gefran KFM LD, Instruction Manual

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2.9.12. Trigger signal from the elevator control - trigger with 24V logic signals
The elevator control unit must provide the following:
1. +24V reference potential for all signals sent to the control electronics on
2. 0V isolated inputs / outputs.
3. TO signal "Open door"
4. TU signal "Close door"
5. TUL signal "Nudge" (close door slowly) (optional)
6. Approval inspection
Activation: +24V DC – The inputs on the control electronics are isolated. Activation with 230V AC can only
take place if the trigger signals are converted externally to 24V DC. The input signals can be applied as 0 Volt
switching or 24 Volt switching. Codification is performed via the polarity of the 24 Voltage supply.
Mixed operation of 0 Volt switching / 24 Volt switching of the input signals between one another is not possible.
The trigger signals are processed by the control electronics depending on the state, i.e., the corresponding
action is only performed while the respective signal is applied. If all the trigger signals are inactive, the KFM LD
door drive switches to a state without torque.
Note ! If a stop switch is used, a TO and TU signal must be sent to the door drive parallel to the main switch. (stop function).
The KFM LD door drive has no CAN interface that can be used in combination with elevator control !
2.9.13. Signals to the control system
The following output signals are output as status signals (acknowledgements):
Default TSU – door connected
Default TSO – door open
Default >150N – indicator indicating closing force exceeded
The status signals are switched by transistors which, depending on the connection version, act either as tran-
sistor with open commutator or as transistor with open emitter. These connections are short-circuit-protected.
The outputs can be programmed via the function (aoes) (dF96) “Selection TSU/TSO as break contact/ make
contact” in such a way that in the case of a pending acknowledge signal of the transistor
• blocked corresponds to 0 = break contact,
or
• switched through – corresponds to 1 = make contact.
The acknowledge signals are isolated. Reference potential is +24V DC, and/or 0V, maximum current: 50 mA. If
relays are switched with the signals, external freewheeling diodes must be fitted. The acknowledge signals can
be output as 0 Volt switching or 24 Volt switching. Codification is performed via the polarity of the 24 Voltage
supply.
Mixed operation of 0 Volt switching / 24 Volt switching of the acknowledge signals between one another is not
possible. Mixed logic is, however, possible for the trigger and output signals of the door drive.
2.9.14. Door inspection switch
There is a door inspection switch on the KFM LD door drive. If the "Approval inspection" signal is active, the
door can be opened and closed by pressing the button.
The door inspection switch switches this signal internally to the TU or TO inputs.
2.9.15. Drive settings
All parameter settings, such as speed, acceleration, etc., can be changed with the service programs E@
syDrives and diagnostic unit 6. The program steps and parameters to be entered are described in the instruc-
tions for the programs.
KFM LD • Instruction manual
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