Pilz P2HZ X1 User manual

P2HZ X1
Operating Manual-20124-EN-09
-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 X1
20124-EN-09 | 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 .................................................................................................................................10
Function Description .............................................................................................................10
Operating modes.......................................................................................................................11
Timing diagram .........................................................................................................................11
Installation ..............................................................................................................................12
Wiring ......................................................................................................................................12
Preparing for operation .........................................................................................................13
Operation ................................................................................................................................14
Status indicators........................................................................................................................14
Faults – Interference ..............................................................................................................14
Dimensions in mm .................................................................................................................15
Technical Details Order No. 774330, 774332, 774340 .........................................................15
Technical Details Order No. 774434, 774435, 774438 .........................................................20
Safety characteristic data ......................................................................................................25
Supplementary data ...............................................................................................................26
Service life graph ......................................................................................................................26

Contents
Operating Manual P2HZ X1
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Order reference ......................................................................................................................27
EC declaration of conformity ................................................................................................27
UKCA-Declaration of Conformity .........................................................................................27

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Introduction
Validity of documentation
This documentation is valid for the product P2HZ 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.

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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 X1 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 [ 20]).
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
}2 semiconductor outputs
}Connection options for:
– 2 control elements (pushbuttons)
}LED display for:
– Supply voltage
– Switch status of the safety contacts
}Semiconductor outputs signal:
– Supply voltage is present
– 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

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Block diagram/terminal configuration
Types: DC
}UB: 24 VDC; Order no. 774340
*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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Types: AC
UB: 24 VAC; Order no. 774330
UB: 48 VAC; Order no. 774332
UB: 110 VAC; Order no. 774434
UB: 115 VAC; Order no. 774435
UB: 230 VAC; Order no. 774438
*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 P2HZ X1is activated by simultaneously operating the two oper-
ator elements (simultaneity see Technical details [ 20]). 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.
– A high signal is present at the semiconductor output switch state Y32.
}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.
– A low signal is present at the semiconductor output switch state Y32.
}To activate the device again, both operator elements have to be released and then oper-
ated again within the simultaneity.

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Semiconductor output supply voltage Y35:
}A high signal is present at semiconductor output Y35 if the supply voltage is present and
the internal fuse has not blown.
Operating modes
}Dual-channel operation with detection of shorts across contacts: Redundant input circuit,
P2HZ 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
Out semi CH
Output aux.
Out semi RUN
t1
Legend
}POWER: Supply voltage
}Button 1/Button 2: Pushbutton in the input circuit
}Feedback loop: Feedback loop
}Output safe: Safety outputs
}Output aux: Auxiliary contact
}Out semi RUN: Semiconductor output supply voltage
}Out semi CH: Semiconductor output switch state
}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

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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).
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 [ 20]" must be followed.
}Outputs 13-14, 23-24, 33-34 are safety contacts; output 41-42 is an auxiliary contact (e.g.
for display).
}Do not use auxiliary contacts 41-42 and semiconductor outputs Y32 and Y35 for safety
circuits!
}Do not connect undesignated terminals.
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 20]).
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 20])
Rl/km = cable resistance/km
}Use copper wiring with a temperature stability of 60/75 °C.
}To prevent EMC interferences (particularly common-mode interferences) the measures
described in EN60204-1 must be executed. This includes the separate routing of cables
of the control circuits (input, start and feedback loop) from other cables for energy trans-
mission or the shielding of cables, for example.
}The supply voltage must be switched off with the operating energy of the machine.
}Only contactors with positive-guided contacts should be used for safety functions.
}Adequate protection circuit 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.

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}On 24 VDC devices:
The power supply must comply with the regulations for extra low voltages with protective
electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
Preparing for operation
Supply voltage AC DC
A1
A2
L1
N
F1
A1
F1
A2
L+
L-
Input circuit Single-channel Dual-channel
Two-hand pushbuttons
with detection of shorts across
contacts
S22
S21
S12
S11
S13
S23
S1
S2
Feedback loop without feedback loop monitor-
ing
with feedback loop monitoring
Link or contacts from external
contactors
Semiconductor output
PLC
PLC
Legend
}S1/S2: Two-hand pushbuttons

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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.
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 3/PL e at least 1x per month
}for SIL 2/PL d at least 1x per year
NOTICE
The safety functions 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.

