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Gearless Lift Machine
WSG/WGG-29
Operating Instructions
Code
GM.8.002662.EN
Date
04.02.2019
Version
0.19
Page
20
Subject to changes without notice ! Subject to changes without notice !
EN
6.5. Emergency evacuation
Danger
Only qualified service personnel are permitted to take any evacuation measures in the event
of an emergency.
Emergency evacuation by electrical means
• Alternatively, the brakes can be released electrically in an emergency, using the mains or a UPS.
• When resorting to this method of emergency evacuation, refer to the relevant instructions in the operating
manual regarding the control system, the inverter and the evacuation unit (with UPS).
Remote brake control by Bowden cable
Emergency evacuation by mechanical means
• The brakes (3) can be released remotely by
hand using a lever block (1) and Bowden ca-
bles (2).
The installation and operation of this device is
described in section 10.4. "Remote control of
the brake by Bowden cable". The lever block
and the Bowden cables are available sepa-
rately.
• If the brakes are released manually, the lift car
moves in the direction of the higher weight.
• The motor winding should be short-circuited
using the motor contactors. This prevents the
lift from accelerating in an uncontrolled man-
ner, since the short-circuiting produces a
speed-dependent braking torque.
• It may transpire that the braking torque pro-
vided by short-circuiting the motor is insuffi-
cient to restrict the speed of the lift. You
should therefore keep a close eye on the car
speed during evacuation and halt the evacua-
tion if necessary.
• Stop the manual release of the brake when the car has reached the next floor. The trapped passengers can
now be evacuated.
Warning
When attempting an evacuation, the car may not move even when the brakes are released, as
a result of load compensation between the car and the counterweight. In this case, add
weight to the car by suitable means, e.g. sand bags, or use the mechanical return motion
device.
Warning
After releasing the brakes manually, check that
the manual release levers (4) return to their
original position.
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2
Original position Brake released
(Rear side of brake)
