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14
Emergency evacuation
14.1
General
•
In the event of a mains failure, there is the possibility to carry out an emergency evacuation.
•
By carrying out the emergency evacuation, the elevator cabin is driven into a
fl
oor or the ground
fl
oor.
14.2
Emergency evacuation with 1-phase 230 VAC power supply
14.2.1
General
Due to the low power requirements of a synchronous drive, it is possible to carry out an evacuation trip
in the motoric and generatoric direction.
Due to the high level of magnetization current, emergency evacuation with a single-phase power
supply does not make sense with asynchronous motors.
Requirements:
•
For emergency evacuation with single-phase 230 VAC power supply, the frequency inverter must
provide the following voltage:
–
230 VAC to feed L1 and L2
Characteristics of evacuation with single-phase power supply:
•
Evacuation in motoric and generatoric direction
•
Load-independent starts
•
Load-independent stopping
•
Flush stopping
Process for emergency evacuation with 1-phase voltage supply:
•
The ZAdyn4C analyses the load ratio between the car and the counterweight during every start.
•
Based on the load ratio, the ZAdyn4C communicates to the control the direction in which the
evacuation would be more energy saving.
•
The control system starts the evacuation trip by activating:
–
Controller enable
–
Direction default
–
Speed default
Size of the voltage supply
The required performance consists of the following:
Power consumption for ZAdyn4C electronics
+ Control systempower consumption
+ Electromechanical brakes power consumption
+ Other consumers (car light,
…
) power consumption
+ Motor power consumption during motoric operation with suf
fi
cient power
(ask motor manufacturer)
=
Real power [W]
Information
The shaft ef
fi
ciency has a decisive in
fl
uence on the required power of the single-phase mains supply.
Original operating instructions
ZAdyn4C
Emergency evacuation
R-TBA12_01-GB 2104 Index 012
Part.-No. 00163371-GB
138/224
Содержание ZA dyn 4C
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