OMEGA
Installation Manual
Edition February
2020
Omega
platform lift
page 39 of 52
Explanation of the electrical concept
The New Omega F system is based on the Powerline technology. Powerline communication
(PLC) carries data on a conductor that is also used simultaneously for AC electric power
transmission. In the case of the Omega the tension cable is used as mechanical pulling
force, AC power transmission to the platform as well as a conductor for the Powerline
communication.
The Omega Powerline control is a digital control, consisting of 2 control systems:
1.
Platform control board
with platform control switches located inside the
platform sidewall
2.
Drive unit control
board
with motor control and control switches on rail and
drive unit.
The communication between these 2 control systems happens via the rope/rail system of
the lift.
Characteristics:
Due to the use of programmable micro controls the characteristics on the control can easily
be changed and adapt to specific circumstances needed. As the communication between
the drive unit and the platform works via a digital BUS system it is possible to transfer a data
packet out of 2
64
possible ones. The secure transfer of this data is guaranteed by the use of
the Powerline technology and the applied data transfer protocol.
Additionally it is possible to add an optional Ethernet module in order to allow for remote
diagnosis via de internet.
Security concept:
For any drive command a double signal transfer is necessary between the 2 controls. Any
drive command always needs to be processed by both control systems, thus ensuring that
both systems have to be intact in order to confirm any drive command. Communication is
based on the Powerline technology, using a frequency band in the area of 100 kHz for data
transfer.
As a second condition for safety components such as the main contactors K1, K2 and K11,
an AC voltage signal (50Hz) is required on the tension rope. The control of this signal is
given by 2 independent safety relays with dropout check.
In order to allow movement of the platform 2 security conditions have to be fulfilled:
1. Communication between the controls via the rail-rope BUS system
2. Safety relays have to be active
If there is a discontinuity of the data transfer between the controls or a short circuit of the
rail-rope system then the unit will stop, as in this case neither the Powerline signal nor the
AC voltage signal can be transmitted.
Therefore, if 1 security system is defect the second will still be active and guarantee a safe
stop of the unit in case of a failure.
