In combination with the corresponding safety modules, the sensors of the ST series are suitable for the monitoring of
protective devices on machines without inertia and allow the system in which they are used to reach a safety category
up to SIL 3 acc. to EN 62061 as well as up to PL e and Category 4 acc. to EN ISO 13849‑1.
These sensors use RFID (Radio Frequency IDentification) technology and provide high protection against possible
manipulation thanks to the uniqueness of the codes transmitted by the actuator. Because they have no mechanical
elements, they guarantee a long service life even in applications with frequent operating cycles and under harsh envi‑
ronmental conditions.
Maximum safety with a single device
The sensors of the ST series are constructed with redundant electronics. As a result, the maximum PL e and
wiring in the field and allows faster installation. Inside the control cabinet, the two electronic safety outputs must be connected to a safety module
with OSSD inputs or to a safety PLC.
SIL 3 safety levels can still be achieved through the use of a single device on a guard. This avoids expensive
Series connection of multiple sensors
One of the most important features of the ST series from Pizzato Elettrica is the possibility of connecting up to
32 sensors in series, while still maintaining the maximum safety level (PL e) laid down in EN 13849‑1.
ble in safety systems which have a safety module at the end of the
chain that monitors the outputs of the last ST sensor.
The fact that the PL e safety level can be maintained even with 32
sensors connected in series demonstrates the extremely secure
structure of each sensor of the ST series.
This connection type is permissi‑
ST DD310MK-D1TST DD310MK-D1TST DD310MK-D1T
Safety module
Pizzato Elettrica CS
series
Series connection with other devices
The ST series features two safety inputs and two safety outputs, which can be connected in series with other
example, stainless steel safety hinges (HX BEE1 series), transponder sensors (ST series) and door lock sensors (NG or NS series) can be con‑
nected in series while still maintaining the maximum PL e and SIL 3 safety levels.
HX BEE1
High level coded actuators
The ST series is provided with an electronic system
based on RFID technology to detect the actuator.
This allows to provide each actuator with different
coding and makes it impossible to tamper with
a device by using another actuator of the same
series. Millions of different coding combinations
are possible for the actuators. They are therefore
classified as high level coded actuators, according
to EN ISO 14119.
Pizzato Elettrica safety devices. This option allows the creation of safety chains containing various devices. For
HX BEE1
Safety module
ST DD310MK-D1TNG 2D1D411A-F31ST DD310MK-D1TNG 2D1D411A-F31
Pizzato Elettrica CS
series
Protection degrees IP67 and IP69K
These devices are designed to be used in
the toughest environmental conditions and
they pass the IP67 immersion test acc. to
EN 60529. They can therefore be used in all
environments where maximum protection
their special design, these devices are suitable for use in equipment
subjected to cleaning with high pressure hot water jets. These devices
meet the IP69K test requirements according to ISO 20653 (water jets
with 100 bar and 80°C).
degree of the housing is required. Due to
Wide actuation range
By utilising the properties of RFID technology, the
sensors of the ST series have a wide actuation
range, making them very well suited for applica‑
tions with large tolerances or where mechanical
properties change over time.
37
Actuation from many directions
The sensors of the ST series
from Pizzato Elettrica were desi‑
gned to be activated from various
directions, thereby providing the
customer with maximum flexibi‑
lity when positioning the sensors
on the guards. Furthermore, the
SM D•T actuator can be secu‑
red in two mutually orthogonal
directions.
General Catalogue Safety 2017-2018
4
Programmability
Pizzato Elettrica supplies a pro‑
grammable version of the ST series
sensors. With a simple and brief ope‑
ration, the sensor can be program‑
med to recognise the code of a new
actuator.
By activating a special input, the
sensor is switched to a safe state,
during which it waits for a new code
to be accepted. As the actuator
approaches, the ST sensor performs
a number of checks on the code
being received, whereby the code must adhere to certain parameters
of RFID technology.
If the checks are successful, the sensor uses LEDs to signal the suc‑
cessful completion of the procedure.
After programming has been completed, the sensor only recognises
the code of the last programmed actuator, thereby preserving the
safety level and the reliability of the system in which it is installed.
00100110...
