FAAC 739, Installation Manual

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11
ENGLISH
6.2. Positioning the limit switches
For correct positioning of the limit switch magnets, the control unit
must be installed and correctly connected to all control and safety
accessories.
The operator is fitted with a magnetic limit switch which commands the
gate to stop at the moment when the magnet, fixed in the upper part of
the rack, activates the sensor. The magnets supplied with the operator are
suitably polarised and activate only one sensor contact, the closure contact
or the opening contact.
Important: For correct functioning of the operator, the magnet with the
circle must be positioned to the right of the motor and, vice versa,
the magnet with the square must be positioned to the left of the
motor (SEE FIGURE 19)
Assemble the two magnets as indicated in figure 19.
Prepare the operator for manual operation, as indicated in paragraph
8, then power up the system.
Manually move the gate into the open position, leaving 40 mm from the
travel limit mechanical stop
Slide the magnet closest to the operator along the rack, in the direc-
tion of the motor. As soon as the LED for the limit switch on the board
switches off, move the magnet forward by another 10 mm and fix it with
the appropriate screws.
Proceed in a similar way for the other magnet.
Move the gate approximately half way through its run and
re-lock the system (see paragraph 9).
Before sending an impulse, ensure that the gate cannot move ma-
nually.
Perform a complete gate cycle to check correct operation of the limit
switches.
To avoid damage to the operator and/or interruptions in the operation
of the automated system, approximately 40 mm must remain from
the travel limit mechanical stops.
Check that at the end of the operation, both at opening and closure,
the LED of the respective limit switch remains activated (LED off)
Make the appropriate changes to the position of the limit switch ma-
gnets.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Fig. 18 Fig. 18
Fig. 19 Fig. 19
7. TESTING THE AUTOMATED SYSTEM
After installing the operator, carefully check operating efficiency of all
accessories and safety devices connected to it.
Return the board support to its original position. Fit the cover (Fig. 20 ref.
1), tighten the two side screws provided (Fig. 20 ref 2) and snap-fit the side
panels (Fig. 20 ref.3).
Apply the danger sticker on the top of the cover (Fig. 21).
Hand the “User’s Guide” to the Customer and explain correct operation
and use of the gearmotor, indicating the potentially dangerous areas of
the automated system.
8. MANUAL OPERATION
Cut power to the system to prevent an involuntary pulse from activating
the gate during the release manoeuvre.
To release the operator proceed as follows:
Insert the key provided and turn it clockwise as shown in Fig. 22 ref. 1
and 2.
Turn the release system clockwise, until the mechanical stop is reached,
Fig. 22 ref. 3.
Open and close the gate manually.
9. RESTORING NORMAL OPERATION
Cut power to the system to prevent an involuntary pulse from activating
the gate during the manoeuvre for restoring normal operation.
To restore normal operation proceed as follows:
Turn the release system clockwise, until its stop is reached, Fig. 23 ref. 1.
Turn the key anti-clockwise and remove it from the lock, Fig. 23 ref. 2
and 3.
Move the gate until the release system meshes (corresponds to gate
locking).
Power up the system.
1.
2.
3.
1.
2.
3.
4.
Fig. 20 Fig. 20 Fig. 21 Fig. 21
Fig. 22 Fig. 22
Fig. 23 Fig. 23