OMEGA
Installation Manual
Edition July 2013
Omega
platform lift
page 30 of 46
Name
Number
Reaction
Possible reason
Wrong impulses
in intermediate
landing station
area
7 (7)
Only slow drive
possible
If the counted impulses in the
landing stations differ too much from
the saved impulses.
A possible reason can be that the
stop assembly in the intermediate
landing stations has been moved
after the teach-in mode.
Wrong impulse
on limit switch
8 (8)
Only slow drive
possible
If too many impulses are counted
while a limit switch is still pressed.
This can be a signal that a limit
switch contact did not close after the
unit left the landing station.
Power cut off on
runway
9 (9)
Only slow drive
possible
If the platform is on the runway
(outside of landing stations) and a
power cut occurs then the unit
cannot detect its position on the rail.
The platform then has to be driven in
slow drive mode into the next
landing station were the failure will
automatically reset.
Wrong rotation
direction of motor
10 (A)
Only slow drive
possible
If the encoder detects a different
rotation directions than the inverter
produces.
Solution: Interchange contacts IMP1
and IMP2 on drive unit control board
Brake is weak
11 (b)
Only slow drive
possible
If the drive is stopped and the
encoder still detects a certain
amount of impulses it is an indication
that the brake does not stop the lift
correctly.
Overload
12 (C)
Drive only till the
next landing
station, then stop
If the platform is overloaded and the
overload switch SU gives a signal to
the controller.
Motor
temperature
13 (d)
Drive only till the
next landing
station, then stop
The thermostat relay in the motor
was activated.
Short circuit
between the
tension rope and
the rail
14 (E)
Drive only till the
next landing
station, then stop
If there is a short circuit between the
tension rope and the rail