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Dimensions in mm
121 (4.76")
75 (2.95")
87 (3.42")
45
(1.77")
Technical Details Order No. 774330, 774332, 774340
General 774330 774332 774340
Certifications
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
Electrical data 774330 774332 774340
Supply voltage
Voltage 24 V 48 V 24 V
Kind AC AC DC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (AC) 6 VA 6 VA –
Output of external
power supply (DC) – – 2,5 W
Frequency range AC 50 - 60 Hz 50 - 60 Hz –
Residual ripple DC – – 10 %
Duty cycle 100 % 100 % 100 %
Current at
N/O contact 30 mA 30 mA 30 mA
N/C contact 20 mA 20 mA 20 mA
Max. overall cable resist-
ance Rlmax per input cir-
cuit 14 Ohm 14 Ohm 14 Ohm
External unit fuse protec-
tion F1 min. 1 A 1 A 1 A
External unit fuse protec-
tion F1 max.
Max. conductor cross
section
Max. conductor cross
section
Max. conductor cross
section

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Electrical data 774330 774332 774340
Two-hand control relay
type
in accordance with the
standard EN ISO 13851 EN ISO 13851 EN ISO 13851
Type III C III C III C
Inputs 774330 774332 774340
Quantity 222
Voltage at
Input circuit DC 24 V 24 V 24 V
Feedback loop DC 24 V 24 V 24 V
Current at
Feedback loop DC 45 mA 45 mA 45 mA
Semiconductor outputs 774330 774332 774340
Quantity 222
Voltage 24 V 24 V 24 V
Current 20 mA 20 mA 20 mA
External supply voltage 24 V 24 V 24 V
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Residual current at "0"
signal 0,1 mA 0,1 mA 0,1 mA
Max. internal voltage drop 4 V 4 V 4 V
Conditional rated short cir-
cuit current 100 A 100 A 100 A
Lowest operating current 0 mA 0 mA 0 mA
Utilisation category in ac-
cordance with EN
60947-1 DC-12 DC-12 DC-12
Relay outputs 774330 774332 774340
Number of output con-
tacts
Safety contacts (N/O),
instantaneous 333
Auxiliary contacts (N/C) 111
Max. short circuit current
IK 1 kA 1 kA 1 kA
Utilisation category
in accordance with the
standard EN 60947-4-1 EN 60947-4-1 EN 60947-4-1

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Relay outputs 774330 774332 774340
Utilisation category of
safety contacts
AC1 at 240 V 240 V 240 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 5 A 5 A 5 A
Max. power 1250 VA 1250 VA 1250 VA
DC1 at 24 V 24 V 24 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 5 A 5 A 5 A
Max. power 125 W 125 W 125 W
Utilisation category of
auxiliary contacts
AC1 at 240 V 240 V 240 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 2 A 2 A 2 A
Max. power 500 VA 500 VA 500 VA
DC1 at 24 V 24 V 24 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 2 A 2 A 2 A
Max. power 50 W 50 W 50 W
Utilisation category
in accordance with the
standard EN 60947-5-1 EN 60947-5-1 EN 60947-5-1
Utilisation category of
safety contacts
AC15 at 230 V 230 V 230 V
Max. current 2,5 A 2,5 A 2,5 A
DC13 (6 cycles/min) at 24 V 24 V 24 V
Max. current 1,5 A 1,5 A 1,5 A
Utilisation category of
auxiliary contacts
AC15 at 230 V 230 V 230 V
Max. current 2 A 2 A 2 A
DC13 (6 cycles/min) at 24 V 24 V 24 V
Max. current 1,5 A 1,5 A 1,5 A
Utilisation category in ac-
cordance with UL
Voltage 240 V AC G. P. 240 V AC G. P. 240 V AC G. P.
with current 5 A 5 A 5 A
Voltage 24 V DC Resistive 24 V DC Resistive 24 V DC Resistive
with current 5 A 5 A 5 A
Pilot Duty C300, R300 C300, R300 C300, R300

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Relay outputs 774330 774332 774340
External contact fuse pro-
tection, safety contacts
in accordance with the
standard EN 60947-5-1 EN 60947-5-1 EN 60947-5-1
Max. melting integral 240 A²s 240 A²s 240 A²s
Blow-out fuse, quick 6 A 6 A 6 A
Blow-out fuse, slow 4 A 4 A 4 A
Blow-out fuse, gG 6 A 6 A 6 A
Circuit breaker 24V
AC/DC, characteristic
B/C 4 A 4 A 4 A
External contact fuse pro-
tection, auxiliary contacts
Max. melting integral 240 A²s 240 A²s 240 A²s
Blow-out fuse, quick 4 A 4 A 4 A
Blow-out fuse, slow 2 A 2 A 2 A
Blow-out fuse, gG 4 A 4 A 4 A
Circuit breaker, 24
VAC/DC, character-
istic B/C 2 A 2 A 2 A
Conventional thermal cur-
rent 5 A 5 A 5 A
Contact material AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au
Times 774330 774332 774340
Delay-on de-energisation
(response time tA in ac-
cordance with EN ISO
13851)
N/O contact 15 ms 15 ms 15 ms
N/C contact 30 ms 30 ms 30 ms
Recovery time 250 ms 250 ms 250 ms
Simultaneity, channel 1
and 2 max. 500 ms 500 ms 500 ms
Environmental data 774330 774332 774340
Climatic suitability EN 60068-2-78 EN 60068-2-78 EN 60068-2-78
Ambient temperature
Temperature range -25 - 55 °C -25 - 55 °C -25 - 55 °C
Storage temperature
Temperature range -40 - 85 °C -40 - 85 °C -40 - 85 °C
Climatic suitability
Humidity 93 % r. h. at 40 °C 93 % r. h. at 40 °C 93 % r. h. at 40 °C
Condensation during op-
eration Not permitted Not permitted Not permitted
EMC EN 60947-5-1, EN
61000-6-2
EN 60947-5-1, EN
61000-6-2
EN 60947-5-1, EN
61000-6-2

