However, as conservation requirements can differ, it is possible to use existing weights and pulleys if necessary.
The unit provides uninterrupted weight power, even during the process of winding. Safety switches guard against over-winding and the system battery maintains power to the motor in the event of a power failure.
If the power supply is interrupted for a lengthy period, the weights will come to rest safely on the floor until power is restored, when the unit will re-wind.