operating modes 8
Timing diagram 8
Installation 9
Wiring 9
Preparing for operation 10
Operation 10
Status indicators 11
Faults – Interference 11
Dimensions in mm 11
Technical details 12
Safety characteristic data 15
Supplementary data 15
Service life graph 16
Order reference 16
EC declaration of conformity 16

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 4
Introduction
Validity of documentation
This documentation is valid for the product P2HZ X3. 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.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 5
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The two-hand control relay P2HZ X3 meets the requirements of EN 574 Type III C. It forces
a press operator to keep his hands out of the hazardous area during the dangerous closing
movement, so avoiding hand injuries.
The P2HZ X3 is suitable for use on controllers for metalworking presses as a block for sim-
ultaneity.
The device can be used as a hand protection device in accordance with the following tech-
nical regulations:
}Mechanical presses (EN 692)
}Hydraulic presses (EN 693)
Or safety circuits in accordance with EN 60204-1; VDE 0113-1.
The supply voltage for the two-hand control relay must only be connected downstream of
the shutdown device in accordance with §9VBG7n5.1/2.
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 [ 15]).
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.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 6
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.
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.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 7
Unit features
}Positive-guided relay outputs:
– 2 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
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
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)

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 8
Function Description
The two-hand control relay P2HZ X3 is activated by simultaneously operating the two oper-
ator elements (simultaneity see Technical details [ 15]). 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:
– The safety contacts 13-14 and 23-24 are closed, the auxiliary contact 31-32 opens,
the device is active.
– LEDs "CH1" and "CH2" will light.
}One operator element is released following simultaneous operation:
– Safety contacts 13-14 and 23-24 are opened redundantly, auxiliary contact 31-32 is
closed.
– 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, P2HZ X3 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
Output aux.
t1
Legend
}POWER: Supply voltage
}Button 1/Button 2: Input circuits S11, S21
}Feedback loop: Feedback loop Y1-Y2
}Output safe: Safety outputs 13-14, 23-24
}Output aux: Auxiliary contacts 31-32

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 9
}t0: Recovery time after power on
}t1: Simultaneity, channel 1 and 2
}t2: Operating cycle ended through pushbutton 1 or 2
}t3: Y1-Y2 must be closed before the button 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).
}Fit the input terminal block of the control cabined with additional terminals for the supply
voltage.
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 [ 15]" must be followed.
}Outputs 13-14, 23-24 are safety contacts, the output 31-32 is an auxiliary contact (e.g.
for display).
}Auxiliary contact 31-32 shouldnot be used for safety circuits!
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 15]).
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 15])
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.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 10
}The connection cables between the P2HZ X3 and the pushbuttons should not be laid
directly next to power cables, otherwise inductive and capacitive interference coupling
can result.
}On account of the low currents you should use gold-plated pushbutton contacts.
}Only contactors with positive-guided contacts should be used for safety functions.
}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
F1
A2
L+
L-
Input circuit Single-channel Dual-channel
Two-hand pushbuttons
with detection of shorts across
contacts
A2
S11
A1
S21
S1
S2
Feedback loop
without feedback loop monitor-
ing with feedback loop monitoring
Link or contacts from external
contactors
Legend
}S1/S2: Two-hand pushbuttons
Operation
When the relay outputs are switched on, the mechanical contact on the relay cannot be
tested automatically. Depending on the operational environment, measures to detect the
non-opening of switching elements may be required under some circumstances.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 11
When the product is used in accordance with the European Machinery Directive, a check
must be carried out to ensure that the safety contacts on the relay outputs open correctly.
Open the safety contacts (switch off output) and start the device again, so that the internal
diagnostics can check that the safety contacts open correctly
}for SIL CL 3/PL e at least 1x per month
}for SIL CL 2/PL d at least 1x per year
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
}Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.
Dimensions in mm
121 (4.8")
75 (2.95")
87 (3.42")
22,5
(0,89")

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 12
Technical details
General
Approvals CCC, CE, EAC (Eurasian), TÜV, cULus Listed
Electrical data
Supply voltage
Voltage 24 V
Kind DC
Voltage tolerance -15 %/+10 %
Output of external power supply (DC) 2,5 W
Residual ripple DC 10 %
Duty cycle 100 %
Current at
Normally open contact 15 mA
N/C 20 mA
Max. overall cable resistance Rlmax per input circuit 14 Ohm
External unit fuse protection F1 min. 1 A
External unit fuse protection F1 max. Max. conductor cross section
Two-hand control relay type
In accordance with the standard EN 574
Type III C
Inputs
Number 2
Voltage at
Input circuit DC 24 V
Feedback loop DC 24 V
Current at
Feedback loop DC 30 mA
Relay outputs
Number of output contacts
Safety contacts (N/O), instantaneous 2
Auxiliary contacts (N/C) 1
Max. short circuit current IK 1 kA
Utilisation category
In accordance with the standard EN 60947-4-1
Utilisation category of safety contacts
AC1 at 240 V
Min. current 0,01 A
Max. current 5 A
Max. power 1250 VA
DC1 at 24 V
Min. current 0,01 A
Max. current 5 A
Max. power 125 W

