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6 INSTRUCTIONS FOR PROPER USE
6.1 Installation
Attention: Installation must be carried out by qualified staff only. The OS1
and OS2 safety outputs of the device must be connected to the safety circuit of the
machine. The signalling outputs O3 and O4 are not safety outputs and may not be
used individually in a safety circuit to determine safe state of guard closed.
- Do not stress the device with bending and torsion.
- Do not modify the device for any reason.
- Do not exceed the tightening torques specified in the present manual.
- 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, 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 safe-
ty 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 fitting surface of the device must always be smooth and clean.
- The documents necessary for a correct installation and maintenance are always
available in the following languages: English, French, German and Italian.
- 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 manufac-
turer (see paragraph SUPPORT).
- Before commissioning the machine, and periodically, check for correct switching of
the outputs and correct operation of the system comprising the device and associated
safety circuit.
- In proximity of the device do not carry out arc welding, plasma welding, or any other
process that may generate electromagnetic fields of intensity higher than the limits
prescribed by the standards, even when the device is off. Where welding operations
are to be carried out in the proximity of the previously installed device, it must first be
moved away from the work area.
- When the device is installed on a mobile frame and the actuator is installed on a
mobile door, ensure that the device cannot be damaged by simultaneous opening of
the frame and the door.
- After installation, check for correct operation of the auxiliary release (if present) and
the escape release button (if present).
- 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.
6.2 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.
- 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.
6.3 Mechanical stop
Attention: The door must always be provided with an independent end-limit me-
chanical stop at limit of travel.
Do not use the device as mechanical stop for the door.
6.4 Maintenance and functional tests
Attention: Do not disassemble or try to repair the device. In case of any malfunc-
tion or failure, replace the entire device.
Attention: In case of damages or wear it is necessary to change the whole de-
vice including its actuator. Correct operation cannot be guaranteed when the device
is deformed or damaged.
- 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 complex-
ity 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) Lock the protection and start the machine. It must be impossible to open the guard.
2) Try to start the machine while the guard is open. The machine must not start.
3) Check correct actuator to device alignment. If the actuator inlet is worn, replace the
entire device and actuator assembly.
4) When the escape release button (if present) is pressed, the protection must open
freely and the machine must not start. Each time the escape release button is ac-
tivated, the machine must stop and the door must open immediately. The escape
release button must slide freely and be tightly screwed in. The signs placed inside
the machine, indicating the function of the escape release button (if present), must be
intact, clean and clearly readable.
5) When the auxiliary release (if present) is activated, the protection must open freely
and the machine must not start (for devices with mode 3 check that the machine
shows the expected behaviour)
6) If the guard is closed but not locked, it must not be possible for the machine to start
(not applicable in mode 2, for devices with mode 3 check that the machine shows the
expected behaviour).
7) All external parts must be undamaged.
8) If the device is damaged, replace it completely.
9) The actuator must be securely locked to the door; make sure that none of the ma-
chine operator’s tools can be used to disconnect the actuator from the door.
10) The device has been created for applications in dangerous environments, there-
fore 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).
6.5 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.
- Only connect and disconnect the device when the power is off.
- 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 device and the other components connected to it from a single
SELV source and in accordance with the applicable standards.
- Always connect the protection fuse (or equivalent device) in series with the power
supply for each device.
- During and after the installation do not pull the electrical cables connected to the
device.
- At the end of the wiring, check that no contaminating element has been introduced
inside the device.
- Before closing the device cover verify the correct positioning of the gaskets.
- Verify that the electrical cables, wire-end sleeves, cable numbering systems and any
other parts do not obstruct the cover from closing correctly or if pressed between them
do not damage or compress internal parts
- During and after the installation do not pull the electrical cables connected to the de-
vice. If traction is applied to the cables (not supported by an appropriate cable gland)
internal parts of the device may be damaged.
- The device contains two internal PUSH-IN spring type terminals for connecting the
following wire types.
Cross-section of rigid wires or with wire-end sleeve:
min. 0.34 mm
2
(AWG 22) max. 1.5 mm
2
(AWG 16).
Wire cross-section with pre-insulated wire-end sleeve:
min. 0.34 mm
2
(AWG 22) max. 0.75 mm
2
(AWG 18).
Stripping length of electrical conductors: min. 8 mm - max. 12 mm.
6.6 Additional prescriptions 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.
- The utilization implies knowledge of and compliance with following stand-
ards: EN 60947-5-3, EN ISO 13849-1, EN 62061, EN 60204-1, EN ISO 14119,
EN ISO 12100.
6.7 Limits of use
- By connecting the two solenoid activation inputs IE1, IE2 on two distinct channels to
two OSSD safety outputs of a safety PLC or safety module, the device can be used as
a component with interlocking functions in a system with safety category 4 /PL accord-
ing to EN ISO 13849-1 and integrity level SIL CL 3 according to EN 62061.
- By connecting both solenoid activation inputs IE1 and IE2 to the same channel, or
by connecting the I4 input only after having short-circuited the two solenoid activation
inputs IE1 and IE2, the device can be used as a component with interlocking functions
in a system with safety category 2/PL d according to EN ISO 13849-1 and integrity
level SIL CL 2 according to EN 62061. Any fault on the single I4 activation line of the
solenoid can cause the actuator to be released, and the safety outputs switched off.
- 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) Fitting operations not carried out by qualified and authorized personnel;
4) Omission of functional tests.
- For the cases listed below, before proceeding with the installation contact our techni-
cal assistance 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 opera-
tion of the device;
b) Applications not listed in this instruction manual.
- Permanent application of maximum holding force Fzh is not permitted.
7 MARKINGS
The outside of the device is provided with external marking positioned in a visible
place. Marking includes:
- Producer trademark
- Product code
- Batch number and date of manufacture. Example: A18 NG1-123456. 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 (18 = 2018, 19 = 2019, etc…).
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