Pilz PNOZ 2VJ User manual

PNOZ 2VJ
Operating Manual-18604-EN-04
}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 PNOZ 2VJ
18604-EN-04 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 9
Installation 10
Wiring 10
Preparing for operation 11
Operation 12
Status indicators 13
Faults – Interference 13
Dimensions in mm 14
Technical details 15
Safety characteristic data 19
Supplementary data 20
Service life graph 21
Order reference 22
EC declaration of conformity 22

PNOZ 2VJ
Operating Manual PNOZ 2VJ
18604-EN-04 4
Introduction
Validity of documentation
This documentation is valid for the product PNOZ 2VJ. 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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Operating Manual PNOZ 2VJ
18604-EN-04 5
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The safety relay PNOZ 2VJ provides a safety-related interruption of a safety circuit.
The safety relay meets the requirements of EN 60947-5-1, EN 60204-1 and VDE 0113-1
and may be used in applications with
}E-STOP pushbuttons
}Safety gates
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.
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.

PNOZ 2VJ
Operating Manual PNOZ 2VJ
18604-EN-04 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.

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Operating Manual PNOZ 2VJ
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Unit features
}Positive-guided relay outputs:
– 3 safety contacts (N/O), instantaneous
– 2 safety contacts (N/O), delay-on de-energisation
– 1 auxiliary contact (N/C), instantaneous
}Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Start button
}Delay-on de-energisation can be set separately for both safety contacts with delay-on
de-energisation
}Possible to cancel delay time
}LED display for:
– Supply voltage
– Switch status of the safety contacts
Safety features
The safety 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 correct opening and closing of the safety function relays is tested automatically in
each on-off cycle.
Block diagram/terminal configuration
PNOZ 2VJ
*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 safety relay PNOZ 2VJ provides a safety-oriented interruption of a safety circuit. When
supply voltage is supplied the "POWER" LED is lit. The unit is ready for operation when the
feedback loop Y1-Y2, the reset circuit Y39-Y40 and the start circuit S33-S34 are closed.
}Input circuit is closed (e.g. E-STOP pushbutton not operated):
– The LEDs "CH.1 Input", "CH.1 t1", "CH.1 t2" and "CH.2 Input", "CH.2 t1", "CH.2 t2"
are lit.
– Safety contacts 13-14, 23-24, 33-34, 57-58 and 67-68 are closed, auxiliary contact
41-42 is opened. The unit is active.
}Input circuit is opened (e.g. E-STOP pushbutton operated):
– The LEDs "CH.1 Input" and "CH.2 Input" go out.
– Safety contacts 13-14, 23-24 and 33-34 are opened redundantly, auxiliary contact
41-42 is closed.
– Once the delay time t1 has elapsed, safety contact 57-58 opens.
– LEDs "CH.1 t1" and "CH.2 t1" go out.
– Once the delay time t2 has elapsed, safety contact 67-68 opens.
– The LEDs "CH.1 t2" and "CH.2 t2" go out.
The delay times t1 for safety contact 57-58 and t2 for safety contact 67-68 can be set on
the front of the unit using a screwdriver.
Reset function:
The cycle for delay times t1 and t2 can be ended prematurely by opening the reset circuit
Y39-Y40. For this purpose, one N/C contact is connected between Y39-Y40 instead of a
link.
NOTICE
If the safety requirement (e.g. E-STOP pushbutton operated) is triggered <
6 s after starting, the delay-on de-energisation of the instantaneous safety
contacts may be increased (see Technical details [ 15]).
Operating modes
}Single-channel operation: No redundancy in the input circuit, earth faults in the start
and input circuit are detected.
}Dual-channel operation without detection of shorts across contacts: Redundant input
circuit, detects PNOZ 2VJ
– earth faults in the start and input circuit,
– short circuits in the input circuit.
}Automatic start: Unit is active once the input circuit has been closed.
}Manual start: Unit is active once the input circuit and the start circuit are closed.
}Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.

