Pizzato ST series safety sensors with RFID technology Data Sheet

4

ST series safety sensors with RFID technology

Introduction

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-D1T ST DD310MK-D1T ST 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-F31 ST 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 ms t = 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

2 1 ‑ ‑ ‑
2 1 2 ‑ ‑
2 1 2 1 ‑
2 1 2 ‑ 1
2 1
2 1
2 1

O

signalling

outputs

(inverted) ‑ ‑ ‑
(inverted) 2 ‑ ‑
(inverted) 2 1 ‑

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

Connection type

cable, length: 0.1 m, with M12 connector

0.1

(not available with version ST D•2••••)

0.5

cable, length: 0.5 m

…

….

2

cable, length: 2 m (standard)

…

….

10

cable, length: 10 m

K

integrated M12 connector

Cable or connector type

N

PVC cable IEC60332‑1 (standard)
PUR cable, halogen free

H

(not available with version ST D•2••••)

M

M12 connector

Code structure for single sensor

Output direction, connections

D

output at the right

L

output at the left

Inputs and outputs

42
82

OS

safety

outputs

2 1 2 1
2 1

O

signalling

outputs

(inverted) 2 1

Supply voltage

0

24 Vdc

1

12 … 24 Vdc

Code structure for actuator

ST DD420N2

Connection type

cable, length: 0.1 m, with M12 connector

0.1

(not available with version ST D•2••••)

0.5

cable, length: 0.5 m

…

IS
safety
inputs

I

programming

inputs

Cable or connector type

Attention! The feasibility of a code number does not mean the effective availability of a product. Please contact our sales office.

Attention! Individual sensors are initially programmed with the code of the actuators with low coding level •0 T.

….

2

cable, length: 2 m (standard)

…

….

10

cable, length: 10 m

K

integrated M12 connector

N

PVC cable IEC60332‑1 (standard)
PUR cable, halogen free

H

(not available with version ST D•2••••)

M

M12 connector

Actuation distance

D

E

General Catalogue Safety 2017-2018

actuation distance 12 mm
actuation distance 20 mm

SM D1T

Actuator

low level coded actuator

0T

the sensor recognises any type •0T actuator

high level coded actuator

1T

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:

Connection with safety modules

CS AR-05••••; CS AR-06••••; CS AR-08••••;
CS AT-0•••••; CS AT-1•••••; CS MP•••••.

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 degree 3
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

: 0.25 A

th2

: 5 mA

e1

: 0.25 A

e2

: 0.5 mA

m2

: 0.1 A

e3

Actuation data

Assured operating distance Sao:
Assured release distance Sar:
Rated operating distance Sn:
Rated release distance Snr:
Repeat accuracy:
Differential travel:
Max. switching frequency:
Distance between two sensors:

Power supply electrical data

Rated operating voltage Ue SELV: 24 Vdc ‑15% … +10% (24 Vdc versions)

Operating current at Ue voltage:

‑ minimum: 40 mA

‑ 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 actuator SM 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-D1T ST DL310M0.1-D1T

ST DD420M0.1-D1T ST DL420M0.1-D1T

ST DD510M0.1-D1T ST 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•-D1T ST DL210N•-D1T ST DD210MK-D1T ST DL210MK-D1T
ST DD310N•-D1T ST DL310N•-D1T ST DD310MK-D1T ST DL310MK-D1T
ST DD420N•-D1T ST DL420N•-D1T ST DD420MK-D1T ST DL420MK-D1T
ST DD510N•-D1T ST DL510N•-D1T ST DD510MK-D1T ST DL510MK-D1T

To order a product with E•T actuator replace D with E in the codes shown above. Example: ST DD310M0.1-D•T  ST 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 DD420M0.1 ST 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 DD420MK ST 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 D0T SM E0T

SM D1T SM 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 type Output with cable Output 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

General General, mobile installation General

03VV-F 03E7Q-H 03VV-H

PVC PUR Halogen Free PVC

IEC 60332-1-2
IEC 60332-1-3

94 mm 70 mm 90 mm

7 mm 7 mm 5 mm

80 mm 80 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 EAC CE TUV EAC CE TUV EAC

N H

2

/ UL 758 ISO 6722-1

/ 300 m/min. 50 m/min

/ 30 m/s2 5 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).

+ Vcc

ST

OS1 OS2

Pizzato Elettrica CS

series safety module

Compatible safety modules

Signalling

contacts

Sensors

ST D••••••

Safety module

Safety

modules

neous safety

Instanta‑

contacts

output contacts

Delayed safety

contacts

CS AR-05•••• 3NO / 1NC
CS AR-06•••• 3NO / 1NC
CS AR-08•••• 2NO / /
CS AT-0••••• 2NO 2NO 1NC
CS AT-1••••• 3NO 2NO /
CS MP•••••• see page 255
CS MF•••••• see page 283

All ST series sensors can be connected, provided that compatibility is
checked, to safety modules or safety PLCs with OSSD inputs.

+Vcc

IS1 IS2

SM

SM

SM

series safety module

OS1 OS2

IS1 IS2

OS1 OS2

IS1 IS2

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.

IS1 IS2

SM

OS1 OS2

IS1 IS2

SM

OS1 OS2

IS1 IS2

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.

