FAAC 746 C - Configuring Anti-Crushing System

746 C - 844 C 35 532150 - Rev.A
Translation of the original instructions
ENGLISH
6.6 CONFIGURING THE ANTICRUSHING
SYSTEM
Anti-crushing protection is obtained by limiting the
static/dynamic force exerted by the leaf in the event
of impact with an obstacle. When an obstacle is
detected, by the encoder or sensitive edges, the board
also issues a reverse command.
The functions used for adjusting the anti-crushing
system are listed below. Some allow the static/dyna-
mic force of the leaf on the obstacle to be limited;
others configure the reverse on obstacle. Adjust
the functions together, taking into consideration the
configuration of the automation and the conditions of
use. For example, if there is friction and the sensitivity
of the anti-crushing system is too high, it can cause
frequent unwanted reversals.
■ In BASIC Programming
-
FO Maximum motor force Set a low value if you want
to limit the static force in the event of impact.
-
So Opening speed, Sc Closing speed Set a low value
if you want to limit the dynamic force of the leaf on
the obstacle in the event of impact.
-
ro Deceleration during opening, rc Deceleration during
closing Specifies the extent of the leaf slowdown near
the open / closed positions.
-
dS Deceleration speed The slowdown allows you
to limit the inertial forces and reduce the vibration of
the gate when it is stopping. Set a low value if you
want to limit the dynamic force of the leaf during
slowdown.
■ In ADVANCED programming
-
Sr Slow movement when automation restored When
power comes back on after a power failure, if the
closing limit switch is not engaged, the movement
following a command takes place at a slow speed. The
programmed speed is restored only after the gate
engages the closing limit switch.
-
EC Anti-crushing sensitivity Specifies the speed
at which the anti-crushing system triggers after an
obstacle has been detected by the encoder.
-
IPReverse on obstacle Specifies whether the reverse
movement when an obstacle is detected should be
complete or partial.
The consecutive obstacles count is only enabled in the
case of total reversal (
IP=no).