
____________________ _
ADL300-EPCv2- User Guide
Page 15 of 64
3.2.8 “Target floor call” mode
In this mode the PLC sends the command of the floor to be reached directly via digital inputs or CANopen
control word (floorSel =..4) and a pulse signal of recognition (floor call).
Thus the application already has a target destination before sending a start command.
A request to change destination may be received during travel, with the application giving a negative
response: “Passed Braking Point" or a positive response: “Change target” signal.
3.2.9 Realignment:
The lift car is not mechanically integral with the motor pulley and the lift cables could, for a variety of
mechanical reasons, slip on the motor pulley. This would alter the position of the lift car with respect to that
calculated by the control system using the encoder on the motor, resulting in misalignments. These can lead
to incorrect positioning of the lift car with respect to the floor.
To overcome these problems the control system incorporates the following realignment functions:
•
Static realignment.
•
Dynamic realignment.
3.2.10 Emergency Stop
No operations must be possible during an emergency stop. The external PLC must disable the drive and
apply the brake
.
3.2.11 Battery Run Mode
Battery run mode is enabled in the event of a power failure, if the emergency battery power supply unit is
present. It allows the lift car to reach the nearest floor (in the direction in which it uses least energy) so that
passengers can get out, without the manual operations required with conventional systems.
3.2.12 AtFloor - Landing position Reached
The control system generates this signal (AtFloor) each time the landing position is reached
3.2.13 "Passing braking point" signal
This signal is activated, in floor call mode, if the external PLC attempts to change the floor to be reached
while the lift car is moving. In this case the control system evaluates the possibility of stopping at the
requested floor on the basis of the current operating conditions. If this is possible, the system automatically
changes the floor to be reached. Otherwise the previous request is maintained and the system sends a
"passing braking point" signal to the PLC. This is a pulse signal proportional to the length of the call
3.2.13.1 Reverse target safety
This function is used if the PLC generates a call error. This may occur for example if, while the lift car is
travelling, a request is received to stop at a floor in the opposite direction of travel. In this case the control
system generates a "Passed Braking Point" signal and continues to travel towards the previously requested
position.