pizzato FD M2-EX4 Serie Mode D'emploi page 5

4.6 Installation requirements for articles FA ••••-•••-EX5
- Maintenance in the ambient temperature range (-20°C to +60°C) and compliance
with the instructions provided with the device are requirements for proper operation.
- For devices with integrated cable, the free end of the cable must be properly con-
nected inside a protected housing. The cable must be adequately protected from cuts,
impacts, abrasion, ultraviolet rays, chemical agents, etc.
- The general installation and assembly requirements described in EN 60079-14 must
be complied with.
- To connect the external ground cable, use an eyelet terminal.
External earth connection
4.7 Testing
No test period is required when installation is performed by qualified personnel.
5 INSTRUCTIONS FOR PROPER USE
5.1 Installation
- Do not stress the device with bending or torsion.
- Do not modify the device for any reason.
- Do not exceed the tightening torques specified in the present operating instructions.
- If the device performs an operator protection function in accordance with EN ISO
14119, improper installation or tampering can cause serious injury to people and even
death, as well as property damage and economic losses.
- These devices must not be bypassed, removed, turned 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 installation, ensure that the connection cables are not powered.
- 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 switch fitting surface must always be smooth and clean.
- 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 (see paragraph
SUPPORT).
Always attach the following operating 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.
5.2 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 collisions, impacts or strong vibrations
to the device.
- In environments where ice can form on the device.
- In environments containing strongly aggressive chemicals, where the products used
coming into contact with the device may impair its physical or functional integrity.
- In environments where dust and dirt can cover the device and by sedimenting stop
its correct working.
5.3 Mechanical stop
- The device actuator must always be equipped with an independent mechanical stop.
- Do not use the device as a mechanical stop of the actuator.
5.4 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.
Attention: In case of damages or wear it is necessary to change the whole de-
vice. Correct operation cannot be guaranteed if the device is deformed or damaged.
- The general maintenance and repair requirements are given in EN 60079-17 and EN
60079-19, respectively. These requirements must be complied with.
- 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) Switch on the device and verify that the machine behaves as expected.
2) Turn off the device and verify that the machine behaves as expected.
3) Clean the device and avoid the formation of dust layers on the device itself.
4) All external parts must be undamaged.
5) If the device is damaged, replace it completely.
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
manufacture the device must be replaced completely. The date of manufacture is
placed next to the product code (see paragraph MARKINGS).
5.5 Wiring
Attention: Check that the supply voltage is correct before powering the device.
- Keep the charge within the values specified in the electrical operation categories.
- Do not open the device if voltage is present.
- Always connect the protection fuse (or equivalent device) in series to the NC safety
electrical contacts.
- Adhere to the following minimum and maximum cross-sections of electrical conduc-
tors designed for screw terminals (except for articles FA ••••-•••-EX5).
Contact blocks
2, 3 20, 21, 22, 28, 29, 30, 33, 34
min.1 x 0.5 mm (1 x AWG 20) min. 1 x 0.34 mm
2
max. 2 x 1.5 mm 2 (2 x AWG 16) max. 2 x 1.5 mm
- The stripping length of the cable or insulated wire-end sleeve (x) must be equal to
the values indicated below (except for articles FA ••••-•••-EX5).
Contact blocks
2, 3 20, 21, 22, 28, 29, 30, 33, 34
6 mm
5.6 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:
1) Utilisation implies knowledge of and compliance with following standards: EN
60947-5-1, EN ISO 13849-1, EN 62061, EN 60204-1, EN ISO 14119, EN ISO 12100.
2) Use only devices marked with the
nect the safety circuit to the NC contacts (normally closed contacts: 11-12, 21-22 or
31-32) as required by EN ISO 14119 paragraph 5.4 for specific interlock applications
and EN ISO 13849-2 table D3 (well-tried components) and D8 (fault exclusions) for
safety applications in general.
3) Operate the device at least up to the positive opening travel indicated in the travel
diagrams in the general catalogue.
4) Operate the device with at least the positive opening force indicated in the general
catalogue.
5.7 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,
mechanical endurance, IP protection degree, etc.). These limitations are met by the
device only if considered individually and not as combined with each other.
- 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, contact our assistance service (see paragraph SUP-
PORT):
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.
b) cases not listed in these operating instructions.
6 SPECIAL CONDITIONS
The operation of the device is not subject to special conditions.
7 MARKINGS
The device is indelibly marked on the outside in a visible way. Marking includes:
- Producer trademark
- Product code
- Batch number and date of manufacture. Example: A22 FD1-411. The batch's first
letter refers to the month of manufacture (A = January, B = February, etc.). The second
and third letters refer to the year of manufacture (22 = 2022, 23 = 2023, etc.)
- symbol II 3D Ex tc IIIC T80°C Dc
•
II: equipment group
•
3D: protection category
•
Ex tc: type of protection
•
IIIC: classification of dusts
•
T80°C: maximum surface temperature of the device
•
Dc: EPL
- symbol II 3G Ex nC IIC T6 Gc
•
II: equipment group
•
3G: protection category
•
Ex nC: type of protection
•
I: classification of gases
•
T6: temperature class of the gases
•
Gc: EPL
- Ambient temperature
- Information regarding voltage and current
5/18 5/18
Contact blocks Contact blocks
5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 18, 37, 66, 67
(1 x AWG 22) min. 1 x 0.5 mm
2
2 (2 x AWG 16) max. 2 x 2.5 mm
Contact blocks Contact blocks
5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 18, 37, 66, 67
7 mm 8 mm
x x
symbol beside the product code. Always con-
(1 x AWG 20)
2
2 (2 x AWG 14)