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Pizzato Elettrica Srl
via Torino, 1
36063 MAROSTICA (VI)
ITALY

e-mail: [email protected]
web site:  www.pizzato.com

Phone:   +39.0424.470.930

ZE FOG39A19-EU

4/12

 1 INFORMATION ON THIS DOCUMENT

1.1 Function

The present operating instructions provide information on installation, connection and 
safe use for the following articles: 

CS AR-05••••, CS AR-06••••.

1.2 Target audience

The operations described in these operating instructions must be carried out by quali-
fied personnel only, who are fully capable of understanding them, and with the techni-
cal qualifications required for operating the machines and plants in which the safety 
devices are to be installed.

1.3 Application field

These instructions apply exclusively to the products listed in paragraph Function, and 
their accessories.

1.4 Original instructions

The Italian language version is the original set of instructions for the device. Versions 
provided in other languages are translations of the original instructions.

 2 SYMBOLS USED

 This symbol indicates any relevant additional information

 Attention: Any failure to observe this warning note can cause damage or mal-

function, including possible loss of the safety function.

 3 DESCRIPTION

3.1 Device description

The safety device described in this manual is defined according to the Machinery 
Directive 2006/42/EC as logic component for safety functions.
The safety modules to which these usage instructions refer are devices specifically 
designed and manufactured for use on industrial machines. Upon opening of at least 
one channel, the safety function ensures that the safety relays must open their output 
contacts within the defined reaction time. The safety outputs of the module are ena-
bled only if the channels CH1 and CH2 are consistently closed and after activating 
the START signal.

3.2 Device functions

 This device is suitable for the following applications: as a module for emergency 

stop, for end position monitoring with movable guards, for semiconductor outputs (e.g., 
light barriers) and for magnetic safety sensors in safety circuits up to category 4 acc. to 
EN ISO 13849-1, up to SIL 3 acc. to EN 62061 and up to PL e acc. to EN ISO 13849-1. 
- Input with 1 or 2 channels.
- The SIL 3 / PL e safety function is only available with the two redundant inputs 
configuration.
- Output contacts: 3 NO safety contacts, 1 NC auxiliary contact.
-  Automatic  start,  manual  start  (for  CS  AR-05••••  articles)  or  monitored  start  (for 
CS AR-06•••• articles) possible.

 With reference to the "automatic" operating mode, consider RES 1.2.3 of the 

Machinery Directive 2006/42/EC: "For machinery functioning in automatic mode, the 
starting of the machinery, restarting after a stoppage, or a change in operating condi-
tions may be possible without intervention, provided this does not lead to a hazardous 
situation".
- Connection of input channels of opposite potentials.
- Can be connected to semiconductor outputs and to magnetic safety sensors. 
- Short circuit detection function of the control elements by means of safety system 
with self-monitoring and redundancy.
- LED indicators for switching state of the channels 1, 2 and for the power supply 
voltage.
- Without muting input, no bridging of the safety function.
- In the event of a failure, the device switches to a safe state and deactivates the 
safety output. 
- Screw terminals or plug-in terminals with screw connections or spring terminals (de-
pending on the model).
- Snap-mounting on DIN rails.

3.3 Intended use of the device

- The device described in these operating instructions is designed to be applied on 
industrial machines.
- The direct sale of this device to the public is prohibited. Installation and use must be 
carried out by qualified personnel only.
- The use of the device for purposes other than those specified in these operating 
instructions is prohibited.
- Any use other than as expressly specified in these operating instructions shall be 
considered unintended by the manufacturer. 
- Also considered unintended use:
a) using the device after having made structural, technical, or electrical modifications 
to it;
b) using the product in a field of application other than as described in paragraph 
TECHNICAL DATA.

 4 OPERATION

4.1 Operating diagram

Automatic 
start  

(CS AR-05•••• 
only):

A1/A2

S11/S12 (+/S12)

S21/S22 (+/S52)

13/14, 23/24, 33/34

41/42

t

C

t

A

t

R1

t

R1

t

C

t

A

t

R

t

A

Monitored 
start  

(CS AR-06•••• 
only):

S12/S34 (START)

t

A

t

R1

t

R1

t

A

t

R

t

MIN

t

A

A1/A2

S11/S12 (+/S12)

S21/S22 (+/S52)

13/14, 23/24, 33/34

41/42

Manual start  

(CS AR-05•••• 
only):

S12/S34 (START)

t

A

t

R1

t

R1

t

A

t

R

t

MIN

A1/A2

S11/S12 (+/S12)

S21/S22 (+/S52)

13/14, 23/24, 33/34

41/42

Legend:

t

MIN

:

 Min. duration of start impulse

t

C

:

 Simultaneity time

t

A

:

 Response time

t

R1

:

 Release time

t

R

:

 Release time in absence of power 

supply

Notes: The configurations with one channel are obtained taking into consideration the 
S11/S12 (+/S12) input only. In this case it is necessary to consider time t

R1

 referred to 

input S11/S12 (+/S12), time t

R

 referred to the supply, time t

A

 referred to input S11/S12 

(+/S12) and to the start, and time t

MIN

 referred to the start.

4.2 Wiring diagrams

Emergency stop circuits

Input configuration with manual start 

(CS AR-05••••) - 1 channel

Input configuration with manual start

(CS AR-05••••) - 2 channels

S12

S52

S21

S22

A1

S34

A2

S11

CS AR-05

L / +

N / -

S12

S52

S21

S22

A1

S34

A2

S11

CS AR-05

L / +

N / -

Semiconductor outputs

Input configuration with manual start 

(CS AR-05••••) - 1 channel

Input configuration with manual start 

(CS AR-05••••) - 2 channels

S12

S52

S21

S22

24 VDC

+

-

A1

S34

A2

OSSD

S11

CS AR-05

S12

S52

S21

S22

A1

S34

A2

OSSD1

S11

CS AR-05

OSSD2

+

-

24 VDC

S12

S34

S34

S12

Automatic start (only for CS AR-05•••• articles)

With regard to the indicated diagrams, short-circuit the start 
button between the S12 and S34 terminals in order to acti-
vate the automatic start module.

Monitored start (only for CS AR-06•••• articles)

Use the safety module with the circuit diagrams for manual 
start.

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