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The drive unit
34
4.2.4
Signals on the control units
Each control unit is equipped with a LED. This LED indicates the status of the stairlift:
Indication
Meaning
Constant green led
Joystick has been operated and the stairlift is moving
or will move
Continuous flashing green led on armrest control
No RF communication link possible
2 flashes of green led on armrest control
Batteries of call and park unit almost empty
Flashing green led on C&P or ATT
the batteries of this control unit are (almost) empty
Flashing red led on armrest c warning sound
(intermittent beeps) from drive unit
The system gives a warning signal: see error list
Flashing red led on armrest c warning sound
(fast intermittent beeps) from drive unit
The stairlift has encountered an obstacle and will stop.
Only moving in the opposite direction is possible
Constant red led on armrest c warning sound
(fast intermittent beeps) from drive unit
There is a malfunction in the stairlift : see error list
Two tone beep (high-low) during 3 seconds, repeated
every 13 seconds
The stairlift is not on a charging point
Two tone beep (low-high)
The stairlift is about to start (sound starts every 1 s
after operating UI of C&P joystick)
4.3
Power supply system
4.3.1
System assembly
The stairlift is supplied by two rechargeable maintenance-free batteries (12V/7Ah). The batteries provide a safe
power supply while moving.
Figure 4-16: Batteries in the stairlift
These batteries are charged when the stairlift is not moving and placed on a charging contact. Charging contacts are
placed at various positions on the rail but at least at the start and end position and if applicable on a parking
position. The charging contact are connected to a the mains via a power transformer and feeder cable inside the rail.