Cedes cegard/Lift LX/LY Installations- Und Bedienungsanleitung Seite 5

cegard/Lift LX/LY
The function of interface signals is described in detail in the
following chapters.
The plug-in system controller monitors the correct function
of interface signals. The elevator is immediately shut down
if an error is detected and an appropriate error message
appears on the diagnosis display.
The polarity at connections is irrelevant when actuating
internal call signals with AC voltage. Correct polarity should
be ensured for all other signals (see also Chapter 6.2.
and 7).
5.2.1 Internal call signal / Reset signal
- See also Chapter 7: K7–K15
If an emergency stop is caused by the interruption of the
light curtain, an H is displayed. The elevator can only be
released from this emergency stop state by the pressing
of a reset button from within the elevator car itself. There
are eight independent reset inputs for this purpose. The
journey can be continued if at least one of the inputs
receives a negative or positive impulse (i.e. a reset button,
for example, can be allocated to one of the internal call
signals).
A call signal (and consequently, a test) during a journey
does not adversely affect the function (i.e. safety contacts
do not drop out (double or multiple start).
Special operating mode:
The service button on the plug-in system controller provides
the elevator fitter with the possibility to simulate an internal
call signal during commissioning and inspection (after an
emergency stop). This enables the safety contacts to be re-
closed from the elevator cabin roof.
5.2.2 Latch power supply (Latch_In (Riegel_
In))
- See also Chapter 7: K24-K25
The latch power supply is used to enable transit and to
unlock the door.
The bypassing of the light curtain is cancelled by the
Latch_In latch power supply HIGH signal, the Latch_Out
output is switched through and the door is locked as a
result. An F is displayed and every interruption of the light
curtain now results in an emergency stop.
The latch circuit is described in Chapter 8.
5.2.3 Override delay and Option 2 (premature
overriding)
- See also Chapter 7: K18-K19 / K22-K23
The light curtain can be bypassed with the Override delay
(bypass delay) and Option 2 inputs. An U is displayed.
Bypassing can begin before the Latch signal switches to
LOW. The light curtain is then overridden if both inputs are
LOW:
© CEDES | V 2.8
Override delay
HIGH
LOW
HIGH
HIGH
These signals should have changed status at least twice
during a travel cycle (journey enabled - journey - stop at
floor - journey enabled). If one of the signals remains LOW
an error is interpreted and the elevator is shut down by
breaking the safety contacts (see also Chapter 11.1, error
no. 5 and 6).
5.2.4 Flush position (Testing)
- See also Chapter 7: K20-K21
Safe function of the output relays should also be checked,
as these are located in the evaluation plug-in safety
components in the elevator safety circuit. Testing of the
plug-in system controller breaks the output contact for
approx. 100 ms. This test is carried out after each elevator
trip. The test timing can be controlled with the Flush
position (Bündigstellung) input to avoid any influence on
the elevator control system.
The cegard/Lift offers three test control versions:
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 the test can thus be specified by the
elevator control system (e.g. at flush position). It
means, for example, that the Latch_In input will be
frequently bypassed with the 'Flush' position input
(Bündigstellung), which leads to a test immediately
after the Latch signal switches to LOW.
5.2.5 Automatic start during power-up
The cegard/Lift automatically carries out a self-test after a
power cut and only closes the safety circuits when the test
has been concluded successfully. The cegard/Lift is ready
for operation after the safety circuits are closed.
Option 2 Light curtain
overriding
HIGH Inactive
HIGH Inactive
LOW Inactive
LOW Active
English
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