pizzato FR 93 Serie Manual Del Usuario página 4

1 INFORMATION ON THIS DOCUMENT
1.1 Function
The present instruction manual provides information on installation, connection and
safe use for the following articles: FR ••93, FX ••93, FK ••93, FR ••92, FX ••92, FK ••92,
FW ••92.
1.2 Target audience
The operations described in this instruction manual must be carried out by qualified
personnel only, who are fully capable of understanding them, and with the technical
qualifications required for operating the machines and plants in which the safety de-
vices 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 devices described in this manual are defined as coded, type 2 mechanical
interlocking devices acc. to EN ISO 14119.
The safety switches with separate actuator to which these usage instructions refer are
safety devices designed and implemented for the control of gates, guards, enclosures,
and doors in general, which are installed to protect dangerous parts of machines
without inertia.
The actuator is installed on the moving part of the guard in such a way that it is
extracted from the switch each time the guard is opened.
3.2 Intended use of the device
- The device described in this manual is designed to be applied on industrial machines
for state monitoring of movable guards.
- 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 this manual is
prohibited.
- Any use other than as expressly specified in this manual 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 INSTALLATION INSTRUCTIONS
Attention: Installing a protective device is not sufficient to ensure operator safety
or compliance with machine safety standards or directives. Before installing a protec-
tive device, perform a specific risk analysis in accordance with the key health and
safety requirements in the Machinery Directive. The manufacturer guarantees only
the safe functioning of the product to which this instruction manual refers, and not the
functional safety of the entire machine or entire plant.
4.1 Selection of the actuator type
The switch is activated by a low level coded actuator. Please make sure to use only
the actuator provided with the switch or use one of the following actuators: VF KEYD,
VF KEYD1, VF KEYD2, VF KEYD3, VF KEYD5, VF KEYD6, VF KEYD7, VF KEYD8,
VF KEYD10, VF KEYD11.
The use of any other actuator does not guarantee the safety of the system.
Attention: Any other actuators present in the same place where the device has
been installed must be segregated and kept under strict control in order to avoid any
bypassing of the safety device. If new actuators are fitted, the original actuators must
be disposed of or rendered inoperable.
4.2 Device head orientation
It is possible to adjust the position of the device head in order to turn it to the position
best suited to the application.
Completely removing the head fixing screws allows orientation in 90° rotations.
Attention: Once adjustment is complete, re-tighten all head screws with a torque
between 0.5 and 0.7 Nm.
For FR ••92, FX ••92, FK ••92, FW ••92 only: once the device is in its definitive
configuration, you must replace two of the head fixing screws on the body, with two
one-way tamper-proof screws, provided with the device. The two tamper-proof screws
must be screwed onto diametrically opposed holes on the head. This must be carried
out before commissioning the machine.
The switch head has two actuator inputs: one perpendicular, and the other parallel
to the device body. Once the actuator input direction has been selected, the unused
input hole must be sealed, using the appropriate cap supplied. It is possible to use one
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single hole at a time, with one single actuator.
4.3 Fixing of the device
Attention: Always affix the device with at least 2 M4 (for FR •••, FX •••, FK •••
series) or M5 screws (for FW ••• series). Always use screws with a resistance class
of 4.6 or higher, and flat seating heads. Install the screws with medium resistance
thread lock, and a number of threads engaged equal to or greater than the screw
diameter. The device must never be fixed with less than 2 screws. For FR •••, FK •••,
FW ••• series, we recommend using under head washers for the fixing screws on the
device body.
The tightening torque of the M4 and M5 screws must be between 2 and 2.5 Nm.
It is advisable to install the device in the top part of the door, in order to prevent
any dirt or work residues from getting inside the hole where the actuator is to be
introduced. In order to avoid device bypassing it is advisable to fix the device body to
the machine frame so that it cannot be removed.
4.4 Fixing the actuator to the guard
Attention: As required by EN ISO 14119, the actuator must be fixed immovably
to the door frame.
Install the actuator so that its edge does not protrude dangerously into the
operator working area when the door is open.
Always affix the actuator with 2 M4 (for items VF KEYD, VF KEYD1, VF KEYD2,
VF KEYD3) or M5 screws (for items VF KEYD5, VF KEYD6, VF KEYD7, VF KEYD8,
VF KEYD10, VF KEYD11) of resistance class 4.6 or higher, and with flat seating
heads. Install the screws with medium resistance thread lock, and a number of threads
engaged equal to or greater than the screw diameter. The actuator must never be
fixed with fewer than 2 screws. The tightening torque of the M4 and M5 screws must
be between 1.2 and 1.6 Nm.
Do not deform or modify the actuator during installation for any reason.
For correct fixing, other means can also be used, such as rivets, non-removable
security screws (one-way), or other equivalent fixing system, provided that it can
ensure adequate fixing.
4.5 Switch-actuator alignment
Before commissioning the machine, and periodically, check that the alignment be-
tween switch and its actuator is correct. The actuator must not impact the inlet area on
the switch, and must not be used as a centring device for the mobile guard.
Do not use a hammer for the adjustments, unscrew the screws and adjust the device
manually, then tighten it in position.
4.6 Electrical connections
Attention: the safety circuit must be connected to the safety contacts (11-12, 21-
22, 31-32). The auxiliary contacts (13-14, 23-24, 33-34) must be used for signalling
only.
To gain access to the contact block terminals, open the cover on the front switch part,
removing the fixing screws. Once cabling work is complete, always re-close the cover.
5 OPERATION
Once the device is installed to the machine and the actuator to the opening guard, and
electrical connections have been made (as described in paragraph "INSTALLATION
INSTRUCTIONS"), extracting the switch actuator must initiate a stop of the machine
and related dangerous moving elements.
Subsequent machine restart shall be possible only once the actuator has been
reinserted to the device.
5.1 Access monitoring
This switch alone is not sufficient to protect any operators or maintenance engineers
in the event that they are able to physically enter the danger area with their whole
body, since any unintentional closing of a guard behind them could allow the machine
to be restarted. If this device is solely responsible for authorising machine re-start,
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