Lift overview
(see Illustration A)
Make sure page 2 in this manual is completed by the dealers installation service.
1 spa cabinet
2 drive cap
3 quick lock screw M12 allen
4 foldaway drive
5 carbon support
6 carriage mechanism
7 circlip (securing clip)
8 cover dowel
9
cover hinges
10 coded smart key
11 smart key docking station
12 foldaway control box
13
infrared remote control (optional)
System description
The foldaway lift controller is designed for driving two self locking 24V DC actuators in parallel by
applying pulse width modulated signals (PWM) at a frequency of 16kHz. This high frequency gives
the systems it´s high efficiency, low noise and low power stage loss.
The drive is synchronized with actuator pulse feedback signals. The synchronization is achieved by
adjusting actuator speed during drive. If the adjustment can not compensate the unbalance
between the actuators, both motors stop.
The logic board monitors current limits, position sensor data and the power stage temperature limit.
The basic lift control is done with open and close commands from the smart key panel. Any
additional command after lift utilization stops the driving without time delay.
The automatic cover realignment makes the foldaway lift a fit and forget system without special
maintenance tasks.
All programmed routines are microprocessor controlled, the system takes over control at defined
steps in the cover movement sequence and completes the intended process without user
interaction.
The insulation cover rests tight as possible on the tub. No energy is lost and cover freezing is
reduced to a minimum.
The automatic closing routine is finished when both drives reversed after touchdown and the smart
key illuminates in green.
9