Stainless steel fixing plates
The stainless‑steel fixing plates for the ST
sensors not only protect the mounting eyes
during installation on surfaces that are not
perfectly flat, they also help the sensor better
withstand mechanical loads. As a result, the
system is safer and more reliable.
Double protection against tampering
The tamper protection offered by the pro‑
tective caps can be increased further.
Pan head safety screws with one‑way
fitting are available for this purpose.
Devices secured with this type of screw
cannot be tampered with using common
tools. See accessories on page 310.
Laser engraving
All devices are marked using a dedi‑
cated indelible laser system. These
engravings are therefore suitable for
extreme environments too. Thanks to
this system that does not use labels,
the loss of plate data is prevented
and a greater resistance of the mar‑
king is achieved over time.
Short signal propagation delay
One of the main features of the ST sensors is the short signal propaga‑
tion time of approx. 7 ms after deactivation of the inputs.
This short signal propagation time is particularly advantageous for sen‑
sors connected in series.
ST ST
t = 7 mst = 7 ms
Safety module
Protection against tampering
Each sensor and actuator of the ST series
is supplied with protective caps. Not only
do the caps prevent dirt from accumula‑
ting and simplify cleaning, they also block
access to the fastening screws of the
actuator. As a result, standard screws can
be used instead of tamper‑proof screws.
Insensitivity to dirt
The sensors are completely sealed
and retain their safety characteristics
even in the presence of dirt or depo‑
sits (not ferromagnetic material). This
characteristic, combined with the
design without recesses, makes them
particularly suitable for use in the agri‑
cultural and food industries.
Four LEDs for immediate diagnosis
As the LEDs have been designed
for quick immediate diagnosis, the
status of each input and output is
highlighted by one specific LED. By
knowing which device is active and
which door is open, it is possible to
quickly identify an interruption in the
safety chain as well as any internal
device errors. All of this at a glance,
without needing to decode complex flashing sequences.
External device monitoring
On request, the switch can be supplied with EDM
function (External Device Monitoring). In this case,
the switch itself checks the proper function of the
devices connected to the safety outputs. These devices (usually relays
or safety contactors) must send a feedback signal to the EDM input,
which checks that the received signal is consistent with the state of
the safety outputs.
General Catalogue Safety 2017-2018
Versions with increased actuation distance
In addition to the standard actuation
distance of 12 mm, sensors with
an actuation distance of 20 mm are
also available. The increased actua‑
tion distance of the sensors is ideal
for installation situations in which it
is not possible to ensure that the
actuator approaches the sensor in
a precise and stable manner.
Inverted signalling output
In addition to the standard version, a version with inverted function of
signalling output O3 is available to help meet the various needs of the
customers.
38
4
ST series safety sensors with RFID technology
Selection diagram
SENSOR
ACTUATORS
ST DD•••N•
PVC cable
at the right
ST DD•••MK
integrated M12 connector
at the right
OUTPUT TYPE
SM D•T
actuation distance 12 mm
integrated M12 connector
SM E•T
actuation distance 20 mm
ST DL•••N•
PVC cable
at the left
ST DL•••MK
at the left
39
ST DD•••M0.1
cable, length: 0.1 m,
with M12 connector
at the right
product option
accessory sold separately
ST DL•••M0.1
cable, length: 0.1 m,
with M12 connector
at the left
General Catalogue Safety 2017-2018
Attention! The feasibility of a code number does not mean the effective availability of a product. Please contact our sales office.
Code structure for sensor with actuator
ST DD420N2-D1T
4
Output direction, connections
D
output at the right
L
output at the left
Inputs and outputs
OS
safety
outputs
21
31
42
51
61
71
82
Note: versions 21, 31, 51, 61, 71 are only supplied together with an actuator
21‑‑‑
212‑‑
2121‑
212‑1
21
21
21
O
signalling
outputs
(inverted)‑‑‑
(inverted)2‑‑
(inverted)21‑
IS
safety
inputs
I
programming
inputs
Supply voltage
0
24 Vdc
1
12 … 24 Vdc
Attention! The feasibility of a code number does not mean the effective availability of a product. Please contact our sales office.
