Computec
CDD5.0
EN
CDD 5.0: user manual – Rev.01
Page 50/63
5.9.2
Management of door blocked during opening
The controller implements particular management of the possible door blocked events during door
opening. If the door block happens inside the DOS activation threshold defined by parameter PC38 (refer to
paragraph 5.6.3 “PC38: DOS output activation threshold”), the controller activates the DOS output and
enters in normal door open parking.
In case the mechanical block happens before this position, the controller reacts according to the following
table:
Door block position
Notes
Mechanical block within
20mm of panels closed
position
The controller, once the mechanical block has been detected, proceeds with 5
consecutive unlocking retries.
Mechanical block within
2/3 of the door opening
The controller, once the mechanical block has been detected, reduces the motor
torque within nominal values. If the obstacle is removed, the door will complete the
opening with reduced speed.
The DOS output is not active until PC38 defined position
Mechanical block between
2/3 of the door opening
and the position defined by
PC38
The controller, once the mechanical block has been detected, reduces the motor
torque within nominal values. If the obstacle is removed, the door will complete the
opening with reduced speed.
The DOS output is active, to signal the anticipated door open condition and permit
the normal working of the lift.
Mechanical block over
PC38 defined position
The controller activates the normal door open parking
NOTE: for the first 3 events reported in the table, the door drive increase the internal occurrence counter
of the warning AL12 “Mechanical block”.