6.5.1 Power ON and the OSG switch has been
switched OFF. The car has run overspeed
• Inform the passengers that you are about to
let them out and they must not try to do any-
thing by themselves
• Switch OFF the possible battery backup (1)
from the EBRA20 control
• Reset the OSG switch (2) - OSG is accessible
(e.g. in the machine room)
If the OSG is not accessible (e.g. is placed in
the shaft head room), bridge in the con-
troller cabinet ONLY the normally closed
contact of the OSG switch (2) which is put
in series with the EBRA20 magnet via the
travelling cable (attention: do NOT bridge
the normally closed contact from the safe-
ty circuit).
• Recycle the power supply (3) in order to get
EBRA20 open
KEEP FINGERS on the switch so that the
brake can be actuated by switching the
power off if the elevator car rushes up or
down
• If the car does not move even if the EBRA20
brake is open follow the rescue plan given for
that specific elevator type to get the car to the
door zone
Normally:
open the motor brake and turn
the hand wheel.
Resp. if the elevator is equipped with
recall-drive:
drive that far to enable pas-
senger rescuing through car doors.
• Open the door and let the passengers come
out
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