Pilz PNOZ e3vp User manual

PNOZ e3vp
Operating Manual 21244-EN-04
}Safety relays

Preface
This document is a translation of the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for internal purposes. Suggestions and comments for improving this documentation 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 e3vp
21244-EN-04 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
Unit features 8
Safety features 8
Block diagram/terminal configuration 8
Function description 9
Operating modes 10
Installation 10
Wiring 11
Preparing for operation 12
Supply voltage 12
Input circuit 12
Start circuit 12
Feedback loop/delay time 13
Logic connection between several units 15
Logic input S35 and S36 16
Examples 17
Operation 21
Status indicators 21
Faults – Interference 22
Dimensions in mm 27
Technical details 27
Safety characteristic data 33

Contents
Operating Manual PNOZ e3vp
21244-EN-04 4
Remove plug-in terminals 34
Order reference 34
Product 34
Accessories 34

PNOZ e3vp
Operating Manual PNOZ e3vp
21244-EN-04 5
Introduction
Validity of documentation
This documentation is valid for the product PNOZ e3vp. 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 safety relay PNOZ e3vp 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
}the safety sensors PSEN 2.1p-10 and PSEN 2.1p-11 in safety circuits in accordance
with EN 60947-5-3:2005, PDF-M
}as an evaluation device for position switches with N/C/N/O combination
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 [ 27]).
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.

PNOZ e3vp
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Safety regulations
Safety assessment
Before using a unit 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.
Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by competent persons.
A competent person is someone who, because of their training, experience and current pro-
fessional activity, has the specialist knowledge required to test, assess and operate the
work equipment, devices, systems, plant and machinery in accordance with the general
standards and guidelines for safety technology.
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 this description under "Safety"
}And 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-re-
lated 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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Unit features
}Outputs using semiconductor technology:
– 1 safety output, either instantaneous or delayed
– 1 safety output, delayed
– 1 auxiliary output
– 2 test pulse outputs
}Connection options:
– Safety sensors PSEN2.1p-10 and PSEN2.1p-11
– Position switch with N/C / N/O combination
}Selectable delay time
}LED display for:
– Supply voltage
– Switch state of safety outputs
}2 logic inputs (AND/OR) for logic connections between several units
}Feedback loop for monitoring external contactors
}Detection of shorts across contacts via test pulse outputs
Safety features
The relay meets the following safety requirements:
}The circuit is redundant with built-in self-monitoring.
}The safety device remains effective in the case of a component failure.
}The safety outputs are tested periodically using an off-test.
Block diagram/terminal configuration
Input &Feed-
back
Diag-
nostic
Power
Test
Pulse
Output
S12 S35 S36 Y6
Y5 S11 S23 14 24Y32
A1 A2 S24 Y7
Input
Y4
Start
S34
t
t

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Function description
When supply voltage is applied and the set operating mode is detected (initialisation
phase), the "POWER" LED is lit. The unit is ready for operation when the feedback loops
are closed.
}Input circuit: Contact at S12 closed and contact at S24 open (e.g. safety gate closed)
– There are high signals at safety outputs 14 and 24 and auxiliary output Y32.
– LEDs "CH.1" and "CH.2" are lit.
}Input circuit: Contact at S12 open and contact at S24 closed (e.g. safety gate open)
– There are low signals at safety output 14 and auxiliary output Y32.
– LED "CH.1" goes out.
– There is a low signal at safety output 24 once the set delay time has elapsed.
– LED "CH.2" goes out.
Safety output 14 can also be delayed (see Logic input S35 and S36 [ 16]).
NOTICE
There is a low signal at the delayed safety output, at the latest after the set
delay time + 40 ms + 10 % of the set value, even in the case of a compon-
ent failure.
Feedback loop
Before a safety output is switched on, a test is run to establish whether the contacts at
feedback loop inputs Y6 and Y7 are closed. If a contact is open, an error is detected and
LEDs CH.1 and CH.2 will flash alternately. It will not be possible to switch the unit back on
until the feedback loops are closed and the safety function has been reset.
The feedback loop contacts are also checked when the signal at the output changes from
high to low. After this signal change, the contacts at the feedback loop inputs must close
within 150 ms. If a contact is still open after 150 ms has elapsed, an error is detected and is
displayed as a flashing code 1,8 (see Faults – Interference [ 22]). It will not be possible
to switch the unit back on until the error has been rectified and the supply voltage has been
switched off and then on again.
AND/OR connection
The PNOZ e3vp has two logic inputs S35 (OR) and S36 (AND) for logic connections
between several units.

