Corghi ERCO X4300 Serie Betriebsanleitung Seite 78

Electronic aligner (fig. 13): this device consists of 2 position transducers (potentiometers)
and the electronic control board.
The electronic control board reads the signals from the two position transducers to check
continuously whether the misalignment of the two runways has reached or exceeded 50
mm; if so, the circuit board cuts out the current function immediately, and switches the
lift to "alarm" status.
For further information on the behaviour of the lift in case of misalignment between the
runways, read the Chapter "Indicators and audible signals".
Anti-crushing safety: the control board stops the descent when the runways reach a height
of approx. 780 mm from the ground and emits an intermittent sound:
To continue the descent, the pressed button must be released and then pressed again;
in this way, the runway descent will continue until the lift complete closure.
WARNING
No safety devices must ever be tampered with, disabled, moved or removed, as this
might put the operator at risk. the manufacturer declines all liability deriving from
failure to comply with the above rule.
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78 Operator' s manual