11 can be performed in addition to be able to operate the lift at least one operating unit is naturally required fig6 shows such an operating unit 62 which is provided in the interior of the lift car and which besides operating buttons for moving upwards or downwards includes a switch for switching on the control system a reset button an emergency stop switch and an operation fault light in that way the essential lift functions can be controlled and operational readiness or a fault can be signaled fig7 shows an external operating portion 60 by way of which the fundamental functions can be operated for example when transporting material that external operating portion 60 is used when people transport is not involved then the lift which is filled with material can be set in operation for example with the u2018 up u2019 button in order to transport the material upwardly from the base of the installation the u2018 down u2019 button causes automatic travel in the opposite direction that is to say downwardly fig8 shows the side 40 of the control cabinet 38 which is towards the interior of the lift car provided at that side of the control cabinet 38 is a multiplicity.