Pilz PNOZ s2 Data Sheet
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ s2
Gertebild
][Bildunterschrift
Safety relay for monitoring E-STOP
pushbuttons and safety gates.
Approvals
PNOZ s2
SÜDDEUTSCHLAND
Zulassungen
Unit features
Gertemerkmale
` Positive-guided relay outputs:
– 3 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
` Safe separation of safety contacts
from all other circuits
` 1 semiconductor output
` Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Reset button
` A connector can be used to con-
nect 1 PNOZsigma contact expander module
` Operating modes can be set via ro-
tary switch
` LED indicator for:
` Supply voltage
` Input status, channel 1
` Input status, channel 2
` Switch status, safety contacts
` Reset circuit
` Error
` Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
Gertemerkmale
` See order reference for unit types
Unit description
Bestimmung/Gertebeschreibung NOT-AUS, Schutz_PNOZ
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
Safety features
][Sicherheitseigenscha ften Schaltgerät_allgem einer Teil
The relay meets the following safety
requirements:
` The circuit is redundant with built-in
self-monitoring.
` The safety function remains effec-
tive 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.
Sicherheitseigenschaften Zusatz - Sicherung DC_PNOZ
` The unit has an electronic fuse.
Block diagram
Blockschaltbild
A1 A2
=
Input
=
Power
Reset/
Start
S34
* Safe separation in accordance with EN 60947-1, 6 kV
Y32
K1
K2
23 33 41
13
14
24 34 42
*
unit
Interface
expansion
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-393-2010-08
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ s2
Function description
][Funktionen_einkanalig
` Single-channel operation: no re-
dundancy in the input circuit, earth
faults in the reset and input circuit
are detected.
][Funktionen_autoStart
` Automatic start: Unit is active once
the input circuit has been closed.
][Funktionen_manuStart
` Manual reset: Unit is active once
the input circuit is closed and then
the reset circuit is closed.
Timing diagram
1 2
Reset/Start
POWER/Input
Output safe
Output aux.
Out semi
t1 t2
t1 t2
Key
` Power: Supply voltage
` Reset/Start: Reset circuit S34
` Input: Input circuits A1-A2
` Output safe: Safety contacts 13-14,
23-24, 33-34
` Output aux: Auxiliary contacts 41-
42
` Out semi: Semiconductor
outputY32
][Funktionen_berStart_fall_Flanke
` Monitored reset with falling edge:
Unit is active once
– the input circuit is closed and
then the reset circuit is closed
and opened again.
– the reset circuit is closed and
then opened again once the input circuit is closed.
][Funktionen_berStart_steig_Flanke
` Monitored reset with rising edge:
Unit is active once the input circuit
is closed and once the reset circuit
][Zeitdiagramm_PNOZs_In_Ub_auto_manu_ueber1_ueber2_aux_Semi
ab
t1
t2
t1
t2
t3
` c: Automatic reset
` d: Manual reset
` e: Monitored reset with rising edge
` f: Monitored reset with falling edge
` a: Input circuit closes before reset
circuit
` b: Reset circuit closes before input
circuit
is closed after the waiting period
has elapsed (see technical details).
][Funktionen_Kontaktvervielfachung_PNOZsigma
` Increase in the number of available
instantaneous safety contacts by
connecting contact expander modules or external contactors/relays;
A connector can be used to connect 1 PNOZsigma contact expander module.
3
ab
t1
t2
t1
: Switch-on delay
` t
1
: Delay-on de-energisation
` t
2
: Waiting period
` t
3
: Waiting period reset circuit was
` t
4
t3
t2
closed
4
ab
t1
t2
t4
t1
t2
Wiring
][Verdrahtung_Si_unverz_1Hi_unverz
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24, 33-34 are
safety contacts, output 41-42 is an
` Use copper wire that can withstand
60/75 °C.
` Sufficient fuse protection must be
provided on all output contacts with
capacitive and inductive loads.
auxiliary contact (e.g. for display).
` To prevent contact welding, a fuse
should be connected before the
output contacts (see technical details).
` Calculation of the max. cable runs
in the input circuit:
l
max
R
lmax
=
I
max
Rl / km
R
= max. overall cable resist-
lmax
ance (see technical details)
/km = cable resistance/km
R
l
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-393-2010-08Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ s2
Preparing for operation
Betriebsbereitschaft herstellen PNOZs
` Supply voltage
Supply voltage AC DC
` Input circuit
Input circuit Single-channel Dual-channel
E-STOP
without detection of shorts across contacts
Safety gate
without detection of shorts across contacts
A1
A1
S1
L+
S1
L+
A1
A2
S1
L+
L-
` Reset circuit/feedback loop
Reset circuit/feedback loop Reset circuit Feedback circuit
Automatic reset
A1
S34
Manual/monitored reset
A1
S34
S3
` Semiconductor output
*
Y32
*Connect together the 0V connections on all the external power supplies
PLC Input
A1
S34
13 (23,33)
14 (24,34)
A1
S34
13 (23,33)
14 (24,34)
K5
K5
K6
K5
K6
K6
K5
K6
L1
N
S3
L1
N
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-393-2010-08
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