EDM
inputs
Actuator
low level coded actuator
D0T
the sensor recognises any type D0T actuator
high level coded actuator
D1T
the switch recognises one single type D1T actuator
low level coded actuator
E0T
the sensor recognises any type E0T actuator
high level coded actuator
E1T
the switch recognises one single type E1T actuator
the sensor recognises one single type •1T actuator
40
4
ST series safety sensors with RFID technology
Main features
• Actuation without contact, using RFID
technology
• Digitally coded actuator
• Protection degrees IP67 and IP69K
• 4 LEDs for status display of the sensor
• Actuators with various actuation distances
Quality marks:
UL approval: E131787
EC type examination certificate:
M6A 161075157012
TÜV SÜD approval: Z10 12 11 75157 004
EAC approval: RU C-IT.AД35.В.00454
In compliance with standards:
EN ISO 14119, IEC 61508‑1, IEC 61508‑2,
IEC 61508‑3, IEC 61508‑4, EN ISO 13849‑1,
EN ISO 13849‑2, EN ISO 14119, EN 62061,
EN 60947‑5‑3,EN 60947‑5‑2, EN 60947‑1,
EN 61326‑1, EN 61326‑3‑1, EN 61326‑3‑2,
ETSI 301 489‑1, ETSI 301 489‑3, ETSI 300 330‑2,
UL 508, CSA 22.2 No.14
Compliance with the requirements of:
Machinery Directive 2006/42/EC
EMC Directive 2014/30/EC
Directive 2014/53/EU ‑ RED
FCC Part 15
Connection with safety modules for safety
applications:
When connected to the safety module, the
sensor can be classified as a control circuit
device up to PDDB (EN 60947‑5‑3).
The system can be used in safety circuits up
to PL e/SIL 3/category 4 in accordance with
EN ISO 13849‑1.
Features approved by UL
Utilization categories: 24 Vdc, 0.25 A (resistive load).
Inputs supplied by remote class 2 source or limited voltage and
limited energy
Housing features type 1, 4X “indoor use only”, 12.
Accessory for CS series.
In compliance with standard: UL 508, CSA 22.2 No.14
Please contact our technical department for the list of approved products.
Technical data
Housing
Housing made of glass fibre reinforced technopolymer, self‑extinguishing.
Versions with integrated cable 6 x 0.5 mm2 or 8 x 0.34 mm2, length 2 m, other lengths
0.5 m … 10 m on request
Versions with M12 stainless steel connector
Versions with 0.1 m cable length and integrated M12 connector, other lengths
0.1 … 3 m on request
Protection degree: IP67 acc. to EN 60529
General data
For safety applications up to:SIL 3 acc. to EN 62061
Interlock, no contact, coded:type 4 acc. to EN ISO 14119
Level of coding acc. to EN ISO 14119:high with D1T or E1T actuator
Safety parameters:
MTTF
:4077 years
D
:1.20E‑11
PFH
D
DC:High
Service life:20 years
Ambient temperature for sensors without cable:‑25 … +70°C
Ambient temperature for sensors with cable:see table page 42
Storage and transport temperature:‑25 … +85°C
Vibration resistance:10 gn (10 … 150 Hz) acc. to IEC 60068‑2‑6
Shock resistance:30 gn; 11 ms acc. to EN 60068-2-27
Pollution degree3
Screw tightening torque:0.8 … 2 Nm
Electrical data of IS1/IS2/I3/EDM inputs
Rated operating voltage Ue1:24 Vdc or 12 … 24 Vdc
Rated current consumption I
Electrical data of OS1/OS2 safety outputs
Rated operating voltage Ue2:24 Vdc or 12 … 24 Vdc
Output type:PNP type OSSD
Maximum current per output I
Minimum current per output I
Thermal current I
Utilization category:DC13; U
Short circuit detection:Yes
Overcurrent protection:Yes
Internal self‑resettable protection fuse:0.75 A
Duration of the deactivation impulses at the safety
outputs:
Permissible capacitance between outputs:< 200 nF
Permissible capacitance between output and ground: < 200 nF
Response time upon deactivation of IS1/IS2 inputs:typically 7 ms, max. 12 ms
