Cardin Elettronica ZVL321.01 Manuel page 17

Example: with the gate/door completely open
Command sequence: the gate closes for 1 second then opens
Result: the gate moves in the closing direction for 1 second
and in the opening direction for 1 + 3 seconds, so the motor remains
under tension for 3 seconds after the gate is completely open.
If this compromised the garage door installation you will have to install the necessary travel limit.
2) During blackouts the programmer will lose the position of the garage door and the following situ-
ations will arise:
2a) without closing direction travel limits (or with non active travel limits) the door will be assumed
to be completely closed.
2b) with an active closing direction travel limit the programmer will know the exact position of the
door.
2c) with an active opening direction travel limit the programmer will know the exact position of
the door. In the first case "2a" closing commands are not allowed (only opening commands)
which is the same for the second case "2b". In the third case "2c" only closing commands are
allowed.
The work times are programmed in this transitory phase in such a way as to guarantee the complete
opening of the door and successively complete closing.
Attention! To enable this situation; when the system is restarted with the door not completely
closed the motor will be kept under tension (for longer than normally necessary) during the first
cycle. This remains valid until the cycle has been completed and the door is completely closed.
At this point the programmer will once again know the exact position of the door.
ELECTRIC LOCKING DEVICE
The electric locking device only activates during opening and reopening. This occurs for the each
movement command given after start up until the door is completely closed. From this point onwards
the electric lock will only activate when the door is in proximity with the completely closed position
(this avoiding necessary activation).
During time programming it is most important that the time margin between the arrival of the
gate in the completely open position and the end of the programmed work time does not exceed
4 second.
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