22
AVANTI Service Lift for Wind Turbines
!
Breakdown
Cause
Solution
The service lift will
neither go up
nor down!
A9 The key switch (if
installed) ON/OFF has not
been activated.
Turn the key to ON.
A10 The main switch is in the
OFF position.
Turn the main switch ON.
A11 Rescue pendant control is
plugged.
- Use rescue pendant control in case of rescue
event.
- Otherwise, unplug pendant control.
Service lift goes
down but not up
Irresponsible behaviour
jeopardizes system safety!
B1 The service lift is stuck on
an obstacle.
Carefully move the service lift downwards
and remove the obstacle.
Test the operational safety of affected
platform components.
Inform the supervisor.
B2 Overload
- Buzzer sounds in
the connection cabinet.
Test and possibly reduce load until buzzer stops.
B3 Top obstruction switch:
a) Top obstruction switch is
defective or not connected properly.
b) Top obstruction switch is
activated.
a) Test the top obstruction switch connec-
tion/function. Replace if necessary.
b) Move lift down until the top obstruction
switch is released.
B4 A phase is missing
Test fuses and power supply.
B5 Fault in UP control circuit
in control box or traction system
Test and possibly repair connections,
wiring and relays.
Motor hums
loudly or wire
ropes squeak,
but the lift can
go both up and
down.
C1 Wire ropes dirty
WARNING!
Further use of lift may
result in damage to the
wire rope traction.
If possible, immediately replace
the traction system and return it for
test/repair at AVANTI.
STOP
DANGER!
Unplug the power supply
before opening the power
cabinet.
