Mechanical Limit Switch Setting - Nice UST2 Instructions Et Indications D'installation Et D'utilisation

MECHANICAL LIMIT SWITCH SETTING

Mechanical limit switch setting (fig. 8-9)
Attention! The limit switches must be
set in deadman mode!
The stop positions with
are defined with the limit switch setting.
The gearmotor must be electrically connected for making this setting.
The limit switch board is accessible when the limit switch guard is
unscrewed.
If external control devices are not yet connected, it is possible to
control the door with the control unit supplied using the integrated
OPEN, CLOSE and STOP buttons in deadman mode.
If the OPEN button is enabled, the door must open; otherwise the L1
and L2 phases on the control unit must be reversed in zero voltage
conditions.
If the gearmotor was installed turned 180° (upside-down assembly),
the door must also open with the integrated OPEN button; otherwise
the L1 and L2 phases must be reversed in zero voltage conditions.
It is also necessary to correct the two emergency stop limit switches
so they trip after the limit switch.
Mechanical limit switches
8
9
6 – English
door in the up/down position
8 white Additional limit switch 2 CLOSING
7 green Additional limit switch 2 OPENING
6 white Additional limit switch 1 CLOSING
5 green Additional limit switch 1 OPENING
4 red Safety limit switch CLOSING
3 white Limit switch CLOSING
2 red Safety limit switch CLOSING
1 green Limit switch OPENING
Mechanical limit switch setting
Switching off with door in low position
To set switching off with the door in the low position, the following
operations must be performed:
Move the door to the desired CLOSE position.
Set the contact cam 3 Ei (white) in order for the limit switch to be
enabled.
Tighten the fixing screw A.
To get accurate adjustment, use screw B.
Move the door into the desired OPENING position.
Set contact cam 1 Eh (green) so the limit switch is enabled.
Tighten fixing screw A.
To get accurate adjustment, use screw B.
Safety limit switches 2 SEi and 4 SEh (red) must be set so they
intervene right after the control limit switch is passed.
Safety limit switches 2 SEi and 4 SEh (red) are factory-set so
they 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 P2i and 7 P2h are closing
contacts with zero potential, and the additional limit switches 6 P1i
and 5 P1h are switching contacts with zero potential.
Limit switch 6 is used as a preliminary limit switch in automatic
mode. Therefore, it is to be set so that it trips when the door
reaches a distance of 5 cm from the ground.
In deadman mode it is not necessary to set it and it is used as a
contact with zero potential!
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