Internal parameter: By selecting this button, the TRC travel
counter and the OHC operating hours counter are reset.
Under menu – parameter – special – maintenance interval one
can set restrictions for the lift operation such as monitoring the
operating hours counter OHC, travel counter TRC and any
changes of direction. This is relevant for instance in case of
installations with plastic ropes which are only fit to perform a
limited number of travels/changes in direction. In order to
reset these counters, the above item is selected and the
procedure recorded in the log.