Computec
CDD5.0
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CDD 5.0: user manual – Rev.01
Page 37/63
5.3
Reversing management in closing direction
5.3.1
PC00: reversing events management
Parameter value
Notes
00 = internal
(default value)
The door drive, once received the activation of a reversing source, external or internal
(closing force limiter), reopens automatically the door activating the RVS output,
without waiting for any command from the MLC.
01 = external when
moving
The door drive, once received the activation of a reversing source, external or internal
(closing force limiter), stops the current movement, activates the RVS output and waits
for a command from MLC.
02 = external
parking.
As previous value, in addition the door drive checks the external reversing sources
(barriers, photocells) status, if directly connected to it, also during parking with door
opened. In case the reversing sources are active, the drive will not execute closing
command and activates RVS.
NOTE:
if values
01 or 02 are set, the controller waits always for a DOC command from the MLC to reopen; if after 0.5s
from the reversing event activation the DOC command is not yet active, the door starts to close with reduced speed
and activates the AL03 warning to store the MLC reversing not activated in the statistics.
5.3.2
PC34: RVS output activation type
This parameter regulates the RVS output duration, as reported in the following table:
Parameter value
Notes
00 = active until DOC
command activated
The door drive, once the external reversing source is active or the closing force limiter is
active, activates the RVS output that remains active until MLC will activate its DOC
command.
01 = active until
reopening completed
(default value)
The door drive, once the external reversing source is active or the closing force limiter is
active, activates the RVS output that remains active until the reopening movement is
completed.
02 = active for 0.5s.
The door drive, once the external reversing source is active or the closing force limiter is
active, activates the RVS output for 0.5s.
NOTE: 00 and 02 values are active only if PC00 is different from 00.
5.3.3
PC42: Closing force limit Auto-set
This parameter permits to enable/disable the auto-tuning function of the closing force limit:
Parameter value
Notes
00 = disabled
The closing force limit auto-tuning function is not active, and the set value for the
closing force limit (see next page) remains unchanged.
01 = enabled
(default value)
The auto-tuning function is active::
-
Every time that the closing force limiter detects an obstacle, a reversing event
is generated. The closing force limiter
automatically increments the closing
force limit by 6N
, until the maximum value FMAX
-
Every time that a closing movement is completed without obstacle, the closing
force limiter
automatically decreases the closing force limit by 0.1N,
until the
minimum value FMIN
This management permits to adapt the system reaction to the change of frictions.
IMPORTANT: when this function is enabled it is very important to define the FMIN limit
to avoid false reversing and assure that reversing happens according active codes.