Pilz PNOZ s3 Series User manual

PNOZ s3
Operating Manual-21395-EN-10
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 internal purposes. Suggestions and comments for improving this documentation 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

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 3
PNOZ s3 safety relay
The safety relay 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
}Light beam devices
For your safety
}Only install and commission the unit if you have read and understood these operating
instructions and are familiar with the applicable regulations for health and safety at work
and accident prevention.
Ensure VDE and local regulations are met, especially those relating to safety.
}Any guarantee is rendered invalid if the housing is opened or unauthorised modifica-
tions are carried out.
Unit features
}Positive-guided relay outputs:
– 2 safety contacts (N/O), instantaneous
}1 semiconductor output
}Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Start button
– Light beam device
– PSEN
}A connector can be used to connect 1 PNOZsigma contact expansion module
}Operating modes can be set via rotary switch
}LED indicator for:
– Supply voltage
– Input status, channel 1
– Input status, channel 2
– Switch status channel 1/2
– Start circuit
– Error
}Plug-in connection terminals (either spring-loaded terminal or screw terminal)

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 4
Safety features
The 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.
}The unit has an electronic fuse.
Block diagram/terminal configuration
InputInput
A1 A2 S21 S22

Power
Reset/
Start
S34
S11 S12

Y32
K1
K2
13 23
24
14
Interface
expansion
unit

Centre: Front view with cover, right: Front view without cover
*Insulation between the non-marked area and the relay contacts: Basic insulation (overvolt-
age category III), safe separation (overvoltage category II)
Function description
}

Single-channel operation: no redundancy in the input circuit, earth faults in the start
circuit and input circuit are detected.
}Dual-channel operation without detection of shorts across contacts: redundant input cir-
cuit, detects
– earth faults in the start and input circuit,
– short circuits in the input circuit and, with a monitored start, in the start circuit too.
}

Dual-channel operation with detection of shorts across contacts: redundant input cir-
cuit, detects
– earth faults in the start and input circuit,
– short circuits in the input circuit and, with a monitored start, in the start circuit too,
– shorts between contacts in the input circuit.
}Automatic start: Unit is active once the input circuit has been closed.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 5
}Manual start: Unit is active once the input circuit is closed and then the start circuit is
closed.
}Monitored start with falling edge: Unit is active once
– the input circuit is closed and then the start circuit is closed and opened again.
– the start circuit is closed and then opened again once the input circuit is closed.
}Monitored start with rising edge: Unit is active once the input circuit is closed and
once the start circuit is closed after the waiting period has elapsed (see technical de-
tails).
}Start with start-up test: The unit checks whether safety gates that are closed are
opened and then closed again when supply voltage is applied.
}Increase in the number of available instantaneous safety contacts by connecting con-
tact expander modules or external contactors/relays;
A connector can be used to connect 1 PNOZsigma contact expander module.
Installation
Install base unit without contact expansion module:
}Ensure that the plug terminator is inserted at the side of the unit.
Connect base unit and PNOZsigma contact expansion module:
}Remove the plug terminator at the side of the base unit and at the contact expansion
module.
}Connect the base unit and the contact expansion module to the supplied connector be-
fore mounting the units to the DIN rail.
Installation in control cabinet
}The safety relay 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 brack-
et or end angle).
}Push the device upwards or downwards before lifting it from the DIN rail.
Wiring
Please note:
}Information given in the "Technical details" must be followed.
}The outputs 13-14, 23-24 are safety contacts.
}Semiconductor output Y32 should not be used for safety circuits!
}To prevent contact welding, a fuse should be connected before the output contacts (see
technical details).

