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2.9.6. Stop function
The door delays with redirection speed until it is stationary and then adjusts the position achieved when sta-
tionary. Moving the door by force, e.g., by hand, results in the door moving back to the original position when
released. Intentional changing of the stop door position is only possible via the TO, TU and TUL trigger signals.
The stop function can be cancelled by entering altered trigger signals.
2.9.7. Slip opening
(Partial opening of the door that can be defined within the opening width.) The slip opening function makes it
possible to adjust the door drive in such a way that the door only opens partially in certain cases (e.g., after
interruption of the light barrier). The set value (TSSOE) up to which the door can be opened lies between 100%
and 900% of the door width. The setting is made using a service program.
2.9.8. Tripping
Slip opening is tripped under the following conditions: The TO and TUL trigger signals (nudging) are applied
simultaneously, TU is inactive and the slip function on the control device of the KFM LD door drive is activated.
(Activated by entering the % value.) The door travels to the door position set for slip opening (TSSOE).
As long as the signals for slip opening are applied, the drive regulates to this set position (same as stop func-
tion). If the TO and TUL control signals (nudging) are applied simultaneously and the slip function is not acti-
vated, the drive behaves as with the stop function. The slip opening function can only be activated if a value for
the desired door position is set. With slip opening, the door behaves as follows depending on the door position:
1. The door is located between TSSOE and TSO. If the slip opening command is now issued, the door stops
at reopening speed and remains at a standstill in stop mode (i.e., the door drive regulates to position) until
another door command is applied.
2. The door is located between TSU and TSSOE; door opens. If the command for slip opening is issued now,
the door opens up to the TSSOE position and then stops at reopening speed. The door remains at a stand-
still in the stop mode until another door command is pending.
3. The door is located between TSU and TSSOE; the door does not open. If the slip opening command is now
issued, the door reopens if necessary and moves directly to the TSSOE position. The door remains at a
standstill in the stop mode until another door command is pending.
2.9.9. Drive without torque
The drive is without torque, but not switched off. The door movement is monitored by the drive. If the door
closes at excessively high speed, the drive brakes the door. This prevents the landing door from closing at ex-
cessive speed. Below the speed threshold and in the "OPEN" direction, the door can be moved easily by hand.
The door drive monitors the changed door position and takes it into account in a subsequent door movement.
The "Drive without torque" state must be cancelled by entering altered trigger signals.
2.9.10. Closing force monitoring
The KFM LD door drive can learn a certain force as the maximum door closing force (150 N limitation). The
door drive can be set in such a way that it automatically reopens and then recloses when the learned maximum
door closing force is reached.
2.9.11. Opening force monitoring
The requirements for glass doors are ensured with automatic commissioning in hex switching position S2 = 7,
8, or 9. This means force limitation during complete opening and a reduction of the kinetic energy. Upon reach-
ing 150N, the drive stops immediately and is then torque-free. By changing the control command, the control
system can again immediately access the drive.
This option must not be activated on fire service elevators, as the elevator control system is not notified of the
behaviour of the door drive.
Caution
Note !
The reopening of the door occurs by the elevator control unit. Trigger signal from the elevator control - trigger with 24V logic
signals.
18
KFM LD • Instruction manual
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