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 5 INTERNAL WIRING DIAGRAM

K1

K2

A1

S13

S14

Y1

Y2

13

23

24

14

S24

S23

A2

LED
CH1

LED
CH2

LED
PWR

L / +

N / -

LOGICA

LOGICA

 6 FAULTS

LED state

Possible fault

Recommended action

PWR CH1 CH2

- No power supply to the module.

- Wrong wiring.

- Power supply conductor/s cut.

- External fuse broken.

- Short circuit between channels.

- Input device with welded NO contact 

and functioning NC contact.

- Internal module fault.

Check the wiring and 

check the fuse.

If the fault persists, 

replace the module.

PWR CH1 CH2

- Wrong wiring.

- Actuation of the input devices in a 

time interval greater than 0.5 s.

- Internal module fault.

Check wiring and opera-

tion of the external input 

devices.

If the fault persists, 

replace the module. 

PWR CH1 CH2

- Wrong wiring.

- Actuation of the input devices in a 

time interval greater than 0.5 s.

- Internal module fault.

Check wiring and opera-

tion of the external input 

devices.

If the fault persists, 

replace the module.  

PWR CH1 CH2

- Wrong wiring.

- External contactors welded or expan-

sion module failure.

- Feedback circuit Y1/Y2 open.

- Contactor/s cut.

- Failure to actuate one or both input 

devices.

- Internal module fault

Check wiring and opera-

tion of the external input 

devices.

If the fault persists, 

replace the module. 

Legend:   = led on;   = led off.

 7 INSTRUCTIONS FOR PROPER USE

7.1 Installation

 Attention: Do not exceed the tightening torque of the terminal screws specified 

in the present operating instructions.

 Attention: Observe the wiring of the terminals: incorrect wiring can damage the 

device which may result in loss of the safety function.
- Install only inside a cabinet with protection degree not less than IP54 according to 
EN 60529.
- Always affix the device with the specific DIN rail adaptor acc. to EN 60715. 
- Do not stress the device with bending or torsion. 
- Do not modify or open the device for any reason.
- The device carries out an operator protection function. Any inadequate installation 
or tampering can cause serious injuries and even death, property damage, and eco-
nomic losses.
- These devices must not be bypassed, removed or disabled in any other way. 
- If the machine where the device is installed is used for a purpose other than that 
specified, the device may not provide the operator with efficient protection.
- The safety category of the system (according to EN ISO 13849-1), including the sa-
fety device, also depends on the external components connected to it and their type.
- Before installation, make sure the device is not damaged in any part.
- Before commissioning, check the correct functioning of the module according to the 
instructions of the operating diagrams (see paragraph OPERATION).
- Avoid excessive bending of connection cables in order to prevent any short circuits 
or power failures.
- Do not paint or varnish the device.
- Do not drill the device.
- Do not use the device as a support or rest for other structures, such as raceways, 
sliding guides or similar.
- Before commissioning, make sure that the entire machine (or system) complies with 
all applicable standards and EMC directive requirements.
- The documentation required for correct installation and maintenance is available 
online in various languages on the Pizzato Elettrica website.
- Should the installer be unable to fully understand the documents, the product must 
not be installed and the necessary assistance may be requested from the manufactu-
rer (see paragraph SUPPORT).

- Always attach the following instructions to the manual of the machine in which the 
device is installed.
- These operating instructions must be kept available for consultation at any time and 
for the whole period of use of the device.

7.2 Do not use in the following environments

- In environments where continual changes in temperature cause the formation of 
condensation inside the device.
- In environments where the application causes the device to be subjected to strong 
impacts or vibrations.
- In environments with the presence of explosive or flammable gases or dusts.
- In environments containing strongly aggressive chemicals, where the products used 
coming into contact with the device may impair its physical or functional integrity.
- Prior to installation, the installer must ensure that the device is suitable for use under 
the ambient conditions on site.

