cegard/Lift LX/LY
English
© CEDES | V 2.10
7
5.3 Timing diagrams
5.3.1 General timing diagram
Latch_In
Driving
release
Driving
release
Active
Inactive
Drive
Drive
Zone
OFF
Zone
ON
Zone
OFF
Slow
Stop
Option 2
Override delay
Flush position
Safety circuit
Latch_Out
Protection field
1
2
3
3
1
1
1
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:
1.
The output relays are automatically tested 5 s after
Latch_In (Riegel_In)
drops out if the input remains
broken. The test is carried out immediately if a travel command occurs during this time period.
2.
The output relays are automatically tested 10 s after
Latch_In (Riegel_In)
drops out if the input is under
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).
Active
: Light curtain interruption causes an emergency stop
Inactive : Light curtain interruption has no effect