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 6
}Calculation of the max. cable length lmax in the input circuit:




Rlmax = max. overall cable resistance (see technical details)
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.
}When connecting magnetically operated, reed proximity switches, ensure that the max.
peak inrush current (on the input circuit) does not overload the proximity switch.
Preparing for operation
Operating modes
The operating mode is set via the rotary switch on the unit. You can do this by opening the
cover on the front of the unit.
CAUTION!
Do not adjust the rotary switch during operation, otherwise an error mes-
sage will appear, the safety contacts will open and the unit will not be ready
for operation until the supply voltage has been switched off and then on
again.
Set operating modes
}Switch off supply voltage.
}Select operating mode via the operating mode selector switch "mode".
}If the operating mode selector switch "mode" is in its start position (vertical position), an
error message will appear.
Operating mode
selector switch
"mode"
Automatic/man-
ual start
Monitored start
rising edge
Monitored start
falling edge
Automatic start
with start-up test
Without detec-
tion of shorts
across contacts








With detection of
shorts across
contacts









PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 7
Connection
}Supply voltage
Supply voltage AC DC
 
 
}Input circuit
Input circuit Single-channel Dual-channel
Emergency stop
without detection of shorts
across contacts








Emergency stop
with detection of shorts
across contacts





Safety gate
without detection of shorts
across contacts 



 



Safety gate
with detection of shorts
across contacts
 




Light beam device or safety
switch with detection of
shorts across contacts via
ESPE






PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 8
}Start circuit/feedback loop
Start circuit/feedback loop Start circuit Feedback loop
Automatic start
 








Manual/monitored start



 
 







}Semiconductor output
*Connect together the 0V connections on all the external power supplies
Operation
The unit is ready for operation when the Power LED is permanently lit.
LEDs indicate the status and errors during operation:
LED on
LED flashes
Information
Status indicators and error indicators may occur independently. In the case
of an error display, the "Fault" LED will light or flash (exception: "Supply
voltage too low"). An LED that is also flashing indicates the potential cause
of the error. An LED that is lit and is static indicates a normal operating sta-
tus. Several status indicators and error indicators may occur simultaneously.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 9
Status indicators
Power
Supply voltage is present.
In1
Input circuit at S12 is closed.
In2
Input circuit at S22 is closed.
Out
Safety contacts are closed and semiconductor output Y32 carries a high signal.
Reset
24 V DC is present at S34.
Error indicators
All LEDs off
Diagnostics: Short across contacts/earth fault; unit switched off
}Remedy: Rectify short across contacts/earth fault, switch off supply voltage
for 1 min.
Fault
Diagnostics: Plug terminator not connected
}Remedy: Insert plug terminator, switch supply voltage off and then on
again.
Fault
Diagnostics: Internal error, unit defective
}Remedy: Switch supply voltage off and then on again, change unit if neces-
sary.
Power
Diagnostics: Supply voltage too low
}Remedy: Check the supply voltage.
In1, In2 alternately
Fault
Diagnostics: Short detected between S12 and S22
}Remedy: Rectify short across contacts, switch supply voltage off and then
on again.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 10
In1
Fault
Diagnostics: Power-up blocked due to short-term interruption at S12; input cir-
cuits not operated simultaneously
}Remedy: Open both input circuits, S12 and S22, simultaneously and then
close again.
In2
Fault
Diagnostics: Power-up blocked due to short-term interruption at S22; input cir-
cuits not operated simultaneously
}Remedy: Open both input circuits, S12 and S22, simultaneously and then
close again.
Reset
Fault
Diagnostics: Position of rotary switch is not permitted or rotary switch was ad-
justed during operation.
}Remedy: Switch supply voltage off and then on again.
Power, In1, In2, Out, Reset, Fault
Diagnostics: The operating mode selector switch "mode" is in its start position
(vertical position)
}Remedy: Switch off the supply voltage and set the required operating mode
on operating mode selector switch "mode".
Faults - malfunctions
}Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 11
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.
Example
}Inductive load: 0,2 A
}Utilisation category: AC15
}Contact service life: 2,000,000 cycles
Provided the application requires fewer than 2,000,000 cycles, the PFH value (see techni-
cal 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 contac-
tors, use freewheel diodes for spark suppression.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 12
Technical Details
General 750103 751103
Approvals CCC, CE, GOST, KOSHA, TÜV,
cULus Listed
CCC, CE, GOST, KOSHA, TÜV,
cULus Listed
Electrical data 750103 751103
Supply voltage
Voltage 24 V 24 V
Type DC DC
Voltage tolerance -15 %/+10 % -15 %/+10 %
Output of external power supply
(DC)
2,5 W 2,5 W
Residual ripple DC 20 % 20 %
Continuous duty 100 % 100 %
Max. inrush current impulse
A1 0,50 A 0,50 A
Pulse duration 5,0000 ms 5,0000 ms
Reset circuit 0,20 A 0,20 A
Feedback loop 0,20 A 0,20 A
Max. overall cable resistance Rl-
max
Single-channel at UB DC 30 Ohm 30 Ohm
Dual-channel without detection
of shorts across contacts at UB
DC
60 Ohm 60 Ohm
Dual-channel with detection of
shorts across contacts at UB DC
30 Ohm 30 Ohm
Min. input resistance at power-on 110 Ohm 110 Ohm
Voltage at
Input circuit DC 24,0 V 24,0 V
Reset circuit DC 24,0 V 24,0 V
Feedback loop DC 24,0 V 24,0 V
Current at
Input circuit DC 50,0 mA 50,0 mA
Reset circuit DC 50,0 mA 50,0 mA
Feedback loop 50,0 mA 50,0 mA
Number of output contacts
Instantaneous safety contacts
(N/O)
2 2
Inputs 750103 751103
Number 2 2
Semiconductor outputs 750103 751103
Number 1 1
Voltage 24,0 V 24,0 V
Current 20 mA 20 mA