Response time upon actuator removal:typically 80 ms, max. 150 ms
Electrical data of O3 signalling output
Rated operating voltage Ue3:24 Vdc or 12 … 24 Vdc
Output type:PNP
Maximum current per output I
Utilization category:DC12; U
Short circuit detection:No
Overcurrent protection:Yes
Internal self‑resettable protection fuse:0.75 A
‑ with all outputs at maximum power:0.7 A
Rated insulation voltage U
Rated impulse withstand voltage U
External protection fuse:1 A type F or equivalent device
Overvoltage category:III
:32 Vdc
i
:1.5 kV
imp
IP69K acc. to ISO 20653
(Protect the cables from direct high‑pressure and high‑
temperature jets)
PL e acc. to EN ISO 13849‑1
low with D0T or E0T actuator
=24 Vdc, Ie2=0.25 A
e2
< 300 µs
=24 Vdc; Ie3=0.1A
e3
SM D•T actuatorSM E•T actuator
10 mm
16 mm
12 mm
14 mm
≤ 10 % s
n
≤ 20 % s
n
1 Hz
min. 50 mm
12 … 24 Vdc ‑30% … +25%
(12 … 24 Vdc versions)
16 mm
27 mm
20 mm
23 mm
Features approved by TÜV SÜD
Supply voltage:24 Vdc
Rated operating current (max.):0.25 A
Ambient temperature:‑25 °C … + 70°C
Protection degree:IP67
PL, category:PL e, category 4
In compliance with standards:
2006/42/EEC Machine Directive, EN ISO 13849‑1:2008, EN 60947‑5‑3/
A1:2005, EN 50178:1997, EN 61508‑1:2010 (SIL 3), EN 61508‑2:2010 (SIL 3),
EN 61508‑3:2010 (SIL 3),EN 61508‑4:2010 (SIL 3), IEC 62061:2005 (SIL CL 3)
Please contact our technical department for the list of approved products.
41
General Catalogue Safety 2017-2018
Selection table for sensors with high level coded actuators
4
OS safety outputs
O signalling outputs
IS safety inputs
I programming inputs
EDM inputs
2 1 ‑ ‑ ‑‑
2 1 2 ‑ ‑‑
2 1 2 1 ‑•
2 1 2 ‑ 1‑
cable, length: 0.1 m, with
M12 connector at the right
Programmable
ST DD310M0.1-D1TST DL310M0.1-D1T
ST DD420M0.1-D1TST DL420M0.1-D1T
ST DD510M0.1-D1TST DL510M0.1-D1T
cable, length: 0.1 m, with
M12 connector at the left
integrated cable, at
the right
integrated cable, at
the left
M12 connector, at the
right
ST DD210N•-D1TST DL210N•-D1TST DD210MK-D1TST DL210MK-D1T
ST DD310N•-D1TST DL310N•-D1TST DD310MK-D1TST DL310MK-D1T
ST DD420N•-D1TST DL420N•-D1TST DD420MK-D1TST DL420MK-D1T
ST DD510N•-D1TST DL510N•-D1TST DD510MK-D1TST DL510MK-D1T
To order a product with E•T actuator replace D with E in the codes shown above. Example: ST DD310M0.1-D•TST DD310M0.1-E•T
Selection table for sensors
OS safety outputs
O signalling outputs
IS safety inputs
I programming inputs
EDM inputs
2 1 2 1 ‑•
cable, length: 0.1 m, with
M12 connector at the right
Programmable
ST DD420M0.1ST DL420M0.1
cable, length: 0.1 m, with
M12 connector at the left
integrated cable, at
the right
integrated cable, at
the left
M12 connector, at the
right
ST DD420N•ST DL420N•ST DD420MKST DL420MK
Selection table for actuators
The use of RFID technology in ST series sensors makes them suitable for several applications.
Pizzato Elettrica offers two different versions of actuators, in order to best suit customers’ spe‑
cific needs.
Type •0T actuators are all encoded with the same code. This implies that a sensor associated with
Level of coding
acc. to
ISO 14119
low
high
actuation distance
12 mm
actuation distance
SM D0TSM E0T
SM D1TSM E1T
20 mm
an actuator type •0T can be activated by other actuators type •0T.
Type •1T actuators are always encoded with different codes. This implies that a sensor associated
with an actuator type •1T can be activated only by a specific actuator. Another •1T type actuator
will not be recognised by the sensor until a new association procedure is carried out (reprogram‑
ming). After reprogramming, the old actuator type •1T will no longer be recognized.
