An assembly comprising: - a movable element (12,38,42) being movable in relation to a base (14,32), - a first electric motor for moving the element (12,38,42) in relation to the base (14,32), the motor (16,18,34,40,44) having one or more first windings each having at least two inputs, - a first braking element being adapted to determine whether power and/or signals are provided to the first motor (16,18,34,40,44) and being adapted to alter between at least two modes wherein: - in a first of the modes, no power/signals is/are provided to the first motor (16,18,34,40,44) and a first galvanic connection is provided between the inputs of at least one of the first windings and a first element having a predetermined resistance, - in a second of the modes, power/signals is/are provided to the first motor (16,18,34,40,44) and the first galvanic connection is disconnected, - a second electric motor for moving the element in relation to the base (14,32), the second motor having one or more second windings each having at least two inputs, - a second braking element being adapted to determine whether power and/or signals are provided to the second motor and being adapted to alter between at least two modes wherein: - in the first mode, no power/signals is/are provided to the second motor and a third galvanic connection is provided between the inputs of at least one of the second windings and a second element having a predetermined resistance and - in a second of the modes, power/signals is/are provided to the second motor and the third galvanic connection is disconnected and - a controlling element (22,46) adapted to determine if one of the braking elements is in the first mode and, if so, bring the at least one other braking element into its first mode. - a movable element (12,38,42) being movable in relation to a base (14,32), - a first electric motor for moving the element (12,38,42) in relation to the base (14,32), the motor (16,18,34,40,44) having one or more first windings each having at least two inputs, - a first braking element being adapted to determine whether power and/or signals are provided to the first motor (16,18,34,40,44) and being adapted to alter between at least two modes wherein: - in a first of the modes, no power/signals is/are provided to the first motor (16,18,34,40,44) and a first galvanic connection is provided between the inputs of at least one of the first windings and a first element having a predetermined resistance, - in a second of the modes, power/signals is/are provided to the first motor (16,18,34,40,44) and the first galvanic connection is disconnected, - in a first of the modes, no power/signals is/are provided to the first motor (16,18,34,40,44) and a first galvanic connection is provided between the inputs of at least one of the first windings and a first element having a predetermined resistance, - in a second of the modes, power/signals is/are provided to the first motor (16,18,34,40,44) and the first galvanic connection is disconnected, - a second electric motor for moving the element in relation to the base (14,32), the second motor having one or more second windings each having at least two inputs, - a second braking element being adapted to determine whether power and/or signals are provided to the second motor and being adapted to alter between at least two modes wherein: - in the first mode, no power/signals is/are provided to the second motor and a third galvanic connection is provided between the inputs of at least one of the second windings and a second element having a predetermined resistance and - in a second of the modes, power/signals is/are provided to the second motor and the third galvanic connection is disconnected and - in the first mode, no power/signals is/are provided to the second motor and a third galvanic connection is provided between the inputs of at least one of the second windings and a second element having a predetermined resistance and - in a second of the modes, power/signals is/are provided to the second motor and the third galvanic connection is disconnected and - a controlling element (22,46) adapted to determine if one of the braking elements is in the first mode and, if so, bring the at least one other braking element into its first mode.