7.3 Maintenance and functional tests

 Attention: Do not disassemble or try to repair the device. In case of any malfun-

ction or failure, replace the entire device.
- The device installer is responsible for establishing the sequence of functional tests 
to which the device is to be subjected before the machine is started up and during 
maintenance intervals. 
- The sequence of the functional tests can vary depending on the machine complexity 
and circuit diagram, therefore the functional test sequence detailed below is to be 
considered as minimal and not exhaustive.
- Perform the following sequence of checks before the machine is commissioned and 
at least once a year (or after a prolonged shutdown):
1) Check that the safety module housing is undamaged and in good condition. If the 
housing is damaged, replace the entire device.
2) Check that all signalling LEDs are working.
3) Check that the electrical cables are firmly lodged inside the terminals and con-
nectors.
4) Check that during operation the module behaves according to the operating dia-
grams provided in section OPERATION.
- The device has been created for applications in dangerous environments, therefore it 
has a limited service life. Although still functioning, after 20 years from the date of ma-
nufacture the device must be replaced completely. The date of manufacture is placed 
next to the product code (see paragraph MARKINGS).

7.4 Wiring

 Attention: Do not install the safety module if voltage is present. Power the device 

only when the electrical circuits have been completely realized according to the speci-
fications indicated in the OPERATION paragraph. The first time you start the machine 
ensure that there are no people close to hazardous areas.
- Check that the supply voltage is correct before powering the device.
- Keep the charge within the values specified in the electrical operation categories.
- Only connect and disconnect the device when the power is off.
- When using plug-in-type terminal blocks, they may only be plugged in or unplugged 
if no supply voltage is present.
- Discharge static electricity before handling the product by touching a metal mass 
connected to earth. Any strong electrostatic discharge could damage the device.
- Power the safety module and the other devices connected to it from a single SELV/
PELV source and in accordance with the applicable standards (applies only to ver-
sions with a supply voltage of 12 V and 24 V).
- We recommend keeping the power supply of the safety module galvanically separa-
ted from the power section of the machine and keeping the connection cables of the 
module separated from the power cables.
- Always connect the protection fuse (or equivalent device) in series with the power 
supply for each device.
- Always connect the protection fuse (or equivalent device) in series to the safety 
electrical contacts.
- During and after the installation do not pull the electrical cables connected to the 
device. If excessive tension is applied to the cables, the device may be damaged.

7.5 Additional requirements for safety applications with operator protection 
functions

Provided that all previous requirements for the devices are fulfilled, for installations 
with operator protection function additional requirements must be observed.
- Utilization implies knowledge of and compliance with following standards: 
EN ISO 13849-1, EN 62061, EN 60204-1, EN ISO 12100, EN ISO 13851.
- In the risk analysis, take into account that in manual start mode a possible sticking of 
the start button can lead to an immediate activation of the module.
- If expansion modules or external contactors are used, make sure that they have 
forcibly guided contacts and connect in feedback an NC contact of each device. 

7.6 Limits of use

- Use the device following the instructions, complying with its operation limits and the 
standards in force.
- The devices have specific application limits (min. and max. ambient temperature, 
maximum currents, IP protection degree, etc.) These limitations are met by the device 
only if considered individually and not as combined with each other. 
- According to EU directives, this device is not intended for private use.
- The manufacturer’s liability is to be excluded in the following cases:
1) Use not conforming to the intended purpose.
2) Failure to adhere to these instructions or regulations in force.
3) Mounting not performed by qualified and authorised personnel.
4) Omission of functional tests.
- For the cases listed below, before proceeding with the installation contact our assi-
stance service (see paragraph SUPPORT):
a) In nuclear power stations, trains, airplanes, cars, incinerators, medical devices or 
any application where the safety of two or more persons depend on the correct ope-
ration of the device.

Summary of Contents for CS DM-20 Series

Page 1: ...ndo EN 62061 fino a Cat 1 PL c secondo EN ISO 13849 1 2015 Ingresso a 2 canali Contatti di uscita 2 contatti NO di sicurezza Collegamento dei canali d ingresso a potenziali opposti Funzione di rilevam...

Page 2: ...enti fortemente chimico aggressivi dove i prodotti utilizzati che vengono a contatto con il dispositivo possono comprometterne l integrit fisica o funzionale responsabilit dell installatore verificare...