LED Function

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 PWR ACT 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.

Actuator in safe area.

RUN

O3 signalling output active.
Actuator in limit activation zone, O3 active.

Recommended action: bring the sensor

RUN

back to the safe area.

Activation of the inputs. Actuator in

RUN

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

+

IS1 IS2

O3

OS1 OS2

IS1 IS2

O3

OS1 OS2

IS1 IS2

OS1 OS2

K1 K2

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.

+

IS1 IS2

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 conguration 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

S21 S22

S12

CS

S35

S33

S52

S34

A2

-

Connections with CS AT-0••••• / CS AT-1••••• safety modules

Input configuration with monitored start

2 channels / Category 4 / up to SIL 3 / PL e

OS2

S31

-

A2

IS2

S33

S34

A2

-

A1

+

A1

S21 S22

+

IS1

ST

OS1

S12

CS

S35

For features of the safety modules see page 191.

Internal connections with cable

ST D•2••N•

cable colour connection

brown A1(+)
red/white OS1
blue A2(‑)
black/white OS2
black O3

ST D•6••N•

cable colour connection

brown A1(+)
red IS1
blue A2(‑)
red/white OS1
black O3
purple IS2
black/white OS2
purple/white not connected

ST D•3••N•
ST D•7••N•

A1

S21 S22

S12

S52

CS

S34

A2

-

Connections with CS MP••••0 safety modules

The connections vary according to the program of the module

Category 4/ up to SIL 3 / PL e

OS2

-

A2

IS2

CS

+

A1

IS1

OS1

+

A1

IS1

ST ST

OS1

Application example on page 254

ST D•4••N•

cable colour connection

brown A1(+)
red IS1
blue A2(‑)
red/white OS1
black O3
purple IS2
black/white OS2
purple/white I3

ST D•8••N•

cable colour connection

brown A1(+)
red IS1
blue A2(‑)
red/white OS1
black O3
purple IS2
black/white OS2
purple/white EDM

IS2

OS2

-

A2

ST D•5••N•

Internal connections with connector

ST D•2••M•
ST D•6••M•

pin connection

1

1 A1(+)

42

2 OS1
3 A2(‑)

5

3

4 OS2
5 O3

Legend

A1‑A2 supply
IS1‑IS2 safety inputs

OS1‑OS2 safety outputs
O3 signalling output

1

2

345

7

6

8

Series connection

To simplify series connections of the devices,
various M12 connectors are available that allow
complete wiring.

This solution significantly reduces installation
times while at the same time maintaining the
maximum safety levels PL e and SIL 3.

For further information see page 304.

45

ST D•3••M•
ST D•7••M•

pin connection

1 A1(+)
2 IS1
3 A2(‑)
4 OS1
5 O3
6 IS2
7 OS2
8 not connected

ST D•4••M•
ST D•8••M•

pin connection

1

7

2

345

I3 programming input
EDM input for monitoring of NC contacts of the contactors

OS2

OS1

A2

A1

1 A1(+)

6

2 IS1
3 A2(‑)

8

4 OS1
5 O3
6 IS2
7 OS2
8 I3

I4

ST D•5••M•

pin connection

1

7

6

8

1 A1(+)
2 IS1
3 A2(‑)
4 OS1

2

345

5 O3
6 IS2
7 OS2
8 EDM

Female connectors see page 299

General Catalogue Safety 2017-2018

Operating distances SM D•T actuator

4

25

20

15

10

5

0

Operating distances SM E•T actuator

30

25

20

15

10

25

20

15

10

5

0

‑20 ‑15 ‑10 ‑5 5 10 15 20‑20 ‑15 ‑10 ‑5 5 10 15 20

30

25

20

15

10

5

0

‑20 ‑15 ‑10 ‑5 5 10 15 20

Legend:

Rated operating distance sn (mm)
Rated release distance snr (mm)

Note: The progress of the activation areas is for reference only.

Dimensional drawings

ST DD•••N• sensor with cable at the right

18

6.8

25

8.5

4.3

5.6
13

3

Ø

60
72

10.6

ST DL•••N• sensor with cable at the left ST DL•••M0.1 sensor with cable and M12

4.3

18

25

6.8

8.5

10.6

3 5.6

60
72

13
Ø

SM D•T actuator

45

12.512.5

25

18

33

279 9

3 3

27 99

4.2

4.2

ST DD•••MK sensor with M12 connector at the
right

18

5.63

25

6.8

9.5

ST DL•••MK sensor with M12 connector at the
left

3 5.6

M12

SM E•T actuator

40

28

4.2

7.5 7.535

16

60

7215.5

50

3 3

5

0

‑20 ‑15 ‑10 ‑5 5 10 15 20

All values in the drawings are in mm

ST DD•••M0.1 sensor with cable and M12
connector at the right

4.3

M12x 1

60

15.5

72

4.3

18

25

6.8

8.5

4.2

18

25

6.8

8.5

connector at the left

13
Ø

9.456072

M12x 1

60

3 5.6

4.2

5.6

3

9.4572

M12x 1

4.2

6.8

8.5

 The 2D and 3D files are available at www.pizzato.com

13
Ø

18

25

General Catalogue Safety 2017-2018

46