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Timing diagram
[1] [2]
Output safe delay
Output safe
Output aux
Input
Start
ta
tb
t3
ta
tbtb
tvtvt3
tatb
tv
POWER
Reset tv
ta
tv
Legend
}Power: Supply voltage
}Start: Start circuit
}Reset tv: Reset
}Input: Input circuit
}Output safe: Safety contacts, instantaneous
}Output safe delay: Safety contacts, delayed
}Output aux: Auxiliary contact
}[1]: Automatic start
}[2]: Manual start
}a: Input circuit closes before start circuit
}b: Start circuit closes before input circuit
}ta: Switch-on delay
}tb: Delay-on de-energisation instantaneous contacts
}tv: Delay time (t1/t2)
}t3: Recovery time
NOTICE
At the latest the safety contacts open after the set delay time + 50 ms +
15% of the set value, even in the case of a component failure.

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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).
Wiring
Please note:
}Information given in the "Technical details [ 15]" must be followed.
}Outputs 13-14, 23-24, 33-34 are instantaneous safety contacts, outputs 57-58, 67-68
are delay-on de-energisation safety contacts, output 41-42 is an instantaneous auxiliary
contact (e.g. for display).
}Auxiliary contact 41-42 shouldnot be used for safety circuits!
}Do not connect undesignated terminals.
}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.
}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.

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Preparing for operation
Supply voltage AC DC
A1
A2
-24 V
0 V
Input circuit Single-channel Dual-channel
E-STOP
without detection of shorts across
contacts
S1
S11
S22
S12
S1
S11
S12
S22
Safety gate
without detection of shorts across
contacts
S1
S11
S22
S12
S1 S2
S11
S12
S22
NOTICE
With single-channel wiring the safety level of your machine/plant may be
lower than the safety level of the unit (see Safety characteristic
data [ 19]).
Start circuit
E-STOP wiring (single-channel
and dual-channel)
Safety gate (dual-channel, posi-
tion monitoring)
Safety gate (dual-channel, with
start-up test)
Automatic start
Manual start
S33
S34
S3

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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.
Reset circuit Without reset With reset
Link or N/C contact
Y39
Y40
Feedback loop
Without feedback loop monitor-
ing With feedback loop monitoring
Link or contacts from external con-
tactors
K8
K7
K7
Y1
Y2
13 (23 ... 67)
14 (24 ... 68)
L1
N
K8
Legend
}S1/S2: E-STOP/safety gate switch
}S3: Reset button
}: Switch operated
}: Gate open
}: Gate closed
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 CL 3/PL e at least 1x per month
}for SIL CL 2/PL d at least 1x per year

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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.
CH.1 Input
Channel 1 safety contacts are closed.
CH.2 Input
Channel 2 safety contacts are closed.
CH.1 t1
Channel 3 safety contacts are closed.
CH.2 t1
Channel 4 safety contacts are closed.
CH.1 t2
Channel 5 safety contacts are closed.
CH.2 t2
Channel 6 safety contacts are closed.
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.
}In the case of an error, the delay-on de-energisation contacts may open before the
delay time has elapsed.

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Dimensions in mm
112,5 (4.41")
121 (4.76")
75 (2.95")
87 (3.42")

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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) 6,5 W
Residual ripple DC 160 %
Duty cycle 100 %
Max. inrush current impulse
Current pulse, A1 10 A
Pulse duration, A1 0,25 ms
Inputs
Number 2
Voltage at
Input circuit DC 24 V
Start circuit DC 24 V
Feedback loop DC 24 V
Current at
Input circuit DC 35 mA
Start circuit DC 100 mA
Feedback loop DC 100 mA
Max. overall cable resistance Rlmax
Single-channel at UB DC 60 Ohm
Dual-channel without detection of shorts across
contacts at UB DC 120 Ohm
Relay outputs
Number of output contacts
Safety contacts (N/O), instantaneous 3
Safety contacts (N/O), delayed 2
Auxiliary contacts (N/C) 1
Max. short circuit current IK 1 kA
Utilisation category
In accordance with the standard EN 60947-4-1