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 13
Relay outputs
Utilisation category of auxiliary contacts
AC1 at 240 V
Min. current 0,01 A
Max. current 2,5 A
Max. power 600 VA
DC1 at 24 V
Min. current 0,01 A
Max. current 2,5 A
Max. power 60 W
Utilisation category
In accordance with the standard EN 60947-5-1
Utilisation category of safety contacts
AC15 at 230 V
Max. current 2,5 A
DC13 (6 cycles/min) at 24 V
Max. current 1,5 A
Utilisation category of auxiliary contacts
AC15 at 230 V
Max. current 2,5 A
DC13 (6 cycles/min) at 24 V
Max. current 1,5 A
Utilisation category in accordance with UL
Voltage 240 V AC G. P.
With current 5 A
Voltage 24 V DC Resistive
With current 5 A
Pilot Duty B300, R300
External contact fuse protection, safety contacts
In accordance with the standard EN 60947-5-1
Max. melting integral 100 A²s
Blow-out fuse, quick 6 A
Blow-out fuse, slow 4 A
Blow-out fuse, gG 6 A
Circuit breaker 24V AC/DC, characteristic B/C 4 A
External contact fuse protection, auxiliary contacts
Max. melting integral 100 A²s
Blow-out fuse, quick 4 A
Blow-out fuse, slow 2 A
Blow-out fuse, gG 4 A
Circuit breaker 24 V AC/DC, characteristic B/C 2 A
Conventional thermal current 5 A
Contact material AgSnO2 + 0,2 µm Au

P2HZ X3
Operating Manual P2HZ X3
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Times
Delay-on de-energisation (response time in accord-
ance with EN 574)
Normally open contact 15 ms
N/C 30 ms
Recovery time 250 ms
Simultaneity, channel 1 and 2 max. 500 ms
Environmental data
Climatic suitability EN 60068-2-78
Ambient temperature
Temperature range -25 - 55 °C
Storage temperature
Temperature range -40 - 85 °C
Climatic suitability
Humidity 93 % r. h. at 40 °C
Condensation during operation Not permitted
EMC EN 60947-5-1, EN 61000-6-2
Vibration
In accordance with the standard EN 60068-2-6
Frequency 10 - 55 Hz
Amplitude 0,35 mm
Airgap creepage
In accordance with the standard EN 60947-1
Overvoltage category III / II
Pollution degree 2
Rated insulation voltage 250 V
Rated impulse withstand voltage 4 kV
Protection type
Housing IP40
Terminals IP20
Mounting area (e.g. control cabinet) IP54
Mechanical data
Mounting position Any
Mechanical life 10,000,000 cycles
Material
Bottom PPO UL 94 V0
Front ABS UL 94 V0
Top PPO UL 94 V0
Connection type Screw terminal
Mounting type Fixed
Conductor cross section with screw terminals
1 core flexible 0,2 - 4 mm², 24 - 10 AWG
2 core with the same cross section, flexible with
crimp connectors, no plastic sleeve 0,2 - 2,5 mm², 24 - 14 AWG
2 core with the same cross section, flexible without
crimp connectors or with TWIN crimp connectors 0,2 - 2,5 mm², 24 - 14 AWG

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 15
Mechanical data
Torque setting with screw terminals 0,6 Nm
Dimensions
Height 87 mm
Width 22,5 mm
Depth 121 mm
Weight 210 g
Where standards are undated, the 2017-09 latest editions shall apply.
Safety characteristic data
NOTICE
You must comply with the safety characteristic data in order to achieve the
required safety level for your plant/machine.
Operating
mode
EN ISO
13849-1:
2015
PL
EN ISO
13849-1:
2015
Category
EN62061
SIL CL
EN62061
PFHD [1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO
13849-1:
2015
TM [year]
–PL e Cat. 4 SIL CL 3 3,01E-09 SIL 3 3,24E-06 20
All the units used within a safety function must be considered when calculating the safety
characteristic data.
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.
The PFH value depends on the switch frequency and the load of the relay output.
If the service life graphs are not accessible, the stated PFH value can be used irrespective
of the switch frequency and the load, as the PFH value already considers the relay's B10d
value as well as the failure rates of the other components.

P2HZ X3
Operating Manual P2HZ X3
19484-EN-06 16
Service life graph
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 negli-
gible.
Cycles x 1000
Switching current (A)
Example
}Inductive load: 2 A
}Utilisation category AC15
}Contact service life: 400 000 cycles
Provided the application to be implemented requires fewer than 400 000 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 con-
tactors, use flywheel diodes for spark suppression.
Order reference
Product type Features Connection type Order no.
P2HZ X3 24 VDC Screw terminals 774 350
EC declaration of conformity
This product/these products meet the requirements of the directive 2006/42/EC for ma-
chinery 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. 2, 73760 Ost-
fildern, Germany

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CMSE®, InduraNET p®, PAS4000®, PAScal®, PASconfig®, Pilz®, PIT®, PLID®, PMCprimo®, PMCprotego®, PMCtendo®, PMD®, 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. We would point out that product features may vary
from the details stated in this document, depending on the status at the time of publication and the scope of the equipment. We accept no responsibility for the validity, accuracy and entirety of the text and graphics presented in this information. Please contact our Technical Support if you have any questions.
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200XXXX-EN-0X
0-0-2-3-000, 2017-00 Printed in Germany
© Pilz GmbH & Co. KG, 2017
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19484-EN-06, 2018-03 Printed in Germany © Pilz GmbH & Co. KG, 2015