Page 3: ...80 VA W Categorie di impiego secondo EN 60947 5 1 AC 15 50 60 Hz Ue 230 V Ie 3 A DC 13 6 cicli operazioni minuto Ue 24 V Ie 4 A Categoria di impiego secondo UL 508 C300 9 6 Conformit alle norme EN 602...

Page 4: ...up to category SIL 1 acc to EN 62061 up to to Cat 1 PL c acc to EN ISO 13849 1 2015 Input with 2 channels Output contacts 2 NO safety contacts Connection of input channels of opposite potentials Short...

Page 5: ...device The device installer is responsible for establishing the sequence of functional tests to which the device is to be subjected before the machine is started up and during maintenance intervals Th...

Page 6: ...VERSIONS ON REQUEST Special versions of the device are available on request These special versions may differ substantially from the indications in these operating instructions The installer must ensu...

Page 7: ...hronisme dans des circuits de s curit jusqu SIL 1 selon EN 62061 jusqu la cat 1 PL c selon EN ISO 13849 1 2015 Entr e 2 canaux Contacts de sortie 2 contacts NO de s curit Raccordement des canaux d ent...

Page 8: ...nant des substances chimiques fortement agressives et dans lequel les produits entrant en contact avec le dispositif risquent de compromettre son int grit physique et fonctionnelle L installateur du d...

Page 9: ...utable 1380 VA W Cat gories d utilisation selon EN 60947 5 1 AC 15 50 60 Hz Ue 230 V Ie 3 A DC 13 6 cycles de fonctionnement minute Ue 24 V Ie 4 A Cat gorie d utilisation selon UL 508 C300 9 6 Conform...

Page 10: ...als Mo dul f r Synchron berwachungen in Sicherheits Kreisen bis SIL 1 gem EN 62061 bis Kat 1 PL c gem EN ISO 13849 1 2015 Eingang mit 2 Kan len Ausgangskontakte 2 NO Sicherheits Kontakte Anschluss von...

Page 11: ...Ger t f hren k nnen Umgebungen in denen das Ger t anwendungsbedingt starken St en oder Vibra tionen ausgesetzt ist Umgebungen mit explosiven oder brennbaren Gasen oder St uben Umgebungen mit sehr agg...

Page 12: ...ximaler Strom pro Kontakt 6 A Thermischer Nennstrom im Freien Ith 6 A Maximaler Summenstrom Ith 2 36 A2 Minimaler Strom 10 mA Kontaktwiderstand 100 m Externe Absicherung 4 A Maximale schaltbare Last 1...

Page 13: ...ronizaci n en circuitos de seguridad hasta SIL 1 seg n EN 62061 hasta la cat 1 PL c seg n EN ISO 13849 1 2015 Entradas con 2 canales Contactos de salida 2 contactos NO de seguridad Conexi n de los can...

Page 14: ...colisiones o vibraciones al dispo sitivo En entornos con polvos o gases explosivos o inflamables En entornos con agentes qu micos muy agresivos donde los productos utilizados que entran en contacto c...

Page 15: ...aire libre Ith 6 A Suma m xima de corrientes Ith 2 36 A2 Corriente m nima 10 mA Resistencia de los contactos 100 m Fusible de protecci n externo 4 A Carga conmutable m xima 1380 VA W Categor a de emp...

Page 16: ...pe nostn ch obvodech do kategorie SIL 1 dle normy EN 62061 do kat 1 PLc podle normy ENISO13849 1 2015 Vstup s 2 kan ly V stupn kontakty 2 bezpe nostn kontakty NO P ipojen vstupn ch kan l s opa n mi po...

Page 17: ...jak koli poruchy nebo z vady vym te cel za zen Instala n technik je odpov dn za stanoven term n funk n ch zkou ek kter m m b t za zen podrobeno p ed spu t n m stroje a b hem interval dr by Term ny fun...

Page 18: ...2 ES sm rnice o EMK 2014 30 EU sm rnice RoHS 2011 65 EU 10 SPECI LN VERZE NA VY D N Speci ln verze za zen jsou k dispozici na vy d n daje o speci ln verzi se mohou podstatn li it od informac v tomto n...

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