pizzato FD 93 Serie Manuel D'instructions page 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: FD ••93, FP ••93, FL ••93, FC ••93, FD ••R2,
FP ••R2, FD ••99, FP ••99
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.
In FD ••99 and FP ••99 devices, the actuator can be extracted from the switch only
after rotating the key in the lock (on the switch body) 180°.
In FD ••R2 and FP ••R2 devices, the actuator can be extracted from the switch only
after rotating the knob on the switch body clockwise up to the stop.
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 KEYF,
VF KEYF1, VF KEYF2, VF KEYF3, VF KEYF7, VF KEYF8.
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 low-level coding
actuators must be disposed of or rendered inoperable.
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4.2 Head and release device (where present) orientation
Attention: tighten the head and auxiliary release device screws to a torque from
0.8 to 1.2 Nm.
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
single hole at a time, with one single actuator.
4.3 Fixing of the device
Attention: Always affix the device with a number of M5 screws equal to the
number of holes on the housing. Always use screws with a resistance class of 8.8 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 fewer screws than holes available on the housing.
The tightening torque of the M5 screws must be between 2 and 3 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.
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 M5 screws with resistance class 8.8 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 actuator must
never be fixed with fewer than 2 screws. Tighten the M5 screws to a torque from 1.2
to 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
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; making sure that the seal
gasket is correctly inserted in its seat.
5 OPERATION
Once the device is installed on the machine and opening guard, and electrically
connected (as described in paragraph "INSTALLATION INSTRUCTIONS"), extracting
or releasing 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 and blocked in the device (where the release mechanism is present).
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If necessary, it is possible to adjust the
position of the head and the release
device (if present), in 90° rotations, at
the machine, in order to turn the device
to the position best suited to the
application.
Remove the 2 screws on the top of the
head, and disconnect the head from the
switch body.
Remove the 4 fixing screws from the
auxiliary release device; rotate it to the
desired position, and retighten the 4
screws.
Position the switch head, with the
desired orientation, above the auxiliary
release design device, and replace the
2 fixing screws on the holes provided.
Before commissioning the machine,
and periodically, check that the align-
ment between switch and its actuator
is correct. The actuator must not im-
pact 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 adjust-
ments, unscrew the screws and adjust
the device manually, then tighten it in
position.