M12 connector, at
the left
M12 connector, at
the left
The 2D and 3D files are available at www.pizzato.comAccessories See page 299
Ambient temperature for sensors with cable
Connection typeOutput with cableOutput with cable and M12
Cable type
Conductors
Application field
In compliance with standards
Sheath
Self-extinguishing
Oil resistant
Max. speed
Cable features
Max. acceleration
Minimum bending radius
Outer diameter
End stripped
Copper conductors
Cable, fixed installation
Cable, flexible installation
Ambient
Cable, mobile installation
temperature
Approvals
8x0.34 mm
GeneralGeneral, mobile installationGeneral
03VV-F03E7Q-H03VV-H
PVCPUR Halogen FreePVC
IEC 60332-1-2
IEC 60332-1-3
94 mm70 mm90 mm
7 mm7 mm5 mm
80 mm80 mm/
Class 5
IEC 60228
-25°C +70°C-25°C +70°C-25°C +70°C
-5°C +70°C-25°C +70°C-25°C +70°C
CE cULus TUV EACCE TUV EACCE TUV EAC
NH
2
/UL 758ISO 6722-1
/300 m/min.50 m/min
/30 m/s25 m/s2
/-25°C +70°C-15°C +70°C
8x0.34 mm
IEC 60332-1-2
IEC 60332-1-3
Class 6
IEC 60228
Items with code on green background are stock items
connector
2
8x0.25 mm
IEC 60332-3
CEI 20-22 II
Class 6
IEC 60228
2
General Catalogue Safety 2017-2018
42
4
ST series safety sensors with RFID technology
Complete safety system
The use of complete and tested solutions guarantees the electrical
compatibility between the sensors of the ST series and the safety
modules from Pizzato Elettrica, as well as high reliability. The sensors
have been tested with the modules listed in the adjacent table.
SM
ST sensors can be used as individual devices provided that the
outputs be evaluated by a Pizzato Elettrica safety module (see table
for combinable safety modules).
All ST series sensors can be connected, provided that compatibility is
checked, to safety modules or safety PLCs with OSSD inputs.
+Vcc
IS1IS2
SM
SM
SM
series safety module
OS1 OS2
IS1IS2
OS1 OS2
IS1IS2
OS1 OS2
Pizzato Elettrica CS
O3
ST
O3
ST
O3
ST
PLC
Possibility of series connection of multiple sensors for simplifying
the wiring of the safety system, whereby only the outputs of the last
sensor are evaluated by a Pizzato Elettrica safety module (see table
with compatible safety modules). Each ST sensor is equipped with
a signalling output, which – depending on the version – is activated
or deactivated when the respective guard is closed. Depending on
the specific requirements of the application, this information can be
evaluated by a PLC.
IS1IS2
SM
OS1 OS2
IS1IS2
SM
OS1 OS2
IS1IS2
SM
OS1 OS2
O3
ST
O3
ST
O3
ST
Pizzato Elettrica CS MP series
programmable safety module
Possibility of series connection of multiple sensors for simplifying
the wiring of the safety system, whereby only the outputs of the last
sensor are evaluated by a Pizzato Elettrica safety module of the CS MP
series. Both the safety‑relevant evaluation and the evaluation of the
signalling outputs are performed by the CS MP series.
Internal block diagram (ST D•5••••)
ACT
PWR
f2
O3
OUT
f3
OS1
OS2
f0
A2A1
EDM
f4
IN
f1
IS1
IS2
43
The adjacent diagram illustrates five logical, linked sub‑fun‑
ctions of the sensor.
Function f0 is a basic function and includes the monitoring of
the power supply as well as internal, cyclical tests.
Function f1 monitors the status of the inputs, whereas fun‑
ction f2 monitors the position of the actuator in the detection
area.
LEDFunction
ACT
state of actuator / O3 output
IN
status of safety inputs
OUT
status of safety outputs
PWR
Power supply / self‑diagnosis
Function f3 is intended to activate or deactivate the safety
outputs and check for any faults or short circuits in the outputs.
In the EDM versions, function f4 checks the EDM signal on state changes of the safety outputs.
The safety‑related function, which combines the sub‑functions mentioned above, only activates the
safety outputs if the input signals are correctly applied and the actuator is located within the safe
zone.
The status of each sub‑function is displayed by corresponding LEDs (PWR, IN, ACT, OUT), thereby
providing a quick overview of the operating status of the sensor.