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Relay outputs
Utilisation category of safety contacts
AC1 at 400 V
Min. current 0,01 A
Max. current 5 A
Max. power 2000 VA
AC1 at 240 V
Min. current 0,01 A
Max. current 8 A
Max. power 2000 VA
DC1 at 24 V
Min. current 0,01 A
Max. current 8 A
Max. power 200 W
Utilisation category of safety contacts delayed
AC1 at 240 V
Min. current 0,01 A
Max. current 4 A
Max. power 1000 VA
DC1 at 24 V
Min. current 0,01 A
Max. current 4 A
Max. power 100 W
Utilisation category of auxiliary contacts
AC1 at 240 V
Min. current 0,01 A
Max. current 8 A
Max. power 2000 VA
DC1 at 24 V
Min. current 0,01 A
Max. current 8 A
Max. power 200 W
Utilisation category
In accordance with the standard EN 60947-5-1
Utilisation category of safety contacts
AC15 at 230 V
Max. current 5 A
DC13 (6 cycles/min) at 24 V
Max. current 7 A
Utilisation category of safety contacts delayed
AC15 at 230 V
Max. current 4 A
DC13 (6 cycles/min) at 24 V
Max. current 4 A

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Relay outputs
Utilisation category of auxiliary contacts
AC15 at 230 V
Max. current 5 A
DC13 (6 cycles/min) at 24 V
Max. current 7 A
Utilisation category in accordance with UL
Voltage 240 V AC G. P.
With current 8 A
Pilot Duty C300, R300
External contact fuse protection, safety contacts
In accordance with the standard EN 60947-5-1
Max. melting integral 240 A²s
Blow-out fuse, quick 10 A
Blow-out fuse, slow 6 A
Blow-out fuse, gG 10 A
Circuit breaker 24V AC/DC, characteristic B/C 6 A
External contact fuse protection, delayed safety con-
tacts
Max. melting integral 240 A²s
Blow-out fuse, quick 6 A
Blow-out fuse, slow 4 A
Blow-out fuse, gG 6 A
Circuit breaker 24 V AC/DC, characteristic B/C 4 A
External contact fuse protection, auxiliary contacts
Max. melting integral 240 A²s
Blow-out fuse, quick 10 A
Blow-out fuse, slow 6 A
Blow-out fuse, gG 10 A
Circuit breaker 24 V AC/DC, characteristic B/C 6 A
Contact material AgSnO2 + 0,2 µm Au
Conventional thermal current while loading sev-
eral contacts
Ith per contact at UB DC; AC1:240V,DC1:24V
Conv. therm. current with 1 contact 8 A
Conv. therm. current with 2 contacts 6,8 A
Conv. therm. current with 3 contacts 5,5 A
Conv. therm. current with 4 contacts 5 A
Conv. therm. current with 5 contacts 4,5 A

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Times
Switch-on delay
With automatic start typ. 200 ms
With automatic start max. 300 ms
With automatic start after power on typ. 200 ms
With automatic start after power on max. 300 ms
With manual start typ. 200 ms
With manual start max. 300 ms
Delay-on de-energisation
With E-STOP typ. 15 ms
With E-STOP, duty cycle ≥6s, max. 30 ms
With E-STOP, duty cycle <6s, max. 400 ms
With power failure typ. 30 ms
With power failure max. 400 ms
Recovery time at max. switching frequency 1/s
After E-STOP 50 ms +tv
After power failure 100 ms
Delay time t1 0,1 s, 0,2 s, 0,3 s, 0,4 s, 0,5 s, 0,6 s, 0,7 s, 0,8 s, 1
s, 1,5 s, 2 s, 3 s
Delay time t2 1 s, 2 s, 3 s, 4 s, 5 s, 6 s, 7 s, 8 s, 10 s, 12 s, 15 s,
20 s
Time accuracy -15 %/+15 % +50 ms
Repetition accuracy 2 %
Supply interruption before de-energisation 20 ms
Simultaneity, channel 1 and 2 max. 150 ms
Environmental data
Climatic suitability EN 60068-2-78
Ambient temperature
Temperature range -10 - 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, EN 61326-3-1
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 400 V
Rated impulse withstand voltage 4 kV

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Environmental data
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
Torque setting with screw terminals 0,6 Nm
Dimensions
Height 87 mm
Width 112,5 mm
Depth 121 mm
Weight 600 g
Where standards are undated, the 2017-01 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]
Safety con-
tacts, in-
stantaneous PL e Cat. 4 SIL CL 3 2,31E-09 SIL 3 2,03E-06 20

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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]
Safety con-
tacts,
delayed <30
sPL d Cat. 3 SIL CL 3 2,64E-09 SIL 3 1,26E-05 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.