Limit Switch Setting; Star/Delta Voltage Connection - Nice SD Serie Instrucciones Y Advertencias Para La Instalación Y El Uso

LIMIT SWITCH SETTING

The door must be balanced in all positions when assembling and
balancing with the weights according to the procedures prescribed
by the standards. Correct balancing is ascertained by manually
opening and closing the door with identical activation force in both
directions.
1. Mechanical limit switches
The upper and lower deactivation positions of the door are defined
by setting the limit switch.
The gearmotor must be electrically connected for making this setting.
To access the limit switch (fig. 8: limit switch plate with 8 switches)
unscrew the limit switch guard. It is possible to move the door in
dead man mode using the built­in "OPEN", "CLOSE" and STOP
buttons if the external control devices have not yet been connected
with the control station included in the supply.
Switch off the power and reverse the two L1 and L2 phases of the
gearmotor if the door does not open when pressing the "OPEN"
button.
The door must open even if the gearmotor has been installed upside
down when the "OPEN" button is pressed. Otherwise, switch off the
power and reverse the two L1 and L2 phases.
It is also necessary to properly correct the two emergency stop limit
switches so that they trip after the limit switch.
Switching off with door in low position
The limit switch for switching off with door in low position is to be set
as follows (fig. 8):
Move the door to the desired CLOSE position.
Set the contactor cam 3 E(white) to activate the limit switch.
Tighten the fixing screw A.
For accurate adjustment, turn the screw B.
Move the door into the desired OPEN position
Set the contactor cam 1 E(green) in order to activate the limit
switch.
Tighten the fixing screw A.
For accurate adjustment, turn the screw B.
The safety limit switches 2 SE and 4 SE (red) must be set in order
to be released right after the overtaking of the control limit switch.
The safety limit switches 2 SE and 4 SE (red) are factory­set in
order to follow the limit switch at a short distance.
Check that the fixing screws are in the correct position after the
operation test.
The additional limit switches 8 P2 and 7 P2 are closing contacts
with zero potential, while the additional limit switches 6 P1 and 5
P1 are switching contacts with zero potential.
In automatic mode limit switch 6 is used as a preliminary limit
switch. Therefore it is to be set so that it releases when the door
reaches a distance of 5 cm from the ground.
In dead man mode it is not necessary to set it and it is used as a
contact with zero potential.
2. Electronic limit switches (transducer absolute value),
type A and type B (fig. 10 and 11)
The EES electronic limit switch is a positioning switch with absolute
value for rolling shutters, doors and main doors. The assessment, or
setting, of the final positions is carried out with gearmotors for doors
tuned to the EES.
During assembly simply insert the six­pole plug. Particular mechanical
settings and positionings are not needed.
The terminals for the safety chain (safety switch) are respectively
located on the EES side (type A) and on the plate beneath the EES
(B type). (Fig. 9 and 10)
See the EES wiring diagram in the gearmotor instruction manual for
the UST1­K and UST1­KL doors.

STAR/DELTA VOLTAGE CONNECTION

Warning! Danger of death due to electric shock.
Before starting the assembly operations, exclude the voltage from
the conductors and check that they are really equal to zero.
The commutability of the motor voltage makes it possible to use the
gearmotor on both a 3 x 400 V and 3 x 230 V power grid.
The motor is wired in the factory with star connection for a 3 x 400
V power grid.
For connection to a 230 V power grid, switch the motor onto a delta
connection.
To commute the voltage onto the motor, wire the ends of the
windings as illustrated in fig. 13-16.
When fixing the motor cables, pay attention that the cables are long
enough to consent solid fixing, in order to create a connection able
to remain secure over time.
Pull the conductors to check if the connection is secure.
When switching over the motor for connection to a 3 x 230 V
power grid, it is necessary to also adjust the gearmotor (UST1 /
UST1­K / UST1­KL). Please refer to the UST1 / UST1­K / UST1­KL
instructions.
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