General Catalogue Safety 2017-2018
Limit activation zone and safe activation zone (ST D•4••••)
When aligning the sensor with the actuator, the status LEDs use various colours to indicate whether the actuator is in the limit activation zone or
in the safe activation zone. The following figures use the ST DD420MK‑D1T sensor as an example.
4
ACT IN OUT PWRACT IN OUT PWR
Operating voltage is applied
to the sensor, (LED PWR on,
green), the inputs are ena‑
bled (LED IN on, green), the
outputs are deactivated (LED
OUT off). The actuator is out‑
If the actuator is moved inside
the safe activation zone (dark
grey area), the ACT LED on the
sensor illuminates (green) and
it activates the outputs (LED
OUT on, green).
side of the actuation zone
(LED ACT off).
Operating states (ST D•4••• •)
PWR
OUT
IN
ACT
LED
LED
LED
LED
state
Sensor off.
OFF
POWER ONInternal tests upon activation.
Sensor
Sensor with inactive inputs.
RUN
Activation of the inputs.
RUN
Input incoherence.
RUN
Recommended action: check for
presence and/or wiring of inputs.
safe area and safety outputs active.
Error on outputs.
Recommended action: check for any
short circuits between the outputs,
ERROR
outputs and ground or outputs and
power supply, then restart the sensor.
Internal error.
Recommended action: restart the
ERROR
sensor. If the failure persists, repla‑
ce the sensor.
Legend: = off = on = flashing = alternating colours
= indifferent
Description
ACT IN OUT PWR
When the actuator leaves the
safe zone, the sensor keeps
the safety outputs enabled.
Entry into the limit activation
zone (light grey area) is, howe‑
As soon as the actuator exits
the limit activation zone,
the sensor deactivates the
outputs and switches off the
OUT and ACT LEDs.
ACT IN OUT PWR
ver, indicated by the ACT LED
(orange/green, flashing).
External device monitoring (EDM)
A1
+
IS1
ST D•510••
OS1
K1
-
IS2
OS2
-
-
A2
EDM
K2
245.
This check is carried out by monitoring the EDM input (External Device
Monitoring as defined in EN 61496‑1) of the sensor.
SM
SM
SM
ST D•310••
ST D•310••
ST D•510••
+
The ST D•51••• version, in addi‑
tion to maintaining the operating
and safety characteristics of the
ST series, allows control of for-
cibly guided NC contacts of
contactors or relays control‑
led by the safety outputs of the
sensor itself. As an alternative to
+
the relays or contactors you can
use Pizzato Elettrica expansion
modules CS ME‑03. See page
+
IS1IS2
O3
OS1 OS2
IS1IS2
O3
OS1 OS2
IS1IS2
OS1 OS2
K1K2
O3
EDM
PLC
O3 ou t p ut inve r ted (S T D•6 • • • •, S T D•7• • • •, ST D• 8 • •• • )
The version with inverted O3 signalling output allows checking of the
actual electrical connection of the sensor by an external PLC. The O3
output will be activated when the actuator is removed and the OS
safety outputs are switched off.
+
IS1IS2
SM
OS1 OS2
Safety module
General Catalogue Safety 2017-2018
O3
ST
PLC
This version, with the IS safety inputs, can be used at the end of
a series of ST sensors, up to a maximum number of 32 devices, while maintaining the maximum PL e safety level according to
EN ISO 13849‑1.
For specific applications, this solution allows you to dispense with the
safety module connected to the last device in the chain.
44
4
Ixx
Ixx
Ixx
Ixx
ST series safety sensors with RFID technology
Connection with safety modules
Connections with CS AR-08•••• safety modules
Input configuration with monitored start
2 channels / Category 4 / up to SIL 3 / PL e
+
IS1
OS1
ST
IS2
OS2
A1
+
Connections with CS AR-05•••• / CS AR-06•••• safety modules
Input conguration per manual start (CS AR-05••••)
or monitored start (CS AR-06••••)
2 channels / Category 4 / up to SIL 3 / PL e
-
A2
+
+
A1
IS1
ST
OS1
OS2
-
A2
IS2
A1
S21S22
S12
CS
S35
S33
S52
S34
A2
-
Connections with CS AT-0••••• / CS AT-1••••• safety modules