12.3
Emergency evacuation by opening the brakes
Emergency evacuation through manually or electrically opening the motor brakes until the cabin has
reached the next
fl
oor in the direction of the pulling load.
If an emergency evacuation is carried out by opening the brakes, the motor windings should be short-
circuited for the evacuation to prevent an uncontrolled acceleration of the elevator. The short-circuit
generates a speed-dependent braking torque, suf
fi
cient in most cases to reduce the elevator speed to
a safe level.
CAUTION!
Attention!
Short-circuiting of the motor windings must be permitted by the motor manufacturer. This is tested and
guaranteed for ZIEHL-ABEGG motors.
12.3.1
Monitor function
Monitoring of evacuation direction and evacuation speed during the evacuation process.
The monitoring function will be activated by a digital input.
Control system
|
-
"
f_I08
41:Monitor
|
-
"
41:Monitor
Function of I08
Con
fi
gure the digital input in the
Control system
menu to the function
41:Mon-
itor
.
Activating of the monitoring function
•
Switch off the ZAdyn4B
•
activate the digital input with the "Monitoring" function
•
Switch on the ZAdyn4B
•
Monitoring function is active
Elevator-Monitor
Speed: 0.2m/s
Direction: up
▲
Distance: +1.24m
Elevator-Monitor
Speed:
Display of the actual evacuation speed
Direction:
Display of the actual evacuation direction
▲
Evacuation speed < Limit V_G1
▲▲
Evacuation speed > Limit V_G1
Distance:
Display of the evacuation distance past
Information
With activated monitor function, all further functions of the ZAdyn4B are locked!
Original operating instructions
ZAdyn4B 110-180
Emergency evacuation
R-TBA15_01-GB 2014 Index 005
Part.-No. 00163453-GB
125/200
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Содержание ZA dyn 4B 110
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