Timing Diagrams - Cedes cegard/Lift LX/LY Installations- Und Bedienungsanleitung

cegard/Lift LX/LY
5.3

Timing diagrams

5.3.1 General timing diagram
Latch_In
Option 2
Override delay
Flush position
Safety circuit
Latch_Out
Active
Protection field
Inactive
Active : Light curtain interruption causes an emergency stop
Inactive : Light curtain interruption has no effect
Figure 2:
General timing diagram
 A change of status of one of these two signals during a journey does not influence the system function.
Light curtain overriding only occurs if both signals are LOW.

A change of status of this signal during a journey does not influence the system function. It is used to test
the safety circuit when the latch has dropped out. The following three versions are possible:
The output relays are automatically tested 5 s after Latch_In (Riegel_In) drops out if the input remains
 1.
broken. The test is carried out immediately if a travel command occurs during this time period.
The output relays are automatically tested 10 s after Latch_In (Riegel_In) drops out if the input is under
2.
a permanent voltage of >12 VAC/DC. The test is carried out immediately if a travel command occurs
during this time period.
3. A test is carried out if the input is HIGH in the neutral status (>12 VAC/DC) and receives a negative
edge when Latch_In (Riegel_In) has dropped out. The timing of breaking the safety circuit can thus be
specified by the elevator controller (e.g. at flush position).
© CEDES | V 2.8
Driving Zone
release Drive OFF
3
3
Zone
Slow ON Stop
1
1
2
English
Zone
Driving
release Drive OFF
1
1
7