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Operating modes
}Dual-channel operation: Earth faults in the input circuit and shorts between the input cir-
cuit contacts will be detected.
}Automatic start: Unit becomes active once the contact at S12 has been closed and the
contact at S24 has been opened in the input circuit.
}Monitored start: Unit is not active until the start button has been operated and then re-
leased.
}The start-up test prevents automatic restarting after a power failure and subsequent re-
turn of voltage. The unit checks whether safety gates that are closed have been opened
and then closed again when supply voltage is applied.
}Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.
Installation
CAUTION!
Electrostatic discharge can damage components on the safety system!
Ensure against discharge before touching the safety system, e.g. by touch-
ing an earthed, conductive surface or by wearing an earthed armband.
}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.
}Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing ele-
ment (e.g. retaining bracket or an end angle).
NOTICE
If you are connecting several units logically, please note the guidelines in
the section entitled Logic connection between several units [ 15].

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Wiring
Please note:
}Information given in the "Technical details [ 27]" must be followed.
}Use copper wire that can withstand 60/75°C.
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 27])
Rl/km = cable resistance/km
}Cables that have to be laid outside the control cabinet must be protected from mechan-
ical damage, e.g. by installing them in a conduit.
}The unit and the input circuits must always be supplied by a single power supply.
}Safety outputs 14 and 24 should exclusively be used for safe applications.
}The safety outputs must not be connected to control inputs.
}To suppress the pulse on switching off at safety outputs 14 and 24, use the terminal
block with filter (see Order reference [ 34]).
}You must comply with the idling capacity at safety outputs 14 and 24 (see Technical
details [ 27]).
}Output Y32 is an auxiliary output, e.g. for communication with a PLC or text display.
}Auxiliary output Y32 shouldnot be used for safety circuits!
}Only contactors with positive-guided contacts should be used for safety functions.
}Use freewheel diodes to drive inductive loads (e.g. contactors or relays) with the safety/
auxiliary outputs.
}When connecting magnetically operated, reed proximity switches, ensure that the max.
peak inrush current (on the input circuit) does not overload the proximity switch.
}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 IEC 60204-1 are met.
}Terminal Y5 is provided for Pilz-internal diagnostic purposes.

PNOZ e3vp
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Preparing for operation
Supply voltage
Supply voltage AC DC
A1
F1
A2
L+
L-
Input circuit
Connect the N/C and N/O contact from the trigger element to the input circuit.
The table describes how the input circuit is wired when the unit is used individually (without
logic input). If units are linked together logically, Y4 must be wired as described in the table
in the section entitled "Logic connection between several units [ 17]".
Input circuit Dual-channel
without detection of shorts across contacts
PNOZelog PSENmag
Brown
White
Blue
Black
with detection of shorts across contacts
PNOZelog PSENmag
Brown
White
Blue
Black
Start circuit
Automatic start Monitored start
Safety gate
without start-up
test
Safety gate with
start-up test

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NOTICE
With a delayed safety output 24, operation of the start button is saved.
If the safety function is cancelled while the delay time is running (e.g. safety
gate closed) and the start button is operated, then the unit will be active im-
mediately once the delay time has elapsed.
NOTICE
With automatic start
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.
Feedback loop/delay time
Terminals Y6 and Y7 are used to connect the feedback loops and also to define the delay
time of safety output 24.
Connect feedback loop:
The unit has two feedback loop inputs, one (Y6) for safety output 14 and one (Y7) for safety
output 24:
}Safety output 14 (instantaneous):
Connect the contacts from external contactors to terminal Y6.
}Safety output 24 (delayed):
Connect the contacts from external contactors to terminal Y7.
}Both safety outputs instantaneous or both safety outputs delayed:
Connect the contacts from both external contactors in series to terminal Y6 or Y7.
}Feedback loop unconnected:
If you do not wish to connect any contacts to the feedback loop, Y6 and Y7 must be
connected to A1 or S11/S23, depending on the required delay time.
CAUTION!
Do not connect the contacts from external contactors in series to the start
circuit.

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Set delay time:
Set the delay time tV by connecting Y6 and Y7 to terminals A1, S11 and S23 in accordance
with the table.
Y6 A1 A1 A1 S11 S11 S11 S23 S23 S23
Y7 A1 S11 S23 A1 S11 S23 A1 S11 S23
tv [s] with PNOZ e3vp 10 s 0 0.15 0.5 1 2 3 5 7 10
tv [s] with PNOZ e3vp 300 s 0 15 25 50 100 150 200 250 300
Examples:
If you wish to set a delay time of 1 s for the unit type PNOZe3vp 10 s, connect Y6 to S11
and Y7 to A1. If you wish to set a delay time of 100 s for the unit type PNOZe3vp 300 s,
connect Y6 to S11 and Y7 to S11.
Examples
}Example 1:
Both outputs are delayed (bridge A1-S36)
PNOZ e3vp 10: tv = 5 s
PNOZ e3vp 300: tv = 200 s
Feedback loop is connected to Y7. Only a logic OR connection is possible with this wir-
ing.

