Key-selector to turn on the auxiliary units and to enable systemoperation.With the selector set to 0, and possibly with the key pulled out, asafety block condition is active: the selector must be moved to thisposition and the key must be removed whenever interventions thatmay undermine operator safety have to be performed.Setting the selector to 1, with the key in it, enables the operation of the weftstraightener with idle rollers (FDC mode).Moving the key-operated selector to position 2 enables the machine to run with fabric drive engaged; this condition is saved in the memory of the unit at the start.When the machine is running it is not possible to turn the roller drive (MDC mode) On or Off, the selection must be made in Stop conditions so as to avoid abrupt variations in the pull applied to thefabric.
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