Positioning The Stroke-Limit Magnets - APRITECH Antes 230 Mode D'emploi

3. Manually move the leaf to its open position.
4. Lay the first element of the rack on the pinion, on the first spacer (fig.
10).
5. Secure the rack element to the leaf with a clamp (fig. 10).
6. Manually slide the leaf toward the closing point until you reach the rack's
third spacer, and fix it with a weld spot.
7. Definitively weld the three spacers on the gate. Procedure for correctly
fixing the other rack elements required to reach the closing position:
8. Bring near another rack element to the last fixed element, using a piece
of rack to synchronise the teeth with the two elements (fig. 11).
9. Manually slide the leaf toward the closing point until you reach the pinion
with the third spacer of the element to be secured (fig. 11).
Make sure that all the rack elements work on the centre of the pinion's
teeth. Otherwise, adapt the gearmotor's position.
10. Weld the element's three spacers (fig. 10).
a) Do not, on any account, weld the rack elements either to the
spacers or to each other.
b) Do not, on any account, use grease or other lubricants between
rack and pinion.
11. To obtain correct play between rack and pinion, lower the gearmotor
by 1.5 mm, using the nuts supporting the foundation plate. When you
have finished adjusting, correctly tighten the operator securing nuts.
If the gate was recently built, check this play (fig.12) a few months after
installation.
12. Manually check if the gate is free to open completely and if leaf move-
ment is good and friction- free.
Fig. 9

3.4. POSITIONING THE STROKE-LIMIT MAGNETS

The operator has a magnetic limit-switch, which commands gate motion
to stop when the magnet, which is secured to the upper part of the rack,
activates the sensor. The magnets supplied with the operator are specifically
polarised and activate only one of the sensor's contacts: the closing or
opening contact. The magnet activating the open gate contact bears an
open padlock symbol, and, vice versa, the magnet activating the closed
gate contact bears the closed padlock symbol (see Fig. 13).
Procedure for a correct positioning of the two stroke-limit magnets:
1. Assemble the two magnets as shown in figure 13.
Fig. 10
2. Set the operator to manual mode operation - see chapter 6 - and
power up the system.
3. Manually take the gate to opening position, leaving about 40 mm from
the opening mechanical stop.
4. Slide on the rack the magnet with the open padlock in the opening
direction, until it is detected (see Figure 14). Then slide the magnet 10
mm forward and secure it temporarily with appropriate screws.
5. Repeat the operations from point 3 for the closing magnet.
6. Re-lock the system (see paragraph 6).
before sending a pulse, make sure that the gate cannot be moved
manually.
7. Command a complete gate cycle to check if the limit-switches are
operating correctly.
Fig. 11
9
Fig. 12
Fig. 13