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check that there is no interference between the photo-
10.
cells and other equipment by blocking the line of sight
between the pair of photocells with a cylinder (diameter
5 cm, length 30 cm): move the cylinder close to the TX
photocell first, then next to the RX photocell and then at
the mid-point between them. Ensure that in all cases the
device engages, changing from the enabled status to the
alarm status and vice-versa; lastly, ensure that it triggers
the expected action in the control unit (for example, rever-
sal of movement in the closing manoeuvre).
11.
Verification of the safeguard against the risk of lifting:
on automations with vertical movement, it is necessary to
check that there is no lifting danger. This test can be car-
ried out as follows: hang a 20 kg load (e.g. a sand bag)
halfway along the length of the boom then command an
opening manoeuvre and check that during the manoeuvre
the boom does not exceed a height of 50 cm above its
closed position. If the boom exceeds this height, the mo-
tor force must be reduced (refer to the "PROGRAMMING"
paragraph).
If potentially dangerous situations due to the boom's
12.
movement have been prevented by limiting the impact
force, the latter must be measured according to the EN
12445 standard and, if the "motor force" control is used
to aid the system in reducing the impact force, it is neces-
sary to test various adjustments to find the one that gives
the best results.
TABLE ON INTERVENTIONS
Description of intervention performed
Date
(Description of checks, adjustments, repairs, modifications, etc.)
All the phases envisaged in the maintenance schedule have been carried
out
___YES
___NO
38 – ENGLISH
13.
Checking the efficiency of the unlocking system: place
the boom in the "closed" position and manually unlock the
gearmotor (refer to the "Manually unlocking and locking
the gearmotor" paragraph), making sure that this occurs
without difficulty. Check that the manual force for moving
the boom to the "open" position does not exceed 200 N
(approximately 20 kg); the force is measured perpendicu-
lar to the boom and at 1 m from the axis of rotation. Lastly,
check that the manual release key is available near the
automation.
Check the power supply disconnection system: oper-
14.
ate the power disconnection device and disconnect any
available back-up batteries; check that all the LEDs on the
control unit are OFF and that the boom remains stationary
when a command is sent. Check the efficiency of the lock-
ing system to prevent any unintentional or unauthorised
connection.
Signature of
Technician
Table 16
Signature of Owner
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