GAPOSA BHS Serie Instrucciones página 11

3.3 POWER CONNECTION FOR VERSION
If you do not use a standard Gaposa power cable the electrical motor power supply connection must be made with the F connector. Be careful
to connect the common and the two senses (down and up) in the shown positions. In case the motor turns in the wrong direction, invert the up/
down wires on the F connector or on the external control.
3.4 POWER CONNECTION FOR VERSIONS
In the version with direct connection the electronic board in the limit switch box must be powered on through the removable G connector.
The use of an external control unit is not necessary; you only need a three-pole selector up/down plus earth.
4. ELECTROMECHANICAL CONTROL UNIT
There are many control units suitable to control the BHS range. Their choice depends on the level of automation required.
For more details please refer to the selection table available in the GAPOSA catalogue and to the related installation manuals.
IMPORTANT: BHS three-phase motors are suitable for a 3x400V (star) connection. Three-phase 3x230V voltage available only on request.
5. LIMIT SWITCH TYPES AND SETTING
BHS can be supplied with different types of switches: mechanical, with absolute encoder and with direct connection.
5.1 SIX CAMS MECHANICAL LIMIT SWITCH SETTING (Fig. 11)
In the mechanical version the 6 cams send to a control unit the signals necessary to know what is the position of the sectional door and execute
the various assigned commands accordingly.
The cams function is highlighted by their color: 2 green cams for the principal ones (up and down), 2 red cams for security, 2 additional yellow
cams for the auxiliary controls.
The use of an external electromechanical control is essential. If the user uses a Gaposa control, he must use the standard signal and power ca-
bles. In this case the user has only to insert the connectors into the appropriate sockets on the limit switch board placed on the gearmotor and
on the control. The system, tested at Gaposa, will be ready for use without the need to operate any change. If you use a non Gaposa control you
have to connect the power and signal cables according to the diagram in fig. 6.
Check that the motor direction of rotation corresponds to the complementary limit switch, otherwise invert one of the 3 phases of the 3x400 V
supply.
For the limit switch adjustment use the Allen key 3 placed in his cavity on the limit switch and proceed as follows:
1. Close the door in down limit position, release the A screw of the Down cam, turn the cam till it reaches the microswitch pin, then tighten the
A screw.
2. Tune the setting by the B screw of the Down cam till the microswitch is activated.
3. Open the door till the microswitch is free and then close it again.
4. Check and eventually tune the down limit through the B screw of the Down cam.
5. With the door in its closing position, set the safety down limit switch by releasing the A screw of the safety Down cam and turning it till it rea-
ches the microswitch pin (but without activating it), then screw it again. The safety limit switch enables to stop the door, without any damage,
in the case that the supply phases are reversed. In case it is activated, the control unit stops electrically the motor and no operation will be
possible until the protection is removed.
6. After having activated the sectional door until the upper limit, adjust the Up cam and the safety Up cam in the same way you have done with
the Down and security Down cams.
5.2 MECHANICAL LIMIT SWITCH SETTING FOR
For the limit switch adjustment use the Allen key 3 placed in his cavity on the limit switch and proceed as follows:
1. Close the door in down limit position, release the A screw of the Down cam, turn the cam till it reaches the microswitch pin, then tighten the
A screw.
2. Tune the setting by the B screw of the Down cam till the microswitch is activated.
3. Open the door till the microswitch is free and then close it again.
4. Check and eventually tune the down limit through the B screw of the Down cam.
5. After having activated the sectional door until the upper limit, adjust the Up cam in the same way you have done with the Down cam.
NOTE: In case of automatic operation (AUT position on the integrated control unit), during the ascent, you can stop the movement by giving a
short pulse on the switch in DOWN direction.
5.3 ABSOLUTE ENCODER LIMIT SWITCH (FIG. 14)
In the version with absolute encoder such tool is integrated in the limit switch and it is the tool that sends the commands to the external control.
There are no cams but through a telegram of pulses the tool determines and communicates to the electronic controls what the position of the
sectional door is and consequently allows to perform the various assigned commands.
The use of an external electromechanical control is essential.
The data connection cable (with AMP connector) must be inserted in its place on the encoder (L) and at the other end, in the control unit. Follow
the control instructions and use the external electromechanical control panel in order to determine the up and down limit switch position and
of any other auxiliary control.
This limit switch has no microswitches blocking the sectional door in case the limits are overcome. The external control panel will manage the
security of the system.
E
(WITH ENCODER LIMIT SWITCH) - FIG. 9
H
(WITH 3 CAMS MECHANICAL LIMIT SWITCH) - FIG. 10
"I"
VERSION (Fig. 12) and "H" VERSION (Fig. 13)
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