Wire Diagram - Beninca BULL 20HE Manual Del Usuario

6. How to install the magnets (BULL 20HE.S - 20HEA.S) fig.11
The magnets are housed in special supports (fig.11-"A"). These magnets are to be fitted to the limit switch
brackets or the rack and cause the triggering of sensors when they approach them.
Fitting onto the limit switch brackets
The bases are complete with hooking tongue allowing the fitting of the magnets to the limit switch bracket
supplied with the operator, as shown in Fig.11-B.
This type of fitting allows to rapidly adjust the position of magnets. After calculating the correct distance, fix
the support in the correct position by means of a screw, so as to avert the moving of the bracket.
Fitting onto the rack
As an alternative, the supports can be fitted directly to the rack, by using the slots shown in Fig. 11-C. This
fitting mode does not allow for subsequent regulations. It is therefore advised to make some trials with tem-
porarily fitted supports before carrying out the final fitting.
IMPORTANT: The correct distance of the magnet with respect to the sensor depends on the installation
characteristics. This space cannot be preset and must be adjusted on a trial basis.
The distances regarding the triggering of the sensor (value X) with respect to distance K of 3 and 35 mm,
which are shown in Fig. 11 are only indicative.
In any case, distance K must not exceed 35 mm as a higher distance will not allow the triggering of the mag-
netic sensor.
7. Manual operation (see Fig.12)
In the event of power failure or malfunction, to manually operate the gate proceed as follows:
- After inserting the customized key C, turn it anti-clockwise and pull the lever L.
- The geared motor is unlocked and the gate can be moved by hand.
- To return to the normal operating mode, close the lever L again and manually activate the gate until it is
geared.

8. Wire diagram

For the wire connections of the system and to adjust the operating modes, please refer to the Instruction
Manual of the control unit.
In particular, the anti-crash device (encoder) should be adjusted according to regulations in force.
Please remember that the device should be earthed by means of the appropriate terminal.
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