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Environmental data 774330 774332 774340
Vibration
in accordance with the
standard EN 60068-2-6 EN 60068-2-6 EN 60068-2-6
Frequency 10 - 55 Hz 10 - 55 Hz 10 - 55 Hz
Amplitude 0,35 mm 0,35 mm 0,35 mm
Airgap creepage
in accordance with the
standard EN 60947-1 EN 60947-1 EN 60947-1
Overvoltage category III / II III / II III / II
Pollution degree 222
Rated insulation voltage 250 V 250 V 250 V
Rated impulse withstand
voltage 4 kV 4 kV 4 kV
Protection type
Housing IP40 IP40 IP40
Terminals IP20 IP20 IP20
Mounting area (e.g.
control cabinet) IP54 IP54 IP54
Mechanical data 774330 774332 774340
Mounting position Any Any Any
Mechanical life 10,000,000 cycles 10,000,000 cycles 10,000,000 cycles
Material
Bottom PPO UL 94 V1 PPO UL 94 V1 PPO UL 94 V1
Front ABS UL 94 V0 ABS UL 94 V0 ABS UL 94 V0
Top PPO UL 94 V1 PPO UL 94 V1 PPO UL 94 V1
Connection type Screw terminal Screw terminal Screw terminal
Mounting type Fixed Fixed Fixed
Conductor cross section
with screw terminals
1 core flexible 0,2 - 4 mm², 24 - 10 AWG 0,2 - 4 mm², 24 - 10 AWG 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
0,2 - 2,5 mm², 24 - 14
AWG
0,2 - 2,5 mm², 24 - 14
AWG
2 core with the same
cross section, flexible
without crimp connect-
ors or with TWIN crimp
connectors
0,2 - 2,5 mm², 24 - 14
AWG
0,2 - 2,5 mm², 24 - 14
AWG
0,2 - 2,5 mm², 24 - 14
AWG
Torque setting with screw
terminals 0,5 Nm 0,5 Nm 0,5 Nm
Stripping length with
screw terminals 6 mm 6 mm 6 mm
Dimensions
Height 87 mm 87 mm 87 mm
Width 45 mm 45 mm 45 mm
Depth 121 mm 121 mm 121 mm
Weight 380 g 380 g 280 g

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Where standards are undated, the 2022-09 latest editions shall apply.
Technical Details Order No. 774434, 774435, 774438
General 774434 774435 774438
Certifications
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
CCC, CE, EAC, TÜV,
UKCA, cULus Listed
Electrical data 774434 774435 774438
Supply voltage
Voltage 110 V 115 V 230 V
Kind AC AC AC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (AC) 6 VA 6 VA 6 VA
Frequency range AC 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Duty cycle 100 % 100 % 100 %
Current at
N/O contact 30 mA 30 mA 30 mA
N/C contact 20 mA 20 mA 20 mA
Max. overall cable resist-
ance Rlmax per input cir-
cuit 14 Ohm 14 Ohm 14 Ohm
External unit fuse protec-
tion F1 min. 1 A 1 A 1 A
External unit fuse protec-
tion F1 max.
Max. conductor cross
section
Max. conductor cross
section
Max. conductor cross
section
Two-hand control relay
type
in accordance with the
standard EN ISO 13851 EN ISO 13851 EN ISO 13851
Type III C III C III C
Inputs 774434 774435 774438
Quantity 222
Voltage at
Input circuit DC 24 V 24 V 24 V
Feedback loop DC 24 V 24 V 24 V
Current at
Feedback loop DC 45 mA 45 mA 45 mA
Semiconductor outputs 774434 774435 774438
Quantity 222
Voltage 24 V 24 V 24 V
Current 20 mA 20 mA 20 mA
External supply voltage 24 V 24 V 24 V
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Residual current at "0"
signal 0,1 mA 0,1 mA 0,1 mA
Max. internal voltage drop 4 V 4 V 4 V