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 FOG54A22-EU
4/18
1 INFORMATION ON THIS DOCUMENT
1.1 Function
These operating instructions provide information on installation, connection and safe
use for the following articles:
CS FS-3
•••••
1.2 Target audience
The operations described in these operating instructions must be carried out by qua-
lified personnel only, who are fully capable of understanding them, and with the tech-
nical 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 malfun-
ction, 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. The safety function provi-
des for the timing and check of a safe contact (17-18) as well as the functional check
of the module at each re-start, according to the methods described in this document.
There are also some unsafe signalling contacts and some LEDs for displaying the
state of the device.
3.2 Device functions
This device is suitable for the following applications: as a safety timer module in
safety circuits up to category 3 and PL d acc. to EN ISO 13849-1 and SIL CL 2 acc.
to EN 62061.
- LED indicators to signal the state of the device (Out, Fault) and the presence of a
power supply (Power).
- 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 Function diagrams
CS FS-3•••••
Delay off
Normal operation without faults:
A1/A2 - B1/B2
17/18
25/26
t
A
35/36
35/38
t
S
CS FS-3•••••
Delay off
Operation without power supply:
A1/A2 - B1/B2
17/18
25/26
t
A1
35/36
35/38
t
S
t
R
Legend:
t
A
:
adjustable release time:
0.3 … 3 s, 0.3 s steps
(articles CS FS-31••••)
1 … 10 s, 1 s steps
(articles CS FS-32••••)
3 … 30 s, 3 s steps
(articles CS FS-33••••)
30 … 300 s, 30 s steps
(articles CS FS-34••••)
t
A1
:
release time if duration of power supply is less than t
A
t
R
:
release time in absence of power supply
t
S
:
start-up time
Note: For articles
CS FS-30••••-TF
xx
, the release time t
A
is permanently set to xx
seconds (xx is included in the code structure).
4.2 Operating states
State
Description
Outputs
LED
POwER-
ON
Device state in the time
between applying the supply
voltage and conclusion of the
internal self-test.
K1
Off
K2
Off
K3
Off
Y14
Off
PWR OUT FAULT
ERROR
State of the device, if an
internal failure has been
detected in the device itself.
K1
Off
K2
Off
K3
Off
Y14
On
PWR OUT FAULT
DELAY
State of the device during the
timing function.
K1
On
K2
On
K3
On
Y14
Off
PWR OUT FAULT
RUN
State assumed by the device
after the DELAY state, if no
error has been detected.
K1
Off
K2
Off
K3
Off
Y14
Off
PWR OUT FAULT
Legend: = led on; = led off.
4.3 Description of operation
when the timer module is receiving a power supply, the Power LED lights up, and the
device enters the POwER-ON STATE, detects the time set in the selector (only for
versions with selectable time) and conducts an internal self-test.
If the test is not passed, the module enters the ERROR STATE.
In ERROR state, the timer module immediately places itself in safety mode by
deactivating all the relays and activating the Fault LED and the relative signalling
output Y14.
If the test is passed, the module enters into DELAY status by activating the relays
and the Out LED. Once the timing function has been performed, the module enters
the RUN state by deactivating the outputs. If the timing phase is not successful, or if a
safety relay (K1, K2) does not switch, the system immediately enters the ERROR state.
5 INTERNAL WIRING DIAGRAM
B1
B2
K1
K3
K2
17
25
35
36
38
26
18
A2
LED
OUT
P1
P2
A1
Y14
LED
FAULT
LED
PWR
Legend:
A1-A2:
24 Vdc power supply
B1-B2:
120 Vac power supply (only for articles
CS FS-3••120)
Y14:
auxiliary output, activated when the module enters the FAULT state
17-18:
NO safety contact
25-26:
NC auxiliary contact
35-36-38:
CO auxiliary contact
6 FAULTS
LED state
Possible fault
Recommended action
PWR
OUT
FAULT
- No power supply to the
module.
- wrong wiring.
- Power supply connections cut.
- External fuse broken.
- Internal module fault.
Check the wiring and
check the fuse.
If the fault persists,
replace the module.