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 13
Relay outputs 750103 751103
Max. short circuit current IK 1 kA 1 kA
Utilisation category
In accordance with the standard EN 60947-4-1 EN 60947-4-1
Safety contacts, AC1 at 240 V 240 V
Max. current 6,0 A 6,0 A
Min. current 0,01 A 0,01 A
Max. power 1500 VA 1500 VA
Safety contacts, DC1 at 24 V 24 V
Max. current 6,0 A 6,0 A
Min. current 0,01 A 0,01 A
Max. power 150 W 150 W
Utilisation category
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Safety contacts, AC15 at 230 V 230 V
Max. current 5,0 A 5,0 A
Safety contacts, DC13 (6 cycles/
min) at
24 V 24 V
Max. current 5,0 A 5,0 A
Contact fuse protection, external
safety contacts
In accordance with the standard EN 60947-5-1 EN 60947-5-1
Blow-out fuse, quick 10 A 10 A
Blow-out fuse, slow 6 A 6 A
Circuit breaker, 24V AC/DC,
characteristic B/C
6 A 6 A
Conventional thermal current 6,0 A 6,0 A
Contact material AgCuNi + 0,2 µm Au AgCuNi + 0,2 µm Au
Times 750103 751103
Switch-on delay
With automatic reset typ. 170 ms 170 ms
With automatic reset max. 300 ms 300 ms
With automatic reset after power
on typ.
350 ms 350 ms
With automatic reset after power
on max.
600 ms 600 ms
With manual reset typ. 40 ms 40 ms
With monitored reset with rising
edge typ.
35 ms 35 ms
With monitored reset with rising
edge max.
50 ms 50 ms
With monitored reset with falling
edge typ.
55 ms 55 ms
With monitored reset with falling
edge max.
70 ms 70 ms

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 14
Times 750103 751103
Delay-on de-energisation
With E-STOP typ. 10 ms 10 ms
With E-STOP max. 20 ms 20 ms
With power failure typ. 40 ms 40 ms
With power failure max. 60 ms 60 ms
Recovery time at max. switching
frequency 1/s
After E-STOP 100 ms 100 ms
After power failure 100 ms 100 ms
Waiting period with a monitored re-
set
With rising edge 120 ms 120 ms
With falling edge 250 ms 250 ms
Min. start pulse duration with a
monitored reset
With rising edge 30 ms 30 ms
With falling edge 100 ms 100 ms
Supply interruption before de-ener-
gisation
20 ms 20 ms
Simultaneity, channel 1 and 2 ∞ ∞
Environmental data 750103 751103
Climatic suitability EN 60068-2-78 EN 60068-2-78
Ambient temperature
Temperature range -10 - 55 °C -10 - 55 °C
Storage temperature
Temperature range -40 - 85 °C -40 - 85 °C
EMC EN 60947-5-1, EN 61000-6-2, EN
61000-6-4
EN 60947-5-1, EN 61000-6-2, EN
61000-6-4
Vibration
In accordance with the standard EN 60068-2-6 EN 60068-2-6
Frequency 10,0 - 55,0 Hz 10,0 - 55,0 Hz
Max. amplitude 0,35 mm 0,35 mm
Airgap creepage
In accordance with the standard EN 60947-1 EN 60947-1
Overvoltage category III / II III / II
Pollution degree 2 2
Rated insulation voltage 250 V 250 V
Rated impulse withstand voltage 4,00 kV 4,00 kV
Protection type
Mounting (e.g. cabinet) IP54 IP54
Housing IP40 IP40
Terminals IP20 IP20

