21
User’s Manual
STOP
Breakdown
Cause
Solution
The service lift
will
neither go up
nor down!
DANGER!
Attempting to use the lift will jeopardize work safety.
A1 The fixed EMERGENCY STOP
button has been activated.
Deactivate the button in question by
pulling it until it pops out.
A2 Wire rope loop
on traction hoist.
Damaged or defective wire rope or
wire rope outlet causes problems.
Stop work immediately!
Ask the supplier or manufacturer for help.
A3 The fall arrest device is
holding the service lift on the
safety wire.
a) Lift wire rope breakage
b) Hoist failure
a) + b) Evacuate the service lift
according to the “Evacuation
guide”.
A4 The service lift is stuck on an
obstacle.
Carefully remove the obstacle.
Test the operational safety of affected
tower sections. Inform the supervisor.
A5 Power failure
a) Control not switched on or
deactivated.
b) Grid voltage interrupted.
c) Supply between grid connection
and control interrupted.
a) Turn EMERGENCY STOP button to
the right until it is released.
b) Find the cause and wait for the power
to return.
c) Test and if necessary repair the supply
cable, fuses, and/or wiring from the
control box.
A6 Safety switch is triggered
a) EMERGENCY top limit switch was
pressed.
b)
Door switch is not properly
closed
or is defective.
c) Ladder access door switch is
activated.
d) A top or bottom hatch switch is
triggered.
a) Perform manual descent until the
emergency top limit switch is released.
b) Close the door and test the door
switch.
c) Close the door.
d) Close the hatch.
A7 Protection switch on
overheating
a) A phase is missing
b) Motor is not cooling
c) Voltage too high/low
a) Test/repair fuses, supply and
connection.
b) Clean the hood.
c) Measure voltage and power
consumption on the loaded motor.
If voltage deviates from
specifications, use cable with
increased dimensions.
A8 Brake does not open
(no click on on/off)
a) Supply, braking coil or
rectifier defective.
b) Braking rotor closes.
a) Have a certified technician, repair/
replace the supply, braking coil and
rectifier.
b) Return traction hoist for repair.
4.11 Troubleshooting
1.
All tests and repairs to the electronic compo-
nents should be performed by
certified
technicians only!
The wiring diagram is
placed in the power cabinet.
2.
Repairs to the traction hoist, the fall arrest
device and to the system’s supporting compo-
nents should be performed by
certified
technicians only!
DANGER!
Unplug the power supply
before opening the power
cabinet.