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}Example 2:
Both outputs are instantaneous, the feedback loop is connected to Y7. This wiring en-
ables a logic AND and an OR connection.
Logic connection between several units
Units from the PNOZelog product range can be logically connected to each other and to
units from the PNOZmulti product range. On the PNOZelog, input S35 is intended for the
logic OR connection and input S36 for the logic AND connection. Safety outputs 14 and 24
on the PNOZelog are suitable for logic connections.
When linking several units logically, please note:
}When PNOZelog units are linked logically to each other, a safety output from a
PNOZelog unit may be connected to logic inputs from one or more PNOZelog units.
}When linking PNOZelog units logically to PNOZmulti units
– a cascading output from PNOZmulti units may be connected to logic inputs on
PNOZelog units
or
– a safety output from PNOZelog units may be connected to cascading inputs on
PNOZmulti units.
}The unit with the lowest SIL/PL value determines the SIL/PL value of the entire circuit.
}PNOZ e1p, PNOZ e8.1p: These units do not have logic inputs. Their safety outputs can
be used to logically link the units to the logic inputs of other PNOZelog units or to the
cascading inputs from PNOZmulti units.
}Safety outputs from the PNOZ e1p are suitable for logic connections from unit version
3.0.
}Each safety output on a PNOZelog unit that is connected to the load may also be con-
nected to the logic inputs of a maximum of four PNOZelog units (Example 1 [ 18]).
}Up to 50 logic inputs from PNOZelog units can be connected to safety outputs with no
load.

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}Logically linking the units leads to delays when switching on and off (see on-delay and
response time in the Technical details [ 27]). These are added up with each unit
that is logically linked (Example 3 [ 20]).
}Install all the logically linked units in the same control cabinet or ensure that faults re-
garding the units' connection are excluded, e.g. via protected installation of the connec-
tion cables.
}All linked units must be connected to the same supply voltage.
Logic input S35 and S36
The logic inputs are connected to each other as follows:
S35 S36
Input circuit
Safety
outputs

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Logic inputs S35 and S36 from the PNOZ e3vp enable additional PNOZelog or PNOZmulti
units to be logically AND/OR connected.
Input circuit Logic AND + OR
connection
Logic AND connec-
tion
Logic OR connec-
tion
without detection of
shorts across con-
tacts
Y4
S36
S35
14/24
14/24
PNOZ e3vp
Unit 1
Unit 2
AND
OR
A1
*1
Y4
S36
14/24
PNOZ e3vp
Unit 1
AND
A1
*1
Y4
S35
14/24
PNOZ e3vp
Unit 1
OR
S11
with detection of
shorts across con-
tacts
Y4
S36
S35
14/24
14/24
PNOZ e3vp
Unit 1
Unit 2
AND
OR
*1
Y4
S36
14/24
PNOZ e3vp
Unit 1
AND
*1
Y4
S35
14/24
PNOZ e3vp
Unit 1
OR
S23
Safety output 14
delayed
∗1 Where units are linked logically, Y4 must be wired as shown here (differs from the por-
trayal on the input circuit).
Examples
WARNING!
Muting the safety function
A valid signal at the OR input of a PNOZelog unit mutes its safety function
and can lead to the most serious injuries and death.
– Before using the OR function, carry out a risk analysis and use other
measures to establish a safe condition.
The following examples represent various ways in which PNOZelog units can be logically
connected. In all the application examples, 2 loads may also be connected to the safety
outputs.

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}Example 1:
Loads are connected to the safety outputs of Unit 1. In addition, a safety output is AND-
linked to 4 other PNOZelog units via the logic input S36.
14

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}Example 2:
Loads are connected to the safety outputs of Unit 1. In addition, a safety output is AND-
linked to another PNOZelog unit via the logic input S36.

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}Example 3
The logic connection line between Unit 1 and Unit 2 contains contacts from the external
contactors on Unit 4. This means that Unit 4 and Unit 1 can set the outputs on Unit 2 and
Unit 3 to low.
A short circuit between +24 VDC and a safety output must be excluded!
K5 K6 K3 K4
K7 K8
K7
K1 K2
K8