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 15
Mechanical data 750103 751103
Mounting position Any Any
Mechanical life 10,000,000 cycles 10,000,000 cycles
Material
Bottom PC PC
Front PC PC
Top PC PC
Cross section of external conduc-
tors with screw terminals
1 core flexible 0,25 - 2,50 mm², 24 - 12 AWG –
2 core with the same cross sec-
tion, flexible with crimp connec-
tors, no plastic sleeve
0,25 - 1,00 mm², 24 - 16 AWG –
2 core with the same cross sec-
tion, flexible without crimp con-
nectors or with TWIN crimp con-
nectors
0,20 - 1,50 mm², 24 - 16 AWG –
Torque setting with screw terminals 0,50 Nm –
Connection type Screw terminal Spring-loaded terminal
Mounting type plug in plug in
Cross section of external conduc-
tors with spring-loaded terminals:
flexible with/without crimp connec-
tor
–0,20 - 2,50 mm², 24 - 12 AWG
Spring-loaded terminals: Terminal
points per connection
–2
Stripping length – 9 mm
Dimensions
Height 98,0 mm 100,0 mm
Width 17,5 mm 17,5 mm
Depth 120,0 mm 120,0 mm
Weight 140 g 140 g
The standards current on 2009-12 apply.
Safety characteristic data
Operating
mode
EN ISO
13849-1:
2006
PL
EN ISO
13849-1:
2006
Category
EN IEC
62061
SIL CL
EN IEC
62061
PFHD[1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO
13849-1:
2006
TM[year]
Safety con-
tacts, instan-
taneous
PL e Cat. 4 SIL CL 3 2,31E-09 SIL 3 2,03E-06 20
All the units used within a safety function must be considered when calculating the safety
characteristic data.

PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 16
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.
ATTENTION!
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 switching frequency and the load on the relay output. If the
service life graphs are not accessible, the stated PFH value can be used irrespective of the
switching frequency and the load, as the PFH value already considers the relay's B10d val-
ue as well as the failure rates of the other components.
Order reference
Order reference
Product type Features Terminals
Order
no.
PNOZ s3 24 V DC Screw terminals 750 103
PNOZ s3 C 24 V DC Spring-loaded terminals 751 103
EC declaration of conformity
This product/these products meet the requirements of the directive 2006/42/EC for machin-
ery of the European Parliament and of the Council. The complete EC Declaration of Con-
formity is available on the Internet at www.pilz.com/downloads.
Representative: Norbert Fröhlich, Pilz GmbH & Co. KG, Felix-Wankel-Str. 2, 73760 Ostfil-
dern, Germany

...
Sachnummer Printed in Germany
© Pilz GmbH & Co. KG, 2011
[phone]
[email protected]
Pilz GmbH & Co. KG
Felix-Wankel-Straße 2
73760 Ostfildern, Germany
Telephone: [phone]
Telefax: [phone]
E-Mail: [email protected]
Internet: www.pilz.com
Technical support
In many countries we are
represented by our subsidiaries
and sales partners.
Please refer to our homepage
for further details or contact our
headquarters.
InduraNET p®, Pilz®, PIT®, PMCprotego®, 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 Te chnical Support if you have any questions.
21395-EN-10, 2013-05 Printed in Germany © Pilz GmbH & Co. KG, 2011
Back cover